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.Iterator;
006 import java.util.List;
007 import java.util.Random;
008
009 public class BlockTripWire extends Block
010 {
011 public BlockTripWire(int par1)
012 {
013 super(par1, 173, Material.circuits);
014 this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.15625F, 1.0F);
015 this.setTickRandomly(true);
016 }
017
018 /**
019 * How many world ticks before ticking
020 */
021 public int tickRate()
022 {
023 return 10;
024 }
025
026 /**
027 * Returns a bounding box from the pool of bounding boxes (this means this box can change after the pool has been
028 * cleared to be reused)
029 */
030 public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
031 {
032 return null;
033 }
034
035 /**
036 * Is this block (a) opaque and (b) a full 1m cube? This determines whether or not to render the shared face of two
037 * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
038 */
039 public boolean isOpaqueCube()
040 {
041 return false;
042 }
043
044 /**
045 * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
046 */
047 public boolean renderAsNormalBlock()
048 {
049 return false;
050 }
051
052 @SideOnly(Side.CLIENT)
053
054 /**
055 * Returns which pass should this block be rendered on. 0 for solids and 1 for alpha
056 */
057 public int getRenderBlockPass()
058 {
059 return 1;
060 }
061
062 /**
063 * The type of render function that is called for this block
064 */
065 public int getRenderType()
066 {
067 return 30;
068 }
069
070 /**
071 * Returns the ID of the items to drop on destruction.
072 */
073 public int idDropped(int par1, Random par2Random, int par3)
074 {
075 return Item.silk.shiftedIndex;
076 }
077
078 @SideOnly(Side.CLIENT)
079
080 /**
081 * only called by clickMiddleMouseButton , and passed to inventory.setCurrentItem (along with isCreative)
082 */
083 public int idPicked(World par1World, int par2, int par3, int par4)
084 {
085 return Item.silk.shiftedIndex;
086 }
087
088 /**
089 * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
090 * their own) Args: x, y, z, neighbor blockID
091 */
092 public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
093 {
094 int var6 = par1World.getBlockMetadata(par2, par3, par4);
095 boolean var7 = (var6 & 2) == 2;
096 boolean var8 = !par1World.doesBlockHaveSolidTopSurface(par2, par3 - 1, par4);
097
098 if (var7 != var8)
099 {
100 this.dropBlockAsItem(par1World, par2, par3, par4, var6, 0);
101 par1World.setBlockWithNotify(par2, par3, par4, 0);
102 }
103 }
104
105 /**
106 * Updates the blocks bounds based on its current state. Args: world, x, y, z
107 */
108 public void setBlockBoundsBasedOnState(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
109 {
110 int var5 = par1IBlockAccess.getBlockMetadata(par2, par3, par4);
111 boolean var6 = (var5 & 4) == 4;
112 boolean var7 = (var5 & 2) == 2;
113
114 if (!var7)
115 {
116 this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.09375F, 1.0F);
117 }
118 else if (!var6)
119 {
120 this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.5F, 1.0F);
121 }
122 else
123 {
124 this.setBlockBounds(0.0F, 0.0625F, 0.0F, 1.0F, 0.15625F, 1.0F);
125 }
126 }
127
128 /**
129 * Called whenever the block is added into the world. Args: world, x, y, z
130 */
131 public void onBlockAdded(World par1World, int par2, int par3, int par4)
132 {
133 int var5 = par1World.doesBlockHaveSolidTopSurface(par2, par3 - 1, par4) ? 0 : 2;
134 par1World.setBlockMetadataWithNotify(par2, par3, par4, var5);
135 this.func_72149_e(par1World, par2, par3, par4, var5);
136 }
137
138 /**
139 * ejects contained items into the world, and notifies neighbours of an update, as appropriate
140 */
141 public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
142 {
143 this.func_72149_e(par1World, par2, par3, par4, par6 | 1);
144 }
145
146 /**
147 * Called when the block is attempted to be harvested
148 */
