001    package net.minecraft.src;
002    
003    import cpw.mods.fml.common.Side;
004    import cpw.mods.fml.common.asm.SideOnly;
005    
006    import java.util.ArrayList;
007    import java.util.List;
008    import net.minecraftforge.common.IMinecartCollisionHandler;
009    import net.minecraftforge.common.MinecartRegistry;
010    import net.minecraftforge.common.MinecraftForge;
011    import net.minecraftforge.event.entity.minecart.MinecartCollisionEvent;
012    import net.minecraftforge.event.entity.minecart.MinecartInteractEvent;
013    import net.minecraftforge.event.entity.minecart.MinecartUpdateEvent;
014    
015    public class EntityMinecart extends Entity implements IInventory
016    {
017        /** Array of item stacks stored in minecart (for storage minecarts). */
018        protected ItemStack[] cargoItems;
019        protected int fuel;
020        protected boolean field_70499_f;
021    
022        /** The type of minecart, 2 for powered, 1 for storage. */
023        public int minecartType;
024        public double pushX;
025        public double pushZ;
026        protected static final int[][][] field_70500_g = new int[][][] {{{0, 0, -1}, {0, 0, 1}}, {{ -1, 0, 0}, {1, 0, 0}}, {{ -1, -1, 0}, {1, 0, 0}}, {{ -1, 0, 0}, {1, -1, 0}}, {{0, 0, -1}, {0, -1, 1}}, {{0, -1, -1}, {0, 0, 1}}, {{0, 0, 1}, {1, 0, 0}}, {{0, 0, 1}, { -1, 0, 0}}, {{0, 0, -1}, { -1, 0, 0}}, {{0, 0, -1}, {1, 0, 0}}};
027    
028        /** appears to be the progress of the turn */
029        protected int turnProgress;
030        protected double minecartX;
031        protected double minecartY;
032        protected double minecartZ;
033        protected double minecartYaw;
034        protected double minecartPitch;
035        @SideOnly(Side.CLIENT)
036        protected double velocityX;
037        @SideOnly(Side.CLIENT)
038        protected double velocityY;
039        @SideOnly(Side.CLIENT)
040        protected double velocityZ;
041    
042        /* Forge: Minecart Compatibility Layer Integration. */
043        public static float defaultMaxSpeedRail = 0.4f;
044        public static float defaultMaxSpeedGround = 0.4f;
045        public static float defaultMaxSpeedAirLateral = 0.4f;
046        public static float defaultMaxSpeedAirVertical = -1f;
047        public static double defaultDragRidden = 0.996999979019165D;
048        public static double defaultDragEmpty = 0.9599999785423279D;
049        public static double defaultDragAir = 0.94999998807907104D;
050        protected boolean canUseRail = true;
051        protected boolean canBePushed = true;
052        private static IMinecartCollisionHandler collisionHandler = null;
053    
054        /* Instance versions of the above physics properties */
055        protected float maxSpeedRail;
056        protected float maxSpeedGround;
057        protected float maxSpeedAirLateral;
058        protected float maxSpeedAirVertical;
059        protected double dragAir;
060    
061        public EntityMinecart(World par1World)
062        {
063            super(par1World);
064            this.cargoItems = new ItemStack[36];
065            this.fuel = 0;
066            this.field_70499_f = false;
067            this.preventEntitySpawning = true;
068            this.setSize(0.98F, 0.7F);
069            this.yOffset = this.height / 2.0F;
070    
071            maxSpeedRail = defaultMaxSpeedRail;
072            maxSpeedGround = defaultMaxSpeedGround;
073            maxSpeedAirLateral = defaultMaxSpeedAirLateral;
074            maxSpeedAirVertical = defaultMaxSpeedAirVertical;
075            dragAir = defaultDragAir;
076        }
077    
078        public EntityMinecart(World world, int type)
079        {
080            this(world);
081            minecartType = type;
082        }
083    
084        /**
085         * returns if this entity triggers Block.onEntityWalking on the blocks they walk on. used for spiders and wolves to
086         * prevent them from trampling crops
087         */
088        protected boolean canTriggerWalking()
089        {
090            return false;
091        }
092    
093        protected void entityInit()
094        {
095            this.dataWatcher.addObject(16, new Byte((byte)0));
096            this.dataWatcher.addObject(17, new Integer(0));
097            this.dataWatcher.addObject(18, new Integer(1));
098            this.dataWatcher.addObject(19, new Integer(0));
099        }
100    
101        /**
102         * Returns a boundingBox used to collide the entity with other entities and blocks. This enables the entity to be
103         * pushable on contact, like boats or minecarts.
104         */
105        public AxisAlignedBB getCollisionBox(Entity par1Entity)
106        {
107            if (getCollisionHandler() != null)
108            {
109                return getCollisionHandler().getCollisionBox(this, par1Entity);
110            }
111            return par1Entity.boundingBox;
112        }
113    
114        /**
115         * returns the bounding box for this entity
116         */
117        public AxisAlignedBB getBoundingBox()
118        {
119            if (getCollisionHandler() != null)
120            {
121                return getCollisionHandler().getBoundingBox(this);
122            }
123            return null;
124        }
125    
126        /**
127         * Returns true if this entity should push and be pushed by other entities when colliding.
128         */
129        public boolean canBePushed()
130        {
131            return canBePushed;
132        }
133    
134        public EntityMinecart(World par1World, double par2, double par4, double par6, int par8)
135        {
136            this(par1World);
137            this.setPosition(par2, par4 + (double)this.yOffset, par6);
138            this.motionX = 0.0D;
139            this.motionY = 0.0D;
140            this.motionZ = 0.0D;
141            this.prevPosX = par2;
142            this.prevPosY = par4;
143            this.prevPosZ = par6;
144            this.minecartType = par8;
145        }
146    
147        /**
148         * Returns the Y offset from the entity's position for any entity riding this one.
149         */
150        public double getMountedYOffset()
151        {
152            return (double)this.height * 0.0D - 0.30000001192092896D;
153        }
154    
155        /**
156         * Called when the entity is attacked.
157         */
158        public boolean attackEntityFrom(DamageSource par1DamageSource, int par2)
159        {
160            if (!this.worldObj.isRemote && !this.isDead)
161            {
162                this.func_70494_i(-this.func_70493_k());
163                this.func_70497_h(10);
164                this.setBeenAttacked();
165                this.setDamage(this.getDamage() + par2 * 10);
166    
167                if (par1DamageSource.getEntity() instanceof EntityPlayer && ((EntityPlayer)par1DamageSource.getEntity()).capabilities.isCreativeMode)
168                {
169                    this.setDamage(100);
170                }
171    
172                if (this.getDamage() > 40)
173                {
174                    if (this.riddenByEntity != null)
175                    {
176                        this.riddenByEntity.mountEntity(this);
177                    }
178    
179                    this.setDead();
180                    dropCartAsItem();
181                }
182    
183                return true;
184            }
185            else
186            {
187                return true;
188            }
189        }
190    
191        @SideOnly(Side.CLIENT)
192    
193        /**
194         * Setups the entity to do the hurt animation. Only used by packets in multiplayer.
