求JAVA贪吃蛇代码 要能运行有注解的!( 二 )

< initArrayLength; ++i){ int x = maxX/2+i; int y = maxY/2; nodeArray.addLast(new Node(x, y)); matrix[x][y] = true; } food = createFood(); matrix[food.x][food.y] = true; } public void changeDirection(int newDirection){ if (direction % 2 != newDirection % 2){ direction = newDirection; } } public boolean moveOn(){ Node n = (Node)nodeArray.getFirst(); int x = n.x; int y = n.y; switch(direction){ case UP: y--; break; case DOWN: y++; break; case LEFT: x--; break; case RIGHT: x++; break; } if ((0 <= x && x < maxX) && (0 <= y && y < maxY)){ if (matrix[x][y]){ if(x == food.x && y == food.y){ nodeArray.addFirst(food); int scoreGet = (10000 - 200 * countMove) / timeInterval; score += scoreGet > 0? scoreGet : 10; countMove = 0; food = createFood(); matrix[food.x][food.y] = true; return true; } else return false; } else{ nodeArray.addFirst(new Node(x,y)); matrix[x][y] = true; n = (Node)nodeArray.removeLast(); matrix[n.x][n.y] = false; countMove++; return true; } } return false; } public void run(){ running = true; while (running){ try{ Thread.sleep(timeInterval); } catch(Exception e){ break; } if(!paused){ if (moveOn()){ gs.repaint(); } else{ JOptionPane.showMessageDialog( null, "you failed", "Game Over", JOptionPane.INFORMATION_MESSAGE); break; } } } running = false; } private Node createFood(){ int x = 0; int y = 0; do{ Random r = new Random(); x = r.nextInt(maxX); y = r.nextInt(maxY); }while(matrix[x][y]); return new Node(x,y); } public void speedUp(){ timeInterval *= speedChangeRate; } public void speedDown(){ timeInterval /= speedChangeRate; } public void changePauseState(){ paused = !paused; } public String toString(){ String result = ""; for(int i=0; i【求JAVA贪吃蛇代码 要能运行有注解的!】

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