001 package net.minecraft.block;
002
003 import java.util.List;
004 import java.util.Random;
005 import net.minecraft.block.material.Material;
006 import net.minecraft.creativetab.CreativeTabs;
007 import net.minecraft.entity.Entity;
008 import net.minecraft.entity.player.EntityPlayer;
009 import net.minecraft.entity.projectile.EntityArrow;
010 import net.minecraft.util.AxisAlignedBB;
011 import net.minecraft.world.IBlockAccess;
012 import net.minecraft.world.World;
013
014 import net.minecraftforge.common.ForgeDirection;
015 import static net.minecraftforge.common.ForgeDirection.*;
016
017 public class BlockButton extends Block
018 {
019 /** Whether this button is sensible to arrows, used by wooden buttons. */
020 protected boolean sensible;
021
022 protected BlockButton(int par1, int par2, boolean par3)
023 {
024 super(par1, par2, Material.circuits);
025 this.setTickRandomly(true);
026 this.setCreativeTab(CreativeTabs.tabRedstone);
027 this.sensible = par3;
028 }
029
030 /**
031 * Returns a bounding box from the pool of bounding boxes (this means this box can change after the pool has been
032 * cleared to be reused)
033 */
034 public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
035 {
036 return null;
037 }
038
039 /**
040 * How many world ticks before ticking
041 */
042 public int tickRate()
043 {
044 return this.sensible ? 30 : 20;
045 }
046
047 /**
048 * Is this block (a) opaque and (b) a full 1m cube? This determines whether or not to render the shared face of two
049 * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
050 */
051 public boolean isOpaqueCube()
052 {
053 return false;
054 }
055
056 /**
057 * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
058 */
059 public boolean renderAsNormalBlock()
060 {
061 return false;
062 }
063
064 /**
065 * checks to see if you can place this block can be placed on that side of a block: BlockLever overrides
066 */
067 public boolean canPlaceBlockOnSide(World par1World, int par2, int par3, int par4, int par5)
068 {
069 ForgeDirection dir = ForgeDirection.getOrientation(par5);
070 return (dir == NORTH && par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH)) ||
071 (dir == SOUTH && par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH)) ||
072 (dir == WEST && par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST)) ||
073 (dir == EAST && par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST));
074 }
075
076 /**
077 * Checks to see if its valid to put this block at the specified coordinates. Args: world, x, y, z
078 */
079 public boolean canPlaceBlockAt(World par1World, int par2, int par3, int par4)
080 {
081 return (par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST)) ||
082 (par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST)) ||
083 (par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH)) ||
084 (par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH));
085 }
086
087 /**
088 * Called when a block is placed using its ItemBlock. Args: World, X, Y, Z, side, hitX, hitY, hitZ, block metadata
089 */
090 public int onBlockPlaced(World par1World, int par2, int par3, int par4, int par5, float par6, float par7, float par8, int par9)
091 {
092 int var10 = par1World.getBlockMetadata(par2, par3, par4);
093 int var11 = var10 & 8;
094 var10 &= 7;
095
096
097 ForgeDirection dir = ForgeDirection.getOrientation(par5);
098
099 if (dir == NORTH && par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH))
100 {
101 var10 = 4;
102 }
103 else if (dir == SOUTH && par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH))
104 {
105 var10 = 3;
106 }
107 else if (dir == WEST && par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST))
108 {
109 var10 = 2;
110 }
111 else if (dir == EAST && par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST))
112 {
113 var10 = 1;
114 }
115 else
116 {
117 var10 = this.getOrientation(par1World, par2, par3, par4);
118 }
119
120 return var10 + var11;
121 }
122
123 /**
124 * Get side which this button is facing.
125 */
126 private int getOrientation(World par1World, int par2, int par3, int par4)
127 {
128 if (par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST)) return 1;
129 if (par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST)) return 2;
130 if (par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH)) return 3;
131 if (par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH)) return 4;
132 return 1;
133 }
134
135 /**
136 * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
137 * their own) Args: x, y, z, neighbor blockID
138 */
139 public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
140 {
141 if (this.redundantCanPlaceBlockAt(par1World, par2, par3, par4))
142 {
143 int var6 = par1World.getBlockMetadata(par2, par3, par4) & 7;
144 boolean var7 = false;
145
146 if (!par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST) && var6 == 1)
147 {
148 var7 = true;
149 }
150
151 if (!par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST) && var6 == 2)
152 {
153 var7 = true;
154 }
155
156 if (!par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH) && var6 == 3)
157 {
158 var7 = true;
159 }
160
161 if (!par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH) && var6 == 4)
162 {
163 var7 = true;
164 }
165
166 if (var7)
167 {
168 this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
169 par1World.setBlockWithNotify(par2, par3, par4, 0);
170 }
171 }
172 }
173
174 /**
175 * This method is redundant, check it out...
