public class GenericRule implements GameRule {

	private Colony next;
	private boolean[][] neighbours;
	private boolean[] live;
	private boolean[] dead;
	
	public GenericRule() {
		neighbours = new boolean[3][3];
		this.fillArray(neighbours);
		live = new boolean[] {false,false,true,true,false,false,false,false,false};
		dead = new boolean[] {false,false,false,true,false,false,false,false,false};
	}
	
	private void fillArray(boolean[][] arr) {
		for (int i = 0; i<arr.length; i++) {
			for (int j = 0; j<arr[0].length; j++) {
				
				arr[i][j] = true;
				
			}
		}
	}
	
	@Override
	public boolean nextState(Colony col, int y, int x) {
		
		int n = this.countNeighbours(col, y, x);
		boolean lives = col.getCell(y, x);
		
		if (lives) {
			
			return live[n];
			
		} else {
			
			return dead[n];
			
		}
		
	}
	
	public int countNeighbours(Colony col, int y, int x) {
		
		int n = 0;
		
		
		for (int i = -1; i <= 1; i++) {
			
			for (int j = -1; j <= 1; j++) {
			
					if ((isNeighbour(i, j))&&(col.getCell(i+y, j+x))) {
					
						n++;
						
					}
			}
		}
		
		return n;
	}
	
	private boolean willLive(boolean alive, int liveNeigbours) {
		
		if (alive && (liveNeigbours == 2 || liveNeigbours == 3)) {
			return true;
		} else if ((!alive) && (liveNeigbours == 3)) {
			return true;
		} else {
			return false;
		}
		
	}
	
	public void setSurvive(int liveNeighbours, boolean alive) {
		live[liveNeighbours] = alive; 
	}
	
	public void setBirth(int liveNeighbours, boolean alive) {
		dead[liveNeighbours] = alive;
	}
	
	public void setNeighbour(int oppned, int venstrehoyre, boolean countThis) {
		
		if ((oppned == 0)&&(venstrehoyre == 0)) return;
		
		neighbours[1+oppned][1+venstrehoyre] = countThis;
			
	}
	
	public boolean isNeighbour(int on, int vh) {
		
		if ((on == 0)&&(vh == 0)) return false;
		
		return neighbours[1+on][1+vh];
		
	}


}