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void OverlayImageRect(RwRGBA *target, int targetWidth, RwRGBA *source, int sourceWidth, int offsetX, int offsetY, RwRect sourceRect) {
    int width = sourceRect.w;
    int height = sourceRect.h;

    for (int y = offsetY; y < (offsetY + height); y++) {
        int fY = y - offsetY + sourceRect.y;

        for (int x = offsetX; x < (offsetX + width); x++) {
            int fX = x - offsetX + sourceRect.x;

            RwRGBA targetColor = target[y * targetWidth + x];
            RwRGBA sourceColor = source[fY * sourceWidth + fX];

            double opacity = sourceColor.alpha / 255.0f;

            targetColor.red = (uint8_t)(targetColor.red * (1.0 - opacity) + opacity * sourceColor.red);
            targetColor.green = (uint8_t)(targetColor.green * (1.0 - opacity) + opacity * sourceColor.green);
            targetColor.blue = (uint8_t)(targetColor.blue * (1.0 - opacity) + opacity * sourceColor.blue);
            targetColor.alpha = (uint8_t)(targetColor.alpha * (1.0 - opacity) + opacity * sourceColor.alpha);

            target[y * targetWidth + x] = targetColor;
        }
    }
}

void ImageReplaceColor(RwRGBA *target, int width, int height, RwRGBA color) {
    for (int y = 0; y < height; y++) {
        for (int x = 0; x < width; x++) {
            target[y * width + x].red = color.red;
            target[y * width + x].green = color.green;
            target[y * width + x].blue = color.blue;
        }
    }
}