#include "pch.h"
#include "Tile.h"
#include "Item.h"
#include "Texture.h"

int Tile::m_Count{ 0 };

const float Tile::m_Size{ 64.f };

Texture* Tile::m_pGoldTextures{ nullptr };

Tile::Tile(int x, int y, int itemType)
	: m_Position{ x * m_Size, y * m_Size }
	, m_X{ x }
	, m_Y{ y }
	, m_Item{ itemType }
{
	m_DrawBorder[int(Direction::UP)] = false;
	m_DrawBorder[int(Direction::DOWN)] = false;
	m_DrawBorder[int(Direction::LEFT)] = false;
	m_DrawBorder[int(Direction::RIGHT)] = false;

	m_Vertices.push_back(Point2f{ m_Position.x , m_Position.y });
	m_Vertices.push_back(Point2f{ m_Position.x + m_Size , m_Position.y });
	m_Vertices.push_back(Point2f{ m_Position.x + m_Size , m_Position.y + m_Size });
	m_Vertices.push_back(Point2f{ m_Position.x , m_Position.y + m_Size });

	if (m_pGoldTextures == nullptr)
	{
		m_pGoldTextures = new Texture{ "Resources/Sprites/gold_tiles.png" };
	}

	m_Count++;
}

int Tile::GetX() const
{
	return m_X;
}

int Tile::GetY() const
{
	return m_Y;
}

Tile::~Tile()
{
	m_Count--;

	if (m_Count == 0)
	{
		delete m_pGoldTextures;
		m_pGoldTextures = nullptr;
	}
}

void Tile::SetBorder(Direction dir, bool value)
{
	m_DrawBorder[int(dir)] = value;
}

void Tile::DrawVertices() const
{
	float vertexSize = 4;

	glLineWidth(1);
	glColor4f(.5f, .5f, .5f, 1);
	glBegin(GL_LINE_LOOP);
	for (Point2f vertex : m_Vertices)
	{
		glVertex2f(vertex.x, vertex.y);
	}
	glEnd();

	glColor4f(0, 0, 1, 1);
	for (Point2f vertex : m_Vertices)
	{
		utils::FillRect(Point2f{ vertex.x - vertexSize / 2, vertex.y - vertexSize / 2 }, vertexSize, vertexSize);
	}
}

std::vector<Point2f> Tile::GetVertices() const
{
	return m_Vertices;
}

std::vector<Point2f> Tile::GetLedgeVertices() const
{
	float grabDistance{ 8 };

	std::vector<Point2f> vertices{ Point2f { m_Vertices[0].x, m_Vertices[0].y + Tile::m_Size - grabDistance },Point2f { m_Vertices[1].x, m_Vertices[1].y + Tile::m_Size - grabDistance }, m_Vertices[2], m_Vertices[3] };
	return vertices;
}

void Tile::DrawItem() const
{
	//Draw gold/item overlay
	switch (Item::Type(m_Item))
	{
	case Item::Type::GOLD_CHUNK_SMALL:
		m_pGoldTextures->Draw(Point2f{ m_Position.x, m_Position.y }, Rectf{ 0, 0, m_Size, m_Size });
		break;
	case Item::Type::GOLD_CHUNK_BIG:
		m_pGoldTextures->Draw(Point2f{ m_Position.x, m_Position.y }, Rectf{ 64, 0, m_Size, m_Size });
		break;
	default:
		break;
	}
}