195         */
196        public void performHurtAnimation()
197        {
198            this.func_70494_i(-this.func_70493_k());
199            this.func_70497_h(10);
200            this.setDamage(this.getDamage() + this.getDamage() * 10);
201        }
202    
203        /**
204         * Returns true if other Entities should be prevented from moving through this Entity.
205         */
206        public boolean canBeCollidedWith()
207        {
208            return !this.isDead;
209        }
210    
211        /**
212         * Will get destroyed next tick.
213         */
214        public void setDead()
215        {
216            for (int var1 = 0; var1 < this.getSizeInventory(); ++var1)
217            {
218                ItemStack var2 = this.getStackInSlot(var1);
219    
220                if (var2 != null)
221                {
222                    float var3 = this.rand.nextFloat() * 0.8F + 0.1F;
223                    float var4 = this.rand.nextFloat() * 0.8F + 0.1F;
224                    float var5 = this.rand.nextFloat() * 0.8F + 0.1F;
225    
226                    while (var2.stackSize > 0)
227                    {
228                        int var6 = this.rand.nextInt(21) + 10;
229    
230                        if (var6 > var2.stackSize)
231                        {
232                            var6 = var2.stackSize;
233                        }
234    
235                        var2.stackSize -= var6;
236                        EntityItem var7 = new EntityItem(this.worldObj, this.posX + (double)var3, this.posY + (double)var4, this.posZ + (double)var5, new ItemStack(var2.itemID, var6, var2.getItemDamage()));
237    
238                        if (var2.hasTagCompound())
239                        {
240                            var7.item.setTagCompound((NBTTagCompound)var2.getTagCompound().copy());
241                        }
242    
243                        float var8 = 0.05F;
244                        var7.motionX = (double)((float)this.rand.nextGaussian() * var8);
245                        var7.motionY = (double)((float)this.rand.nextGaussian() * var8 + 0.2F);
246                        var7.motionZ = (double)((float)this.rand.nextGaussian() * var8);
247                        this.worldObj.spawnEntityInWorld(var7);
248                    }
249                }
250            }
251    
252            super.setDead();
253        }
254    
255        /**
256         * Called to update the entity's position/logic.
257         */
258        public void onUpdate()
259        {
260            if (this.func_70496_j() > 0)
261            {
262                this.func_70497_h(this.func_70496_j() - 1);
263            }
264    
265            if (this.getDamage() > 0)
266            {
267                this.setDamage(this.getDamage() - 1);
268            }
269    
270            if (this.posY < -64.0D)
271            {
272                this.kill();
273            }
274    
275            if (this.isMinecartPowered() && this.rand.nextInt(4) == 0 && minecartType == 2 && getClass() == EntityMinecart.class)
276            {
277                this.worldObj.spawnParticle("largesmoke", this.posX, this.posY + 0.8D, this.posZ, 0.0D, 0.0D, 0.0D);
278            }
279    
280            if (this.worldObj.isRemote)
281            {
282                if (this.turnProgress > 0)
283                {
284                    double var45 = this.posX + (this.minecartX - this.posX) / (double)this.turnProgress;
285                    double var46 = this.posY + (this.minecartY - this.posY) / (double)this.turnProgress;
286                    double var5 = this.posZ + (this.minecartZ - this.posZ) / (double)this.turnProgress;
287                    double var7 = MathHelper.wrapAngleTo180_double(this.minecartYaw - (double)this.rotationYaw);
288                    this.rotationYaw = (float)((double)this.rotationYaw + var7 / (double)this.turnProgress);
289                    this.rotationPitch = (float)((double)this.rotationPitch + (this.minecartPitch - (double)this.rotationPitch) / (double)this.turnProgress);
290                    --this.turnProgress;
291                    this.setPosition(var45, var46, var5);
292                    this.setRotation(this.rotationYaw, this.rotationPitch);
293                }
294                else
295                {
296                    this.setPosition(this.posX, this.posY, this.posZ);
297                    this.setRotation(this.rotationYaw, this.rotationPitch);
298                }
299            }
300            else
301            {
302                this.prevPosX = this.posX;
303                this.prevPosY = this.posY;
304                this.prevPosZ = this.posZ;
305                this.motionY -= 0.03999999910593033D;
306                int var1 = MathHelper.floor_double(this.posX);
307                int var2 = MathHelper.floor_double(this.posY);
308                int var3 = MathHelper.floor_double(this.posZ);
309    
310                if (BlockRail.isRailBlockAt(this.worldObj, var1, var2 - 1, var3))
311                {
312                    --var2;
313                }
314    
315                double var4 = 0.4D;
316                double var6 = 0.0078125D;
317                int var8 = this.worldObj.getBlockId(var1, var2, var3);
318    
319                if (canUseRail() && BlockRail.isRailBlock(var8))
320                {
321                    Vec3 var9 = this.func_70489_a(this.posX, this.posY, this.posZ);
322                    int var10 = ((BlockRail)Block.blocksList[var8]).getBasicRailMetadata(worldObj, this, var1, var2, var3);
323                    this.posY = (double)var2;
324                    boolean var11 = false;
325                    boolean var12 = false;
326    
327                    if (var8 == Block.railPowered.blockID)
328                    {
329                        var11 = (worldObj.getBlockMetadata(var1, var2, var3) & 8) != 0;
330                        var12 = !var11;
331                    }
332    
333                    if (((BlockRail)Block.blocksList[var8]).isPowered())
334                    {
335                        var10 &= 7;
336                    }
337    
338                    if (var10 >= 2 && var10 <= 5)
339                    {
340                        this.posY = (double)(var2 + 1);
341                    }
342    
343                    adjustSlopeVelocities(var10);
344    
345                    int[][] var13 = field_70500_g[var10];
346                    double var14 = (double)(var13[1][0] - var13[0][0]);
347                    double var16 = (double)(var13[1][2] - var13[0][2]);
348                    double var18 = Math.sqrt(var14 * var14 + var16 * var16);
349                    double var20 = this.motionX * var14 + this.motionZ * var16;
350    
351                    if (var20 < 0.0D)
352                    {
353                        var14 = -var14;
354                        var16 = -var16;
355                    }
356    
357                    double var22 = Math.sqrt(this.motionX * this.motionX + this.motionZ * this.motionZ);
358                    this.motionX = var22 * var14 / var18;
359                    this.motionZ = var22 * var16 / var18;
360                    double var24;
361                    double var26;
362    
363                    if (this.riddenByEntity != null)
