public void updateGameState(NumSprite sprite) {
Point p3 = sprite.getMatrixPosition();
Point p4 = m_game_state.getZeroXY();
int[][] matrix = m_game_state.getMatrix();
int i = matrix[p3.x][p3.y];
matrix[p3.x][p3.y] = 0;
matrix[p4.x][p4.y] = i;
m_game_state.setMatrix(matrix);
}
