package net.minecraft.entity.projectile; import java.util.List; import net.minecraft.block.Block; import net.minecraft.block.material.Material; import net.minecraft.block.state.IBlockState; import net.minecraft.enchantment.EnchantmentHelper; import net.minecraft.entity.Entity; import net.minecraft.entity.EntityLivingBase; import net.minecraft.entity.IProjectile; import net.minecraft.entity.monster.EntityEnderman; import net.minecraft.entity.player.EntityPlayer; import net.minecraft.entity.player.EntityPlayerMP; import net.minecraft.init.Items; import net.minecraft.item.ItemStack; import net.minecraft.nbt.NBTTagCompound; import net.minecraft.network.play.server.S2BPacketChangeGameState; import net.minecraft.util.AxisAlignedBB; import net.minecraft.util.BlockPos; import net.minecraft.util.DamageSource; import net.minecraft.util.EnumParticleTypes; import net.minecraft.util.MathHelper; import net.minecraft.util.MovingObjectPosition; import net.minecraft.util.ResourceLocation; import net.minecraft.util.Vec3; import net.minecraft.world.World; public class EntityArrow extends Entity implements IProjectile { private int field_145791_d = -1; private int field_145792_e = -1; private int field_145789_f = -1; private Block field_145790_g; private int inData; private boolean inGround; /** 1 if the player can pick up the arrow */ public int canBePickedUp; /** Seems to be some sort of timer for animating an arrow. */ public int arrowShake; /** The owner of this arrow. */ public Entity shootingEntity; private int ticksInGround; private int ticksInAir; private double damage = 2.0D; /** The amount of knockback an arrow applies when it hits a mob. */ private int knockbackStrength; private static final String __OBFID = "CL_00001715"; public EntityArrow(World worldIn) { super(worldIn); this.renderDistanceWeight = 10.0D; this.setSize(0.5F, 0.5F); } public EntityArrow(World worldIn, double p_i1754_2_, double p_i1754_4_, double p_i1754_6_) { super(worldIn); this.renderDistanceWeight = 10.0D; this.setSize(0.5F, 0.5F); this.setPosition(p_i1754_2_, p_i1754_4_, p_i1754_6_); } public EntityArrow(World worldIn, EntityLivingBase p_i1755_2_, EntityLivingBase p_i1755_3_, float p_i1755_4_, float p_i1755_5_) { super(worldIn); this.renderDistanceWeight = 10.0D; this.shootingEntity = p_i1755_2_; if (p_i1755_2_ instanceof EntityPlayer) { this.canBePickedUp = 1; } this.posY = p_i1755_2_.posY + (double)p_i1755_2_.getEyeHeight() - 0.10000000149011612D; double var6 = p_i1755_3_.posX - p_i1755_2_.posX; double var8 = p_i1755_3_.getEntityBoundingBox().minY + (double)(p_i1755_3_.height / 3.0F) - this.posY; double var10 = p_i1755_3_.posZ - p_i1755_2_.posZ; double var12 = (double)MathHelper.sqrt_double(var6 * var6 + var10 * var10); if (var12 >= 1.0E-7D) { float var14 = (float)(Math.atan2(var10, var6) * 180.0D / Math.PI) - 90.0F; float var15 = (float)(-(Math.atan2(var8, var12) * 180.0D / Math.PI)); double var16 = var6 / var12; double var18 = var10 / var12; this.setLocationAndAngles(p_i1755_2_.posX + var16, this.posY, p_i1755_2_.posZ + var18, var14, var15); float var20 = (float)(var12 * 0.20000000298023224D); this.setThrowableHeading(var6, var8 + (double)var20, var10, p_i1755_4_, p_i1755_5_); } } public EntityArrow(World worldIn, EntityLivingBase p_i1756_2_, float p_i1756_3_) { super(worldIn); this.renderDistanceWeight = 10.0D; this.shootingEntity = p_i1756_2_; if (p_i1756_2_ instanceof EntityPlayer) { this.canBePickedUp = 1; } this.setSize(0.5F, 0.5F); this.setLocationAndAngles(p_i1756_2_.posX, p_i1756_2_.posY + (double)p_i1756_2_.getEyeHeight(), p_i1756_2_.posZ, p_i1756_2_.rotationYaw, p_i1756_2_.rotationPitch); this.posX -= (double)(MathHelper.cos(this.rotationYaw / 180.0F * (float)Math.PI) * 0.16F); this.posY -= 0.10000000149011612D; this.posZ -= (double)(MathHelper.sin(this.rotationYaw / 180.0F * (float)Math.PI) * 0.16F); this.setPosition(this.posX, this.posY, this.posZ); this.motionX = (double)(-MathHelper.sin(this.rotationYaw / 180.0F * (float)Math.PI) * MathHelper.cos(this.rotationPitch / 180.0F * (float)Math.PI)); this.motionZ = (double)(MathHelper.cos(this.rotationYaw / 180.0F * (float)Math.PI) * MathHelper.cos(this.rotationPitch / 180.0F * (float)Math.PI)); this.motionY = (double)(-MathHelper.sin(this.rotationPitch / 180.0F * (float)Math.PI)); this.setThrowableHeading(this.motionX, this.motionY, this.motionZ, p_i1756_3_ * 1.5F, 1.0F); } protected void entityInit() { this.dataWatcher.addObject(16, Byte.valueOf((byte)0)); } /** * Similar to setArrowHeading, it's point the throwable entity to a x, y, z direction. */ public void setThrowableHeading(double p_70186_1_, double p_70186_3_, double p_70186_5_, float p_70186_7_, float p_70186_8_) { float var9 = MathHelper.sqrt_double(p_70186_1_ * p_70186_1_ + p_70186_3_ * p_70186_3_ + p_70186_5_ * p_70186_5_); p_70186_1_ /= (double)var9; p_70186_3_ /= (double)var9; p_70186_5_ /= (double)var9; p_70186_1_ += this.rand.nextGaussian() * (double)(this.rand.nextBoolean() ? -1 : 1) * 0.007499999832361937D * (double)p_70186_8_; p_70186_3_ += this.rand.nextGaussian() * (double)(this.rand.nextBoolean() ? -1 : 1) * 0.007499999832361937D * (double)p_70186_8_; p_70186_5_ += this.rand.nextGaussian() * (double)(this.rand.nextBoolean() ? -1 : 1) * 0.007499999832361937D * (double)p_70186_8_; p_70186_1_ *= (double)p_70186_7_; p_70186_3_ *= (double)p_70186_7_; p_70186_5_ *= (double)p_70186_7_; this.motionX = p_70186_1_; this.motionY = p_70186_3_; this.motionZ = p_70186_5_; float var10 = MathHelper.sqrt_double(p_70186_1_ * p_70186_1_ + p_70186_5_ * p_70186_5_); this.prevRotationYaw = this.rotationYaw = (float)(Math.atan2(p_70186_1_, p_70186_5_) * 180.0D / Math.PI); this.prevRotationPitch = this.rotationPitch = (float)(Math.atan2(p_70186_3_, (double)var10) * 180.0D / Math.PI); this.ticksInGround = 0; } /** * Called to update the entity's position/logic. */ public void onUpdate() { super.onUpdate(); if (this.prevRotationPitch == 0.0F && this.prevRotationYaw == 0.0F) { float var1 = MathHelper.sqrt_double(this.motionX * this.motionX + this.motionZ * this.motionZ); this.prevRotationYaw = this.rotationYaw = (float)(Math.atan2(this.motionX, this.motionZ) * 180.0D / Math.PI); this.prevRotationPitch = this.rotationPitch = (float)(Math.atan2(this.motionY, (double)var1) * 180.0D / Math.PI); } BlockPos var18 = new BlockPos(this.field_145791_d, this.field_145792_e, this.field_145789_f); IBlockState var2 = this.worldObj.getBlockState(var18); Block var3 = var2.getBlock(); if (var3.getMaterial() != Material.air) { var3.setBlockBoundsBasedOnState(this.worldObj, var18); AxisAlignedBB var4 = var3.getCollisionBoundingBox(this.worldObj, var18, var2); if (var4 != null && var4.isVecInside(new Vec3(this.posX, this.posY, this.posZ))) { this.inGround = true; } } if (this.arrowShake > 0) { --this.arrowShake; } if (this.inGround) { int var20 = var3.getMetaFromState(var2); if (var3 == this.field_145790_g && var20 == this.inData) { ++this.ticksInGround; if (this.ticksInGround >= 1200) { this.setDead(); } } else { 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.ticksInGround = 0; this.ticksInAir = 0; } } else { ++this.ticksInAir; Vec3 var19 = new Vec3(this.posX, this.posY, this.posZ); Vec3 var5 = new Vec3(this.posX + this.motionX, this.posY + this.motionY, this.posZ + this.motionZ); MovingObjectPosition var6 = this.worldObj.rayTraceBlocks(var19, var5, false, true, false); var19 = new Vec3(this.posX, this.posY, this.posZ); var5 = new Vec3(this.posX + this.motionX, this.posY + this.motionY, this.posZ + this.motionZ); if (var6 != null) { var5 = new Vec3(var6.hitVec.xCoord, var6.hitVec.yCoord, var6.hitVec.zCoord); } Entity var7 = null; List var8 = this.worldObj.getEntitiesWithinAABBExcludingEntity(this, this.getEntityBoundingBox().addCoord(this.motionX, this.motionY, this.motionZ).expand(1.0D, 1.0D, 1.0D)); double var9 = 0.0D; int var11; float var13; for (var11 = 0; var11 < var8.size(); ++var11) { Entity var12 = (Entity)var8.get(var11); if (var12.canBeCollidedWith() && (var12 != this.shootingEntity || this.ticksInAir >= 5)) { var13 = 0.3F; AxisAlignedBB var14 = var12.getEntityBoundingBox().expand((double)var13, (double)var13, (double)var13); MovingObjectPosition var15 = var14.calculateIntercept(var19, var5); if (var15 != null) { double var16 = var19.distanceTo(var15.hitVec); if (var16 < var9 || var9 == 0.0D) { var7 = var12; var9 = var16; } } } } if (var7 != null) { var6 = new MovingObjectPosition(var7); } if (var6 != null && var6.entityHit != null && var6.entityHit instanceof EntityPlayer) { EntityPlayer var21 = (EntityPlayer)var6.entityHit; if (var21.capabilities.disableDamage || this.shootingEntity instanceof EntityPlayer && !((EntityPlayer)this.shootingEntity).canAttackPlayer(var21)) { var6 = null; } } float var22; float var25; float var29; if (var6 != null) { if (var6.entityHit != null) { var22 = MathHelper.sqrt_double(this.motionX * this.motionX + this.motionY * this.motionY + this.motionZ * this.motionZ); int var24 = MathHelper.ceiling_double_int((double)var22 * this.damage); if (this.getIsCritical()) { var24 += this.rand.nextInt(var24 / 2 + 2); } DamageSource var26; if (this.shootingEntity == null) { var26 = DamageSource.causeArrowDamage(this, this); } else { var26 = DamageSource.causeArrowDamage(this, this.shootingEntity); } if (this.isBurning() && !(var6.entityHit instanceof EntityEnderman)) { var6.entityHit.setFire(5); } if (var6.entityHit.attackEntityFrom(var26, (float)var24)) { if (var6.entityHit instanceof EntityLivingBase) { EntityLivingBase var27 = (EntityLivingBase)var6.entityHit; if (!this.worldObj.isRemote) { var27.setArrowCountInEntity(var27.getArrowCountInEntity() + 1); } if (this.knockbackStrength > 0) { var29 = MathHelper.sqrt_double(this.motionX * this.motionX + this.motionZ * this.motionZ); if (var29 > 0.0F) { var6.entityHit.addVelocity(this.motionX * (double)this.knockbackStrength * 0.6000000238418579D / (double)var29, 0.1D, this.motionZ * (double)this.knockbackStrength * 0.6000000238418579D / (double)var29); } } if (this.shootingEntity instanceof EntityLivingBase) { EnchantmentHelper.func_151384_a(var27, this.shootingEntity); EnchantmentHelper.func_151385_b((EntityLivingBase)this.shootingEntity, var27); } if (this.shootingEntity != null && var6.entityHit != this.shootingEntity && var6.entityHit instanceof EntityPlayer && this.shootingEntity instanceof EntityPlayerMP) { ((EntityPlayerMP)this.shootingEntity).playerNetServerHandler.sendPacket(new S2BPacketChangeGameState(6, 0.0F)); } } this.playSound("random.bowhit", 1.0F, 1.2F / (this.rand.nextFloat() * 0.2F + 0.9F)); if (!