package net.minecraft.entity.monster; import cpw.mods.fml.relauncher.Side; import cpw.mods.fml.relauncher.SideOnly; import net.minecraft.entity.Entity; import net.minecraft.entity.EntityFlying; import net.minecraft.entity.SharedMonsterAttributes; import net.minecraft.entity.player.EntityPlayer; import net.minecraft.entity.projectile.EntityLargeFireball; import net.minecraft.init.Items; import net.minecraft.item.Item; import net.minecraft.nbt.NBTTagCompound; import net.minecraft.stats.AchievementList; import net.minecraft.util.AxisAlignedBB; import net.minecraft.util.DamageSource; import net.minecraft.util.MathHelper; import net.minecraft.util.Vec3; import net.minecraft.world.EnumDifficulty; import net.minecraft.world.World; public class EntityGhast extends EntityFlying implements IMob { public int courseChangeCooldown; public double waypointX; public double waypointY; public double waypointZ; private Entity targetedEntity; /** Cooldown time between target loss and new target aquirement. */ private int aggroCooldown; public int prevAttackCounter; public int attackCounter; /** The explosion radius of spawned fireballs. */ private int explosionStrength = 1; private static final String __OBFID = "CL_00001689"; public EntityGhast(World p_i1735_1_) { super(p_i1735_1_); this.setSize(4.0F, 4.0F); this.isImmuneToFire = true; this.experienceValue = 5; } @SideOnly(Side.CLIENT) public boolean func_110182_bF() { return this.dataWatcher.getWatchableObjectByte(16) != 0; } /** * Called when the entity is attacked. */ public boolean attackEntityFrom(DamageSource source, float amount) { if (this.isEntityInvulnerable()) { return false; } else if ("fireball".equals(source.getDamageType()) && source.getEntity() instanceof EntityPlayer) { super.attackEntityFrom(source, 1000.0F); ((EntityPlayer)source.getEntity()).triggerAchievement(AchievementList.ghast); return true; } else { return super.attackEntityFrom(source, amount); } } protected void entityInit() { super.entityInit(); this.dataWatcher.addObject(16, Byte.valueOf((byte)0)); } protected void applyEntityAttributes() { super.applyEntityAttributes(); this.getEntityAttribute(SharedMonsterAttributes.maxHealth).setBaseValue(10.0D); } protected void updateEntityActionState() { if (!this.worldObj.isRemote && this.worldObj.difficultySetting == EnumDifficulty.PEACEFUL) { this.setDead(); } this.despawnEntity(); this.prevAttackCounter = this.attackCounter; double d0 = this.waypointX - this.posX; double d1 = this.waypointY - this.posY; double d2 = this.waypointZ - this.posZ; double d3 = d0 * d0 + d1 * d1 + d2 * d2; if (d3 < 1.0D || d3 > 3600.0D) { this.waypointX = this.posX + (double)((this.rand.nextFloat() * 2.0F - 1.0F) * 16.0F); this.waypointY = this.posY + (double)((this.rand.nextFloat() * 2.0F - 1.0F) * 16.0F); this.waypointZ = this.posZ + (double)((this.rand.nextFloat() * 2.0F - 1.0F) * 16.0F); } if (this.courseChangeCooldown-- <= 0) { this.courseChangeCooldown += this.rand.nextInt(5) + 2; d3 = (double)MathHelper.sqrt_double(d3); if (this.isCourseTraversable(this.waypointX, this.waypointY, this.waypointZ, d3)) { this.motionX += d0 / d3 * 0.1D; this.motionY += d1 / d3 * 0.1D; this.motionZ += d2 / d3 * 0.1D; } else { this.waypointX = this.posX; this.waypointY = this.posY; this.waypointZ = this.posZ; } } if (this.targetedEntity != null && this.targetedEntity.isDead) { this.targetedEntity = null; } if (this.targetedEntity == null || this.aggroCooldown-- <= 0) { this.targetedEntity = this.worldObj.getClosestVulnerablePlayerToEntity(this, 100.0D); if (this.targetedEntity != null) { this.aggroCooldown = 20; } } double d4 = 64.0D; if (this.targetedEntity != null && this.targetedEntity.getDistanceSqToEntity(this) < d4 * d4) { double d5 = this.targetedEntity.posX - this.posX; double d6 = this.targetedEntity.boundingBox.minY + (double)(this.targetedEntity.height / 2.0F) - (this.posY + (double)(this.height / 2.0F)); double d7 = this.targetedEntity.posZ - this.posZ; this.renderYawOffset = this.rotationYaw = -((float)Math.atan2(d5, d7)) * 180.0F / (float)Math.PI; if (this.canEntityBeSeen(this.targetedEntity)) { if (this.attackCounter == 10) { this.worldObj.playAuxSFXAtEntity((EntityPlayer)null, 1007, (int)this.posX, (int)this.posY, (int)this.posZ, 0); } ++this.attackCounter; if (this.attackCounter == 20) { this.worldObj.playAuxSFXAtEntity((EntityPlayer)null, 1008, (int)this.posX, (int)this.posY, (int)this.posZ, 0); EntityLargeFireball entitylargefireball = new EntityLargeFireball(this.worldObj, this, d5, d6, d7); entitylargefireball.field_92057_e = this.explosionStrength; double d8 = 4.0D; Vec3 vec3 = this.getLook(1.0F); entitylargefireball.posX = this.posX + vec3.xCoord * d8; entitylargefireball.posY = this.posY + (double)(this.height / 2.0F) + 0.5D; entitylargefireball.posZ = this.posZ + vec3.zCoord * d8; this.worldObj.spawnEntityInWorld(entitylargefireball); this.attackCounter = -40; } } else if (this.attackCounter > 0) { --this.attackCounter; } } else { this.renderYawOffset = this.rotationYaw = -((float)Math.atan2(this.motionX, this.motionZ)) * 180.0F / (float)Math.PI; if (this.attackCounter > 0) { --this.attackCounter; } } if (!this.worldObj.isRemote) { byte b1 = this.dataWatcher.getWatchableObjectByte(16); byte b0 = (byte)(this.attackCounter > 10 ? 1 : 0); if (b1 != b0) { this.dataWatcher.updateObject(16, Byte.valueOf(b0)); } } } /** * True if the ghast has an unobstructed line of travel to the waypoint. */ private boolean isCourseTraversable(double p_70790_1_, double p_70790_3_, double p_70790_5_, double p_70790_7_) { double d4 = (this.waypointX - this.posX) / p_70790_7_; double d5 = (this.waypointY - this.posY) / p_70790_7_; double d6 = (this.waypointZ - this.posZ) / p_70790_7_; AxisAlignedBB axisalignedbb = this.boundingBox.copy(); for (int i = 1; (double)i < p_70790_7_; ++i) { axisalignedbb.offset(d4, d5, d6); if (!this.worldObj.getCollidingBoundingBoxes(this, axisalignedbb).isEmpty()) { return false; } } return true; } /** * Returns the sound this mob makes while it's alive. */ protected String getLivingSound() { return "mob.ghast.moan"; } /** * Returns the sound this mob makes when it is hurt. */ protected String getHurtSound() { return "mob.ghast.scream"; } /** * Returns the sound this mob makes on death. */ protected String getDeathSound() { return "mob.ghast.death"; } protected Item getDropItem() { return Items.gunpowder; } /** * Drop 0-2 items of this living's type */ protected void dropFewItems(boolean p_70628_1_, int p_70628_2_) { int j = this.rand.nextInt(2) + this.rand.nextInt(1 + p_70628_2_); int k; for (k = 0; k < j; ++k) { this.dropItem(Items.ghast_tear, 1); } j = this.rand.nextInt(3) + this.rand.nextInt(1 + p_70628_2_); for (k = 0; k < j; ++k) { this.dropItem(Items.gunpowder, 1); } } /** * Returns the volume for the sounds this mob makes. */ protected float getSoundVolume() { return 10.0F; } /** * Checks if the entity's current position is a valid location to spawn this entity. */ public boolean getCanSpawnHere() { return this.rand.nextInt(20) == 0 && super.getCanSpawnHere() && this.worldObj.difficultySetting != EnumDifficulty.PEACEFUL; } /** * Will return how many at most can spawn in a chunk at once. */ public int getMaxSpawnedInChunk() { return 1; } /** * (abstract) Protected helper method to write subclass entity data to NBT. */ public void writeEntityToNBT(NBTTagCompound tagCompound) { super.writeEntityToNBT(tagCompound); tagCompound.setInteger("ExplosionPower", this.explosionStrength); } /** * (abstract) Protected helper method to read subclass entity data from NBT. */ public void readEntityFromNBT(NBTTagCompound tagCompund) { super.readEntityFromNBT(tagCompund); if (tagCompund.hasKey("ExplosionPower", 99)) { this.explosionStrength = tagCompund.getInteger("ExplosionPower"); } } }