package net.minecraft.entity.projectile; import cpw.mods.fml.relauncher.Side; import cpw.mods.fml.relauncher.SideOnly; import java.util.List; import net.minecraft.block.Block; import net.minecraft.block.material.Material; 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.DamageSource; import net.minecraft.util.MathHelper; import net.minecraft.util.MovingObjectPosition; 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 p_i1753_1_) { super(p_i1753_1_); this.renderDistanceWeight = 10.0D; this.setSize(0.5F, 0.5F); } public EntityArrow(World p_i1754_1_, double p_i1754_2_, double p_i1754_4_, double p_i1754_6_) { super(p_i1754_1_); this.renderDistanceWeight = 10.0D; this.setSize(0.5F, 0.5F); this.setPosition(p_i1754_2_, p_i1754_4_, p_i1754_6_); this.yOffset = 0.0F; } public EntityArrow(World p_i1755_1_, EntityLivingBase p_i1755_2_, EntityLivingBase p_i1755_3_, float p_i1755_4_, float p_i1755_5_) { super(p_i1755_1_); 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 d0 = p_i1755_3_.posX - p_i1755_2_.posX; double d1 = p_i1755_3_.boundingBox.minY + (double)(p_i1755_3_.height / 3.0F) - this.posY; double d2 = p_i1755_3_.posZ - p_i1755_2_.posZ; double d3 = (double)MathHelper.sqrt_double(d0 * d0 + d2 * d2); if (d3 >= 1.0E-7D) { float f2 = (float)(Math.atan2(d2, d0) * 180.0D / Math.PI) - 90.0F; float f3 = (float)(-(Math.atan2(d1, d3) * 180.0D / Math.PI)); double d4 = d0 / d3; double d5 = d2 / d3; this.setLocationAndAngles(p_i1755_2_.posX + d4, this.posY, p_i1755_2_.posZ + d5, f2, f3); this.yOffset = 0.0F; float f4 = (float)d3 * 0.2F; this.setThrowableHeading(d0, d1 + (double)f4, d2, p_i1755_4_, p_i1755_5_); } } public EntityArrow(World p_i1756_1_, EntityLivingBase p_i1756_2_, float p_i1756_3_) { super(p_i1756_1_); 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.yOffset = 0.0F; 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 f2 = 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)f2; p_70186_3_ /= (double)f2; p_70186_5_ /= (double)f2; 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 f3 = 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)f3) * 180.0D / Math.PI); this.ticksInGround = 0; } /** * Sets the position and rotation. Only difference from the other one is no bounding on the rotation. Args: posX, * posY, posZ, yaw, pitch */ @SideOnly(Side.CLIENT) public void setPositionAndRotation2(double x, double y, double z, float yaw, float pitch, int rotationIncrements) { this.setPosition(x, y, z); this.setRotation(yaw, pitch); } /** * Sets the velocity to the args. Args: x, y, z */ @SideOnly(Side.CLIENT) public void setVelocity(double x, double y, double z) { this.motionX = x; this.motionY = y; this.motionZ = z; if (this.prevRotationPitch == 0.0F && this.prevRotationYaw == 0.0F) { float f = MathHelper.sqrt_double(x * x + z * z); this.prevRotationYaw = this.rotationYaw = (float)(Math.atan2(x, z) * 180.0D / Math.PI); this.prevRotationPitch = this.rotationPitch = (float)(Math.atan2(y, (double)f) * 180.0D / Math.PI); this.prevRotationPitch = this.rotationPitch; this.prevRotationYaw = this.rotationYaw; this.setLocationAndAngles(this.posX, this.posY, this.posZ, this.rotationYaw, this.rotationPitch); 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 f = 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)f) * 180.0D / Math.PI); } Block block = this.worldObj.getBlock(this.field_145791_d, this.field_145792_e, this.field_145789_f); if (block.getMaterial() != Material.air) { block.setBlockBoundsBasedOnState(this.worldObj, this.field_145791_d, this.field_145792_e, this.field_145789_f); AxisAlignedBB axisalignedbb = block.getCollisionBoundingBoxFromPool(this.worldObj, this.field_145791_d, this.field_145792_e, this.field_145789_f); if (axisalignedbb != null && axisalignedbb.isVecInside(Vec3.createVectorHelper(this.posX, this.posY, this.posZ))) { this.inGround = true; } } if (this.arrowShake > 0) { --this.arrowShake; } if (this.inGround) { int j = this.worldObj.getBlockMetadata(this.field_145791_d, this.field_145792_e, this.field_145789_f); if (block == this.field_145790_g && j == 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 vec31 = Vec3.createVectorHelper(this.posX, this.posY, this.posZ); Vec3 vec3 = Vec3.createVectorHelper(this.posX + this.motionX, this.posY + this.motionY, this.posZ + this.motionZ); MovingObjectPosition movingobjectposition = this.worldObj.rayTraceBlocks(vec31, vec3, false, true, false); vec31 = Vec3.createVectorHelper(this.posX, this.posY, this.posZ); vec3 = Vec3.createVectorHelper(this.posX + this.motionX, this.posY + this.motionY, this.posZ + this.motionZ); if (movingobjectposition != null) { vec3 = Vec3.createVectorHelper(movingobjectposition.hitVec.xCoord, movingobjectposition.hitVec.yCoord, movingobjectposition.hitVec.zCoord); } Entity entity = null; List list = this.worldObj.getEntitiesWithinAABBExcludingEntity(this, this.boundingBox.addCoord(this.motionX, this.motionY, this.motionZ).expand(1.0D, 1.0D, 1.0D)); double d0 = 0.0D; int i; float f1; for (i = 0; i < list.size(); ++i) { Entity entity1 = (Entity)list.get(i); if (entity1.canBeCollidedWith() && (entity1 != this.shootingEntity || this.ticksInAir >= 5)) { f1 = 0.3F; AxisAlignedBB axisalignedbb1 = entity1.boundingBox.expand((double)f1, (double)f1, (double)f1); MovingObjectPosition movingobjectposition1 = axisalignedbb1.calculateIntercept(vec31, vec3); if (movingobjectposition1 != null) { double d1 = vec31.distanceTo(movingobjectposition1.hitVec); if (d1 < d0 || d0 == 0.0D) { entity = entity1; d0 = d1; } } } } if (entity != null) { movingobjectposition = new MovingObjectPosition(entity); } if (movingobjectposition != null && movingobjectposition.entityHit != null && movingobjectposition.entityHit instanceof EntityPlayer) { EntityPlayer entityplayer = (EntityPlayer)movingobjectposition.entityHit; if (entityplayer.capabilities.disableDamage || this.shootingEntity instanceof EntityPlayer && !((EntityPlayer)this.shootingEntity).canAttackPlayer(entityplayer)) { movingobjectposition = null; } } float f2; float f4; if (movingobjectposition != null) { if (movingobjectposition.entityHit != null) { f2 = MathHelper.sqrt_double(this.motionX * this.motionX + this.motionY * this.motionY + this.motionZ * this.motionZ); int k = MathHelper.ceiling_double_int((double)f2 * this.damage); if (this.getIsCritical()) { k += this.rand.nextInt(k / 2 + 2); } DamageSource damagesource = null; if (this.shootingEntity == null) { damagesource = DamageSource.causeArrowDamage(this, this); } else { damagesource = DamageSource.causeArrowDamage(this, this.shootingEntity); } if (this.isBurning() && !(movingobjectposition.entityHit instanceof EntityEnderman)) { movingobjectposition.entityHit.setFire(5); } if (movingobjectposition.entityHit.attackEntityFrom(damagesource, (float)k)) { if (movingobjectposition.entityHit instanceof EntityLivingBase) { EntityLivingBase entitylivingbase = (EntityLivingBase)movingobjectposition.entityHit; if (!this.worldObj.isRemote) { entitylivingbase.setArrowCountInEntity(entitylivingbase.getArrowCountInEntity() + 1); } if (this.knockbackStrength > 0) { f4 = MathHelper.sqrt_double(this.motionX * this.motionX + this.motionZ * this.motionZ); if (f4 > 0.0F) { movingobjectposition.entityHit.addVelocity(this.motionX * (double)this.knockbackStrength * 0.6000000238418579D / (double)f4, 0.1D, this.motionZ * (double)this.knockbackStrength * 0.6000000238418579D / (double)f4); } } if (this.shootingEntity != null && this.shootingEntity instanceof EntityLivingBase) { EnchantmentHelper.func_151384_a(entitylivingbase, this.shootingEntity); EnchantmentHelper.func_151385_b((EntityLivingBase)this.shootingEntity, entitylivingbase); } if (this.shootingEntity != null && movingobjectposition.entityHit != this.shootingEntity && movingobjectposition.