001    package net.minecraft.src;
002    
003    import cpw.mods.fml.common.Side;
004    import cpw.mods.fml.common.asm.SideOnly;
005    import java.util.Random;
006    import net.minecraftforge.common.ForgeDirection;
007    import static net.minecraftforge.common.ForgeDirection.*;
008    
009    public class BlockTorch extends Block
010    {
011        protected BlockTorch(int par1, int par2)
012        {
013            super(par1, par2, Material.circuits);
014            this.setTickRandomly(true);
015            this.setCreativeTab(CreativeTabs.tabDecorations);
016        }
017    
018        /**
019         * Returns a bounding box from the pool of bounding boxes (this means this box can change after the pool has been
020         * cleared to be reused)
021         */
022        public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
023        {
024            return null;
025        }
026    
027        /**
028         * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
029         * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
030         */
031        public boolean isOpaqueCube()
032        {
033            return false;
034        }
035    
036        /**
037         * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
038         */
039        public boolean renderAsNormalBlock()
040        {
041            return false;
042        }
043    
044        /**
045         * The type of render function that is called for this block
046         */
047        public int getRenderType()
048        {
049            return 2;
050        }
051    
052        /**
053         * Gets if we can place a torch on a block.
054         */
055        private boolean canPlaceTorchOn(World par1World, int par2, int par3, int par4)
056        {
057            if (par1World.doesBlockHaveSolidTopSurface(par2, par3, par4))
058            {
059                return true;
060            }
061            else
062            {
063                int var5 = par1World.getBlockId(par2, par3, par4);
064                return (Block.blocksList[var5] != null && Block.blocksList[var5].canPlaceTorchOnTop(par1World, par2, par3, par4));
065            }
066        }
067    
068        /**
069         * Checks to see if its valid to put this block at the specified coordinates. Args: world, x, y, z
070         */
071        public boolean canPlaceBlockAt(World par1World, int par2, int par3, int par4)
072        {
073            return par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST,  true) ||
074                   par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST,  true) ||
075                   par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH, true) ||
076                   par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH, true) ||
077                   canPlaceTorchOn(par1World, par2, par3 - 1, par4);
078        }
079    
080        public int func_85104_a(World par1World, int par2, int par3, int par4, int par5, float par6, float par7, float par8, int par9)
081        {
082            int var10 = par9;
083    
084            if (par5 == 1 && this.canPlaceTorchOn(par1World, par2, par3 - 1, par4))
085            {
086                var10 = 5;
087            }
088    
089            if (par5 == 2 && par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH, true))
090            {
091                var10 = 4;
092            }
093    
094            if (par5 == 3 && par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH, true))
095            {
096                var10 = 3;
097            }
098    
099            if (par5 == 4 && par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST, true))
100            {
101                var10 = 2;
102            }
103    
104            if (par5 == 5 && par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST, true))
105            {
106                var10 = 1;
107            }
108    
109            return var10;
110        }
111    
112        /**
113         * Ticks the block if it's been scheduled
114         */
115        public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
116        {
117            super.updateTick(par1World, par2, par3, par4, par5Random);
118    
119            if (par1World.getBlockMetadata(par2, par3, par4) == 0)
120            {
121                this.onBlockAdded(par1World, par2, par3, par4);
122            }
123        }
124    
125        /**
126         * Called whenever the block is added into the world. Args: world, x, y, z
127         */
128        public void onBlockAdded(World par1World, int par2, int par3, int par4)
129        {
130            if (par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST, true))
131            {
132                par1World.setBlockMetadataWithNotify(par2, par3, par4, 1);
133            }
134            else if (par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST, true))
135            {
136                par1World.setBlockMetadataWithNotify(par2, par3, par4, 2);
137            }
138            else if (par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH, true))
139            {
140                par1World.setBlockMetadataWithNotify(par2, par3, par4, 3);
141            }
142            else if (par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH, true))
143            {
144                par1World.setBlockMetadataWithNotify(par2, par3, par4, 4);
145            }
146            else if (this.canPlaceTorchOn(par1World, par2, par3 - 1, par4))
147            {
148                par1World.setBlockMetadataWithNotify(par2, par3, par4, 5);
149            }
150    
151            this.dropTorchIfCantStay(par1World, par2, par3, par4);
152        }
153    
154        /**
155         * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
156         * their own) Args: x, y, z, neighbor blockID
