static void
snowglobePreparePaintScreen (CompScreen *s,
int ms)
{
SNOWGLOBE_SCREEN (s);
int i;
for (i = 0; i < as->numSnowflakes; i++)
{
SnowflakeDrift(s, i);
}
updateWater(s, (float)ms / 1000.0);
updateGround(s, (float)ms / 1000.0);
UNWRAP (as, s, preparePaintScreen);
(*s->preparePaintScreen)(s, ms);
WRAP (as, s, preparePaintScreen, snowglobePreparePaintScreen);
}
void csWaterDemo::SetupFrame ()
{
// First get elapsed time from the virtual clock.
csTicks elapsed_time = vc->GetElapsedTicks ();
updateWater (elapsed_time);
// Now rotate the camera according to keyboard state
static int frame;
bool stop = false;
if(++frame == 100)
{
frame=0;
stop=true;
}
float speed = (elapsed_time / 1000.0) * (0.03 * 20);
int w = r3d->GetDriver2D ()->GetWidth()/2;
int h = r3d->GetDriver2D ()->GetHeight()/2;
int x = mouse->GetLastX();
int y = mouse->GetLastY();
bool moved = false;
if (hasfocus)
{
view->GetCamera ()->GetTransform ().RotateThis (CS_VEC_TILT_UP, (y-h) * 0.01);
view->GetCamera ()->GetTransform ().RotateOther (CS_VEC_ROT_RIGHT, (x-w) * 0.01);
r3d->GetDriver2D ()->SetMousePosition (w, h);
moved |= (y-h)!=0;
moved |= (x-w)!=0;
}
if (kbd->GetKeyState (CSKEY_UP))
{
view->GetCamera ()->Move (CS_VEC_FORWARD * speed * 25.0);
moved = true;
}
if (kbd->GetKeyState (CSKEY_DOWN))
{
view->GetCamera ()->Move (CS_VEC_BACKWARD * speed * 25.0);
moved = true;
}
if (kbd->GetKeyState (CSKEY_LEFT))
{
view->GetCamera ()->Move (CS_VEC_LEFT * speed * 25.0);
moved = true;
}
if (kbd->GetKeyState (CSKEY_RIGHT))
{
view->GetCamera ()->Move (CS_VEC_RIGHT * speed * 25.0);
moved = true;
}
if (kbd->GetKeyState (CSKEY_HOME))
{
view->GetCamera ()->Move (CS_VEC_UP * speed * 25.0);
moved = true;
}
if (kbd->GetKeyState (CSKEY_END))
{
view->GetCamera ()->Move (CS_VEC_DOWN * speed * 25.0);
moved = true;
}
/*
// dump camera position. might be useful for debugging.
if (moved)
{
csReversibleTransform ct = view->GetCamera()->GetTransform();
const csVector3 camPos = ct.GetOrigin();
const csVector3 camPlaneZ = ct.GetT2O().Col3 ();
csPrintf ("(%g,%g,%g) (%g,%g,%g)\n", camPos.x, camPos.y, camPos.z,
camPlaneZ.x, camPlaneZ.y, camPlaneZ.z);
}
*/
r3d->SetPerspectiveAspect (r3d->GetDriver2D ()->GetHeight ());
r3d->SetPerspectiveCenter (r3d->GetDriver2D ()->GetWidth ()/2,
r3d->GetDriver2D ()->GetHeight ()/2);
// Tell 3D driver we're going to display 3D things.
if (!r3d->BeginDraw (CSDRAW_3DGRAPHICS | CSDRAW_CLEARSCREEN | CSDRAW_CLEARZBUFFER))
return;
view->Draw ();
console->Draw3D ();
if (!r3d->BeginDraw (CSDRAW_2DGRAPHICS))
return;
console->Draw2D ();
//Display a little very informative message.
int glyphWidth, glyphHeight;
font->GetMaxSize (glyphWidth, glyphHeight);
int white = r3d->GetDriver2D ()->FindRGB (255, 255, 255);
r3d->GetDriver2D ()->Write (font,
1,
r3d->GetDriver2D ()->GetHeight () - (glyphHeight == -1? 20 : (glyphHeight+1)),
white, -1, "Press Space Bar to see a cool effect!");
if(stop)
stop=false;
}