游戏中的动画简介

// enter main event loop
while(TRUE)
{
    // test if there is a message in queue, if so get it
    if (PeekMessage(&msg;,NULL,0,0,PM_REMOVE))
    {
        // test if this is a quit
        if (msg.message == WM_QUIT)
            break;

        // translate any accelerator keys
        TranslateMessage(&msg;);

        // send the message to the window proc
        DispatchMessage(&msg;);
    } // end if

    // main game processing goes here
    Game_Main();

} // end while

// closedown game here
Game_Shutdown();

// return to Windows like this
return(msg.wParam);

int Game_Main(void *parms = NULL, int num_parms = 0)
{
        DWORD dwStartTime;

        dwStartTime = GetTickCount();
        // this is the main loop of the game, do all processing here

        // for now test if user is hitting ESC and send WM_CLOSE
        if (KEYDOWN(VK_ESCAPE))
                SendMessage(ghWnd,WM_CLOSE,0,0);

        // another key down is test here

        SceneShow();

        // control the frame rate
        while(GetTickCount() - dwStartTime < TIME_IN_FRAME)
        {
                Sleep(1);
        }

        // return success or failure or your own return code here
        return(1);

import javax.xml.crypto.Data;

public
class appletAnimation extends java.applet.Applet implements Runnable {
    int frame;
    int delay;
    Thread animator;

    /**
     * Initialize the applet and compute the delay between frames.
     */
    public void init() {
    int fps = 30;
    delay = (fps > 0) ? (1000 / fps) : 100;
    }

    /**
     * This method is called when the applet becomes visible on
     * the screen. Create a thread and start it.
     */
    public void start() {
    animator = new Thread(this);
    animator.start();
    }

    /**
     * This method is called by the thread that was created in
     * the start method. It does the main animation.
     */
    public void run() {
        // Remember the starting time
        long tm = System.currentTimeMillis();
        while (Thread.currentThread() == animator) {
            // Display the next frame of animation.
            repaint();

            // Delay depending on how far we are behind.
            try {
                tm += delay;
                Thread.sleep(Math.max(0, tm - System.currentTimeMillis()));
            } catch (InterruptedException e) {
                break;
            }

            // Advance the frame
            frame++;
        }
    }
    
    public void paint(Graphics g) {
        g.setColor(Color.black);
        g.drawString("Frame " + frame, 0, 30);
        }

    /**
     * This method is called when the applet is no longer
     * visible. Set the animator variable to null so that the
     * thread will exit before displaying the next frame.
     */
    public void stop() {
    animator = null;
    }
}