364                    {
365                        var24 = this.riddenByEntity.motionX * this.riddenByEntity.motionX + this.riddenByEntity.motionZ * this.riddenByEntity.motionZ;
366                        var26 = this.motionX * this.motionX + this.motionZ * this.motionZ;
367    
368                        if (var24 > 1.0E-4D && var26 < 0.01D)
369                        {
370                            this.motionX += this.riddenByEntity.motionX * 0.1D;
371                            this.motionZ += this.riddenByEntity.motionZ * 0.1D;
372                            var12 = false;
373                        }
374                    }
375    
376                    if (var12 && shouldDoRailFunctions())
377                    {
378                        var24 = Math.sqrt(this.motionX * this.motionX + this.motionZ * this.motionZ);
379    
380                        if (var24 < 0.03D)
381                        {
382                            this.motionX *= 0.0D;
383                            this.motionY *= 0.0D;
384                            this.motionZ *= 0.0D;
385                        }
386                        else
387                        {
388                            this.motionX *= 0.5D;
389                            this.motionY *= 0.0D;
390                            this.motionZ *= 0.5D;
391                        }
392                    }
393    
394                    var24 = 0.0D;
395                    var26 = (double)var1 + 0.5D + (double)var13[0][0] * 0.5D;
396                    double var28 = (double)var3 + 0.5D + (double)var13[0][2] * 0.5D;
397                    double var30 = (double)var1 + 0.5D + (double)var13[1][0] * 0.5D;
398                    double var32 = (double)var3 + 0.5D + (double)var13[1][2] * 0.5D;
399                    var14 = var30 - var26;
400                    var16 = var32 - var28;
401                    double var34;
402                    double var36;
403    
404                    if (var14 == 0.0D)
405                    {
406                        this.posX = (double)var1 + 0.5D;
407                        var24 = this.posZ - (double)var3;
408                    }
409                    else if (var16 == 0.0D)
410                    {
411                        this.posZ = (double)var3 + 0.5D;
412                        var24 = this.posX - (double)var1;
413                    }
414                    else
415                    {
416                        var34 = this.posX - var26;
417                        var36 = this.posZ - var28;
418                        var24 = (var34 * var14 + var36 * var16) * 2.0D;
419                    }
420    
421                    this.posX = var26 + var14 * var24;
422                    this.posZ = var28 + var16 * var24;
423                    this.setPosition(this.posX, this.posY + (double)this.yOffset, this.posZ);
424    
425                    moveMinecartOnRail(var1, var2, var3);
426    
427                    if (var13[0][1] != 0 && MathHelper.floor_double(this.posX) - var1 == var13[0][0] && MathHelper.floor_double(this.posZ) - var3 == var13[0][2])
428                    {
429                        this.setPosition(this.posX, this.posY + (double)var13[0][1], this.posZ);
430                    }
431                    else if (var13[1][1] != 0 && MathHelper.floor_double(this.posX) - var1 == var13[1][0] && MathHelper.floor_double(this.posZ) - var3 == var13[1][2])
432                    {
433                        this.setPosition(this.posX, this.posY + (double)var13[1][1], this.posZ);
434                    }
435    
436                    applyDragAndPushForces();
437    
438                    Vec3 var52 = this.func_70489_a(this.posX, this.posY, this.posZ);
439    
440                    if (var52 != null && var9 != null)
441                    {
442                        double var39 = (var9.yCoord - var52.yCoord) * 0.05D;
443                        var22 = Math.sqrt(this.motionX * this.motionX + this.motionZ * this.motionZ);
444    
445                        if (var22 > 0.0D)
446                        {
447                            this.motionX = this.motionX / var22 * (var22 + var39);
448                            this.motionZ = this.motionZ / var22 * (var22 + var39);
449                        }
450    
451                        this.setPosition(this.posX, var52.yCoord, this.posZ);
452                    }
453    
454                    int var51 = MathHelper.floor_double(this.posX);
455                    int var53 = MathHelper.floor_double(this.posZ);
456    
457                    if (var51 != var1 || var53 != var3)
458                    {
459                        var22 = Math.sqrt(this.motionX * this.motionX + this.motionZ * this.motionZ);
460                        this.motionX = var22 * (double)(var51 - var1);
461                        this.motionZ = var22 * (double)(var53 - var3);
462                    }
463    
464                    double var41;
465    
466                    updatePushForces();
467                    
468                    if(shouldDoRailFunctions())
469                    {
470                        ((BlockRail)Block.blocksList[var8]).onMinecartPass(worldObj, this, var1, var2, var3);
471                    }
472    
473                    if (var11 && shouldDoRailFunctions())
474                    {
475                        var41 = Math.sqrt(this.motionX * this.motionX + this.motionZ * this.motionZ);
476    
477                        if (var41 > 0.01D)
478                        {
479                            double var43 = 0.06D;
480                            this.motionX += this.motionX / var41 * var43;
481                            this.motionZ += this.motionZ / var41 * var43;
482                        }
483                        else if (var10 == 1)
484                        {
485                            if (this.worldObj.isBlockNormalCube(var1 - 1, var2, var3))
486                            {
487                                this.motionX = 0.02D;
488                            }
489                            else if (this.worldObj.isBlockNormalCube(var1 + 1, var2, var3))
490                            {
491                                this.motionX = -0.02D;
492                            }
493                        }
494                        else if (var10 == 0)
495                        {
496                            if (this.worldObj.isBlockNormalCube(var1, var2, var3 - 1))
497                            {
498                                this.motionZ = 0.02D;
499                            }
500                            else if (this.worldObj.isBlockNormalCube(var1, var2, var3 + 1))
501                            {
502                                this.motionZ = -0.02D;
503                            }
504                        }
505                    }
506    
507                    this.doBlockCollisions();
508                }
509                else
510                {
511                    moveMinecartOffRail(var1, var2, var3);
512                }
513    
514                this.rotationPitch = 0.0F;
515                double var47 = this.prevPosX - this.posX;
516                double var48 = this.prevPosZ - this.posZ;
517    
518                if (var47 * var47 + var48 * var48 > 0.001D)
519                {
