package net.minecraft.entity.ai;
import net.minecraft.entity.EntityLiving;
import net.minecraft.util.MathHelper;
public class EntityMoveHelper
{
/** The EntityLiving that is being moved */
private EntityLiving entity;
private double posX;
private double posY;
private double posZ;
/** The speed at which the entity should move */
private float speed;
private boolean field_75643_f = false;
public EntityMoveHelper(EntityLiving par1EntityLiving)
{
this.entity = par1EntityLiving;
this.posX = par1EntityLiving.posX;
this.posY = par1EntityLiving.posY;
this.posZ = par1EntityLiving.posZ;
}
public boolean func_75640_a()
{
return this.field_75643_f;
}
public float getSpeed()
{
return this.speed;
}
/**
* Sets the speed and location to move to
*/
public void setMoveTo(double par1, double par3, double par5, float par7)
{
this.posX = par1;
this.posY = par3;
this.posZ = par5;
this.speed = par7;
this.field_75643_f = true;
}
public void onUpdateMoveHelper()
{
this.entity.setMoveForward(0.0F);
if (this.field_75643_f)
{
this.field_75643_f = false;
int var1 = MathHelper.floor_double(this.entity.boundingBox.minY + 0.5D);
double var2 = this.posX - this.entity.posX;
double var4 = this.posZ - this.entity.posZ;
double var6 = this.posY - (double)var1;
double var8 = var2 * var2 + var6 * var6 + var4 * var4;
if (var8 >= 2.500000277905201E-7D)
{
float var10 = (float)(Math.atan2(var4, var2) * 180.0D / Math.PI) - 90.0F;
this.entity.rotationYaw = this.func_75639_a(this.entity.rotationYaw, var10, 30.0F);
this.entity.setAIMoveSpeed(this.speed * this.entity.getSpeedModifier());
if (var6 > 0.0D && var2 * var2 + var4 * var4 < 1.0D)
{
this.entity.getJumpHelper().setJumping();
}
}
}
}
private float func_75639_a(float par1, float par2, float par3)
{
float var4 = MathHelper.wrapAngleTo180_float(par2 - par1);
if (var4 > par3)
{
var4 = par3;
}
if (var4 < -par3)
{
var4 = -par3;
}
return par1 + var4;
}
}