package it.marteEngine.test.tank;
import it.marteEngine.ME;
import it.marteEngine.ResourceManager;
import it.marteEngine.entity.Entity;
import org.newdawn.slick.GameContainer;
import org.newdawn.slick.Input;
import org.newdawn.slick.SlickException;
/**
* Placed on top of a Tank, let it to fire Missiles {@link Missile}
*
* @author Gornova
*/
public class TankTurret extends Entity {
private static final String FIRE = "fire";
// parent is Tank reference
private Tank parent;
public TankTurret(Tank parent) {
super(parent.x, parent.y);
// position turret on top of parent position
this.parent = parent;
this.setGraphic(ResourceManager.getSpriteSheet("tank")
.getSubImage(2, 0));
this.setCentered(true);
define(FIRE, Input.MOUSE_LEFT_BUTTON);
}
@Override
public void update(GameContainer container, int delta)
throws SlickException {
// set turret position to parent
x = parent.x;
y = parent.y;
// calculate heading of turret
Input input = container.getInput();
float mx = input.getMouseX();
float my = input.getMouseY();
// TODO Going to add the offset here! HACK
// mx -= 20;
// my -= 15;
angle = (int) calculateAngle(x, y, mx, my);
// add new Missile when player fire
if (check(FIRE)) {
Missile m = new Missile(x, y, angle);
m.setCentered(true);
ME.world.add(m);
}
super.update(container, delta);
}
}