import jp.ac.tuis.basic.*;

public class InvaderServerLite{

    public static void main(String[] args){
	//変数初期化
	int WIDTH=40;
	int HEIGHT=20;
	BasicGraphics g = new BasicGraphics(WIDTH,HEIGHT,20);
	
	int x=WIDTH/2+1;
	int y=HEIGHT-2;
	int remotex=WIDTH/2-1;
	int remotey=HEIGHT-2;
	int[] alien_x={4,2,0};
	int[] alien_y={1,1,1};
	int[] alien_dir={1,1,1};
	boolean game_over=false;
	char key=0;
	char remotekey=0;
	boolean fired_missile=false;
	int missile_x=0;
	int missile_y=0;
	boolean remotefired_missile=false;
	int remotemissile_x=0;
	int remotemissile_y=0;
	long SLEEP=30;
	int POINT=10;
	int score = 0;
	int remotescore = 0;
	int level = 1;
	int MAXLEVEL = 20;
	int sublevel = 0;
	int MAXSUBLEVEL = 2;
	int ALIEN_COUNT = 3;
	
	//画面の初期化
	g.console(false);
	g.color(g.WHITE, g.BLACK);
	g.cls();
	g.locate(0,0);
	g.color(g.WHITE, g.BLACK);

	g.println("Starting server.");
	g.print("Enter server port number.");
	String portstring = g.input();
	int port = Integer.parseInt(portstring);
	g.println();
	g.println("Waiting for client connection...");
	g.connect(null, port);

	//ゲーム画面用意
	g.color(g.WHITE, g.BLACK);
	g.cls();

	g.locate(0,0);
	g.color(g.WHITE, g.BLACK);
	g.print("SCORE : 0");

	g.locate(WIDTH/2,0);
	g.color(g.WHITE, g.BLACK);
	g.print("OPPONENT : 0");

	g.color(g.WHITE, g.GREEN);
	g.locate(0,y+1);
	g.print("                                        ");

	g.locate(x,y);
	g.color(g.CYAN, g.BLACK);
	g.print("A");

	g.locate(remotex,remotey);
	g.color(g.BLUE, g.BLACK);
	g.print("A");

	//g.beep();
	
	g.receiveint();
	
	//インベーダ描画
	for(int j=0; j<ALIEN_COUNT; j++){
	    g.locate(alien_x[j],alien_y[j]);
	    g.color(g.MAGENTA, g.BLACK);
	    g.print("M");
	}
	
	//メインループ
	while(!game_over){
	    
	  //インベーダ移動
	  for(int i=0; i < level; i++){
	     for(int j=0; j< ALIEN_COUNT; j++){
		g.locate(alien_x[j],alien_y[j]);
		g.color(g.WHITE, g.BLACK);
		g.print((char)0);
		alien_x[j] = alien_x[j] + alien_dir[j];
		if(alien_x[j] > WIDTH-1 || alien_x[j] < 0){
		    alien_dir[j] = -alien_dir[j];
		    alien_x[j] = alien_x[j] + alien_dir[j];
		    alien_y[j]++;
		    if(alien_y[j] >= y){
			game_over = true;
		    }
		}

		if(alien_x[j] == missile_x && alien_y[j] == missile_y){
			//インベーダにミサイル命中
		    g.locate(alien_x[j],alien_y[j]);
		    g.color(g.RED, g.BLACK);
		    g.print("@");
		    //g.play("galzaga.wav");
		    score = score + POINT;
		    g.locate(8,0);
		    g.color(g.WHITE, g.BLACK);
		    g.print(score);
		    alien_x[j] = 0;
		    alien_y[j] = 1;
		    alien_dir[j]=1;
		    sublevel++;
		    if(sublevel > MAXSUBLEVEL){
			sublevel = 0;
			level++;
			if(level > MAXLEVEL) level = MAXLEVEL;
		    }

		}else if(alien_x[j] == remotemissile_x && alien_y[j] == remotemissile_y){
			//インベーダにミサイル命中
		    g.locate(alien_x[j],alien_y[j]);
		    g.color(g.RED, g.BLACK);
		    g.print("@");
		    remotescore = remotescore + POINT;
		    g.locate((WIDTH/2) + 11,0);
		    g.color(g.WHITE, g.BLACK);
		    g.print(remotescore);
		    alien_x[j] = 0;
		    alien_y[j] = 1;
		    alien_dir[j]=1;
		    sublevel++;
		    if(sublevel > MAXSUBLEVEL){
			sublevel = 0;
			level++;
			if(level > MAXLEVEL) level = MAXLEVEL;
		    }

		}else{
			//インベーダ再描画
		    g.locate(alien_x[j],alien_y[j]);
		    g.color(g.MAGENTA, g.BLACK);
		    g.print("M");
		}

		if(game_over){
		    break; //leave for loop
		}

	     }//end for(j=0; j<ALIEN_COUNT; j++)

	     if(game_over){
		 break; //leave for loop
	     }

	     g.sleep(SLEEP/level);
	  }//end for(i=0; i<level; i++)
	    
	    //ユーザキー入力
	    key = g.inkey();

