collisionMap.java

collisionMatrix = new boolean[160][90];
Pixmap backgroundMap = new Pixmap(Gdx.files.internal("data/warehouse-map.png"));
for (int y = 0; y < 90; y++) {
    for (int x = 0; x < 160; x++) {
        // Get the pixel, shifting off the alpha value
        int pixel = backgroundMap.getPixel(x, y) >>> 8;
        if (pixel == 0x000000) {
            // true means impassible, also invert y to match our coordinate system
            collisionMatrix[x][90 - y] = true;
        }
    }
}