//S02137 参考作品
import jp.ac.tuis.basic.*;

public class Hit2{

    public static void main(String[] args){

	//初期化
	BasicGraphics g = new BasicGraphics();

	int WIDTH=40;
	int HEIGHT=20;

	int TOTALTARGET = 10; //標的の捕獲目標回数

	int computer_x;
	int computer_y;

	int player_x=WIDTH/2;
	int player_y=HEIGHT-2;
	char player_dir=0; //プレイヤーの進行方向

	int score = 0;  //現在の標的の捕獲回数
	int time = 0;   //現在の時間(ループ数)
	double tmp;

	long SLEEP=100;
	char pl='A';

	//プレイヤー表示
	g.locate(player_x,player_y);
	g.color(g.CYAN);
	g.print('A');

	//標的表示
	computer_x = (int)(Math.random()*(WIDTH-2));
	computer_y = (int)(Math.random()*(HEIGHT-2));
	g.locate(computer_x, computer_y);
	g.color(g.GREEN);
	g.print('X');

	while(g.inkey() == 0){} // 何かキーを押したらゲーム開始

	//アニメーション開始
	while(true){
	    time++; //ループ回数を追加
	    
	    if ((time%4==0)||((score >= TOTALTARGET/2)&&(time%2==0))||(score >= TOTALTARGET*.75)){
		//標的移動
		g.locate(computer_x,computer_y);
		g.print((char)0); //前の座標のプレイヤーを消す
		
		tmp=Math.random();
		if(tmp < .25 && computer_x > 0){
		    computer_x--;
		}
		if(tmp >= .25 && tmp <.5 && computer_x < WIDTH-2){
		    computer_x++;
		}
		if(tmp >=.5 && tmp<.75 && computer_y > 0){
		    computer_y--;
		}
		if(tmp >=.75 && computer_y < HEIGHT-2){
		    computer_y++;
		}
		
		
		g.locate(computer_x,computer_y);
		if (score >= TOTALTARGET/2){g.color(g.YELLOW);
		if (score >= TOTALTARGET*.75){g.color(g.RED);}
		}else{
		    g.color(g.GREEN);
		}
		g.print('X');
		

		if((player_x == computer_x) && (player_y == computer_y)){
		    //当り
		    score++;
		    
		    if(score > TOTALTARGET){ //標的を目標回数捕らえた
			break; //終了
		    }
		    
		    //新しい標的表示
		    computer_x = (int)(Math.random()*(WIDTH-2));
		    computer_y = (int)(Math.random()*(HEIGHT-1));
		    g.locate(computer_x, computer_y);
		    if (score >= TOTALTARGET/2){g.color(g.YELLOW);
		    if (score >= TOTALTARGET*.75){g.color(g.RED);}
		    }else{
		    g.color(g.GREEN);
		    }
		    g.print('X');
		}
	    }
	    //プレイヤー移動
	    g.locate(player_x,player_y);
	    g.print((char)0); //前の座標のプレイヤーを消す
	    
	    char key = g.inkey();
	    
	    if(key == 'j' || key =='l' || key == 'i' || key == 'k'){
		player_dir=key;
	    }


	    if(player_dir == 'j' && player_x > 0){
		player_x--;
		pl='<';
	    }
	    if(player_dir == 'l' && player_x < WIDTH-2){
		player_x++;
		pl='>';
	    }
	    if(player_dir == 'i' && player_y > 0){
		player_y--;
		pl='A';
	    }
	    if(player_dir == 'k' && player_y < HEIGHT-1){
		player_y++;
		pl='V';
	    }
	    
	    g.locate(player_x,player_y);
	    g.color(g.CYAN);
	    g.print(pl);
	    
	    if((player_x == computer_x) && (player_y == computer_y)){
		//当り
		score++;

		if(score > TOTALTARGET){ //標的を目標回数捕らえた
		    break; //終了
		}

		//新しい標的表示
		computer_x = (int)(Math.random()*(WIDTH-2));
		computer_y = (int)(Math.random()*(HEIGHT-2));
		g.locate(computer_x, computer_y);
		g.locate(computer_x,computer_y);
		if (score >= TOTALTARGET/2){g.color(g.YELLOW);
		if (score >= TOTALTARGET*.75){g.color(g.RED);}
		}else{
		    g.color(g.GREEN);
		}
		g.print('X');
	    }

	    g.sleep(SLEEP);
	    
	}//end while(true) 

	g.locate(WIDTH/2, HEIGHT/2);
	g.color(g.WHITE);
	g.print("TIME:");
	g.print(time);
	
    }//end main
    
}//end class Hit2