private void rotation_transformation(List <shape_block> change_map, List <shape_block> orig_map, Field grid)
{
int delta_x = orig_map[this.center].x_coord; //placing shape block at (0,0) for rotation simplicity then placing it back where it was, delta = current coordinates of the figure
int delta_y = orig_map[this.center].y_coord; //referring to the shape's centre
for (int i = 0; i < SHAPE_SIZE; i++)
{
change_map.Add(new shape_block {
x_coord = orig_map[i].x_coord - delta_x, y_coord = orig_map[i].y_coord - delta_y
});
}
for (int i = 0; i < SHAPE_SIZE; i++)
{
change_map[i] = new shape_block {
x_coord = change_map[i].y_coord, y_coord = SHAPE_SIZE - orig_map[i].x_coord
};
}
int delta_new_x = Math.Abs(change_map[this.center].x_coord - delta_x); //offset - centre should be in the same location
int delta_new_y = Math.Abs(change_map[this.center].y_coord - delta_y);
for (int i = 0; i < SHAPE_SIZE; i++)
{
change_map[i] = new shape_block {
x_coord = change_map[i].x_coord + delta_new_x, y_coord = change_map[i].y_coord + delta_new_y
};
}
}
private int check_self(shape_block change_map_part, List <shape_block> orig_map) //if piece of the new map corresponds to original map
{
for (int i = 0; i < orig_map.Count; i++)
{
if ((orig_map[i].x_coord == change_map_part.x_coord) && (orig_map[i].y_coord == change_map_part.y_coord))
{
return(0);
}
}
return(1);
}
private void reposition(List <shape_block> change_map, List <shape_block> orig_map, Field grid)
{
for (int i = 0; i < SHAPE_SIZE; i++)
{
grid.area[orig_map[i].x_coord, orig_map[i].y_coord] = ' '; //cleaning up figure trails
}
for (int i = 0; i < SHAPE_SIZE; i++)
{
orig_map[i] = new shape_block {
x_coord = change_map[i].x_coord, y_coord = change_map[i].y_coord
};
grid.area[change_map[i].x_coord, change_map[i].y_coord] = '#';
}
}