public class MapChunkLoad {

    public static void main(String[] args) {
        short[] groundLayer;
        int mapWidth = 9;
        int mapHeight = 9;
        int chunkWidth = mapWidth / 3; //3
        int chunkHeight = mapHeight / 3; //3
        int characterX = 8;
        int characterY = 8;
        String map = "1, 1, 1, 1, 1, 1, 1, 1, 7, " +
                     "1, 8, 8, 1, 1, 1, 1, 1, 1, " +
                     "1, 8, 9, 9, 1, 1, 1, 1, 1, " +
                     "1, 1, 9, 9, 1, 1, 1, 1, 1, " +
                     "1, 1, 1, 1, 1, 1, 1, 1, 1, " +
                     "1, 1, 1, 1, 1, 1, 1, 1, 1, " +
                     "1, 1, 1, 1, 1, 1, 1, 1, 1, " +
                     "1, 1, 1, 1, 1, 1, 1, 1, 1, " +
                     "6, 1, 1, 1, 1, 1, 1, 1, 1";
        String[] strArr = map.split(", ");
        groundLayer = new short[chunkWidth * chunkHeight];

        //load into groundLayer
        int arrayIndex = 0;
        int count = (characterX - (chunkWidth/2)) + ((characterY - (chunkHeight/2)) * mapWidth); //top left tile within chunk

        for (int y = 0; y < chunkHeight; y++){
            for (int x = 0; x < chunkWidth; x++){
                if (count > -1 && count < strArr.length){
                    groundLayer[arrayIndex] = Short.parseShort(strArr[count]);
                    System.out.println("arrayIndex[" + arrayIndex + "] = " + strArr[count]);
                } else {
                    groundLayer[arrayIndex] = 0;
                    System.out.println("arrayIndex[" + arrayIndex + "] = " + 0);
                }

                arrayIndex++;
                count++;
            }
            count += (mapWidth - chunkWidth);
        }

        System.out.println("");
        //print map grid
        int printcount = 0;
        for (int y = 0; y < chunkHeight; y++){
            for (int x = 0; x < chunkWidth; x++){
                if (x == chunkWidth - 1){
                    System.out.println(groundLayer[printcount]);
                } else {
                    System.out.print(groundLayer[printcount] + ", ");
                }
                printcount++;
            }
        }

    }
}