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