Re: Serious problem with java font animation

From: Tristan (shiranaihito_at_hotmail.com)
Date: 11/25/03 

Date: 25 Nov 2003 01:59:56 -0800

Hi,
 
> Well use a smaller increase amount and don't Font.deriveFont() in the
> loop. Create an array of fonts with Font.deriveFont() in the
> constructor. You might provide your code so we can see exactly what
> your are doing.

the animation loop is like this:

public void run() {
while(true) {
       text.update();
       repaint();
       try {
          Thread.sleep(20); //Frames per second
       } catch (...)
}
}

Paint method:

public void paint(Graphics g) {
       super.paint(g);
       text.paint(g);
}

Text is an object that has an update method:

...
private int counter;
private Font textFont;
private int textSize;
private int stop = DISPLAY_TIME/REFRESH_RATE;

public void update() {
counter++;
if (counter <= stop) {
       textize += ADDITIONAL_POINTS/stop; //ADDITIONAL_POINTS is 50
pt
       textFont = textFont.deriveFont(((float) textSize));
}
}

public void paint(g) {
    g.setFont(textFont);
    g.drawString("Slow and bad animation !");
}

The string should be current string size + 50 pt in the end, so I
divided the steps from 50 pt. The result is the points to increase the
string size for each loop until the given display time.

Bye, Tristan.

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