package net.minecraft.entity.projectile; import cpw.mods.fml.relauncher.Side; import cpw.mods.fml.relauncher.SideOnly; import java.util.List; import net.minecraft.entity.Entity; import net.minecraft.entity.EntityLiving; import net.minecraft.nbt.NBTTagCompound; import net.minecraft.nbt.NBTTagDouble; import net.minecraft.nbt.NBTTagList; import net.minecraft.util.AxisAlignedBB; import net.minecraft.util.DamageSource; import net.minecraft.util.MathHelper; import net.minecraft.util.MovingObjectPosition; import net.minecraft.util.Vec3; import net.minecraft.world.World; public abstract class EntityFireball extends Entity { private int xTile = -1; private int yTile = -1; private int zTile = -1; private int inTile = 0; private boolean inGround = false; public EntityLiving shootingEntity; private int ticksAlive; private int ticksInAir = 0; public double accelerationX; public double accelerationY; public double accelerationZ; public EntityFireball(World par1World) { super(par1World); this.setSize(1.0F, 1.0F); } protected void entityInit() {} @SideOnly(Side.CLIENT) /** * Checks if the entity is in range to render by using the past in distance and comparing it to its average edge * length * 64 * renderDistanceWeight Args: distance */ public boolean isInRangeToRenderDist(double par1) { double var3 = this.boundingBox.getAverageEdgeLength() * 4.0D; var3 *= 64.0D; return par1 < var3 * var3; } public EntityFireball(World par1World, double par2, double par4, double par6, double par8, double par10, double par12) { super(par1World); this.setSize(1.0F, 1.0F); this.setLocationAndAngles(par2, par4, par6, this.rotationYaw, this.rotationPitch); this.setPosition(par2, par4, par6); double var14 = (double)MathHelper.sqrt_double(par8 * par8 + par10 * par10 + par12 * par12); this.accelerationX = par8 / var14 * 0.1D; this.accelerationY = par10 / var14 * 0.1D; this.accelerationZ = par12 / var14 * 0.1D; } public EntityFireball(World par1World, EntityLiving par2EntityLiving, double par3, double par5, double par7) { super(par1World); this.shootingEntity = par2EntityLiving; this.setSize(1.0F, 1.0F); this.setLocationAndAngles(par2EntityLiving.posX, par2EntityLiving.posY, par2EntityLiving.posZ, par2EntityLiving.rotationYaw, par2EntityLiving.rotationPitch); this.setPosition(this.posX, this.posY, this.posZ); this.yOffset = 0.0F; this.motionX = this.motionY = this.motionZ = 0.0D; par3 += this.rand.nextGaussian() * 0.4D; par5 += this.rand.nextGaussian() * 0.4D; par7 += this.rand.nextGaussian() * 0.4D; double var9 = (double)MathHelper.sqrt_double(par3 * par3 + par5 * par5 + par7 * par7); this.accelerationX = par3 / var9 * 0.1D; this.accelerationY = par5 / var9 * 0.1D; this.accelerationZ = par7 / var9 * 0.1D; } /** * Called to update the entity's position/logic. */ public void onUpdate() { if (!this.worldObj.isRemote && (this.shootingEntity != null && this.shootingEntity.isDead || !this.worldObj.blockExists((int)this.posX, (int)this.posY, (int)this.posZ))) { this.setDead(); } else { super.onUpdate(); this.setFire(1); if (this.inGround) { int var1 = this.worldObj.getBlockId(this.xTile, this.yTile, this.zTile); if (var1 == this.inTile) { ++this.ticksAlive; if (this.ticksAlive == 600) { this.setDead(); } return; } this.inGround = false; this.motionX *= (double)(this.rand.nextFloat() * 0.2F); this.motionY *= (double)(this.rand.nextFloat() * 0.2F); this.motionZ *= (double)(this.rand.nextFloat() * 0.2F); this.ticksAlive = 0; this.ticksInAir = 0; } else { ++this.ticksInAir; } Vec3 var15 = this.worldObj.getWorldVec3Pool().getVecFromPool(this.posX, this.posY, this.posZ); Vec3 var2 = this.worldObj.getWorldVec3Pool().getVecFromPool(this.posX + this.motionX, this.posY + this.motionY, this.posZ + this.motionZ); MovingObjectPosition var3 = this.worldObj.rayTraceBlocks(var15, var2); var15 = this.worldObj.getWorldVec3Pool().getVecFromPool(this.posX, this.posY, this.posZ); var2 = this.worldObj.getWorldVec3Pool().getVecFromPool(this.posX + this.motionX, this.posY + this.motionY, this.posZ + this.motionZ); if (var3 != null) { var2 = this.worldObj.getWorldVec3Pool().getVecFromPool(var3.hitVec.xCoord, var3.hitVec.yCoord, var3.hitVec.zCoord); } Entity var4 = null; List var5 = this.worldObj.getEntitiesWithinAABBExcludingEntity(this, this.boundingBox.addCoord(this.motionX, this.motionY, this.motionZ).expand(1.0D, 1.0D, 1.0D)); double var6 = 0.0D; for (int var8 = 0; var8 < var5.size(); ++var8) { Entity var9 = (Entity)var5.get(var8); if (var9.canBeCollidedWith() && (!var9.isEntityEqual(this.shootingEntity) || this.ticksInAir >= 25)) { float var10 = 0.3F; AxisAlignedBB var11 = var9.boundingBox.expand((double)var10, (double)var10, (double)var10); MovingObjectPosition