149 public void onBlockHarvested(World par1World, int par2, int par3, int par4, int par5, EntityPlayer par6EntityPlayer)
150 {
151 if (!par1World.isRemote)
152 {
153 if (par6EntityPlayer.getCurrentEquippedItem() != null && par6EntityPlayer.getCurrentEquippedItem().itemID == Item.shears.shiftedIndex)
154 {
155 par1World.setBlockMetadataWithNotify(par2, par3, par4, par5 | 8);
156 }
157 }
158 }
159
160 private void func_72149_e(World par1World, int par2, int par3, int par4, int par5)
161 {
162 int var6 = 0;
163
164 while (var6 < 2)
165 {
166 int var7 = 1;
167
168 while (true)
169 {
170 if (var7 < 42)
171 {
172 int var8 = par2 + Direction.offsetX[var6] * var7;
173 int var9 = par4 + Direction.offsetZ[var6] * var7;
174 int var10 = par1World.getBlockId(var8, par3, var9);
175
176 if (var10 == Block.tripWireSource.blockID)
177 {
178 int var11 = par1World.getBlockMetadata(var8, par3, var9) & 3;
179
180 if (var11 == Direction.footInvisibleFaceRemap[var6])
181 {
182 Block.tripWireSource.func_72143_a(par1World, var8, par3, var9, var10, par1World.getBlockMetadata(var8, par3, var9), true, var7, par5);
183 }
184 }
185 else if (var10 == Block.tripWire.blockID)
186 {
187 ++var7;
188 continue;
189 }
190 }
191
192 ++var6;
193 break;
194 }
195 }
196 }
197
198 /**
199 * Triggered whenever an entity collides with this block (enters into the block). Args: world, x, y, z, entity
200 */
201 public void onEntityCollidedWithBlock(World par1World, int par2, int par3, int par4, Entity par5Entity)
202 {
203 if (!par1World.isRemote)
204 {
205 if ((par1World.getBlockMetadata(par2, par3, par4) & 1) != 1)
206 {
207 this.updateTripWireState(par1World, par2, par3, par4);
208 }
209 }
210 }
211
212 /**
213 * Ticks the block if it's been scheduled
214 */
215 public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
216 {
217 if (!par1World.isRemote)
218 {
219 if ((par1World.getBlockMetadata(par2, par3, par4) & 1) == 1)
220 {
221 this.updateTripWireState(par1World, par2, par3, par4);
222 }
223 }
224 }
225
226 private void updateTripWireState(World par1World, int par2, int par3, int par4)
227 {
228 int var5 = par1World.getBlockMetadata(par2, par3, par4);
229 boolean var6 = (var5 & 1) == 1;
230 boolean var7 = false;
231 List var8 = par1World.getEntitiesWithinAABBExcludingEntity((Entity)null, AxisAlignedBB.getAABBPool().addOrModifyAABBInPool((double)par2 + this.minX, (double)par3 + this.minY, (double)par4 + this.minZ, (double)par2 + this.maxX, (double)par3 + this.maxY, (double)par4 + this.maxZ));
232
233 if (!var8.isEmpty())
234 {
235 Iterator var9 = var8.iterator();
236
237 while (var9.hasNext())
238 {
239 Entity var10 = (Entity)var9.next();
240
241 if (!var10.func_82144_au())
242 {
243 var7 = true;
244 break;
245 }
246 }
247 }
248
249 if (var7 && !var6)
250 {
251 var5 |= 1;
252 }
253
254 if (!var7 && var6)
255 {
256 var5 &= -2;
257 }
258
259 if (var7 != var6)
260 {
261 par1World.setBlockMetadataWithNotify(par2, par3, par4, var5);
262 this.func_72149_e(par1World, par2, par3, par4, var5);
263 }
264
265 if (var7)
266 {
267 par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate());
268 }
269 }
270
271 @SideOnly(Side.CLIENT)
272 public static boolean func_72148_a(IBlockAccess par0IBlockAccess, int par1, int par2, int par3, int par4, int par5)
273 {
274 int var6 = par1 + Direction.offsetX[par5];
275 int var8 = par3 + Direction.offsetZ[par5];
276 int var9 = par0IBlockAccess.getBlockId(var6, par2, var8);
277 boolean var10 = (par4 & 2) == 2;
278 int var11;
279
280 if (var9 == Block.tripWireSource.blockID)
281 {
282 var11 = par0IBlockAccess.getBlockMetadata(var6, par2, var8);
283 int var13 = var11 & 3;
284 return var13 == Direction.footInvisibleFaceRemap[par5];
285 }
286 else if (var9 == Block.tripWire.blockID)
287 {
288 var11 = par0IBlockAccess.getBlockMetadata(var6, par2, var8);
289 boolean var12 = (var11 & 2) == 2;
290 return var10 == var12;
291 }
292 else
293 {
294 return false;
295 }
296 }
297 }