520                    this.rotationYaw = (float)(Math.atan2(var48, var47) * 180.0D / Math.PI);
521    
522                    if (this.field_70499_f)
523                    {
524                        this.rotationYaw += 180.0F;
525                    }
526                }
527    
528                double var49 = (double)MathHelper.wrapAngleTo180_float(this.rotationYaw - this.prevRotationYaw);
529    
530                if (var49 < -170.0D || var49 >= 170.0D)
531                {
532                    this.rotationYaw += 180.0F;
533                    this.field_70499_f = !this.field_70499_f;
534                }
535    
536                this.setRotation(this.rotationYaw, this.rotationPitch);
537    
538                AxisAlignedBB box = null;
539                if (getCollisionHandler() != null)
540                {
541                    box = getCollisionHandler().getMinecartCollisionBox(this);
542                }
543                else
544                {
545                    box = boundingBox.expand(0.2D, 0.0D, 0.2D);
546                }
547    
548                List var15 = this.worldObj.getEntitiesWithinAABBExcludingEntity(this, box);
549    
550                if (var15 != null && !var15.isEmpty())
551                {
552                    for (int var50 = 0; var50 < var15.size(); ++var50)
553                    {
554                        Entity var17 = (Entity)var15.get(var50);
555    
556                        if (var17 != this.riddenByEntity && var17.canBePushed() && var17 instanceof EntityMinecart)
557                        {
558                            var17.applyEntityCollision(this);
559                        }
560                    }
561                }
562    
563                if (this.riddenByEntity != null && this.riddenByEntity.isDead)
564                {
565                    if (this.riddenByEntity.ridingEntity == this)
566                    {
567                        this.riddenByEntity.ridingEntity = null;
568                    }
569    
570                    this.riddenByEntity = null;
571                }
572    
573                updateFuel();
574                MinecraftForge.EVENT_BUS.post(new MinecartUpdateEvent(this, var1, var2, var3));
575            }
576        }
577    
578        @SideOnly(Side.CLIENT)
579        public Vec3 func_70495_a(double par1, double par3, double par5, double par7)
580        {
581            int var9 = MathHelper.floor_double(par1);
582            int var10 = MathHelper.floor_double(par3);
583            int var11 = MathHelper.floor_double(par5);
584    
585            if (BlockRail.isRailBlockAt(this.worldObj, var9, var10 - 1, var11))
586            {
587                --var10;
588            }
589    
590            int var12 = this.worldObj.getBlockId(var9, var10, var11);
591    
592            if (!BlockRail.isRailBlock(var12))
593            {
594                return null;
595            }
596            else
597            {
598                int var13 = ((BlockRail)Block.blocksList[var12]).getBasicRailMetadata(worldObj, this, var9, var10, var11);
599    
600                par3 = (double)var10;
601    
602                if (var13 >= 2 && var13 <= 5)
603                {
604                    par3 = (double)(var10 + 1);
605                }
606    
607                int[][] var14 = field_70500_g[var13];
608                double var15 = (double)(var14[1][0] - var14[0][0]);
609                double var17 = (double)(var14[1][2] - var14[0][2]);
610                double var19 = Math.sqrt(var15 * var15 + var17 * var17);
611                var15 /= var19;
612                var17 /= var19;
613                par1 += var15 * par7;
614                par5 += var17 * par7;
615    
616                if (var14[0][1] != 0 && MathHelper.floor_double(par1) - var9 == var14[0][0] && MathHelper.floor_double(par5) - var11 == var14[0][2])
617                {
618                    par3 += (double)var14[0][1];
619                }
620                else if (var14[1][1] != 0 && MathHelper.floor_double(par1) - var9 == var14[1][0] && MathHelper.floor_double(par5) - var11 == var14[1][2])
621                {
622                    par3 += (double)var14[1][1];
623                }
624    
625                return this.func_70489_a(par1, par3, par5);
626            }
627        }
628    
629        public Vec3 func_70489_a(double par1, double par3, double par5)
630        {
631            int var7 = MathHelper.floor_double(par1);
632            int var8 = MathHelper.floor_double(par3);
633            int var9 = MathHelper.floor_double(par5);
634    
635            if (BlockRail.isRailBlockAt(this.worldObj, var7, var8 - 1, var9))
636            {
637                --var8;
638            }
639    
640            int var10 = this.worldObj.getBlockId(var7, var8, var9);
641    
642            if (BlockRail.isRailBlock(var10))
643            {
644                int var11 = ((BlockRail)Block.blocksList[var10]).getBasicRailMetadata(worldObj, this, var7, var8, var9);
645                par3 = (double)var8;
646    
647                if (var11 >= 2 && var11 <= 5)
648                {
649                    par3 = (double)(var8 + 1);
650                }
651    
652                int[][] var12 = field_70500_g[var11];
653                double var13 = 0.0D;
654                double var15 = (double)var7 + 0.5D + (double)var12[0][0] * 0.5D;
655                double var17 = (double)var8 + 0.5D + (double)var12[0][1] * 0.5D;
656                double var19 = (double)var9 + 0.5D + (double)var12[0][2] * 0.5D;
657                double var21 = (double)var7 + 0.5D + (double)var12[1][0] * 0.5D;
658                double var23 = (double)var8 + 0.5D + (double)var12[1][1] * 0.5D;
659                double var25 = (double)var9 + 0.5D + (double)var12[1][2] * 0.5D;
660                double var27 = var21 - var15;
661                double var29 = (var23 - var17) * 2.0D;
662                double var31 = var25 - var19;
663    
664                if (var27 == 0.0D)
665                {
666                    par1 = (double)var7 + 0.5D;
667                    var13 = par5 - (double)var9;
668                }
669                else if (var31 == 0.0D)
670                {
671                    par5 = (double)var9 + 0.5D;
672                    var13 = par1 - (double)var7;
673                }
674                else
675                {
676                    double var33 = par1 - var15;
677                    double var35 = par5 - var19;
678                    var13 = (var33 * var27 + var35 * var31) * 2.0D;
679                }
680    
681                par1 = var15 + var27 * var13;
682                par3 = var17 + var29 * var13;
683                par5 = var19 + var31 * var13;
684    
685                if (var29 < 0.0D)
686                {
687                    ++par3;
688                }
689    
690                if (var29 > 0.0D)
691                {
692                    par3 += 0.5D;
693                }
694    
695                return Vec3.getVec3Pool().getVecFromPool(par1, par3, par5);
696            }
697            else
698            {
699                return null;
700            }
701        }
702    
703        /**
704         * (abstract) Protected helper method to write subclass entity data to NBT.
