package ceccs;

import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;

public class Shootable extends Circle {
    RunNGunApp app;
    double x, y, vx, vy, size;
    double health;

    Shootable(RunNGunApp app){
        this.app = app;
        size = 10;
        setRadius(size);
        health = 2;
        setFill(Color.CYAN);
        app.motionPane.getChildren().add(this);
    }

    void setPosition(double x, double y){
        this.x = x;
        this.y = y;
        updateGraphics();
    }

    void setVelocity(double vx, double vy){
        this.vx = vx;
        this.vy = vy;
    }

    void updatePhysics(){
        x += vx;
        y += vy;
        checkCollision();
    }

    void checkCollision(){
        for (int i = 0; i < app.projectiles.size(); i++) {
            Projectile p = app.projectiles.get(i);
            if(RunNGunApp.collisionCheckCircles(this, p)) {
                //temporary do something cooler
                size += 10;
                p.destroy();
                i--;
            }
        }
    }

    void updateGraphics(){
        setLayoutX(x);
        setLayoutY(y);
        setRadius(size);
    }

}

    ...

    //at top
    Shootable testTarget;

    ...

    //new method added at bottom for collision checks
    public static boolean collisionCheckCircles(Circle c1, Circle c2){

        double dx = c2.getLayoutX() - c1.getLayoutX();
        double dy = c2.getLayoutY() - c1.getLayoutY();
        double distSqr = dx*dx + dy*dy;
        double radSum = c1.getRadius() + c2.getRadius();
        double radSumSqr = radSum * radSum;

        if(distSqr < radSumSqr) {
            return true; //collision detected
        } else {
            return false;
        }
    }

...
   //loops were added to the update methods
    void updatePhysics(){
	...
	//at bottom - updates for test target
        app.testTarget.updatePhysics();
    }

    void updateGraphics(){
 	...
	//at bottom - updates for test target
        app.testTarget.updateGraphics();
    }

...

    //new method
    void destroy(){
        app.motionPane.getChildren().remove(this);
        app.projectiles.remove(this);
    }