public boolean intersects(Collider c, boolean flag) {
boolean colliding = false;
if (c.getLayer() != layer) return false;
Vec2[] vertices = {
pos,
Vec2.add(pos, new Vec2(0, size.y())),
Vec2.add(pos, size),
Vec2.add(pos, new Vec2(size.x(), 0))
};
if (c instanceof QuadCollider) {
QuadCollider qc = (QuadCollider) c;
if (!flag && qc.intersects(this, true)) return true;
for (int i = 0; i < vertices.length; i++) {
float x = vertices[i].x();
float y = vertices[i].y();
if (x >= qc.bottomLeft().x()
&& x <= qc.topRight().x()
&& y <= qc.topRight().y()
&& y >= qc.bottomLeft().y()) {
colliding = true;
break;
}
}
} else if (c instanceof CircleCollider) {
CircleCollider cc = (CircleCollider) c;
Vec2 distV = Vec2.sub(center, cc.getPos());
Vec2 rad = Vec2.mult(distV, Vec2.REV);
rad.normalize();
rad.mult(new Vec2(cc.getR(), cc.getR()));
distV.add(rad);
distV.add(center);
if (distV.x() >= bottomLeft().x()
&& distV.x() <= topRight().x()
&& distV.y() >= bottomLeft().y()
&& distV.y() <= topRight().y()) {
colliding = true;
} else if (cc.getPos().x() >= bottomLeft().x()
&& cc.getPos().x() <= topRight().x()
&& cc.getPos().y() >= bottomLeft().y()
&& cc.getPos().y() <= topRight().y()) colliding = true;
}
return colliding;
}
@Override
public void move(Vec2 delta) {
this.pos.add(delta);
center = Vec2.add(pos, Vec2.div(size, new Vec2(2, 2)));
}
public Vec2 topRight() {
return Vec2.add(pos, size);
}
public QuadCollider(Vec2 pos, Vec2 size) {
this.pos = pos;
this.size = size;
center = Vec2.add(pos, Vec2.div(size, new Vec2(2, 2)));
}