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        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 = par1World.getBlockMetadata(par2, par3, par4);
090            int var11 = var10 & 8;
091            var10 &= 7;
092    
093    
094            ForgeDirection dir = ForgeDirection.getOrientation(par5);
095    
096            if (dir == NORTH && par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH))
097            {
098                var10 = 4;
099            }
100            else if (dir == SOUTH && par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH))
101            {
102                var10 = 3;
103            }
104            else if (dir == WEST && par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST))
105            {
106                var10 = 2;
107            }
108            else if (dir == EAST && par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST))
109            {
110                var10 = 1;
111            }
112            else
113            {
114                var10 = this.getOrientation(par1World, par2, par3, par4);
115            }
116    
117            return var10 + var11;
118        }
119    
120        /**
121         * Get side which this button is facing.
122         */
123        private int getOrientation(World par1World, int par2, int par3, int par4)
124        {
125            if (par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST)) return 1;
126            if (par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST)) return 2;
127            if (par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH)) return 3;
128            if (par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH)) return 4;
129            return 1;
130        }
131    
132        /**
133         * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
134         * their own) Args: x, y, z, neighbor blockID
135         */
136        public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
137        {
138            if (this.redundantCanPlaceBlockAt(par1World, par2, par3, par4))
139            {
140                int var6 = par1World.getBlockMetadata(par2, par3, par4) & 7;
141                boolean var7 = false;
142    
143                if (!par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST) && var6 == 1)
144                {
145                    var7 = true;
146                }
147    
148                if (!par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST) && var6 == 2)
149                {
150                    var7 = true;
151                }
152    
153                if (!par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH) && var6 == 3)
154                {
155                    var7 = true;
156                }
157    
158                if (!par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH) && var6 == 4)
159                {
160                    var7 = true;
161                }
162    
163                if (var7)
164                {
165                    this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
166                    par1World.setBlockWithNotify(par2, par3, par4, 0);
167                }
168            }
169        }
170    
171        /**
172         * This method is redundant, check it out...
173         */
174        private boolean redundantCanPlaceBlockAt(World par1World, int par2, int par3, int par4)
175        {
176            if (!this.canPlaceBlockAt(par1World, par2, par3, par4))
177            {
178                this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
179                par1World.setBlockWithNotify(par2, par3, par4, 0);
180                return false;
181            }
182            else
183            {
184                return true;
185            }
186        }
187    
188        /**
189         * Updates the blocks bounds based on its current state. Args: world, x, y, z
190         */
191        public void setBlockBoundsBasedOnState(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
192        {
193            int var5 = par1IBlockAccess.getBlockMetadata(par2, par3, par4);
194            this.func_82534_e(var5);
195        }
196    
197        private void func_82534_e(int par1)
198        {
199            int var2 = par1 & 7;
200            boolean var3 = (par1 & 8) > 0;
201            float var4 = 0.375F;
202            float var5 = 0.625F;
203            float var6 = 0.1875F;
204            float var7 = 0.125F;
205    
206            if (var3)
207            {
208                var7 = 0.0625F;
209            }
210    
211            if (var2 == 1)
212            {
213                this.setBlockBounds(0.0F, var4, 0.5F - var6, var7, var5, 0.5F + var6);
214            }
215            else if (var2 == 2)
216            {
217                this.setBlockBounds(1.0F - var7, var4, 0.5F - var6, 1.0F, var5, 0.5F + var6);
218            }
219            else if (var2 == 3)
220            {
221                this.setBlockBounds(0.5F - var6, var4, 0.0F, 0.5F + var6, var5, var7);
222            }
223            else if (var2 == 4)
224            {
225                this.setBlockBounds(0.5F - var6, var4, 1.0F - var7, 0.5F + var6, var5, 1.0F);
226            }
227        }
228    
229        /**
230         * Called when the block is clicked by a player. Args: x, y, z, entityPlayer
231         */
232        public void onBlockClicked(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer) {}
233    
234        /**
235         * Called upon block activation (right click on the block.)
236         */
237        public boolean onBlockActivated(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer, int par6, float par7, float par8, float par9)
238        {
239            int var10 = par1World.getBlockMetadata(par2, par3, par4);
240            int var11 = var10 & 7;
241            int var12 = 8 - (var10 & 8);
242    
243            if (var12 == 0)
244            {
245                return true;
246            }
247            else
248            {
249                par1World.setBlockMetadataWithNotify(par2, par3, par4, var11 + var12);
250                par1World.markBlockRangeForRenderUpdate(par2, par3, par4, par2, par3, par4);
251                par1World.playSoundEffect((double)par2 + 0.5D, (double)par3 + 0.5D, (double)par4 + 0.5D, "random.click", 0.3F, 0.6F);
252                this.func_82536_d(par1World, par2, par3, par4, var11);
253                par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate());
254                return true;
255            }
256        }
257    
258        /**
259         * ejects contained items into the world, and notifies neighbours of an update, as appropriate
260         */
261        public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
262        {
263            if ((par6 & 8) > 0)
264            {
265                int var7 = par6 & 7;
266                this.func_82536_d(par1World, par2, par3, par4, var7);
267            }
268    
269            super.breakBlock(par1World, par2, par3, par4, par5, par6);
270        }
271    
272        /**
273         * Returns true if the block is emitting indirect/weak redstone power on the specified side. If isBlockNormalCube
274         * returns true, standard redstone propagation rules will apply instead and this will not be called. Args: World, X,
275         * Y, Z, side
276         */
277        public boolean isProvidingWeakPower(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
278        {
279            return (par1IBlockAccess.getBlockMetadata(par2, par3, par4) & 8) > 0;
280        }
281    
282        /**
283         * Returns true if the block is emitting direct/strong redstone power on the specified side. Args: World, X, Y, Z,
284         * side
285         */
286        public boolean isProvidingStrongPower(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
287        {
288            int var6 = par1IBlockAccess.getBlockMetadata(par2, par3, par4);
289    
290            if ((var6 & 8) == 0)
291            {
292                return false;
293            }
294            else
295            {
296                int var7 = var6 & 7;
297                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)));
298            }
299        }
300    
301        /**
302         * Can this block provide power. Only wire currently seems to have this change based on its state.
