import java.util.Random;

public class newForest {
    Tree[][] trees;
    int n;
    public static final boolean DEBUG = true;

    public newForest(){
        n = 4;
        trees = new Tree[n][n];

        Random rand = new Random();
        int range = rand.nextInt((n*n - n*2) + 1) + n*2;  // decides how many tree there is going to be planted
        int[] treeType = new int[range]; // treeType is an array there is going to hold 0,1's where 0 represents Ash and 1 represents Beech
        if(DEBUG) System.out.println("Lenght of treeType: " + treeType.length);

        // Populates treeType with 0 and 1 (random generated)
        for (int i = 0; i < range;i ++){
            treeType[i] = rand.nextInt(2);
        }

        int plantedTrees = 0; // plantedTrees

        // populate trees with Ash and Beech trees.
        while (plantedTrees < range){
            for (int i = 0; i < range; i++) {
                int lower = rand.nextInt((n) ) ;
                int upper = rand.nextInt((n) ) ;

                if (DEBUG) System.out.println( "Lowe: " + lower +"\nUpper: " + upper);

                if ( trees[lower][upper] == null ){
                    if (treeType[i] == 0) {
                        trees[lower][upper] = new Ash();
                        plantedTrees++;
                        if(DEBUG) System.out.println("Ash placed");
                    } else {
                        trees[lower][upper] = new Beech();
                        plantedTrees++;
                        if(DEBUG) System.out.println("Beech placed");
                    }
                }
            }
        }
        if (DEBUG) System.out.println("Number of trees " + plantedTrees); // prints number of printed trees.

        /* Prints a model of the forest.
        *  [x] represents a tree
        *  [ ] represents an empty place ( null in the array )
        */
        if (DEBUG) {
            for (int i = 0; i < n ; i++) {
                for (int j = 0; j < n ; j++) {
                    if (trees[i][j] == null) {
                        System.out.print("[ ]");
                    } else {
                        System.out.print("[x]");
                    }
                }
                System.out.println();
            }
        }



    }

    public Tree getTree(int i, int j){
        return trees[i][j];
    }

    public static void main(String[] args) {
        newForest forest = new newForest();

    }

}