001 package net.minecraft.block;
002
003 import cpw.mods.fml.relauncher.Side;
004 import cpw.mods.fml.relauncher.SideOnly;
005 import java.util.List;
006 import java.util.Random;
007 import net.minecraft.block.material.Material;
008 import net.minecraft.creativetab.CreativeTabs;
009 import net.minecraft.entity.Entity;
010 import net.minecraft.item.ItemStack;
011 import net.minecraft.util.AxisAlignedBB;
012 import net.minecraft.world.IBlockAccess;
013 import net.minecraft.world.World;
014
015 public class BlockPane extends Block
016 {
017 /**
018 * Holds the texture index of the side of the pane (the thin lateral side)
019 */
020 private int sideTextureIndex;
021
022 /**
023 * If this field is true, the pane block drops itself when destroyed (like the iron fences), otherwise, it's just
024 * destroyed (like glass panes)
025 */
026 private final boolean canDropItself;
027
028 protected BlockPane(int par1, int par2, int par3, Material par4Material, boolean par5)
029 {
030 super(par1, par2, par4Material);
031 this.sideTextureIndex = par3;
032 this.canDropItself = par5;
033 this.setCreativeTab(CreativeTabs.tabDecorations);
034 }
035
036 /**
037 * Returns the ID of the items to drop on destruction.
038 */
039 public int idDropped(int par1, Random par2Random, int par3)
040 {
041 return !this.canDropItself ? 0 : super.idDropped(par1, par2Random, par3);
042 }
043
044 /**
045 * Is this block (a) opaque and (b) a full 1m cube? This determines whether or not to render the shared face of two
046 * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
047 */
048 public boolean isOpaqueCube()
049 {
050 return false;
051 }
052
053 /**
054 * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
055 */
056 public boolean renderAsNormalBlock()
057 {
058 return false;
059 }
060
061 /**
062 * The type of render function that is called for this block
063 */
064 public int getRenderType()
065 {
066 return 18;
067 }
068
069 @SideOnly(Side.CLIENT)
070
071 /**
072 * Returns true if the given side of this block type should be rendered, if the adjacent block is at the given
073 * coordinates. Args: blockAccess, x, y, z, side
074 */
075 public boolean shouldSideBeRendered(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
076 {
077 int var6 = par1IBlockAccess.getBlockId(par2, par3, par4);
078 return var6 == this.blockID ? false : super.shouldSideBeRendered(par1IBlockAccess, par2, par3, par4, par5);
079 }
080
081 /**
082 * if the specified block is in the given AABB, add its collision bounding box to the given list
083 */
084 public void addCollidingBlockToList(World par1World, int par2, int par3, int par4, AxisAlignedBB par5AxisAlignedBB, List par6List, Entity par7Entity)
085 {
086 boolean var8 = this.canThisPaneConnectToThisBlockID(par1World.getBlockId(par2, par3, par4 - 1));
087 boolean var9 = this.canThisPaneConnectToThisBlockID(par1World.getBlockId(par2, par3, par4 + 1));
088 boolean var10 = this.canThisPaneConnectToThisBlockID(par1World.getBlockId(par2 - 1, par3, par4));
089 boolean var11 = this.canThisPaneConnectToThisBlockID(par1World.getBlockId(par2 + 1, par3, par4));
090
091 if ((!var10 || !var11) && (var10 || var11 || var8 || var9))
092 {
093 if (var10 && !var11)
094 {
095 this.setBlockBounds(0.0F, 0.0F, 0.4375F, 0.5F, 1.0F, 0.5625F);
096 super.addCollidingBlockToList(par1World, par2, par3, par4, par5AxisAlignedBB, par6List, par7Entity);
097 }
098 else if (!var10 && var11)
099 {
100 this.setBlockBounds(0.5F, 0.0F, 0.4375F, 1.0F, 1.0F, 0.5625F);
101 super.addCollidingBlockToList(par1World, par2, par3, par4, par5AxisAlignedBB, par6List, par7Entity);
