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.List; 006 007 public class EntityLightningBolt extends EntityWeatherEffect 008 { 009 /** 010 * Declares which state the lightning bolt is in. Whether it's in the air, hit the ground, etc. 011 */ 012 private int lightningState; 013 014 /** 015 * A random long that is used to change the vertex of the lightning rendered in RenderLightningBolt 016 */ 017 public long boltVertex = 0L; 018 019 /** 020 * Determines the time before the EntityLightningBolt is destroyed. It is a random integer decremented over time. 021 */ 022 private int boltLivingTime; 023 024 public EntityLightningBolt(World par1World, double par2, double par4, double par6) 025 { 026 super(par1World); 027 this.setLocationAndAngles(par2, par4, par6, 0.0F, 0.0F); 028 this.lightningState = 2; 029 this.boltVertex = this.rand.nextLong(); 030 this.boltLivingTime = this.rand.nextInt(3) + 1; 031 032 if (!par1World.isRemote && par1World.difficultySetting >= 2 && par1World.doChunksNearChunkExist(MathHelper.floor_double(par2), MathHelper.floor_double(par4), MathHelper.floor_double(par6), 10)) 033 { 034 int var8 = MathHelper.floor_double(par2); 035 int var9 = MathHelper.floor_double(par4); 036 int var10 = MathHelper.floor_double(par6); 037 038 if (par1World.getBlockId(var8, var9, var10) == 0 && Block.fire.canPlaceBlockAt(par1World, var8, var9, var10)) 039 { 040 par1World.setBlockWithNotify(var8, var9, var10, Block.fire.blockID); 041 } 042 043 for (var8 = 0; var8 < 4; ++var8) 044 { 045 var9 = MathHelper.floor_double(par2) + this.rand.nextInt(3) - 1; 046 var10 = MathHelper.floor_double(par4) + this.rand.nextInt(3) - 1; 047 int var11 = MathHelper.floor_double(par6) + this.rand.nextInt(3) - 1; 048 049 if (par1World.getBlockId(var9, var10, var11) == 0 && Block.fire.canPlaceBlockAt(par1World, var9, var10, var11)) 050 { 051 par1World.setBlockWithNotify(var9, var10, var11, Block.fire.blockID); 052 } 053 } 054 } 055 } 056 057 /** 058 * Called to update the entity's position/logic. 059 */ 060 public void onUpdate() 061 { 062 super.onUpdate(); 063 064 if (this.lightningState == 2) 065 { 066 this.worldObj.playSoundEffect(this.posX, this.posY, this.posZ, "ambient.weather.thunder", 10000.0F, 0.8F + this.rand.nextFloat() * 0.2F); 067 this.worldObj.playSoundEffect(this.posX, this.posY, this.posZ, "random.explode", 2.0F, 0.5F + this.rand.nextFloat() * 0.2F); 068 } 069 070 --this.lightningState; 071 072 if (this.lightningState < 0) 073 { 074 if (this.boltLivingTime == 0) 075 { 076 this.setDead(); 077 } 078 else if (this.lightningState < -this.rand.nextInt(10)) 079 { 080 --this.boltLivingTime; 081 this.lightningState = 1; 082 this.boltVertex = this.rand.nextLong(); 083 084 if (!this.worldObj.isRemote && this.worldObj.doChunksNearChunkExist(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.posY), MathHelper.floor_double(this.posZ), 10)) 085 { 086 int var1 = MathHelper.floor_double(this.posX); 087 int var2 = MathHelper.floor_double(this.posY); 088 int var3 = MathHelper.floor_double(this.posZ); 089 090 if (this.worldObj.getBlockId(var1, var2, var3) == 0 && Block.fire.canPlaceBlockAt(this.worldObj, var1, var2, var3)) 091 { 092 this.worldObj.setBlockWithNotify(var1, var2, var3, Block.fire.blockID); 093 } 094 } 095 } 096 } 097 098 if (!this.worldObj.isRemote && this.lightningState >= 0) 099 { 100 double var6 = 3.0D; 101 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)); 102 103 for (int var4 = 0; var4 < var7.size(); ++var4) 104 { 105 Entity var5 = (Entity)var7.get(var4); 106 var5.onStruckByLightning(this); 107 } 108 109 this.worldObj.lightningFlash = 2; 110 } 111 } 112 113 protected void entityInit() {} 114 115 /** 116 * (abstract) Protected helper method to read subclass entity data from NBT. 117 */ 118 protected void readEntityFromNBT(NBTTagCompound par1NBTTagCompound) {} 119 120 /** 121 * (abstract) Protected helper method to write subclass entity data to NBT. 122 */ 123 protected void writeEntityToNBT(NBTTagCompound par1NBTTagCompound) {} 124 125 @SideOnly(Side.CLIENT) 126 127 /** 128 * Checks using a Vec3d to determine if this entity is within range of that vector to be rendered. Args: vec3D 129 */ 130 public boolean isInRangeToRenderVec3D(Vec3 par1Vec3) 131 { 132 return this.lightningState >= 0; 133 } 134 }