/**
 *  Hunter-Prey simulator version 1.1
 *  Copyright 2011 Kenneth Mackin
 */

import jp.ac.tuis.basic.*;

public class FieldView{

    BasicGraphics g;
    Field field;

    byte COLOR[]={BasicGraphics.CYAN,
		  BasicGraphics.YELLOW,
		  BasicGraphics.MAGENTA,
		  BasicGraphics.GREEN,
		  BasicGraphics.RED,
		  BasicGraphics.BLUE}; //表示色

    long SLEEP=100;

    FieldView(Field field){
	this.field=field;

	//画面の初期化
	g = new BasicGraphics(field.getWidth(),field.getHeight(),10);
	g.console(false);
	clear_window();
    }

    void showAgents(){
	for(int i=1; i<field.getAgents(); i++){
	    printHunter(field.getX(i),field.getY(i),COLOR[i%COLOR.length]);
	}
	printPrey(field.getX(0),field.getY(0));
    }

    void update(){
	showAgents();
	sleep(SLEEP);
	//show tracks
	for(int i=1; i<field.getAgents(); i++){
	    printHunterTracks(field.getX(i),field.getY(i),COLOR[i%COLOR.length]);
	}
	printPreyTracks(field.getX(0),field.getY(0));
    }

    void clear_window(){
	g.color(g.WHITE, g.BLACK);
	g.cls();
    }

    void printHunter(int x, int y, byte color){
	g.locate(x,y);
	g.color(color, g.BLACK);
	g.print("Ω"); //ハンター
    }

    void printHunterTracks(int x, int y, byte color){
	g.locate(x,y);
	g.color(color, g.BLACK);
	g.print("・"); //ハンターの足跡
    }

    void printPrey(int x, int y){
	g.locate(x,y);
	g.color(g.WHITE, g.BLACK);
	g.print("Ж"); //獲物
    }

    void printPreyTracks(int x, int y){
	g.locate(x,y);
	g.color(g.WHITE, g.BLACK);
	g.print("＋"); //獲物の足跡
    }

    void sleep(long wait){
	g.sleep(wait);
    }

}//end class