176 */
177 private boolean redundantCanPlaceBlockAt(World par1World, int par2, int par3, int par4)
178 {
179 if (!this.canPlaceBlockAt(par1World, par2, par3, par4))
180 {
181 this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
182 par1World.setBlockWithNotify(par2, par3, par4, 0);
183 return false;
184 }
185 else
186 {
187 return true;
188 }
189 }
190
191 /**
192 * Updates the blocks bounds based on its current state. Args: world, x, y, z
193 */
194 public void setBlockBoundsBasedOnState(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
195 {
196 int var5 = par1IBlockAccess.getBlockMetadata(par2, par3, par4);
197 this.func_82534_e(var5);
198 }
199
200 private void func_82534_e(int par1)
201 {
202 int var2 = par1 & 7;
203 boolean var3 = (par1 & 8) > 0;
204 float var4 = 0.375F;
205 float var5 = 0.625F;
206 float var6 = 0.1875F;
207 float var7 = 0.125F;
208
209 if (var3)
210 {
211 var7 = 0.0625F;
212 }
213
214 if (var2 == 1)
215 {
216 this.setBlockBounds(0.0F, var4, 0.5F - var6, var7, var5, 0.5F + var6);
217 }
218 else if (var2 == 2)
219 {
220 this.setBlockBounds(1.0F - var7, var4, 0.5F - var6, 1.0F, var5, 0.5F + var6);
221 }
222 else if (var2 == 3)
223 {
224 this.setBlockBounds(0.5F - var6, var4, 0.0F, 0.5F + var6, var5, var7);
225 }
226 else if (var2 == 4)
227 {
228 this.setBlockBounds(0.5F - var6, var4, 1.0F - var7, 0.5F + var6, var5, 1.0F);
229 }
230 }
231
232 /**
233 * Called when the block is clicked by a player. Args: x, y, z, entityPlayer
234 */
235 public void onBlockClicked(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer) {}
236
237 /**
238 * Called upon block activation (right click on the block.)
239 */
240 public boolean onBlockActivated(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer, int par6, float par7, float par8, float par9)
241 {
242 int var10 = par1World.getBlockMetadata(par2, par3, par4);
243 int var11 = var10 & 7;
244 int var12 = 8 - (var10 & 8);
245
246 if (var12 == 0)
247 {
248 return true;
249 }
250 else
251 {
252 par1World.setBlockMetadataWithNotify(par2, par3, par4, var11 + var12);
253 par1World.markBlockRangeForRenderUpdate(par2, par3, par4, par2, par3, par4);
254 par1World.playSoundEffect((double)par2 + 0.5D, (double)par3 + 0.5D, (double)par4 + 0.5D, "random.click", 0.3F, 0.6F);
255 this.func_82536_d(par1World, par2, par3, par4, var11);
256 par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate());
257 return true;
258 }
259 }
260
261 /**
262 * ejects contained items into the world, and notifies neighbours of an update, as appropriate
263 */
264 public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
265 {
266 if ((par6 & 8) > 0)
267 {
268 int var7 = par6 & 7;
269 this.func_82536_d(par1World, par2, par3, par4, var7);
270 }
271
272 super.breakBlock(par1World, par2, par3, par4, par5, par6);
273 }
274
275 /**
276 * Returns true if the block is emitting indirect/weak redstone power on the specified side. If isBlockNormalCube
277 * returns true, standard redstone propagation rules will apply instead and this will not be called. Args: World, X,
278 * Y, Z, side. Note that the side is reversed - eg it is 1 (up) when checking the bottom of the block.
279 */
280 public boolean isProvidingWeakPower(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
281 {
282 return (par1IBlockAccess.getBlockMetadata(par2, par3, par4) & 8) > 0;
283 }
284
285 /**
286 * Returns true if the block is emitting direct/strong redstone power on the specified side. Args: World, X, Y, Z,
287 * side. Note that the side is reversed - eg it is 1 (up) when checking the bottom of the block.
288 */
289 public boolean isProvidingStrongPower(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
290 {
291 int var6 = par1IBlockAccess.getBlockMetadata(par2, par3, par4);
292
293 if ((var6 & 8) == 0)
294 {
295 return false;
296 }
297 else
298 {
299 int var7 = var6 & 7;
300 return var7 == 5 && par5 == 1 ? true : (var7 == 4 && par5 == 2 ? true : (var7 == 3 && par5 == 3 ? true : (var7 == 2 && par5 == 4 ? true : var7 == 1 && par5 == 5)));
301 }
302 }
303
304 /**
305 * Can this block provide power. Only wire currently seems to have this change based on its state.
