public void run() {
init();
engine = new Engine();
long lastTime = System.nanoTime();
double delta = 0.0;
// Amout of nanoseconds in 1/60th of a second
double ns = 1000000000.0 / 60.0;
long timer = System.currentTimeMillis();
int updates = 0;
int frames = 0;
while (running) {
long now = System.nanoTime();
delta += (now - lastTime) / ns;
lastTime = now;
// if delta >= than one then the amount of time >= 1/60th of a second
if (delta >= 1.0) {
update();
updates++;
delta--;
}
render();
frames++;
// If a second has passed, we print the stats
if (System.currentTimeMillis() - timer > 1000) {
timer += 1000;
System.out.println(updates + " ups, " + frames + " fps");
updates = 0;
frames = 0;
}
if (glfwWindowShouldClose(window) == GL_TRUE) running = false;
}
engine.CleanUp();
keyCallback.release();
sizeCallback.release();
mouseCallback.release();
focusCallback.release();
glfwDestroyWindow(window);
glfwTerminate();
}
void renderLoop() {
long startTime = System.currentTimeMillis() + 5000;
long fps = 0;
while (glfwWindowShouldClose(window.handle) == GLFW_FALSE) {
Runnable event;
while ((event = events.poll()) != null) event.run();
try {
display();
} catch (Exception e) {
e.printStackTrace();
break;
}
glfwSwapBuffers(window.handle);
if (startTime > System.currentTimeMillis()) {
fps++;
} else {
long timeUsed = 5000 + (startTime - System.currentTimeMillis());
startTime = System.currentTimeMillis() + 5000;
log(
String.format(
"%s: %d frames in 5 seconds = %.2f",
getPlatformInfoStringUTF8(platform, CL_PLATFORM_VENDOR),
fps,
fps / (timeUsed / 1000f)));
fps = 0;
}
}
cleanup();
window.signal.countDown();
}