func (t *TestSuite) TestRenderWorld() {
filename := "expected_world.png"
t.rlControl.drawFunc <- func() {
// initialize the default source to a deterministic
// state
rand.Seed(1234)
state := lib.NewGameState(t.renderState.window)
state.Draw()
t.testDraw <- testlib.Screenshot(t.renderState.window)
t.renderState.window.SwapBuffers()
}
distance, exp, act, err := testlib.TestImage(filename, <-t.testDraw, imagetest.Center)
if err != nil {
panic(err)
}
t.True(distance < distanceThreshold, distanceError(distance, filename))
if t.Failed() {
saveExpAct(t.outputPath, "failed_"+filename, exp, act)
}
}
// Run runs renderLoop. The loop renders a frame and swaps the buffer
// at each tick received.
func renderLoopFunc(control *renderLoopControl) loop.LoopFunc {
return func(loop loop.Loop) error {
var state *lib.GameState
// Lock/unlock the loop to the current OS thread. This is
// necessary because OpenGL functions should be called from
// the same thread.
runtime.LockOSThread()
defer runtime.UnlockOSThread()
// Create an instance of ticker and immediately stop
// it because we don't want to swap buffers before
// initializing a rendering state.
ticker := time.NewTicker(time.Duration(1e9 / int(FramesPerSecond)))
ticker.Stop()
fpsTicker := time.NewTicker(time.Duration(time.Second))
fpsTicker.Stop()
for {
select {
case init := <-control.init:
window := init.window
activity := init.activity
ticker.Stop()
state = lib.NewGameState(window)
width, height := window.GetSize()
gl.Viewport(0, 0, gl.Sizei(width), gl.Sizei(height))
ShowAdPopup(activity)
ticker = time.NewTicker(time.Duration(time.Second / time.Duration(FramesPerSecond)))
fpsTicker = time.NewTicker(time.Duration(time.Second))
case tap := <-control.tapEvent:
state.World.Remove(tap[0], tap[1])
// At each tick render a frame and swap buffers.
case <-ticker.C:
state.Frames++
state.Draw()
state.SwapBuffers()
case <-fpsTicker.C:
state.Fps = state.Frames
state.Frames = 0
case event := <-control.pause:
ticker.Stop()
fpsTicker.Stop()
state.World.Destroy()
event.Paused <- true
case <-control.resume:
case <-loop.ShallStop():
ticker.Stop()
return nil
}
}
}
}