705         */
706        protected void writeEntityToNBT(NBTTagCompound par1NBTTagCompound)
707        {
708            par1NBTTagCompound.setInteger("Type", this.minecartType);
709    
710            if (isPoweredCart())
711            {
712                par1NBTTagCompound.setDouble("PushX", this.pushX);
713                par1NBTTagCompound.setDouble("PushZ", this.pushZ);
714                par1NBTTagCompound.setInteger("Fuel", this.fuel);
715            }
716    
717            if (getSizeInventory() > 0)
718            {
719                NBTTagList var2 = new NBTTagList();
720    
721                for (int var3 = 0; var3 < this.cargoItems.length; ++var3)
722                {
723                    if (this.cargoItems[var3] != null)
724                    {
725                        NBTTagCompound var4 = new NBTTagCompound();
726                        var4.setByte("Slot", (byte)var3);
727                        this.cargoItems[var3].writeToNBT(var4);
728                        var2.appendTag(var4);
729                    }
730                }
731    
732                par1NBTTagCompound.setTag("Items", var2);
733            }
734        }
735    
736        /**
737         * (abstract) Protected helper method to read subclass entity data from NBT.
738         */
739        protected void readEntityFromNBT(NBTTagCompound par1NBTTagCompound)
740        {
741            this.minecartType = par1NBTTagCompound.getInteger("Type");
742    
743            if (isPoweredCart())
744            {
745                this.pushX = par1NBTTagCompound.getDouble("PushX");
746                this.pushZ = par1NBTTagCompound.getDouble("PushZ");
747                try
748                {
749                    this.fuel = par1NBTTagCompound.getInteger("Fuel");
750                }
751                catch (ClassCastException e)
752                {
753                    this.fuel = par1NBTTagCompound.getShort("Fuel");
754                }
755            }
756    
757            if (getSizeInventory() > 0)
758            {
759                NBTTagList var2 = par1NBTTagCompound.getTagList("Items");
760                this.cargoItems = new ItemStack[this.getSizeInventory()];
761    
762                for (int var3 = 0; var3 < var2.tagCount(); ++var3)
763                {
764                    NBTTagCompound var4 = (NBTTagCompound)var2.tagAt(var3);
765                    int var5 = var4.getByte("Slot") & 255;
766    
767                    if (var5 >= 0 && var5 < this.cargoItems.length)
768                    {
769                        this.cargoItems[var5] = ItemStack.loadItemStackFromNBT(var4);
770                    }
771                }
772            }
773        }
774    
775        @SideOnly(Side.CLIENT)
776        public float getShadowSize()
777        {
778            return 0.0F;
779        }
780    
781        /**
782         * Applies a velocity to each of the entities pushing them away from each other. Args: entity
783         */
784        public void applyEntityCollision(Entity par1Entity)
785        {
786            MinecraftForge.EVENT_BUS.post(new MinecartCollisionEvent(this, par1Entity));
787            if (getCollisionHandler() != null)
788            {
789                getCollisionHandler().onEntityCollision(this, par1Entity);
790                return;
791            }
792            if (!this.worldObj.isRemote)
793            {
794                if (par1Entity != this.riddenByEntity)
795                {
796                    if (par1Entity instanceof EntityLiving && !(par1Entity instanceof EntityPlayer) && !(par1Entity instanceof EntityIronGolem) && canBeRidden() && this.motionX * this.motionX + this.motionZ * this.motionZ > 0.01D && this.riddenByEntity == null && par1Entity.ridingEntity == null)
797                    {
798                        par1Entity.mountEntity(this);
799                    }
800    
801                    double var2 = par1Entity.posX - this.posX;
802                    double var4 = par1Entity.posZ - this.posZ;
803                    double var6 = var2 * var2 + var4 * var4;
804    
805                    if (var6 >= 9.999999747378752E-5D)
806                    {
807                        var6 = (double)MathHelper.sqrt_double(var6);
808                        var2 /= var6;
809                        var4 /= var6;
810                        double var8 = 1.0D / var6;
811    
812                        if (var8 > 1.0D)
813                        {
814                            var8 = 1.0D;
815                        }
816    
817                        var2 *= var8;
818                        var4 *= var8;
819                        var2 *= 0.10000000149011612D;
820                        var4 *= 0.10000000149011612D;
821                        var2 *= (double)(1.0F - this.entityCollisionReduction);
822                        var4 *= (double)(1.0F - this.entityCollisionReduction);
823                        var2 *= 0.5D;
824                        var4 *= 0.5D;
825    
826                        if (par1Entity instanceof EntityMinecart)
827                        {
828                            double var10 = par1Entity.posX - this.posX;
829                            double var12 = par1Entity.posZ - this.posZ;
830                            Vec3 var14 = Vec3.getVec3Pool().getVecFromPool(var10, 0.0D, var12).normalize();
831                            Vec3 var15 = Vec3.getVec3Pool().getVecFromPool((double)MathHelper.cos(this.rotationYaw * (float)Math.PI / 180.0F), 0.0D, (double)MathHelper.sin(this.rotationYaw * (float)Math.PI / 180.0F)).normalize();
832                            double var16 = Math.abs(var14.dotProduct(var15));
833    
834                            if (var16 < 0.800000011920929D)
835                            {
836                                return;
837                            }
838    
839                            double var18 = par1Entity.motionX + this.motionX;
840                            double var20 = par1Entity.motionZ + this.motionZ;
841    
842                            if (((EntityMinecart)par1Entity).isPoweredCart() && !isPoweredCart())
843                            {
844                                this.motionX *= 0.20000000298023224D;
845                                this.motionZ *= 0.20000000298023224D;
846                                this.addVelocity(par1Entity.motionX - var2, 0.0D, par1Entity.motionZ - var4);
847                                par1Entity.motionX *= 0.949999988079071D;
848                                par1Entity.motionZ *= 0.949999988079071D;
849                            }
850                            else if (!((EntityMinecart)par1Entity).isPoweredCart() && isPoweredCart())
851                            {
852                                par1Entity.motionX *= 0.20000000298023224D;
853                                par1Entity.motionZ *= 0.20000000298023224D;
854                                par1Entity.addVelocity(this.motionX + var2, 0.0D, this.motionZ + var4);
855                                this.motionX *= 0.949999988079071D;
856                                this.motionZ *= 0.949999988079071D;
857                            }
858                            else
859                            {
860                                var18 /= 2.0D;
861                                var20 /= 2.0D;
862                                this.motionX *= 0.20000000298023224D;
863                                this.motionZ *= 0.20000000298023224D;
864                                this.addVelocity(var18 - var2, 0.0D, var20 - var4);
865                                par1Entity.motionX *= 0.20000000298023224D;
866                                par1Entity.motionZ *= 0.20000000298023224D;
867                                par1Entity.addVelocity(var18 + var2, 0.0D, var20 + var4);
868                            }
869                        }
870                        else
871                        {
872                            this.addVelocity(-var2, 0.0D, -var4);
873                            par1Entity.addVelocity(var2 / 4.0D, 0.0D, var4 / 4.0D);
874                        }
875                    }
876                }
877            }
878        }
879    
880        /**
881         * Returns the number of slots in the inventory.
