001    package net.minecraft.block;
002    
003    import cpw.mods.fml.relauncher.Side;
004    import cpw.mods.fml.relauncher.SideOnly;
005    import java.util.Random;
006    import net.minecraft.block.material.Material;
007    import net.minecraft.creativetab.CreativeTabs;
008    import net.minecraft.util.AxisAlignedBB;
009    import net.minecraft.util.MovingObjectPosition;
010    import net.minecraft.util.Vec3;
011    import net.minecraft.world.World;
012    
013    import net.minecraftforge.common.ForgeDirection;
014    import static net.minecraftforge.common.ForgeDirection.*;
015    
016    public class BlockTorch extends Block
017    {
018        protected BlockTorch(int par1, int par2)
019        {
020            super(par1, par2, Material.circuits);
021            this.setTickRandomly(true);
022            this.setCreativeTab(CreativeTabs.tabDecorations);
023        }
024    
025        /**
026         * Returns a bounding box from the pool of bounding boxes (this means this box can change after the pool has been
027         * cleared to be reused)
028         */
029        public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
030        {
031            return null;
032        }
033    
034        /**
035         * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
036         * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
037         */
038        public boolean isOpaqueCube()
039        {
040            return false;
041        }
042    
043        /**
044         * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
045         */
046        public boolean renderAsNormalBlock()
047        {
048            return false;
049        }
050    
051        /**
052         * The type of render function that is called for this block
053         */
054        public int getRenderType()
055        {
056            return 2;
057        }
058    
059        /**
060         * Gets if we can place a torch on a block.
061         */
062        private boolean canPlaceTorchOn(World par1World, int par2, int par3, int par4)
063        {
064            if (par1World.doesBlockHaveSolidTopSurface(par2, par3, par4))
065            {
066                return true;
067            }
068            else
069            {
070                int var5 = par1World.getBlockId(par2, par3, par4);
071                return (Block.blocksList[var5] != null && Block.blocksList[var5].canPlaceTorchOnTop(par1World, par2, par3, par4));
072            }
073        }
074    
075        /**
076         * Checks to see if its valid to put this block at the specified coordinates. Args: world, x, y, z
077         */
078        public boolean canPlaceBlockAt(World par1World, int par2, int par3, int par4)
079        {
080            return par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST,  true) ||
081                   par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST,  true) ||
082                   par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH, true) ||
083                   par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH, true) ||
084                   canPlaceTorchOn(par1World, par2, par3 - 1, par4);
085        }
086    
087        public int func_85104_a(World par1World, int par2, int par3, int par4, int par5, float par6, float par7, float par8, int par9)
088        {
089            int var10 = par9;
090    
091            if (par5 == 1 && this.canPlaceTorchOn(par1World, par2, par3 - 1, par4))
092            {
093                var10 = 5;
094            }
095    
096            if (par5 == 2 && par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH, true))
097            {
098                var10 = 4;
099            }
100    
101            if (par5 == 3 && par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH, true))
102            {
103                var10 = 3;
104            }
105    
106            if (par5 == 4 && par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST, true))
107            {
108                var10 = 2;
109            }
110    
111            if (par5 == 5 && par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST, true))
112            {
113                var10 = 1;
114            }
115    
116            return var10;
117        }
118    
119        /**
120         * Ticks the block if it's been scheduled
121         */
122        public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
123        {
124            super.updateTick(par1World, par2, par3, par4, par5Random);
125    
126            if (par1World.getBlockMetadata(par2, par3, par4) == 0)
127            {
128                this.onBlockAdded(par1World, par2, par3, par4);
129            }
130        }
131    
132        /**
133         * Called whenever the block is added into the world. Args: world, x, y, z
134         */
135        public void onBlockAdded(World par1World, int par2, int par3, int par4)
136        {
137            if (par1World.getBlockMetadata(par2, par3, par4) == 0)
138            {
139                if (par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST, true))
140                {
141                    par1World.setBlockMetadataWithNotify(par2, par3, par4, 1);
142                }
143                else if (par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST, true))
144                {
145                    par1World.setBlockMetadataWithNotify(par2, par3, par4, 2);
146                }
147                else if (par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH, true))
148                {
149                    par1World.setBlockMetadataWithNotify(par2, par3, par4, 3);
150                }
151                else if (par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH, true))
152                {
153                    par1World.setBlockMetadataWithNotify(par2, par3, par4, 4);
154                }
155                else if (this.canPlaceTorchOn(par1World, par2, par3 - 1, par4))
156                {
157                    par1World.setBlockMetadataWithNotify(par2, par3, par4, 5);
158                }
