#include "pch.h"
#include "Player.h"

#include "colors.h"
#include "utils.h"
#include "WorldLevel.h"

Player::Player(const Point2f& Position) : m_Position(Position), m_Size(Point2f{50, 20})
{}

void Player::Draw() const {
	utils::SetColor(Colors::RED);
	utils::DrawRect(Rectf{m_Position.x, m_Position.y, m_Size.x, m_Size.y});
}

void Player::Update(float elapsedTime, const WorldLevel& level) {
	Point2f acc{0, 0};
	acc.y += m_Gravity.y;

	Point2f nextPos = m_Position + m_Vel * elapsedTime * acc * elapsedTime * elapsedTime;
	//collision checking
	auto tiles = level.GetAllTiles();
	for (int x{0}; x < WorldLevel::WORLD_WIDTH; ++x) {
		for (int y{0}; y < WorldLevel::WORLD_HEIGHT; ++y) {
			WorldTile* tile = tiles[x][y];
			if (tile->GetTileType() == GroundTileTypes::Dirt) {
				Rectf tileRect = Rectf{tile->GetPosition().x, tile->GetPosition().y, WorldLevel::TILE_WIDTH, WorldLevel::TILE_HEIGHT};
				if (utils::IsOverlapping(nextPos, m_Size, tileRect)) {
					//collision
					if (m_Vel.y < 0) {
						//collision from above
						m_Position.y = tileRect.bottom;
						m_Vel.y = 0;
					} else {
						m_Position.y = tileRect.bottom + m_Size.y;
						m_Vel.y = 0;
					}
				}
			}
		}
	}
	m_Vel = Point2f{m_Vel.x + float(acc.x * elapsedTime), m_Vel.y + float(acc.y * elapsedTime)};
	// m_Position += m_Vel * elapsedTime;
	m_Position = Point2f{m_Position.x + m_Vel.x * elapsedTime, m_Position.y + m_Vel.y * elapsedTime};
}