882         */
883        public int getSizeInventory()
884        {
885            return (minecartType == 1 && getClass() == EntityMinecart.class ? 27 : 0);
886        }
887    
888        /**
889         * Returns the stack in slot i
890         */
891        public ItemStack getStackInSlot(int par1)
892        {
893            return this.cargoItems[par1];
894        }
895    
896        /**
897         * Removes from an inventory slot (first arg) up to a specified number (second arg) of items and returns them in a
898         * new stack.
899         */
900        public ItemStack decrStackSize(int par1, int par2)
901        {
902            if (this.cargoItems[par1] != null)
903            {
904                ItemStack var3;
905    
906                if (this.cargoItems[par1].stackSize <= par2)
907                {
908                    var3 = this.cargoItems[par1];
909                    this.cargoItems[par1] = null;
910                    return var3;
911                }
912                else
913                {
914                    var3 = this.cargoItems[par1].splitStack(par2);
915    
916                    if (this.cargoItems[par1].stackSize == 0)
917                    {
918                        this.cargoItems[par1] = null;
919                    }
920    
921                    return var3;
922                }
923            }
924            else
925            {
926                return null;
927            }
928        }
929    
930        /**
931         * When some containers are closed they call this on each slot, then drop whatever it returns as an EntityItem -
932         * like when you close a workbench GUI.
933         */
934        public ItemStack getStackInSlotOnClosing(int par1)
935        {
936            if (this.cargoItems[par1] != null)
937            {
938                ItemStack var2 = this.cargoItems[par1];
939                this.cargoItems[par1] = null;
940                return var2;
941            }
942            else
943            {
944                return null;
945            }
946        }
947    
948        /**
949         * Sets the given item stack to the specified slot in the inventory (can be crafting or armor sections).
950         */
951        public void setInventorySlotContents(int par1, ItemStack par2ItemStack)
952        {
953            this.cargoItems[par1] = par2ItemStack;
954    
955            if (par2ItemStack != null && par2ItemStack.stackSize > this.getInventoryStackLimit())
956            {
957                par2ItemStack.stackSize = this.getInventoryStackLimit();
958            }
959        }
960    
961        /**
962         * Returns the name of the inventory.
963         */
964        public String getInvName()
965        {
966            return "container.minecart";
967        }
968    
969        /**
970         * Returns the maximum stack size for a inventory slot. Seems to always be 64, possibly will be extended. *Isn't
971         * this more of a set than a get?*
972         */
973        public int getInventoryStackLimit()
974        {
975            return 64;
976        }
977    
978        /**
979         * Called when an the contents of an Inventory change, usually
980         */
981        public void onInventoryChanged() {}
982    
983        /**
984         * Called when a player interacts with a mob. e.g. gets milk from a cow, gets into the saddle on a pig.
985         */
986        public boolean interact(EntityPlayer par1EntityPlayer)
987        {
988            if (MinecraftForge.EVENT_BUS.post(new MinecartInteractEvent(this, par1EntityPlayer)))
989            {
990                return true;
991            }
992    
993            if (canBeRidden())
994            {
995                if (this.riddenByEntity != null && this.riddenByEntity instanceof EntityPlayer && this.riddenByEntity != par1EntityPlayer)
996                {
997                    return true;
998                }
999    
1000                if (!this.worldObj.isRemote)
1001                {
1002                    par1EntityPlayer.mountEntity(this);
1003                }
1004            }
1005            else if (getSizeInventory() > 0)
1006            {
1007                if (!this.worldObj.isRemote)
1008                {
1009                    par1EntityPlayer.displayGUIChest(this);
1010                }
1011            }
1012            else if (this.minecartType == 2 && getClass() == EntityMinecart.class)
1013            {
1014                ItemStack var2 = par1EntityPlayer.inventory.getCurrentItem();
1015    
1016                if (var2 != null && var2.itemID == Item.coal.shiftedIndex)
1017                {
1018                    if (--var2.stackSize == 0)
1019                    {
1020                        par1EntityPlayer.inventory.setInventorySlotContents(par1EntityPlayer.inventory.currentItem, (ItemStack)null);
1021                    }
1022    
1023                    this.fuel += 3600;
1024                }
1025    
1026                this.pushX = this.posX - par1EntityPlayer.posX;
1027                this.pushZ = this.posZ - par1EntityPlayer.posZ;
1028            }
1029    
1030            return true;
1031        }
1032    
1033        @SideOnly(Side.CLIENT)
1034    
1035        /**
1036         * Sets the position and rotation. Only difference from the other one is no bounding on the rotation. Args: posX,
1037         * posY, posZ, yaw, pitch
1038         */
1039        public void setPositionAndRotation2(double par1, double par3, double par5, float par7, float par8, int par9)
1040        {
1041            this.minecartX = par1;
1042            this.minecartY = par3;
1043            this.minecartZ = par5;
1044            this.minecartYaw = (double)par7;
1045            this.minecartPitch = (double)par8;
1046            this.turnProgress = par9 + 2;
1047            this.motionX = this.velocityX;
1048            this.motionY = this.velocityY;
1049            this.motionZ = this.velocityZ;
1050        }
1051    
1052        /**
1053         * Do not make give this method the name canInteractWith because it clashes with Container
1054         */
1055        public boolean isUseableByPlayer(EntityPlayer par1EntityPlayer)
1056        {
1057            return this.isDead ? false : par1EntityPlayer.getDistanceSqToEntity(this) <= 64.0D;
1058        }
1059    
1060        @SideOnly(Side.CLIENT)
1061    
1062        /**
1063         * Sets the velocity to the args. Args: x, y, z
1064         */
1065        public void setVelocity(double par1, double par3, double par5)
1066        {
1067            this.velocityX = this.motionX = par1;
1068            this.velocityY = this.motionY = par3;
1069            this.velocityZ = this.motionZ = par5;
1070        }
1071    
1072        /**
1073         * Is this minecart powered (Fuel > 0)
1074         */
1075        protected boolean isMinecartPowered()
1076        {
1077            return (this.dataWatcher.getWatchableObjectByte(16) & 1) != 0;
1078        }
1079    
1080        /**
1081         * Set if this minecart is powered (Fuel > 0)
1082         */
1083        protected void setMinecartPowered(boolean par1)
1084        {
1085            if (par1)
1086            {
1087                this.dataWatcher.updateObject(16, Byte.valueOf((byte)(this.dataWatcher.getWatchableObjectByte(16) | 1)));
1088            }
1089            else
1090            {
1091                this.dataWatcher.updateObject(16, Byte.valueOf((byte)(this.dataWatcher.getWatchableObjectByte(16) & -2)));
1092            }
1093        }
1094    
1095        public void openChest() {}
1096    
1097        public void closeChest() {}
1098    
1099        /**
1100         * Sets the current amount of damage the minecart has taken. Decreases over time. The cart breaks when this is over
1101         * 40.
