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 BlockLadder extends Block
010    {
011        protected BlockLadder(int par1, int par2)
012        {
013            super(par1, par2, Material.circuits);
014            this.setCreativeTab(CreativeTabs.tabDecorations);
015        }
016    
017        /**
018         * Returns a bounding box from the pool of bounding boxes (this means this box can change after the pool has been
019         * cleared to be reused)
020         */
021        public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
022        {
023            int var5 = par1World.getBlockMetadata(par2, par3, par4);
024            float var6 = 0.125F;
025    
026            if (var5 == 2)
027            {
028                this.setBlockBounds(0.0F, 0.0F, 1.0F - var6, 1.0F, 1.0F, 1.0F);
029            }
030    
031            if (var5 == 3)
032            {
033                this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, var6);
034            }
035    
036            if (var5 == 4)
037            {
038                this.setBlockBounds(1.0F - var6, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
039            }
040    
041            if (var5 == 5)
042            {
043                this.setBlockBounds(0.0F, 0.0F, 0.0F, var6, 1.0F, 1.0F);
044            }
045    
046            return super.getCollisionBoundingBoxFromPool(par1World, par2, par3, par4);
047        }
048    
049        @SideOnly(Side.CLIENT)
050    
051        /**
052         * Returns the bounding box of the wired rectangular prism to render.
053         */
054        public AxisAlignedBB getSelectedBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
055        {
056            int var5 = par1World.getBlockMetadata(par2, par3, par4);
057            float var6 = 0.125F;
058    
059            if (var5 == 2)
060            {
061                this.setBlockBounds(0.0F, 0.0F, 1.0F - var6, 1.0F, 1.0F, 1.0F);
062            }
063    
064            if (var5 == 3)
065            {
066                this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, var6);
067            }
068    
069            if (var5 == 4)
070            {
071                this.setBlockBounds(1.0F - var6, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
072            }
073    
074            if (var5 == 5)
075            {
076                this.setBlockBounds(0.0F, 0.0F, 0.0F, var6, 1.0F, 1.0F);
077            }
078    
079            return super.getSelectedBoundingBoxFromPool(par1World, par2, par3, par4);
080        }
081    
082        /**
083         * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
084         * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
085         */
086        public boolean isOpaqueCube()
087        {
088            return false;
089        }
090    
091        /**
092         * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
093         */
094        public boolean renderAsNormalBlock()
095        {
096            return false;
097        }
098    
099        /**
100         * The type of render function that is called for this block
101         */
102        public int getRenderType()
103        {
104            return 8;
105        }
106    
107        /**
108         * Checks to see if its valid to put this block at the specified coordinates. Args: world, x, y, z
109         */
110        public boolean canPlaceBlockAt(World par1World, int par2, int par3, int par4)
111        {
112            return par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST ) ||
113                   par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST ) ||
114                   par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH) ||
115                   par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH);
116        }
117    
118        /**
119         * called before onBlockPlacedBy by ItemBlock and ItemReed
120         */
121        public void updateBlockMetadata(World par1World, int par2, int par3, int par4, int par5, float par6, float par7, float par8)
122        {
123            int var9 = par1World.getBlockMetadata(par2, par3, par4);
124    
125            if ((var9 == 0 || par5 == 2) && par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH))
126            {
127                var9 = 2;
128            }
129    
130            if ((var9 == 0 || par5 == 3) && par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH))
131            {
132                var9 = 3;
133            }
134    
135            if ((var9 == 0 || par5 == 4) && par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST))
136            {
137                var9 = 4;
138            }
139    
140            if ((var9 == 0 || par5 == 5) && par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST))
141            {
142                var9 = 5;
143            }
144    
145            par1World.setBlockMetadataWithNotify(par2, par3, par4, var9);
146        }
147    
148        /**
149         * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
150         * their own) Args: x, y, z, neighbor blockID
151         */
152        public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
153        {
154            int var6 = par1World.getBlockMetadata(par2, par3, par4);
155            boolean var7 = false;
156    
157            if (var6 == 2 && par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH))
158            {
159                var7 = true;
160            }
161    
162            if (var6 == 3 && par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH))
163            {
164                var7 = true;
165            }
166    
167            if (var6 == 4 && par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST))
168            {
169                var7 = true;
170            }
171    
172            if (var6 == 5 && par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST))
173            {
174                var7 = true;
175            }
176    
177            if (!var7)
178            {
179                this.dropBlockAsItem(par1World, par2, par3, par4, var6, 0);
180                par1World.setBlockWithNotify(par2, par3, par4, 0);
181            }
182    
183            super.onNeighborBlockChange(par1World, par2, par3, par4, par5);
184        }
185    
186        /**
187         * Returns the quantity of items to drop on block destruction.
188         */
189        public int quantityDropped(Random par1Random)
190        {
191            return 1;
192        }
193    
194        @Override
195        public boolean isLadder(World world, int x, int y, int z)
196        {
197            return true;
198        }
199    }