BiomesOPlenty/common/biomesoplenty/entities/EntityWasp.java

package biomesoplenty.entities;

import net.minecraft.block.Block;
import net.minecraft.entity.Entity;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.monster.EntityMob;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.util.DamageSource;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;

public class EntityWasp extends EntityFlyingMob
{
    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 EntityWasp(World world)
    {
        super(world); 
        this.setSize(1.0F, 1.0F);
    }
    
    @Override
    protected void applyEntityAttributes()
    {
        super.applyEntityAttributes();
        this.getEntityAttribute(SharedMonsterAttributes.attackDamage).setAttribute(2.5D);
    }
    
    @Override
    protected void updateEntityActionState()
    {
        if (!this.worldObj.isRemote && this.worldObj.difficultySetting == 0)
        {
            this.setDead();
        }

        this.despawnEntity();
        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) * 4.0F);
            this.waypointY = this.posY + (double)((this.rand.nextFloat() * 2.0F - 1.0F) * 4.0F);
            this.waypointZ = this.posZ + (double)((this.rand.nextFloat() * 2.0F - 1.0F) * 4.0F);
        }

        if (this.courseChangeCooldown-- <= 0)
        {
            this.courseChangeCooldown += this.rand.nextInt(2) + 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) - (this.posY);
            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))
            {
                this.waypointX = targetedEntity.posX;
                this.waypointY = targetedEntity.posY;
                this.waypointZ = targetedEntity.posZ;
                
                float f1 = this.targetedEntity.getDistanceToEntity(this);

                this.attackEntity(this.targetedEntity, f1);
            }
        }
        else
        {
            this.renderYawOffset = this.rotationYaw = -((float)Math.atan2(this.motionX, this.motionZ)) * 180.0F / (float)Math.PI;
        }
    }

    private boolean isCourseTraversable(double par1, double par3, double par5, double par7)
    {
        double d4 = (this.waypointX - this.posX) / par7;
        double d5 = (this.waypointY - this.posY) / par7;
        double d6 = (this.waypointZ - this.posZ) / par7;
        AxisAlignedBB axisalignedbb = this.boundingBox.copy();

        for (int i = 1; (double)i < par7; ++i)
        {
            axisalignedbb.offset(d4, d5, d6);

            if (!this.worldObj.getCollidingBoundingBoxes(this, axisalignedbb).isEmpty())
            {
                return false;
            }
        }

        return true;
    }
    
    @Override
    protected String getLivingSound()
    {
        return "biomesoplenty:mob.wasp.say";
    }

    @Override
    protected String getHurtSound()
    {
        return "biomesoplenty:mob.wasp.hurt";
    }

    @Override
    protected String getDeathSound()
    {
        return "biomesoplenty:mob.wasp.hurt";
    }
}