001 package net.minecraft.entity.effect; 002 003 import cpw.mods.fml.common.Side; 004 import cpw.mods.fml.common.asm.SideOnly; 005 import java.util.List; 006 import net.minecraft.block.Block; 007 import net.minecraft.entity.Entity; 008 import net.minecraft.nbt.NBTTagCompound; 009 import net.minecraft.util.AxisAlignedBB; 010 import net.minecraft.util.MathHelper; 011 import net.minecraft.util.Vec3; 012 import net.minecraft.world.World; 013 014 public class EntityLightningBolt extends EntityWeatherEffect 015 { 016 /** 017 * Declares which state the lightning bolt is in. Whether it's in the air, hit the ground, etc. 018 */ 019 private int lightningState; 020 021 /** 022 * A random long that is used to change the vertex of the lightning rendered in RenderLightningBolt 023 */ 024 public long boltVertex = 0L; 025 026 /** 027 * Determines the time before the EntityLightningBolt is destroyed. It is a random integer decremented over time. 028 */ 029 private int boltLivingTime; 030 031 public EntityLightningBolt(World par1World, double par2, double par4, double par6) 032 { 033 super(par1World); 034 this.setLocationAndAngles(par2, par4, par6, 0.0F, 0.0F); 035 this.lightningState = 2; 036 this.boltVertex = this.rand.nextLong(); 037 this.boltLivingTime = this.rand.nextInt(3) + 1; 038 039 if (!par1World.isRemote && par1World.difficultySetting >= 2 && par1World.doChunksNearChunkExist(MathHelper.floor_double(par2), MathHelper.floor_double(par4), MathHelper.floor_double(par6), 10)) 040 { 041 int var8 = MathHelper.floor_double(par2); 042 int var9 = MathHelper.floor_double(par4); 043 int var10 = MathHelper.floor_double(par6); 044 045 if (par1World.getBlockId(var8, var9, var10) == 0 && Block.fire.canPlaceBlockAt(par1World, var8, var9, var10)) 046 { 047 par1World.setBlockWithNotify(var8, var9, var10, Block.fire.blockID); 048 } 049 050 for (var8 = 0; var8 < 4; ++var8) 051 { 052 var9 = MathHelper.floor_double(par2) + this.rand.nextInt(3) - 1; 053 var10 = MathHelper.floor_double(par4) + this.rand.nextInt(3) - 1; 054 int var11 = MathHelper.floor_double(par6) + this.rand.nextInt(3) - 1; 055 056 if (par1World.getBlockId(var9, var10, var11) == 0 && Block.fire.canPlaceBlockAt(par1World, var9, var10, var11)) 057 { 058 par1World.setBlockWithNotify(var9, var10, var11, Block.fire.blockID); 059 } 060 } 061 } 062 } 063 064 /** 065 * Called to update the entity's position/logic. 066 */ 067 public void onUpdate() 068 { 069 super.onUpdate(); 070 071 if (this.lightningState == 2) 072 { 073 this.worldObj.playSoundEffect(this.posX, this.posY, this.posZ, "ambient.weather.thunder", 10000.0F, 0.8F + this.rand.nextFloat() * 0.2F); 074 this.worldObj.playSoundEffect(this.posX, this.posY, this.posZ, "random.explode", 2.0F, 0.5F + this.rand.nextFloat() * 0.2F); 075 } 076 077 --this.lightningState; 078 079 if (this.lightningState < 0) 080 { 081 if (this.boltLivingTime == 0) 082 { 083 this.setDead(); 084 } 085 else if (this.lightningState < -this.rand.nextInt(10)) 086 { 087 --this.boltLivingTime; 088 this.lightningState = 1; 089 this.boltVertex = this.rand.nextLong(); 090 091 if (!this.worldObj.isRemote && this.worldObj.doChunksNearChunkExist(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.posY), MathHelper.floor_double(this.posZ), 10)) 092 { 093 int var1 = MathHelper.floor_double(this.posX); 094 int var2 = MathHelper.floor_double(this.posY); 095 int var3 = MathHelper.floor_double(this.posZ); 096 097 if (this.worldObj.getBlockId(var1, var2, var3) == 0 && Block.fire.canPlaceBlockAt(this.worldObj, var1, var2, var3)) 098 { 099 this.worldObj.setBlockWithNotify(var1, var2, var3, Block.fire.blockID); 100 } 101 } 102 } 103 } 104 105 if (!this.worldObj.isRemote && this.lightningState >= 0) 106 { 107 double var6 = 3.0D; 108 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)); 109 110 for (int var4 = 0; var4 < var7.size(); ++var4) 111 { 112 Entity var5 = (Entity)var7.get(var4); 113 var5.onStruckByLightning(this); 114 } 115 116 this.worldObj.lightningFlash = 2; 117 } 118 } 119 120 protected void entityInit() {} 121 122 /** 123 * (abstract) Protected helper method to read subclass entity data from NBT. 124 */ 125 protected void readEntityFromNBT(NBTTagCompound par1NBTTagCompound) {} 126 127 /** 128 * (abstract) Protected helper method to write subclass entity data to NBT. 129 */ 130 protected void writeEntityToNBT(NBTTagCompound par1NBTTagCompound) {} 131 132 @SideOnly(Side.CLIENT) 133 134 /** 135 * Checks using a Vec3d to determine if this entity is within range of that vector to be rendered. Args: vec3D 136 */ 137 public boolean isInRangeToRenderVec3D(Vec3 par1Vec3) 138 { 139 return this.lightningState >= 0; 140 } 141 }