PyObject * _wrap_sprite_do_step (PyObject *self, PyObject *args) { PyObject *py_r; if (!PyArg_ParseTuple (args, "O:do_step", &py_r)) return NULL; GLASSERT (py_r && py_r != Py_None); KrSprite *r = AS_PTR (KrSprite, py_r); GLASSERT (r); r->DoStep(); RETURN_NONE }
void EdStateMovie::FrameTick() { KrImNode* image = shared->Engine()->Tree()->FindNodeById( 0 ); GLASSERT( image ); KrSprite* sprite = image->ToSprite(); GLASSERT( sprite ); sprite->DoStep(); int x = sprite->CompositeXForm(0).x.ToInt(); int y = sprite->CompositeXForm(0).y.ToInt(); KrRect screen = shared->Engine()->ScreenBounds(); GlFixed scale = movieNode->XScale(); GlFixed inverse = GlFixed( 1 ) / scale; if ( x < 0 ) sprite->SetPos( (inverse * screen.Width()).ToInt(), sprite->Y() ); if ( x > screen.Width() ) sprite->SetPos( 0, sprite->Y() ); if ( y < 0 ) sprite->SetPos( sprite->X(), (inverse*screen.Height()).ToInt() ); if ( y > screen.Height() ) sprite->SetPos( sprite->X(), 0 ); }
int main( int argc, char *argv[] ) { // code_d A random number generator. Random random; SDL_Surface* screen; const SDL_version* sdlVersion = SDL_Linked_Version(); if ( sdlVersion->minor < 2 ) { printf( "SDL version must be at least 1.2.0" ); exit( 254 ); } /* Initialize the SDL library */ if ( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_TIMER|SDL_INIT_NOPARACHUTE) < 0 ) { printf( "Couldn't initialize SDL: %s\n",SDL_GetError()); exit(255); } /* Create a display for the image */ screen = SDL_SetVideoMode( SCREENX, SCREENY, 0, SDL_SWSURFACE ); if ( screen == NULL ) { exit(3); } KrEngine* engine = new KrEngine( screen ); engine->Draw(); // Load the dat file. // The dat file was carefully created in the sprite // editor. Loading allows us access to the // MAGE, PARTICLE, and CARPET. if ( !engine->Vault()->LoadDatFile( "tutorial1.dat" ) ) { printf( "Error loading the tutorial dat file\n" ); exit( 255 ); } // Get the CARPET resource KrSpriteResource* carpetRes = engine->Vault()->GetSpriteResource( TUT1_CARPET ); GLASSERT( carpetRes ); // Create the carpet sprite and add it to the tree KrSprite* carpet = new KrSprite( carpetRes ); carpet->SetPos( SCREENX, SCREENY / 2 ); engine->Tree()->AddNode( 0, carpet ); // Get the MAGE resource, create the mage. KrSpriteResource* mageRes = engine->Vault()->GetSpriteResource( TUT1_MAGE ); GLASSERT( mageRes ); KrSprite* mage = new KrSprite( mageRes ); // Add the Mage as a child of the carpet. engine->Tree()->AddNode( carpet, mage ); SDL_Event event; bool done = false; // Start timing! SDL_SetTimer( TIMER_INTERVAL, TimerCallback ); while( !done && SDL_WaitEvent(&event) ) { if ( event.type == SDL_QUIT ) break; switch(event.type) { case SDL_KEYDOWN: { done = true; } break; case SDL_TIMER_EVENT: { // code_d Walk the list and move the particles // Move the carpet. carpet->DoStep(); if ( carpet->X() < 0 ) { carpet->SetPos( SCREENX, carpet->Y() ); } engine->Draw(); } break; default: break; } } delete engine; SDL_Quit(); return 0; }