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
008 public class EntityLightningBolt extends EntityWeatherEffect
009 {
010 /**
011 * Declares which state the lightning bolt is in. Whether it's in the air, hit the ground, etc.
012 */
013 private int lightningState;
014
015 /**
016 * A random long that is used to change the vertex of the lightning rendered in RenderLightningBolt
017 */
018 public long boltVertex = 0L;
019
020 /**
021 * Determines the time before the EntityLightningBolt is destroyed. It is a random integer decremented over time.
022 */
023 private int boltLivingTime;
024
025 public EntityLightningBolt(World par1World, double par2, double par4, double par6)
026 {
027 super(par1World);
028 this.setLocationAndAngles(par2, par4, par6, 0.0F, 0.0F);
029 this.lightningState = 2;
030 this.boltVertex = this.rand.nextLong();
031 this.boltLivingTime = this.rand.nextInt(3) + 1;
032
033 if (par1World.difficultySetting >= 2 && par1World.doChunksNearChunkExist(MathHelper.floor_double(par2), MathHelper.floor_double(par4), MathHelper.floor_double(par6), 10))
034 {
035 int var8 = MathHelper.floor_double(par2);
036 int var9 = MathHelper.floor_double(par4);
037 int var10 = MathHelper.floor_double(par6);
038
039 if (par1World.getBlockId(var8, var9, var10) == 0 && Block.fire.canPlaceBlockAt(par1World, var8, var9, var10))
040 {
041 par1World.setBlockWithNotify(var8, var9, var10, Block.fire.blockID);
042 }
043
044 for (var8 = 0; var8 < 4; ++var8)
045 {
046 var9 = MathHelper.floor_double(par2) + this.rand.nextInt(3) - 1;
047 var10 = MathHelper.floor_double(par4) + this.rand.nextInt(3) - 1;
048 int var11 = MathHelper.floor_double(par6) + this.rand.nextInt(3) - 1;
049
050 if (par1World.getBlockId(var9, var10, var11) == 0 && Block.fire.canPlaceBlockAt(par1World, var9, var10, var11))
051 {
052 par1World.setBlockWithNotify(var9, var10, var11, Block.fire.blockID);
053 }
054 }
055 }
056 }
057
058 /**
059 * Called to update the entity's position/logic.
060 */
061 public void onUpdate()
062 {
063 super.onUpdate();
064
065 if (this.lightningState == 2)
066 {
067 this.worldObj.playSoundEffect(this.posX, this.posY, this.posZ, "ambient.weather.thunder", 10000.0F, 0.8F + this.rand.nextFloat() * 0.2F);
068 this.worldObj.playSoundEffect(this.posX, this.posY, this.posZ, "random.explode", 2.0F, 0.5F + this.rand.nextFloat() * 0.2F);
069 }
070
071 --this.lightningState;
072
073 if (this.lightningState < 0)
074 {
075 if (this.boltLivingTime == 0)
076 {
077 this.setDead();
078 }
079 else if (this.lightningState < -this.rand.nextInt(10))
080 {
081 --this.boltLivingTime;
082 this.lightningState = 1;
083 this.boltVertex = this.rand.nextLong();
084
085 if (this.worldObj.doChunksNearChunkExist(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.posY), MathHelper.floor_double(this.posZ), 10))
086 {
087 int var1 = MathHelper.floor_double(this.posX);
088 int var2 = MathHelper.floor_double(this.posY);
089 int var3 = MathHelper.floor_double(this.posZ);
090
091 if (this.worldObj.getBlockId(var1, var2, var3) == 0 && Block.fire.canPlaceBlockAt(this.worldObj, var1, var2, var3))
092 {
093 this.worldObj.setBlockWithNotify(var1, var2, var3, Block.fire.blockID);
094 }
095 }
096 }
097 }
098
099 if (this.lightningState >= 0)
100 {
101 double var6 = 3.0D;
102 List var7 = this.worldObj.getEntitiesWithinAABBExcludingEntity(this, AxisAlignedBB.getAABBPool().addOrModifyAABBInPool(this.posX - var6, this.posY - var6, this.posZ - var6, this.posX + var6, this.posY + 6.0D + var6, this.posZ + var6));
103 Iterator var4 = var7.iterator();
104
105 while (var4.hasNext())
106 {
107 Entity var5 = (Entity)var4.next();
108 var5.onStruckByLightning(this);
109 }
110
111 this.worldObj.lightningFlash = 2;
112 }
113 }
114
115 protected void entityInit() {}
116
117 /**
118 * (abstract) Protected helper method to read subclass entity data from NBT.
119 */
120 protected void readEntityFromNBT(NBTTagCompound par1NBTTagCompound) {}
121
122 /**
123 * (abstract) Protected helper method to write subclass entity data to NBT.
124 */
125 protected void writeEntityToNBT(NBTTagCompound par1NBTTagCompound) {}
126
127 @SideOnly(Side.CLIENT)
128
129 /**
130 * Checks using a Vec3d to determine if this entity is within range of that vector to be rendered. Args: vec3D
131 */
132 public boolean isInRangeToRenderVec3D(Vec3 par1Vec3)
133 {
134 return this.lightningState >= 0;
135 }
136 }