159            }
160    
161            this.dropTorchIfCantStay(par1World, par2, par3, par4);
162        }
163    
164        /**
165         * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
166         * their own) Args: x, y, z, neighbor blockID
167         */
168        public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
169        {
170            if (this.dropTorchIfCantStay(par1World, par2, par3, par4))
171            {
172                int var6 = par1World.getBlockMetadata(par2, par3, par4);
173                boolean var7 = false;
174    
175                if (!par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST, true) && var6 == 1)
176                {
177                    var7 = true;
178                }
179    
180                if (!par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST, true) && var6 == 2)
181                {
182                    var7 = true;
183                }
184    
185                if (!par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH, true) && var6 == 3)
186                {
187                    var7 = true;
188                }
189    
190                if (!par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH, true) && var6 == 4)
191                {
192                    var7 = true;
193                }
194    
195                if (!this.canPlaceTorchOn(par1World, par2, par3 - 1, par4) && var6 == 5)
196                {
197                    var7 = true;
198                }
199    
200                if (var7)
201                {
202                    this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
203                    par1World.setBlockWithNotify(par2, par3, par4, 0);
204                }
205            }
206        }
207    
208        /**
209         * Tests if the block can remain at its current location and will drop as an item if it is unable to stay. Returns
210         * True if it can stay and False if it drops. Args: world, x, y, z
211         */
212        private boolean dropTorchIfCantStay(World par1World, int par2, int par3, int par4)
213        {
214            if (!this.canPlaceBlockAt(par1World, par2, par3, par4))
215            {
216                if (par1World.getBlockId(par2, par3, par4) == this.blockID)
217                {
218                    this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
219                    par1World.setBlockWithNotify(par2, par3, par4, 0);
220                }
221    
222                return false;
223            }
224            else
225            {
226                return true;
227            }
228        }
229    
230        /**
231         * Ray traces through the blocks collision from start vector to end vector returning a ray trace hit. Args: world,
232         * x, y, z, startVec, endVec
233         */
234        public MovingObjectPosition collisionRayTrace(World par1World, int par2, int par3, int par4, Vec3 par5Vec3, Vec3 par6Vec3)
235        {
236            int var7 = par1World.getBlockMetadata(par2, par3, par4) & 7;
237            float var8 = 0.15F;
238    
239            if (var7 == 1)
240            {
241                this.setBlockBounds(0.0F, 0.2F, 0.5F - var8, var8 * 2.0F, 0.8F, 0.5F + var8);
242            }
243            else if (var7 == 2)
244            {
245                this.setBlockBounds(1.0F - var8 * 2.0F, 0.2F, 0.5F - var8, 1.0F, 0.8F, 0.5F + var8);
246            }
247            else if (var7 == 3)
248            {
249                this.setBlockBounds(0.5F - var8, 0.2F, 0.0F, 0.5F + var8, 0.8F, var8 * 2.0F);
250            }
251            else if (var7 == 4)
252            {
253                this.setBlockBounds(0.5F - var8, 0.2F, 1.0F - var8 * 2.0F, 0.5F + var8, 0.8F, 1.0F);
254            }
255            else
256            {
257                var8 = 0.1F;
258                this.setBlockBounds(0.5F - var8, 0.0F, 0.5F - var8, 0.5F + var8, 0.6F, 0.5F + var8);
259            }
260    
261            return super.collisionRayTrace(par1World, par2, par3, par4, par5Vec3, par6Vec3);
262        }
263    
264        @SideOnly(Side.CLIENT)
265    
266        /**
267         * A randomly called display update to be able to add particles or other items for display
268         */
269        public void randomDisplayTick(World par1World, int par2, int par3, int par4, Random par5Random)
270        {
271            int var6 = par1World.getBlockMetadata(par2, par3, par4);
272            double var7 = (double)((float)par2 + 0.5F);
273            double var9 = (double)((float)par3 + 0.7F);
274            double var11 = (double)((float)par4 + 0.5F);
275            double var13 = 0.2199999988079071D;
276            double var15 = 0.27000001072883606D;
277    
278            if (var6 == 1)
279            {
280                par1World.spawnParticle("smoke", var7 - var15, var9 + var13, var11, 0.0D, 0.0D, 0.0D);
281                par1World.spawnParticle("flame", var7 - var15, var9 + var13, var11, 0.0D, 0.0D, 0.0D);
282            }
283            else if (var6 == 2)
284            {
285                par1World.spawnParticle("smoke", var7 + var15, var9 + var13, var11, 0.0D, 0.0D, 0.0D);
286                par1World.spawnParticle("flame", var7 + var15, var9 + var13, var11, 0.0D, 0.0D, 0.0D);
287            }
288            else if (var6 == 3)
289            {
290                par1World.spawnParticle("smoke", var7, var9 + var13, var11 - var15, 0.0D, 0.0D, 0.0D);
291                par1World.spawnParticle("flame", var7, var9 + var13, var11 - var15, 0.0D, 0.0D, 0.0D);
292            }
293            else if (var6 == 4)
294            {
295                par1World.spawnParticle("smoke", var7, var9 + var13, var11 + var15, 0.0D, 0.0D, 0.0D);
296                par1World.spawnParticle("flame", var7, var9 + var13, var11 + var15, 0.0D, 0.0D, 0.0D);
297            }
298            else
299            {
300                par1World.spawnParticle("smoke", var7, var9, var11, 0.0D, 0.0D, 0.0D);
301                par1World.spawnParticle("flame", var7, var9, var11, 0.0D, 0.0D, 0.0D);
302            }
303        }
304    }