001 package net.minecraft.block;
002
003 import cpw.mods.fml.relauncher.Side;
004 import cpw.mods.fml.relauncher.SideOnly;
005 import java.util.Random;
006 import net.minecraft.block.material.Material;
007 import net.minecraft.entity.item.EntityFallingSand;
008 import net.minecraft.entity.player.EntityPlayer;
009 import net.minecraft.world.IBlockAccess;
010 import net.minecraft.world.World;
011
012 public class BlockDragonEgg extends Block
013 {
014 public BlockDragonEgg(int par1, int par2)
015 {
016 super(par1, par2, Material.dragonEgg);
017 this.setBlockBounds(0.0625F, 0.0F, 0.0625F, 0.9375F, 1.0F, 0.9375F);
018 }
019
020 /**
021 * Called whenever the block is added into the world. Args: world, x, y, z
022 */
023 public void onBlockAdded(World par1World, int par2, int par3, int par4)
024 {
025 par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate());
026 }
027
028 /**
029 * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
030 * their own) Args: x, y, z, neighbor blockID
031 */
032 public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
033 {
034 par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate());
035 }
036
037 /**
038 * Ticks the block if it's been scheduled
039 */
040 public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
041 {
042 this.fallIfPossible(par1World, par2, par3, par4);
043 }
044
045 /**
046 * Checks if the dragon egg can fall down, and if so, makes it fall.
047 */
048 private void fallIfPossible(World par1World, int par2, int par3, int par4)
049 {
050 if (BlockSand.canFallBelow(par1World, par2, par3 - 1, par4) && par3 >= 0)
051 {
052 byte var5 = 32;
053
054 if (!BlockSand.fallInstantly && par1World.checkChunksExist(par2 - var5, par3 - var5, par4 - var5, par2 + var5, par3 + var5, par4 + var5))
055 {
056 EntityFallingSand var6 = new EntityFallingSand(par1World, (double)((float)par2 + 0.5F), (double)((float)par3 + 0.5F), (double)((float)par4 + 0.5F), this.blockID);
057 par1World.spawnEntityInWorld(var6);
058 }
059 else
060 {
061 par1World.setBlockWithNotify(par2, par3, par4, 0);
062
063 while (BlockSand.canFallBelow(par1World, par2, par3 - 1, par4) && par3 > 0)
064 {
065 --par3;
066 }
067
068 if (par3 > 0)
069 {
070 par1World.setBlockWithNotify(par2, par3, par4, this.blockID);
071 }
072 }
073 }
074 }
075
076 /**
077 * Called upon block activation (right click on the block.)
078 */
079 public boolean onBlockActivated(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer, int par6, float par7, float par8, float par9)
080 {
081 this.teleportNearby(par1World, par2, par3, par4);
082 return true;
083 }
084
085 /**
086 * Called when the block is clicked by a player. Args: x, y, z, entityPlayer
087 */
088 public void onBlockClicked(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer)
089 {
090 this.teleportNearby(par1World, par2, par3, par4);
091 }
092
093 /**
094 * Teleports the dragon egg somewhere else in a 31x19x31 area centered on the egg.
095 */
096 private void teleportNearby(World par1World, int par2, int par3, int par4)
097 {
098 if (par1World.getBlockId(par2, par3, par4) == this.blockID)
099 {
100 for (int var5 = 0; var5 < 1000; ++var5)
101 {
102 int var6 = par2 + par1World.rand.nextInt(16) - par1World.rand.nextInt(16);
103 int var7 = par3 + par1World.rand.nextInt(8) - par1World.rand.nextInt(8);
104 int var8 = par4 + par1World.rand.nextInt(16) - par1World.rand.nextInt(16);
105
106 if (par1World.getBlockId(var6, var7, var8) == 0)
107 {
108 if (!par1World.isRemote)
109 {
110 par1World.setBlockAndMetadataWithNotify(var6, var7, var8, this.blockID, par1World.getBlockMetadata(par2, par3, par4));
111 par1World.setBlockWithNotify(par2, par3, par4, 0);
112 }
113 else
114 {
115 short var9 = 128;
116
117 for (int var10 = 0; var10 < var9; ++var10)
118 {
119 double var11 = par1World.rand.nextDouble();
120 float var13 = (par1World.rand.nextFloat() - 0.5F) * 0.2F;
121 float var14 = (par1World.rand.nextFloat() - 0.5F) * 0.2F;
122 float var15 = (par1World.rand.nextFloat() - 0.5F) * 0.2F;
123 double var16 = (double)var6 + (double)(par2 - var6) * var11 + (par1World.rand.nextDouble() - 0.5D) * 1.0D + 0.5D;
124 double var18 = (double)var7 + (double)(par3 - var7) * var11 + par1World.rand.nextDouble() * 1.0D - 0.5D;
125 double var20 = (double)var8 + (double)(par4 - var8) * var11 + (par1World.rand.nextDouble() - 0.5D) * 1.0D + 0.5D;
126 par1World.spawnParticle("portal", var16, var18, var20, (double)var13, (double)var14, (double)var15);
127 }
128 }
129
130 return;
131 }
132 }
133 }
134 }
135
136 /**
137 * How many world ticks before ticking
138 */
139 public int tickRate()
140 {
141 return 5;
142 }
143
144 /**
145 * Is this block (a) opaque and (b) a full 1m cube? This determines whether or not to render the shared face of two
146 * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
147 */
148 public boolean isOpaqueCube()
149 {
150 return false;
151 }
152
153 /**
154 * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
155 */
156 public boolean renderAsNormalBlock()
157 {
158 return false;
159 }
160
161 @SideOnly(Side.CLIENT)
162
163 /**
164 * Returns true if the given side of this block type should be rendered, if the adjacent block is at the given
165 * coordinates. Args: blockAccess, x, y, z, side
166 */
167 public boolean shouldSideBeRendered(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
168 {
169 return true;
170 }
171
172 /**
173 * The type of render function that is called for this block
174 */
175 public int getRenderType()
176 {
177 return 27;
178 }
179
180 @SideOnly(Side.CLIENT)
181
182 /**
183 * only called by clickMiddleMouseButton , and passed to inventory.setCurrentItem (along with isCreative)
184 */
185 public int idPicked(World par1World, int par2, int par3, int par4)
186 {
187 return 0;
188 }
189 }