var12 = var11.calculateIntercept(var15, var2); if (var12 != null) { double var13 = var15.distanceTo(var12.hitVec); if (var13 < var6 || var6 == 0.0D) { var4 = var9; var6 = var13; } } } } if (var4 != null) { var3 = new MovingObjectPosition(var4); } if (var3 != null) { this.onImpact(var3); } this.posX += this.motionX; this.posY += this.motionY; this.posZ += this.motionZ; float var16 = MathHelper.sqrt_double(this.motionX * this.motionX + this.motionZ * this.motionZ); this.rotationYaw = (float)(Math.atan2(this.motionZ, this.motionX) * 180.0D / Math.PI) + 90.0F; for (this.rotationPitch = (float)(Math.atan2((double)var16, this.motionY) * 180.0D / Math.PI) - 90.0F; this.rotationPitch - this.prevRotationPitch < -180.0F; this.prevRotationPitch -= 360.0F) { ; } while (this.rotationPitch - this.prevRotationPitch >= 180.0F) { this.prevRotationPitch += 360.0F; } while (this.rotationYaw - this.prevRotationYaw < -180.0F) { this.prevRotationYaw -= 360.0F; } while (this.rotationYaw - this.prevRotationYaw >= 180.0F) { this.prevRotationYaw += 360.0F; } this.rotationPitch = this.prevRotationPitch + (this.rotationPitch - this.prevRotationPitch) * 0.2F; this.rotationYaw = this.prevRotationYaw + (this.rotationYaw - this.prevRotationYaw) * 0.2F; float var17 = this.getMotionFactor(); if (this.isInWater()) { for (int var19 = 0; var19 < 4; ++var19) { float var18 = 0.25F; this.worldObj.spawnParticle("bubble", this.posX - this.motionX * (double)var18, this.posY - this.motionY * (double)var18, this.posZ - this.motionZ * (double)var18, this.motionX, this.motionY, this.motionZ); } var17 = 0.8F; } this.motionX += this.accelerationX; this.motionY += this.accelerationY; this.motionZ += this.accelerationZ; this.motionX *= (double)var17; this.motionY *= (double)var17; this.motionZ *= (double)var17; this.worldObj.spawnParticle("smoke", this.posX, this.posY + 0.5D, this.posZ, 0.0D, 0.0D, 0.0D); this.setPosition(this.posX, this.posY, this.posZ); } } /** * Return the motion factor for this projectile. The factor is multiplied by the original motion. */ protected float getMotionFactor() { return 0.95F; } /** * Called when this EntityFireball hits a block or entity. */ protected abstract void onImpact(MovingObjectPosition var1); /** * (abstract) Protected helper method to write subclass entity data to NBT. */ public void writeEntityToNBT(NBTTagCompound par1NBTTagCompound) { par1NBTTagCompound.setShort("xTile", (short)this.xTile); par1NBTTagCompound.setShort("yTile", (short)this.yTile); par1NBTTagCompound.setShort("zTile", (short)this.zTile); par1NBTTagCompound.setByte("inTile", (byte)this.inTile); par1NBTTagCompound.setByte("inGround", (byte)(this.inGround ? 1 : 0)); par1NBTTagCompound.setTag("direction", this.newDoubleNBTList(new double[] {this.motionX, this.motionY, this.motionZ})); } /** * (abstract) Protected helper method to read subclass entity data from NBT. */ public void readEntityFromNBT(NBTTagCompound par1NBTTagCompound) { this.xTile = par1NBTTagCompound.getShort("xTile"); this.yTile = par1NBTTagCompound.getShort("yTile"); this.zTile = par1NBTTagCompound.getShort("zTile"); this.inTile = par1NBTTagCompound.getByte("inTile") & 255; this.inGround = par1NBTTagCompound.getByte("inGround") == 1; if (par1NBTTagCompound.hasKey("direction")) { NBTTagList var2 = par1NBTTagCompound.getTagList("direction"); this.motionX = ((NBTTagDouble)var2.tagAt(0)).data; this.motionY = ((NBTTagDouble)var2.tagAt(1)).data; this.motionZ = ((NBTTagDouble)var2.tagAt(2)).data; } else { this.setDead(); } } /** * Returns true if other Entities should be prevented from moving through this Entity. */ public boolean canBeCollidedWith() { return true; } public float getCollisionBorderSize() { return 1.0F; } /** * Called when the entity is attacked. */ public boolean attackEntityFrom(DamageSource par1DamageSource, int par2) { if (this.isEntityInvulnerable()) { return false; } else { this.setBeenAttacked(); if (par1DamageSource.getEntity() != null) { Vec3 var3 = par1DamageSource.getEntity().getLookVec(); if (var3 != null) { this.motionX = var3.xCoord; this.motionY = var3.yCoord; this.motionZ = var3.zCoord; this.accelerationX = this.motionX * 0.1D; this.accelerationY = this.motionY * 0.1D; this.accelerationZ = this.motionZ * 0.1D; } if (par1DamageSource.getEntity() instanceof EntityLiving) { this.shootingEntity = (EntityLiving)par1DamageSource.getEntity(); } return true; } else { return false; } } } @SideOnly(Side.CLIENT) public float getShadowSize() { return 0.0F; } /** * Gets how bright this entity is. */ public float getBrightness(float par1) { return 1.0F; } @SideOnly(Side.CLIENT) public int getBrightnessForRender(float par1) { return 15728880; } }