(var6.entityHit instanceof EntityEnderman)) { this.setDead(); } } else { this.motionX *= -0.10000000149011612D; this.motionY *= -0.10000000149011612D; this.motionZ *= -0.10000000149011612D; this.rotationYaw += 180.0F; this.prevRotationYaw += 180.0F; this.ticksInAir = 0; } } else { BlockPos var23 = var6.func_178782_a(); this.field_145791_d = var23.getX(); this.field_145792_e = var23.getY(); this.field_145789_f = var23.getZ(); var2 = this.worldObj.getBlockState(var23); this.field_145790_g = var2.getBlock(); this.inData = this.field_145790_g.getMetaFromState(var2); this.motionX = (double)((float)(var6.hitVec.xCoord - this.posX)); this.motionY = (double)((float)(var6.hitVec.yCoord - this.posY)); this.motionZ = (double)((float)(var6.hitVec.zCoord - this.posZ)); var25 = MathHelper.sqrt_double(this.motionX * this.motionX + this.motionY * this.motionY + this.motionZ * this.motionZ); this.posX -= this.motionX / (double)var25 * 0.05000000074505806D; this.posY -= this.motionY / (double)var25 * 0.05000000074505806D; this.posZ -= this.motionZ / (double)var25 * 0.05000000074505806D; this.playSound("random.bowhit", 1.0F, 1.2F / (this.rand.nextFloat() * 0.2F + 0.9F)); this.inGround = true; this.arrowShake = 7; this.setIsCritical(false); if (this.field_145790_g.getMaterial() != Material.air) { this.field_145790_g.onEntityCollidedWithBlock(this.worldObj, var23, var2, this); } } } if (this.getIsCritical()) { for (var11 = 0; var11 < 4; ++var11) { this.worldObj.spawnParticle(EnumParticleTypes.CRIT, this.posX + this.motionX * (double)var11 / 4.0D, this.posY + this.motionY * (double)var11 / 4.0D, this.posZ + this.motionZ * (double)var11 / 4.0D, -this.motionX, -this.motionY + 0.2D, -this.motionZ, new int[0]); } } this.posX += this.motionX; this.posY += this.motionY; this.posZ += this.motionZ; var22 = MathHelper.sqrt_double(this.motionX * this.motionX + this.motionZ * this.motionZ); this.rotationYaw = (float)(Math.atan2(this.motionX, this.motionZ) * 180.0D / Math.PI); for (this.rotationPitch = (float)(Math.atan2(this.motionY, (double)var22) * 180.0D / Math.PI); 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; var25 = 0.99F; var13 = 0.05F; if (this.isInWater()) { for (int var28 = 0; var28 < 4; ++var28) { var29 = 0.25F; this.worldObj.spawnParticle(EnumParticleTypes.WATER_BUBBLE, this.posX - this.motionX * (double)var29, this.posY - this.motionY * (double)var29, this.posZ - this.motionZ * (double)var29, this.motionX, this.motionY, this.motionZ, new int[0]); } var25 = 0.6F; } if (this.isWet()) { this.extinguish(); } this.motionX *= (double)var25; this.motionY *= (double)var25; this.motionZ *= (double)var25; this.motionY -= (double)var13; this.setPosition(this.posX, this.posY, this.posZ); this.doBlockCollisions(); } } /** * (abstract) Protected helper method to write subclass entity data to NBT. */ public void writeEntityToNBT(NBTTagCompound tagCompound) { tagCompound.setShort("xTile", (short)this.field_145791_d); tagCompound.setShort("yTile", (short)this.field_145792_e); tagCompound.setShort("zTile", (short)this.field_145789_f); tagCompound.setShort("life", (short)this.ticksInGround); ResourceLocation var2 = (ResourceLocation)Block.blockRegistry.getNameForObject(this.field_145790_g); tagCompound.setString("inTile", var2 == null ? "" : var2.toString()); tagCompound.setByte("inData", (byte)this.inData); tagCompound.setByte("shake", (byte)this.arrowShake); tagCompound.setByte("inGround", (byte)(this.inGround ? 