ColorIndexMap.h

#pragma once

#include "ByteMap.h"
#include "ColorPalette256.h"

class ColorIndexMap : public ByteMap, public Mipmapable<ColorIndexMap>
{
public:
    ColorIndexMap::ColorIndexMap(int width, int height) : ByteMap(width, height) {
    }

    ColorIndexMap::ColorIndexMap(int width, int height, ColorPalette256 & palette) : ByteMap(width, height) {
        setColorPalette(palette);
    }

    ColorIndexMap::~ColorIndexMap(void) {
    }

    void setColorPalette(ColorPalette256 & palette) {
        for (int i = 0; i < 256; i++) {
            mapPalette.setPaletteColor(i, palette.getPaletteColor(i));
        }
    }

    ColorPalette256* getColorPalette() {
        return &mapPalette;
    }

    Color getColorAt(int x, int y) {
        return mapPalette.getPaletteColor(getByte(x, y));
    }

    ColorIndexMap* makeMipMap(void) {
        int width = getWidth() / 2;
        int height = getHeight() / 2;
        ColorIndexMap* mipMap = new ColorIndexMap(width, height);
        for (int x = 0; x < width; x++) {
            for (int y = 0; y < height; y++) {
                mipMap->setByte(x, y, getByte(2 * x, 2 * y));
            }
        }
        return mipMap;
    }

private:
    ColorPalette256 mapPalette;
};