#pragma once
#include "CollideableBall.h"
#include "Box.h"
#include "Reflector.h"
#include "SlowDown.h"
#include "SpeedUp.h"
#include <cmath>

bool pointInBox(int px, int py, Box* box) {
    Point pos = box->GetPosition();
    int size = box->GetSize();
    return (px >= pos.X && px < pos.X + size && py >= pos.Y && py < pos.Y + size);
}
int pointDistance(int x1, int y1, int x2, int y2) {
    return sqrt((x2 - x1)*(x2 - x1) + (y2 - y1)*(y2 - y1));
}
void CollideableBall::UpdateWallCollisions(Vector screenSize) {
    if (position.X - radius < 0 || position.X + radius >= screenSize.X) speed.X *= -1;
    if (position.Y - radius < 0 || position.Y + radius >= screenSize.Y) speed.Y *= -1;
}

int CollideableBall::BoxCollision(void* object) {
    Box* obj = (Box*)object;
    Point pos = obj->GetPosition();
    int size = obj->GetSize();

    if (pointDistance(position.X, position.Y, pos.X + size / 2, pos.Y + size / 2) > (radius + size)* 2) return 0;

    // X collision
    if (pointInBox(position.X + radius, position.Y, obj)) return 1;
    if (pointInBox(position.X - radius, position.Y, obj)) return 1;

    // Y collision
    if (pointInBox(position.X, position.Y + radius, obj)) return 2;
    if (pointInBox(position.X, position.Y - radius, obj)) return 2;

    // Top left corner collision
    if (pointDistance(position.X, position.Y, pos.X, pos.Y) < radius) return 3;

    // Top right corner collision
    if (pointDistance(position.X, position.Y, pos.X + size, pos.Y) < radius) return 3;

    // Bottom left corner collision
    if (pointDistance(position.X, position.Y, pos.X, pos.Y + size) < radius) return 3;

    // Bottom right corner collision
    if (pointDistance(position.X, position.Y, pos.X + size, pos.Y + size) < radius) return 3;

    return 0;
}

void CollideableBall::UpdateCollisionReflector(Reflector* object) {
    int collide = BoxCollision(object);
    if (collide == 1 || collide == 3) speed.X *= -1;
    if (collide == 2 || collide == 3) speed.Y *= -1;
}

void CollideableBall::UpdateCollisionSlowDown(SlowDown* object) {
    if (BoxCollision(object)) {
        speed.X *= 0.95;
        speed.Y *= 0.95;
    }
}

void CollideableBall::UpdateCollisionSpeedUp(SpeedUp* object) {
    if (BoxCollision(object)) {
        speed.X *= 1.05;
        speed.Y *= 1.05;
    }
}