/** @return a display matrix for existing frames */
private List<char[][]> buildExistingFramesMatrix() {
List<char[][]> matrix = new ArrayList<char[][]>();
for (Frame frame : game.getFrames()) {
FrameAsciiDisplay display;
if (frame instanceof FinalFrame) {
display = new FinalFrameAsciiDisplay((FinalFrame) frame);
} else {
display = new FrameAsciiDisplay(frame);
}
matrix.add(display.display());
}
return matrix;
}
