#include "shapes.h"

point_t tetromino_t::rotated_shape_data(const int rotation, int (*result_shape_data)[16])

{

memcpy(result_shape_data, &shape_data, sizeof(int) * SHAPE_SIZE);

int translated_block[SHAPE_SIZE];

int normalized_rotation = rotation;

if (normalized_rotation < 0) {

normalized_rotation = 4 - -(normalized_rotation % 4);

}

for (int deg = 0; deg < normalized_rotation; deg++) {

for (int y = 0; y < SHAPE_BOUNDS_HEIGHT; y++) {

for (int x = 0; x < SHAPE_BOUNDS_WIDTH; x++) {

int xpos = SHAPE_BOUNDS_WIDTH - 1 - y;

int ypos = x;

translated_block[AT(x, y)] = (*result_shape_data)[AT(xpos, ypos)];

}

}

memcpy(result_shape_data, &translated_block, sizeof(int) * SHAPE_SIZE);

}

point_t offset = { 0, 0 };

if (normalized_rotation >= 2) {

// Quadrants I and IV will have space on the left

offset.x = (SHAPE_BOUNDS_WIDTH - width);

}

if (normalized_rotation > 0 && normalized_rotation < 3) {

// Quadrants III and IV will have space on top

offset.y = (SHAPE_BOUNDS_HEIGHT - height);

}

return offset;

}