306 */
307 public boolean canProvidePower()
308 {
309 return true;
310 }
311
312 /**
313 * Ticks the block if it's been scheduled
314 */
315 public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
316 {
317 if (!par1World.isRemote)
318 {
319 int var6 = par1World.getBlockMetadata(par2, par3, par4);
320
321 if ((var6 & 8) != 0)
322 {
323 if (this.sensible)
324 {
325 this.func_82535_o(par1World, par2, par3, par4);
326 }
327 else
328 {
329 par1World.setBlockMetadataWithNotify(par2, par3, par4, var6 & 7);
330 int var7 = var6 & 7;
331 this.func_82536_d(par1World, par2, par3, par4, var7);
332 par1World.playSoundEffect((double)par2 + 0.5D, (double)par3 + 0.5D, (double)par4 + 0.5D, "random.click", 0.3F, 0.5F);
333 par1World.markBlockRangeForRenderUpdate(par2, par3, par4, par2, par3, par4);
334 }
335 }
336 }
337 }
338
339 /**
340 * Sets the block's bounds for rendering it as an item
341 */
342 public void setBlockBoundsForItemRender()
343 {
344 float var1 = 0.1875F;
345 float var2 = 0.125F;
346 float var3 = 0.125F;
347 this.setBlockBounds(0.5F - var1, 0.5F - var2, 0.5F - var3, 0.5F + var1, 0.5F + var2, 0.5F + var3);
348 }
349
350 /**
351 * Triggered whenever an entity collides with this block (enters into the block). Args: world, x, y, z, entity
352 */
353 public void onEntityCollidedWithBlock(World par1World, int par2, int par3, int par4, Entity par5Entity)
354 {
355 if (!par1World.isRemote)
356 {
357 if (this.sensible)
358 {
359 if ((par1World.getBlockMetadata(par2, par3, par4) & 8) == 0)
360 {
361 this.func_82535_o(par1World, par2, par3, par4);
362 }
363 }
364 }
365 }
366
367 protected void func_82535_o(World par1World, int par2, int par3, int par4)
368 {
369 int var5 = par1World.getBlockMetadata(par2, par3, par4);
370 int var6 = var5 & 7;
371 boolean var7 = (var5 & 8) != 0;
372 this.func_82534_e(var5);
373 List var9 = par1World.getEntitiesWithinAABB(EntityArrow.class, 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));
374 boolean var8 = !var9.isEmpty();
375
376 if (var8 && !var7)
377 {
378 par1World.setBlockMetadataWithNotify(par2, par3, par4, var6 | 8);
379 this.func_82536_d(par1World, par2, par3, par4, var6);
380 par1World.markBlockRangeForRenderUpdate(par2, par3, par4, par2, par3, par4);
381 par1World.playSoundEffect((double)par2 + 0.5D, (double)par3 + 0.5D, (double)par4 + 0.5D, "random.click", 0.3F, 0.6F);
382 }
383
384 if (!var8 && var7)
385 {
386 par1World.setBlockMetadataWithNotify(par2, par3, par4, var6);
387 this.func_82536_d(par1World, par2, par3, par4, var6);
388 par1World.markBlockRangeForRenderUpdate(par2, par3, par4, par2, par3, par4);
389 par1World.playSoundEffect((double)par2 + 0.5D, (double)par3 + 0.5D, (double)par4 + 0.5D, "random.click", 0.3F, 0.5F);
390 }
391
392 if (var8)
393 {
394 par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate());
395 }
396 }
397
398 private void func_82536_d(World par1World, int par2, int par3, int par4, int par5)
399 {
400 par1World.notifyBlocksOfNeighborChange(par2, par3, par4, this.blockID);
401
402 if (par5 == 1)
403 {
404 par1World.notifyBlocksOfNeighborChange(par2 - 1, par3, par4, this.blockID);
405 }
406 else if (par5 == 2)
407 {
408 par1World.notifyBlocksOfNeighborChange(par2 + 1, par3, par4, this.blockID);
409 }
410 else if (par5 == 3)
411 {
412 par1World.notifyBlocksOfNeighborChange(par2, par3, par4 - 1, this.blockID);
413 }
414 else if (par5 == 4)
415 {
416 par1World.notifyBlocksOfNeighborChange(par2, par3, par4 + 1, this.blockID);
417 }
418 else
419 {
420 par1World.notifyBlocksOfNeighborChange(par2, par3 - 1, par4, this.blockID);
421 }
422 }
423 }