// Copyright (c) 2023 Dominic Masters
// 
// This software is released under the MIT License.
// https://opensource.org/licenses/MIT

#include "Collider2D.hpp"
#include "BoxCollider.hpp"

using namespace Dawn;

Collider2D::Collider2D(SceneItem *i) : SceneItemComponent(i) {
  
}

bool_t Collider2D::getCollidingResult(
  glm::vec2 movement,
  Collider2D *other,
  glm::vec2 &normal,
  float_t &entryTime,
  float_t &exitTime,
  glm::vec2 &entryPoint,
  glm::vec2 &exitPoint
) {
  assertNotNull(other);
  if(movement.x == 0 && movement.y == 0) return false;

  auto localPos = this->transform->getLocalPosition();
  glm::vec2 myPos(localPos.x, localPos.z);


  // Check what THIS is
  switch(this->getColliderType()) {
    case COLLIDER2D_TYPE_BOX: {
      auto box1 = dynamic_cast<BoxCollider*>(this);
      assertNotNull(box1);

      // Box VS ?
      switch(other->getColliderType()) {
        case COLLIDER2D_TYPE_BOX: {
          auto box2 = dynamic_cast<BoxCollider*>(other);
          assertNotNull(box2);
          auto localPos2 = box2->transform->getLocalPosition();
          glm::vec2 otherPos(localPos2.x, localPos2.z);

          return boxCheckCollision(
            myPos, box1->min, box1->max,
            otherPos, box2->min, box2->max,
            movement,
            normal, entryTime, exitTime, entryPoint, exitPoint
          );
        }
        
        default: {
          assertUnreachable();
        }
      }
      break;
    }

    default: {
      assertUnreachable();
    }
  }
  
  assertUnreachable();
  return false;
}