/**
* Update and render the game
*
* @param delta The change in time since last update and render
* @throws SlickException Indicates an internal fault to the game.
*/
protected void updateAndRender(int delta) throws SlickException {
if (smoothDeltas) {
if (getFPS() != 0) {
delta = 1000 / getFPS();
}
}
input.poll(width, height);
Music.poll(delta);
if (!paused) {
storedDelta += delta;
if (storedDelta >= minimumLogicInterval) {
try {
if (maximumLogicInterval != 0) {
long cycles = storedDelta / maximumLogicInterval;
for (int i = 0; i < cycles; i++) {
game.update(this, (int) maximumLogicInterval);
}
int remainder = (int) (storedDelta % maximumLogicInterval);
if (remainder > minimumLogicInterval) {
game.update(this, (int) (remainder % maximumLogicInterval));
storedDelta = 0;
} else {
storedDelta = remainder;
}
} else {
game.update(this, (int) storedDelta);
storedDelta = 0;
}
} catch (Throwable e) {
// Log.error(e);
throw new SlickException("Game.update() failure.", e);
}
}
} else {
game.update(this, 0);
}
if (hasFocus() || getAlwaysRender()) {
if (clearEachFrame) {
GL.glClear(SGL.GL_COLOR_BUFFER_BIT | SGL.GL_DEPTH_BUFFER_BIT);
}
GL.glLoadIdentity();
graphics.resetTransform();
graphics.resetFont();
graphics.resetLineWidth();
graphics.setAntiAlias(false);
try {
game.render(this, graphics);
} catch (Throwable e) {
// Log.error(e);
throw new SlickException("Game.render() failure.", e);
}
graphics.resetTransform();
if (showFPS) {
defaultFont.drawString(10, 10, "FPS: " + recordedFPS);
}
GL.flush();
}
if (targetFPS != -1) {
Display.sync(targetFPS);
}
}