1102         */
1103        public void setDamage(int par1)
1104        {
1105            this.dataWatcher.updateObject(19, Integer.valueOf(par1));
1106        }
1107    
1108        /**
1109         * Gets the current amount of damage the minecart has taken. Decreases over time. The cart breaks when this is over
1110         * 40.
1111         */
1112        public int getDamage()
1113        {
1114            return this.dataWatcher.getWatchableObjectInt(19);
1115        }
1116    
1117        public void func_70497_h(int par1)
1118        {
1119            this.dataWatcher.updateObject(17, Integer.valueOf(par1));
1120        }
1121    
1122        public int func_70496_j()
1123        {
1124            return this.dataWatcher.getWatchableObjectInt(17);
1125        }
1126    
1127        public void func_70494_i(int par1)
1128        {
1129            this.dataWatcher.updateObject(18, Integer.valueOf(par1));
1130        }
1131    
1132        public int func_70493_k()
1133        {
1134            return this.dataWatcher.getWatchableObjectInt(18);
1135        }
1136    
1137        /**
1138         * Drops the cart as a item. The exact item dropped is defined by getItemDropped().
1139         */
1140        public void dropCartAsItem()
1141        {
1142            for(ItemStack item : getItemsDropped())
1143            {
1144                entityDropItem(item, 0);
1145            }
1146        }
1147    
1148        /**
1149         * Override this to define which items your cart drops when broken.
1150         * This does not include items contained in the inventory,
1151         * that is handled elsewhere.
1152         * @return A list of items dropped.
1153         */
1154        public List<ItemStack> getItemsDropped()
1155        {
1156            List<ItemStack> items = new ArrayList<ItemStack>();
1157            items.add(new ItemStack(Item.minecartEmpty));
1158            
1159            switch(minecartType)
1160            {
1161                case 1:
1162                    items.add(new ItemStack(Block.chest));
1163                    break;
1164                case 2:
1165                    items.add(new ItemStack(Block.stoneOvenIdle));
1166                    break;
1167            }
1168            return items;
1169        }
1170    
1171        /**
1172         * This function returns an ItemStack that represents this cart.
1173         * This should be an ItemStack that can be used by the player to place the cart.
1174         * This is the item that was registered with the cart via the registerMinecart function,
1175         * but is not necessary the item the cart drops when destroyed.
1176         * @return An ItemStack that can be used to place the cart.
1177         */
1178        public ItemStack getCartItem()
1179        {
1180            return MinecartRegistry.getItemForCart(this);
1181        }
1182    
1183        /**
1184         * Returns true if this cart is self propelled.
1185         * @return True if powered.
1186         */
1187        public boolean isPoweredCart()
1188        {
1189            return minecartType == 2 && getClass() == EntityMinecart.class;
1190        }
1191    
1192        /** 
1193         * Returns true if this cart is a storage cart
1194         * Some carts may have inventories but not be storage carts
1195         * and some carts without inventories may be storage carts.
1196         * @return True if this cart should be classified as a storage cart.
1197         */
1198        public boolean isStorageCart()
1199        {
1200            return minecartType == 1 && getClass() == EntityMinecart.class;
1201        }
1202    
1203        /**
1204         * Returns true if this cart can be ridden by an Entity.
1205         * @return True if this cart can be ridden.
1206         */
1207        public boolean canBeRidden()
1208        {
1209            if(minecartType == 0 && getClass() == EntityMinecart.class)
1210            {
1211                return true;
1212            }
1213            return false;
1214        }
1215    
1216        /** 
1217         * Returns true if this cart can currently use rails.
1218         * This function is mainly used to gracefully detach a minecart from a rail.
1219         * @return True if the minecart can use rails.
1220         */
1221        public boolean canUseRail()
1222        {
1223            return canUseRail;
1224        }
1225    
1226        /**
1227         * Set whether the minecart can use rails.
1228         * This function is mainly used to gracefully detach a minecart from a rail.
1229         * @param use Whether the minecart can currently use rails.
1230         */
1231        public void setCanUseRail(boolean use)
1232        {
1233            canUseRail = use;
1234        }
1235    
1236        /** 
1237         * Return false if this cart should not call IRail.onMinecartPass() and should ignore Powered Rails.
1238         * @return True if this cart should call IRail.onMinecartPass().
1239         */
1240        public boolean shouldDoRailFunctions()
1241        {
1242            return true;
1243        }
1244    
1245        /**
1246         * Simply returns the minecartType variable.
1247         * @return minecartType
1248         */
1249        public int getMinecartType()
1250        {
1251            return minecartType;
1252        }
1253    
1254        /**
1255         * Gets the current global Minecart Collision handler if none
1256         * is registered, returns null
1257         * @return The collision handler or null
1258         */
1259        public static IMinecartCollisionHandler getCollisionHandler()
1260        {
1261            return collisionHandler;
1262        }
1263    
1264        /**
1265         * Sets the global Minecart Collision handler, overwrites any
1266         * that is currently set.
1267         * @param handler The new handler
1268         */
1269        public static void setCollisionHandler(IMinecartCollisionHandler handler)
1270        {
1271            collisionHandler = handler;
1272        }
1273    
1274        /**
1275         * Carts should return their drag factor here
1276         * @return The drag rate.
1277         */
1278        protected double getDrag()
1279        {
1280            return riddenByEntity != null ? defaultDragRidden : defaultDragEmpty;
1281        }   
1282    
1283        /**
1284         * Moved to allow overrides.
1285         * This code applies drag and updates push forces.