102 }
103 }
104 else
105 {
106 this.setBlockBounds(0.0F, 0.0F, 0.4375F, 1.0F, 1.0F, 0.5625F);
107 super.addCollidingBlockToList(par1World, par2, par3, par4, par5AxisAlignedBB, par6List, par7Entity);
108 }
109
110 if ((!var8 || !var9) && (var10 || var11 || var8 || var9))
111 {
112 if (var8 && !var9)
113 {
114 this.setBlockBounds(0.4375F, 0.0F, 0.0F, 0.5625F, 1.0F, 0.5F);
115 super.addCollidingBlockToList(par1World, par2, par3, par4, par5AxisAlignedBB, par6List, par7Entity);
116 }
117 else if (!var8 && var9)
118 {
119 this.setBlockBounds(0.4375F, 0.0F, 0.5F, 0.5625F, 1.0F, 1.0F);
120 super.addCollidingBlockToList(par1World, par2, par3, par4, par5AxisAlignedBB, par6List, par7Entity);
121 }
122 }
123 else
124 {
125 this.setBlockBounds(0.4375F, 0.0F, 0.0F, 0.5625F, 1.0F, 1.0F);
126 super.addCollidingBlockToList(par1World, par2, par3, par4, par5AxisAlignedBB, par6List, par7Entity);
127 }
128 }
129
130 /**
131 * Sets the block's bounds for rendering it as an item
132 */
133 public void setBlockBoundsForItemRender()
134 {
135 this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
136 }
137
138 /**
139 * Updates the blocks bounds based on its current state. Args: world, x, y, z
140 */
141 public void setBlockBoundsBasedOnState(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
142 {
143 float var5 = 0.4375F;
144 float var6 = 0.5625F;
145 float var7 = 0.4375F;
146 float var8 = 0.5625F;
147 boolean var9 = this.canThisPaneConnectToThisBlockID(par1IBlockAccess.getBlockId(par2, par3, par4 - 1));
148 boolean var10 = this.canThisPaneConnectToThisBlockID(par1IBlockAccess.getBlockId(par2, par3, par4 + 1));
149 boolean var11 = this.canThisPaneConnectToThisBlockID(par1IBlockAccess.getBlockId(par2 - 1, par3, par4));
150 boolean var12 = this.canThisPaneConnectToThisBlockID(par1IBlockAccess.getBlockId(par2 + 1, par3, par4));
151
152 if ((!var11 || !var12) && (var11 || var12 || var9 || var10))
153 {
154 if (var11 && !var12)
155 {
156 var5 = 0.0F;
157 }
158 else if (!var11 && var12)
159 {
160 var6 = 1.0F;
161 }
162 }
163 else
164 {
165 var5 = 0.0F;
166 var6 = 1.0F;
167 }
168
169 if ((!var9 || !var10) && (var11 || var12 || var9 || var10))
170 {
171 if (var9 && !var10)
172 {
173 var7 = 0.0F;
174 }
175 else if (!var9 && var10)
176 {
177 var8 = 1.0F;
178 }
179 }
180 else
181 {
182 var7 = 0.0F;
183 var8 = 1.0F;
184 }
185
186 this.setBlockBounds(var5, 0.0F, var7, var6, 1.0F, var8);
187 }
188
189 @SideOnly(Side.CLIENT)
190
191 /**
192 * Returns the texture index of the thin side of the pane.
193 */
194 public int getSideTextureIndex()
195 {
196 return this.sideTextureIndex;
197 }
198
199 /**
200 * Gets passed in the blockID of the block adjacent and supposed to return true if its allowed to connect to the
201 * type of blockID passed in. Args: blockID
202 */
203 public final boolean canThisPaneConnectToThisBlockID(int par1)
204 {
205 return Block.opaqueCubeLookup[par1] || par1 == this.blockID || par1 == Block.glass.blockID;
206 }
207
208 /**
209 * Return true if a player with Silk Touch can harvest this block directly, and not its normal drops.
210 */
211 protected boolean canSilkHarvest()
212 {
213 return true;
214 }
215
216 /**
217 * Returns an item stack containing a single instance of the current block type. 'i' is the block's subtype/damage
218 * and is ignored for blocks which do not support subtypes. Blocks which cannot be harvested should return null.
219 */
220 protected ItemStack createStackedBlock(int par1)
221 {
222 return new ItemStack(this.blockID, 1, par1);
223 }
224 }