	    //同期を取る
	    remotekey = (char)g.receiveint();
	    g.send(key);

	    //プレイヤー操作
	    if((key == 'a' || key == 'j') && x > 0){
		g.locate(x,y);
		g.color(g.WHITE, g.BLACK);
		g.print((char)0);
		x--;
		g.locate(x,y);
		g.color(g.CYAN, g.BLACK);
		g.print("A");
	    }
	    if((key == 'd' || key == 'l') && x < WIDTH-1){
		g.locate(x,y);
		g.color(g.WHITE, g.BLACK);
		g.print((char)0);
		x++;
		g.locate(x,y);
		g.color(g.CYAN, g.BLACK);
		g.print("A");
	    }
	    if(key == ' ' && fired_missile == false){
		fired_missile = true;
		missile_x = x;
		missile_y = y-1;
		g.locate(missile_x, missile_y);
		g.color(g.YELLOW, g.BLACK);
		g.print("i");
		//g.play("013.wav");
	    }else if(fired_missile == true){
		g.locate(missile_x, missile_y);
		g.color(g.WHITE, g.BLACK);
		g.print((char)0);
		missile_y = missile_y-1;
		if(missile_y < 1){
		    fired_missile = false;
		}else{ //else1
		   int hit_alien = -1;
		   for(int j=0; j<ALIEN_COUNT; j++){
			if(missile_x == alien_x[j] && missile_y == alien_y[j]){
			    hit_alien=j;
			}
		   }
		   if(hit_alien>=0){ //ミサイル命中
		    g.locate(missile_x, missile_y);
		    g.color(g.RED, g.BLACK);
		    g.print("@");
		    //g.play("galzaga.wav");
		    score = score + POINT;
		    g.locate(8,0);
		    g.color(g.WHITE, g.BLACK);
		    g.print(score);
		    alien_x[hit_alien] = 0;
		    alien_y[hit_alien] = 1;
		    alien_dir[hit_alien] = 1;
		    sublevel++;
		    if(sublevel > MAXSUBLEVEL){
			sublevel = 0;
			level++;
			if(level > MAXLEVEL) level = MAXLEVEL;
		    }
		   }else{ //else2
		    g.locate(missile_x, missile_y);
		    g.color(g.YELLOW, g.BLACK);
		    g.print("i");
		   } //end else2
		}//end else1
	    }//end else if(fired_missile == true)

	    //対戦プレーヤーの操作
	    if((remotekey == 'a' || remotekey == 'j') && remotex > 0){
		g.locate(remotex,remotey);
		g.color(g.WHITE, g.BLACK);
		g.print((char)0);
		remotex--;
		g.locate(remotex,remotey);
		g.color(g.BLUE, g.BLACK);
		g.print("A");
	    }
	    if((remotekey == 'd' || remotekey == 'l') && remotex < WIDTH-1){
		g.locate(remotex,remotey);
		g.color(g.WHITE, g.BLACK);
		g.print((char)0);
		remotex++;
		g.locate(remotex,remotey);
		g.color(g.BLUE, g.BLACK);
		g.print("A");
	    }
	    if(remotekey == ' ' && remotefired_missile == false){
		remotefired_missile = true;
		remotemissile_x = remotex;
		remotemissile_y = remotey-1;
		g.locate(remotemissile_x, remotemissile_y);
		g.color(g.WHITE, g.BLACK);
		g.print("i");
		//g.play("013.wav");
	    }else if(remotefired_missile == true){
		g.locate(remotemissile_x, remotemissile_y);
		g.color(g.WHITE, g.BLACK);
		g.print((char)0);
		remotemissile_y = remotemissile_y-1;
		if(remotemissile_y < 1){
		    remotefired_missile = false;
		}else{ //else1
		   int hit_alien = -1;
		   for(int j=0; j<ALIEN_COUNT; j++){
			if(remotemissile_x == alien_x[j] && remotemissile_y == alien_y[j]){
			    hit_alien=j;
			}
		   }
		   if(hit_alien>=0){ //ミサイル命中
		    g.locate(remotemissile_x, remotemissile_y);
		    g.color(g.RED, g.BLACK);
		    g.print("@");
		    //g.play("galzaga.wav");
		    remotescore = remotescore + POINT;
		    g.locate((WIDTH/2) + 11,0);
		    g.color(g.WHITE, g.BLACK);
		    g.print(remotescore);
		    alien_x[hit_alien] = 0;
		    alien_y[hit_alien] = 1;
		    alien_dir[hit_alien] = 1;
		    sublevel++;
		    if(sublevel > MAXSUBLEVEL){
			sublevel = 0;
			level++;
			if(level > MAXLEVEL) level = MAXLEVEL;
		    }
		   }else{ //else2
		    g.locate(remotemissile_x, remotemissile_y);
		    g.color(g.WHITE, g.BLACK);
		    g.print("i");
		   } //end else2
		}//end else1
	    }//end else if(remotefired_missile == true)
	    
	}//end while(!game_over) 
	
	g.locate((WIDTH-9)/2, HEIGHT/2);
	g.color(g.WHITE, g.BLACK);
	g.print("GAME OVER");
	
    }//end main

}//end class InvaderServer