303         */
304        public boolean canProvidePower()
305        {
306            return true;
307        }
308    
309        /**
310         * Ticks the block if it's been scheduled
311         */
312        public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
313        {
314            if (!par1World.isRemote)
315            {
316                int var6 = par1World.getBlockMetadata(par2, par3, par4);
317    
318                if ((var6 & 8) != 0)
319                {
320                    if (this.sensible)
321                    {
322                        this.func_82535_o(par1World, par2, par3, par4);
323                    }
324                    else
325                    {
326                        par1World.setBlockMetadataWithNotify(par2, par3, par4, var6 & 7);
327                        int var7 = var6 & 7;
328                        this.func_82536_d(par1World, par2, par3, par4, var7);
329                        par1World.playSoundEffect((double)par2 + 0.5D, (double)par3 + 0.5D, (double)par4 + 0.5D, "random.click", 0.3F, 0.5F);
330                        par1World.markBlockRangeForRenderUpdate(par2, par3, par4, par2, par3, par4);
331                    }
332                }
333            }
334        }
335    
336        /**
337         * Sets the block's bounds for rendering it as an item
338         */
339        public void setBlockBoundsForItemRender()
340        {
341            float var1 = 0.1875F;
342            float var2 = 0.125F;
343            float var3 = 0.125F;
344            this.setBlockBounds(0.5F - var1, 0.5F - var2, 0.5F - var3, 0.5F + var1, 0.5F + var2, 0.5F + var3);
345        }
346    
347        /**
348         * Triggered whenever an entity collides with this block (enters into the block). Args: world, x, y, z, entity
349         */
350        public void onEntityCollidedWithBlock(World par1World, int par2, int par3, int par4, Entity par5Entity)
351        {
352            if (!par1World.isRemote)
353            {
354                if (this.sensible)
355                {
356                    if ((par1World.getBlockMetadata(par2, par3, par4) & 8) == 0)
357                    {
358                        this.func_82535_o(par1World, par2, par3, par4);
359                    }
360                }
361            }
362        }
363    
364        protected void func_82535_o(World par1World, int par2, int par3, int par4)
365        {
366            int var5 = par1World.getBlockMetadata(par2, par3, par4);
367            int var6 = var5 & 7;
368            boolean var7 = (var5 & 8) != 0;
369            this.func_82534_e(var5);
370            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));
371            boolean var8 = !var9.isEmpty();
372    
373            if (var8 && !var7)
374            {
375                par1World.setBlockMetadataWithNotify(par2, par3, par4, var6 | 8);
376                this.func_82536_d(par1World, par2, par3, par4, var6);
377                par1World.markBlockRangeForRenderUpdate(par2, par3, par4, par2, par3, par4);
378                par1World.playSoundEffect((double)par2 + 0.5D, (double)par3 + 0.5D, (double)par4 + 0.5D, "random.click", 0.3F, 0.6F);
379            }
380    
381            if (!var8 && var7)
382            {
383                par1World.setBlockMetadataWithNotify(par2, par3, par4, var6);
384                this.func_82536_d(par1World, par2, par3, par4, var6);
385                par1World.markBlockRangeForRenderUpdate(par2, par3, par4, par2, par3, par4);
386                par1World.playSoundEffect((double)par2 + 0.5D, (double)par3 + 0.5D, (double)par4 + 0.5D, "random.click", 0.3F, 0.5F);
387            }
388    
389            if (var8)
390            {
391                par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate());
392            }
393        }
394    
395        private void func_82536_d(World par1World, int par2, int par3, int par4, int par5)
396        {
397            par1World.notifyBlocksOfNeighborChange(par2, par3, par4, this.blockID);
398    
399            if (par5 == 1)
400            {
401                par1World.notifyBlocksOfNeighborChange(par2 - 1, par3, par4, this.blockID);
402            }
403            else if (par5 == 2)
404            {
405                par1World.notifyBlocksOfNeighborChange(par2 + 1, par3, par4, this.blockID);
406            }
407            else if (par5 == 3)
408            {
409                par1World.notifyBlocksOfNeighborChange(par2, par3, par4 - 1, this.blockID);
410            }
411            else if (par5 == 4)
412            {
413                par1World.notifyBlocksOfNeighborChange(par2, par3, par4 + 1, this.blockID);
414            }
415            else
416            {
417                par1World.notifyBlocksOfNeighborChange(par2, par3 - 1, par4, this.blockID);
418            }
419        }
420    }