package core;

import entity.solidObject;

//this clase define a rectangle in Cartesian coordinate

public class Rect {

public int x1,x2,y1,y2,width,height;

public solidObject owner;

public Rect(int x1, int y1, int width, int height){

this.x1 = x1;

this.y1 = y1;

this.width = width;

this.height = height;

x2 = x1 + width - 1;

y2 = y1 - height + 1;

}

public void setOrigin(int x1, int y1){

this.x1 = x1;

this.y1 = y1;

x2 = x1 + width - 1;

y2 = y1 - height + 1;

}

public boolean intersect(Rect r){

return !(x1 > r.x2 || r.x1 > x2 || y2 > r.y1 || r.y2 > y1);

}

public boolean contains(int x, int y){

return x >= x1 && x <=x2 && y <= y1 && y >= y2;

}

public void expand(int r){

x1-=r;

x2+=r;

y1+=r;

y2-=r;

width+=2*r;

height+=2*r;

}

public void shrink(int r){

x1+=r;

x2-=r;

y1-=r;

y2+=r;

width-=2*r;

height-=2*r;

}

public String toString(){

return x1 + " " + y1 + " " + width + " " + height;

}

}