1286         */
1287        protected void applyDragAndPushForces()
1288        {
1289            if(isPoweredCart())
1290            {
1291                double d27 = MathHelper.sqrt_double(pushX * pushX + pushZ * pushZ);
1292                if(d27 > 0.01D)
1293                {
1294                    pushX /= d27;
1295                    pushZ /= d27;
1296                    double d29 = 0.04;
1297                    motionX *= 0.8D;
1298                    motionY *= 0.0D;
1299                    motionZ *= 0.8D;
1300                    motionX += pushX * d29;
1301                    motionZ += pushZ * d29;
1302                }
1303                else
1304                {
1305                    motionX *= 0.9D;
1306                    motionY *= 0.0D;
1307                    motionZ *= 0.9D;
1308                }
1309            }
1310            motionX *= getDrag();
1311            motionY *= 0.0D;
1312            motionZ *= getDrag();
1313        }
1314    
1315        /**
1316         * Moved to allow overrides.
1317         * This code updates push forces.
1318         */
1319        protected void updatePushForces()
1320        {
1321            if(isPoweredCart())
1322            {
1323                double push = MathHelper.sqrt_double(pushX * pushX + pushZ * pushZ);
1324                if(push > 0.01D && motionX * motionX + motionZ * motionZ > 0.001D)
1325                {
1326                    pushX /= push;
1327                    pushZ /= push;
1328                    if(pushX * motionX + pushZ * motionZ < 0.0D)
1329                    {
1330                        pushX = 0.0D;
1331                        pushZ = 0.0D;
1332                    }
1333                    else
1334                    {
1335                        pushX = motionX;
1336                        pushZ = motionZ;
1337                    }
1338                }
1339            }
1340        }
1341    
1342        /**
1343         * Moved to allow overrides.
1344         * This code handles minecart movement and speed capping when on a rail.
1345         */
1346        protected void moveMinecartOnRail(int i, int j, int k)
1347        {
1348            int id = worldObj.getBlockId(i, j, k);
1349            if (!BlockRail.isRailBlock(id))
1350            {
1351                    return;
1352            }
1353            float railMaxSpeed = ((BlockRail)Block.blocksList[id]).getRailMaxSpeed(worldObj, this, i, j, k);
1354    
1355            double maxSpeed = Math.min(railMaxSpeed, getMaxSpeedRail());
1356            double mX = motionX;
1357            double mZ = motionZ;
1358            if(riddenByEntity != null)
1359            {
1360                mX *= 0.75D;
1361                mZ *= 0.75D;
1362            }
1363            if(mX < -maxSpeed) mX = -maxSpeed;
1364            if(mX >  maxSpeed) mX =  maxSpeed;
1365            if(mZ < -maxSpeed) mZ = -maxSpeed;
1366            if(mZ >  maxSpeed) mZ =  maxSpeed;
1367            moveEntity(mX, 0.0D, mZ);
1368        }
1369    
1370        /**
1371         * Moved to allow overrides.
1372         * This code handles minecart movement and speed capping when not on a rail.
1373         */
1374        protected void moveMinecartOffRail(int i, int j, int k)
1375        {
1376            double d2 = getMaxSpeedGround();
1377            if(!onGround)
1378            {
1379                d2 = getMaxSpeedAirLateral();
1380            }
1381            if(motionX < -d2) motionX = -d2;
1382            if(motionX >  d2) motionX =  d2;
1383            if(motionZ < -d2) motionZ = -d2;
1384            if(motionZ >  d2) motionZ =  d2;
1385            double moveY = motionY;
1386            if(getMaxSpeedAirVertical() > 0 && motionY > getMaxSpeedAirVertical())
1387            {
1388                moveY = getMaxSpeedAirVertical();
1389                if(Math.abs(motionX) < 0.3f && Math.abs(motionZ) < 0.3f)
1390                {
1391                    moveY = 0.15f;
1392                    motionY = moveY;
1393                }
1394            }
1395            if(onGround)
1396            {
1397                motionX *= 0.5D;
1398                motionY *= 0.5D;
1399                motionZ *= 0.5D;
1400            }
1401            moveEntity(motionX, moveY, motionZ);
1402            if(!onGround)
1403            {
1404                motionX *= getDragAir();
1405                motionY *= getDragAir();
1406                motionZ *= getDragAir();
1407            }
1408        }
1409    
1410        /**
1411         * Moved to allow overrides.
1412         * This code applies fuel consumption.
1413         */
1414        protected void updateFuel()
1415        {
1416            if (fuel > 0) fuel--;
1417            if (fuel <= 0) pushX = pushZ = 0.0D;
1418            setMinecartPowered(fuel > 0);
1419        }
1420    
1421        /**
1422         * Moved to allow overrides, This code handle slopes affecting velocity.
1423         * @param metadata The blocks position metadata 
1424         */
1425        protected void adjustSlopeVelocities(int metadata) 
1426        {
1427            double acceleration = 0.0078125D;
1428            if (metadata == 2)
1429            {
1430                motionX -= acceleration;
1431            }
1432            else if (metadata == 3)
1433            {
1434                motionX += acceleration;
1435            }
1436            else if (metadata == 4)
1437            {
1438                motionZ += acceleration;
1439            }
1440            else if (metadata == 5)
1441            {
1442                motionZ -= acceleration;
1443            }
1444        }
1445    
1446        /**
1447         * Getters/setters for physics variables
1448         */
1449    
1450        /**
1451         * Returns the carts max speed.
1452         * Carts going faster than 1.1 cause issues with chunk loading.
1453         * Carts cant traverse slopes or corners at greater than 0.5 - 0.6.
1454         * This value is compared with the rails max speed to determine
1455         * the carts current max speed. A normal rails max speed is 0.4.
1456         * @return Carts max speed.
1457         */
1458        public float getMaxSpeedRail()
1459        {
1460            return maxSpeedRail;
1461        }
1462    
1463        public void setMaxSpeedRail(float value)
1464        {
1465            maxSpeedRail = value;
1466        }
1467    
1468        public float getMaxSpeedGround()
1469        {
1470            return maxSpeedGround;
1471        }
1472    
1473        public void setMaxSpeedGround(float value)
1474        {
1475            maxSpeedGround = value;
1476        }
1477    
1478        public float getMaxSpeedAirLateral()
1479        {
1480            return maxSpeedAirLateral;
1481        }
1482    
1483        public void setMaxSpeedAirLateral(float value)
1484        {
1485            maxSpeedAirLateral = value;
1486        }
1487    
1488        public float getMaxSpeedAirVertical()
1489        {
1490            return maxSpeedAirVertical;
1491        }
1492    
1493        public void setMaxSpeedAirVertical(float value)
1494        {
1495            maxSpeedAirVertical = value;
1496        }
1497    
1498        public double getDragAir()
1499        {
1500            return dragAir;
1501        }
1502    
1503        public void setDragAir(double value)
1504        {
1505            dragAir = value;
1506        }
1507    }