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 }