#include "part.hpp"


part::part()
{
	posX = WIDTH / 2 - 1;
	posY = -4;

	generate();
}

void part::fillData()
{
	for (int i = 0; i < 4; i++)
	{
		for (int j = 0; j < 4; j++)
		{
			data[i][j] = Shapes[shapeIndex][i][j];
		}
	}
}

void part::generate()
{
	int g;

	g = (rand() % 7) * 4;

	shapeIndex = (ShapeIndexes)g;
	color = g / 4;

	fillData();
}

void part::move(int x, int y)
{
	if (isValid(x, y))
	{
		posX += x;
		posY += y;
	}
}

void part::rotate()
{
	int coIndex;

	coIndex = shapeIndex;

	shapeIndex = ((shapeIndex + 1) % 4 == 0 ? shapeIndex - 3 : shapeIndex + 1);

	fillData();

	if (!isValid())
	{
		shapeIndex = coIndex;

		fillData();
	}
}

bool part::isValid(int xOffset, int yOffset)
{
	for (int y = 0; y < 4; y++)
	{
		for (int x = 0; x < 4; x++)
		{
			if ( (data[y][x]  &&  (posX + x + xOffset >= WIDTH  ||  posX + xOffset < 0))  ||  (data[y][x]  &&  (posY + y + yOffset > HEIGHT)) )
			{
				# ifdef DEBUG
					cout << "InValid" << endl;
				# endif

				return false;
			}
		}
	}

	# ifdef DEBUG
		cout << "Valid" << endl;
	# endif

	return true;
}

void part::draw(SDL_Surface *screen)
{
	for (int i = 0; i < 4 ;i++)
	{
		for (int m = 0; m < 4; m++)
		{
			if (data[i][m])
			{
				drawQuad(screen, (m + posX) * SIZE, (i + posY) * SIZE, colors[color]);
			}
		}
	}
}

void part::draw ( int startX, int startY, SDL_Surface * screen )
{
	for (int i = 0; i < 4 ;i++)
	{
		for (int m = 0; m < 4; m++)
		{
			if (data[i][m])
			{
				drawQuad(screen, (m + posX) * SIZE + startX, (i + posY) * SIZE + startY, colors[color]);
			}
		}
	}
}

int part::getPosX()
{
	return posX;
}

int part::getPosY()
{
	return posY;
}

int part::getElement(int x, int y)
{
	return data[y][x];
}

int part::getColor()
{
	return color;
}