1 : 0)); tagCompound.setByte("pickup", (byte)this.canBePickedUp); tagCompound.setDouble("damage", this.damage); } /** * (abstract) Protected helper method to read subclass entity data from NBT. */ public void readEntityFromNBT(NBTTagCompound tagCompund) { this.field_145791_d = tagCompund.getShort("xTile"); this.field_145792_e = tagCompund.getShort("yTile"); this.field_145789_f = tagCompund.getShort("zTile"); this.ticksInGround = tagCompund.getShort("life"); if (tagCompund.hasKey("inTile", 8)) { this.field_145790_g = Block.getBlockFromName(tagCompund.getString("inTile")); } else { this.field_145790_g = Block.getBlockById(tagCompund.getByte("inTile") & 255); } this.inData = tagCompund.getByte("inData") & 255; this.arrowShake = tagCompund.getByte("shake") & 255; this.inGround = tagCompund.getByte("inGround") == 1; if (tagCompund.hasKey("damage", 99)) { this.damage = tagCompund.getDouble("damage"); } if (tagCompund.hasKey("pickup", 99)) { this.canBePickedUp = tagCompund.getByte("pickup"); } else if (tagCompund.hasKey("player", 99)) { this.canBePickedUp = tagCompund.getBoolean("player") ? 1 : 0; } } /** * Called by a player entity when they collide with an entity */ public void onCollideWithPlayer(EntityPlayer entityIn) { if (!this.worldObj.isRemote && this.inGround && this.arrowShake <= 0) { boolean var2 = this.canBePickedUp == 1 || this.canBePickedUp == 2 && entityIn.capabilities.isCreativeMode; if (this.canBePickedUp == 1 && !entityIn.inventory.addItemStackToInventory(new ItemStack(Items.arrow, 1))) { var2 = false; } if (var2) { this.playSound("random.pop", 0.2F, ((this.rand.nextFloat() - this.rand.nextFloat()) * 0.7F + 1.0F) * 2.0F); entityIn.onItemPickup(this, 1); this.setDead(); } } } /** * returns if this entity triggers Block.onEntityWalking on the blocks they walk on. used for spiders and wolves to * prevent them from trampling crops */ protected boolean canTriggerWalking() { return false; } public void setDamage(double p_70239_1_) { this.damage = p_70239_1_; } public double getDamage() { return this.damage; } /** * Sets the amount of knockback the arrow applies when it hits a mob. */ public void setKnockbackStrength(int p_70240_1_) { this.knockbackStrength = p_70240_1_; } /** * If returns false, the item will not inflict any damage against entities. */ public boolean canAttackWithItem() { return false; } /** * Whether the arrow has a stream of critical hit particles flying behind it. */ public void setIsCritical(boolean p_70243_1_) { byte var2 = this.dataWatcher.getWatchableObjectByte(16); if (p_70243_1_) { this.dataWatcher.updateObject(16, Byte.valueOf((byte)(var2 | 1))); } else { this.dataWatcher.updateObject(16, Byte.valueOf((byte)(var2 & -2))); } } /** * Whether the arrow has a stream of critical hit particles flying behind it. */ public boolean getIsCritical() { byte var1 = this.dataWatcher.getWatchableObjectByte(16); return (var1 & 1) != 0; } }