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 (!(movingobjectposition.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 { this.field_145791_d = movingobjectposition.blockX; this.field_145792_e = movingobjectposition.blockY; this.field_145789_f = movingobjectposition.blockZ; this.field_145790_g = this.worldObj.getBlock(this.field_145791_d, this.field_145792_e, this.field_145789_f); this.inData = this.worldObj.getBlockMetadata(this.field_145791_d, this.field_145792_e, this.field_145789_f); this.motionX = (double)((float)(movingobjectposition.hitVec.xCoord - this.posX)); this.motionY = (double)((float)(movingobjectposition.hitVec.yCoord - this.posY)); this.motionZ = (double)((float)(movingobjectposition.hitVec.zCoord - this.posZ)); f2 = MathHelper.sqrt_double(this.motionX * this.motionX + this.motionY * this.motionY + this.motionZ * this.motionZ); this.posX -= this.motionX / (double)f2 * 0.05000000074505806D; this.posY -= this.motionY / (double)f2 * 0.05000000074505806D; this.posZ -= this.motionZ / (double)f2 * 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, this.field_145791_d, this.field_145792_e, this.field_145789_f, this); } } } if (this.getIsCritical()) { for (i = 0; i < 4; ++i) { this.worldObj.spawnParticle("crit", this.posX + this.motionX * (double)i / 4.0D, this.posY + this.motionY * (double)i / 4.0D, this.posZ + this.motionZ * (double)i / 4.0D, -this.motionX, -this.motionY + 0.2D, -this.motionZ); } } this.posX += this.motionX; this.posY += this.motionY; this.posZ += this.motionZ; f2 = 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)f2) * 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; float f3 = 0.99F; f1 = 0.05F; if (this.isInWater()) { for (int l = 0; l < 4; ++l) { f4 = 0.25F; this.worldObj.spawnParticle("bubble", this.posX - this.motionX * (double)f4, this.posY - this.motionY * (double)f4, this.posZ - this.motionZ * (double)f4, this.motionX, this.motionY, this.motionZ); } f3 = 0.8F; } if (this.isWet()) { this.extinguish(); } this.motionX *= (double)f3; this.motionY *= (double)f3; this.motionZ *= (double)f3; this.motionY -= (double)f1; 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); tagCompound.setByte("inTile", (byte)Block.getIdFromBlock(this.field_145790_g)); 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"); 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 flag = this.canBePickedUp == 1 || this.canBePickedUp == 2 && entityIn.capabilities.isCreativeMode; if (this.canBePickedUp == 1 && !entityIn.inventory.addItemStackToInventory(new ItemStack(Items.arrow, 1))) { flag = false; } if (flag) { 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; } @SideOnly(Side.CLIENT) public float getShadowSize() { return 0.0F; } 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 b0 = this.dataWatcher.getWatchableObjectByte(16); if (p_70243_1_) { this.dataWatcher.updateObject(16, Byte.valueOf((byte)(b0 | 1))); } else { this.dataWatcher.updateObject(16, Byte.valueOf((byte)(b0 & -2))); } } /** * Whether the arrow has a stream of critical hit particles flying behind it. */ public boolean getIsCritical() { byte b0 = this.dataWatcher.getWatchableObjectByte(16); return (b0 & 1) != 0; } }