public piece(int x1, int y1, Tetris_color col, Direction_piece stat, Type_piece typ) { x = x1; y = y1; color = col; statut = stat; type = typ; }
public piece(piece copy) { x = copy.x; y = copy.y; color = copy.color; statut = copy.statut; type = copy.type; }
public using_color(Tetris_color color, Color value) { _color = color; _value = value; }