157         */
158        public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
159        {
160            if (this.dropTorchIfCantStay(par1World, par2, par3, par4))
161            {
162                int var6 = par1World.getBlockMetadata(par2, par3, par4);
163                boolean var7 = false;
164    
165                if (!par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST, true) && var6 == 1)
166                {
167                    var7 = true;
168                }
169    
170                if (!par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST, true) && var6 == 2)
171                {
172                    var7 = true;
173                }
174    
175                if (!par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH, true) && var6 == 3)
176                {
177                    var7 = true;
178                }
179    
180                if (!par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH, true) && var6 == 4)
181                {
182                    var7 = true;
183                }
184    
185                if (!this.canPlaceTorchOn(par1World, par2, par3 - 1, par4) && var6 == 5)
186                {
187                    var7 = true;
188                }
189    
190                if (var7)
191                {
192                    this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
193                    par1World.setBlockWithNotify(par2, par3, par4, 0);
194                }
195            }
196        }
197    
198        /**
199         * Tests if the block can remain at its current location and will drop as an item if it is unable to stay. Returns
200         * True if it can stay and False if it drops. Args: world, x, y, z
201         */
202        private boolean dropTorchIfCantStay(World par1World, int par2, int par3, int par4)
203        {
204            if (!this.canPlaceBlockAt(par1World, par2, par3, par4))
205            {
206                if (par1World.getBlockId(par2, par3, par4) == this.blockID)
207                {
208                    this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
209                    par1World.setBlockWithNotify(par2, par3, par4, 0);
210                }
211    
212                return false;
213            }
214            else
215            {
216                return true;
217            }
218        }
219    
220        /**
221         * Ray traces through the blocks collision from start vector to end vector returning a ray trace hit. Args: world,
222         * x, y, z, startVec, endVec
223         */
224        public MovingObjectPosition collisionRayTrace(World par1World, int par2, int par3, int par4, Vec3 par5Vec3, Vec3 par6Vec3)
225        {
226            int var7 = par1World.getBlockMetadata(par2, par3, par4) & 7;
227            float var8 = 0.15F;
228    
229            if (var7 == 1)
230            {
231                this.setBlockBounds(0.0F, 0.2F, 0.5F - var8, var8 * 2.0F, 0.8F, 0.5F + var8);
232            }
233            else if (var7 == 2)
234            {
235                this.setBlockBounds(1.0F - var8 * 2.0F, 0.2F, 0.5F - var8, 1.0F, 0.8F, 0.5F + var8);
236            }
237            else if (var7 == 3)
238            {
239                this.setBlockBounds(0.5F - var8, 0.2F, 0.0F, 0.5F + var8, 0.8F, var8 * 2.0F);
240            }
241            else if (var7 == 4)
242            {
243                this.setBlockBounds(0.5F - var8, 0.2F, 1.0F - var8 * 2.0F, 0.5F + var8, 0.8F, 1.0F);
244            }
245            else
246            {
247                var8 = 0.1F;
248                this.setBlockBounds(0.5F - var8, 0.0F, 0.5F - var8, 0.5F + var8, 0.6F, 0.5F + var8);
249            }
250    
251            return super.collisionRayTrace(par1World, par2, par3, par4, par5Vec3, par6Vec3);
252        }
253    
254        @SideOnly(Side.CLIENT)
255    
256        /**
257         * A randomly called display update to be able to add particles or other items for display
258         */
259        public void randomDisplayTick(World par1World, int par2, int par3, int par4, Random par5Random)
260        {
261            int var6 = par1World.getBlockMetadata(par2, par3, par4);
262            double var7 = (double)((float)par2 + 0.5F);
263            double var9 = (double)((float)par3 + 0.7F);
264            double var11 = (double)((float)par4 + 0.5F);
265            double var13 = 0.2199999988079071D;
266            double var15 = 0.27000001072883606D;
267    
268            if (var6 == 1)
269            {
270                par1World.spawnParticle("smoke", var7 - var15, var9 + var13, var11, 0.0D, 0.0D, 0.0D);
271                par1World.spawnParticle("flame", var7 - var15, var9 + var13, var11, 0.0D, 0.0D, 0.0D);
272            }
273            else if (var6 == 2)
274            {
275                par1World.spawnParticle("smoke", var7 + var15, var9 + var13, var11, 0.0D, 0.0D, 0.0D);
276                par1World.spawnParticle("flame", var7 + var15, var9 + var13, var11, 0.0D, 0.0D, 0.0D);
277            }
278            else if (var6 == 3)
279            {
280                par1World.spawnParticle("smoke", var7, var9 + var13, var11 - var15, 0.0D, 0.0D, 0.0D);
281                par1World.spawnParticle("flame", var7, var9 + var13, var11 - var15, 0.0D, 0.0D, 0.0D);
282            }
283            else if (var6 == 4)
284            {
285                par1World.spawnParticle("smoke", var7, var9 + var13, var11 + var15, 0.0D, 0.0D, 0.0D);
286                par1World.spawnParticle("flame", var7, var9 + var13, var11 + var15, 0.0D, 0.0D, 0.0D);
287            }
288            else
289            {
290                par1World.spawnParticle("smoke", var7, var9, var11, 0.0D, 0.0D, 0.0D);
291                par1World.spawnParticle("flame", var7, var9, var11, 0.0D, 0.0D, 0.0D);
292            }
293        }
294    }