// Called to draw scene
void RenderScene(void)
{
// Clear the window with current clearing color
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Save the matrix state and do the rotations
glPushMatrix();
glRotatef(xRot, 1.0f, 0.0f, 0.0f);
glRotatef(yRot, 0.0f, 1.0f, 0.0f);
glTranslatef(0.0f, 0.0f, zDistance);
DrawJet();
glPopMatrix();
glutSwapBuffers();
}
/****************************************************************************
Function:
WORD GOLDrawCallback( void )
Description:
This callback is performed at the beginning of the GOLDraw() function.
Processing that needs to be done on a regular basis and is not triggered
by a message should be done here.
Precondition:
None
Parameters:
None
Returns:
None
Remarks:
All graphic control adding and removing must be done from this function,
not from the message callback.
***************************************************************************/
WORD GOLDrawCallback( void )
{
switch (screenState)
{
// Display Start-up screen and play Welcome message
case SCREEN_START:
// Display the start up screen
PictCreate( ID_ICON, // ID
0,0,GetMaxX(),GetMaxY(), // dimension
PICT_DRAW, // will be displayed, has frame
1, // scale factor is x1
picture, // bitmap
NULL ); // default GOL scheme
screenState = SCREEN_START_DELAY;
break;
case SCREEN_START_DELAY:
if(enableSoundFlag)
{
while(speakerBusy());
// Speaker: Welcome to MPLAB Starter Kit for PIC24H MCU Demonstration
speakerActivate(SPEECH_ADDR_WELCOME, SPEECH_SIZE_WELCOME);
Delay(6000);
}
// Initialize the reference timer
TickInit();
// Initialize the accelerometer
AccelerometerInit();
screenState = SCREEN_DISPLAY_MAIN;
break;
// Display Main screen
case SCREEN_DISPLAY_MAIN:
ShowScreenMain();
screenState = SCREEN_MAIN;
displayChangeTime = tick;
break;
case SCREEN_MAIN:
break;
// Display Accelerometer Tri-axial Outputs graph
case SCREEN_DISPLAY_GRAPH:
ShowScreenGraph();
screenState = SCREEN_GRAPH;
displayChangeTime = tick;
break;
case SCREEN_GRAPH:
AccelerometerStop();
UpdateGraph();
break;
// Display connect External Sensor information
case SCREEN_DISPLAY_ES_INFO:
ShowScreenESInfo();
screenState = SCREEN_ES_INFO;
displayChangeTime = tick;
break;
case SCREEN_ES_INFO:
Delay(2000);
screenState = SCREEN_DISPLAY_ES_GRAPH;
break;
// Display External Sensor output graph
case SCREEN_DISPLAY_ES_GRAPH:
AccelerometerStop();
ShowScreenESGraph();
initESADC();
screenState = SCREEN_ES_GRAPH;
displayChangeTime = tick;
break;
case SCREEN_ES_GRAPH:
UpdateESGraph();
break;
// Display Orientation screen
case SCREEN_DISPLAY_ORIENTATION:
ShowScreenOrientation();
screenState = SCREEN_ORIENTATION;
displayChangeTime = tick;
break;
case SCREEN_ORIENTATION:
UpdateOrientation();
break;
// Display Games screen
case SCREEN_DISPLAY_GAMES:
ShowScreenGames();
screenState = SCREEN_GAMES;
displayChangeTime = tick;
break;
case SCREEN_GAMES:
break;
// Display Bomber Jet screen
case SCREEN_DISPLAY_JET:
ShowScreenJet();
AccelerometerStop();
AccelerometerInit();
if(enableSoundFlag)
{
while(speakerBusy());
speakerActivate(SPEECH_ADDR_START, SPEECH_SIZE_START);
while(speakerBusy());
}
screenState = SCREEN_JET;
displayChangeTime = tick;
break;
case SCREEN_JET:
DrawJet();
break;
// Display Snake screen
case SCREEN_DISPLAY_SNAKE:
ShowScreenSnake();
AccelerometerStop();
AccelerometerInit();
if(enableSoundFlag)
{
while(speakerBusy());
speakerActivate(SPEECH_ADDR_START, SPEECH_SIZE_START);
while(speakerBusy());
}
screenState = SCREEN_SNAKE;
displayChangeTime = tick;
break;
case SCREEN_SNAKE:
DrawSnake();
break;
// Display Score screen
case SCREEN_DISPLAY_SCORE:
ShowScreenScore();
if(enableSoundFlag)
{
while(speakerBusy());
speakerActivate(SPEECH_ADDR_GAME, SPEECH_SIZE_GAME);
while(speakerBusy());
speakerActivate(SPEECH_ADDR_OVER, SPEECH_SIZE_OVER);
}
displayChangeTime = tick;
screenState = SCREEN_SCORE;
break;
case SCREEN_SCORE:
break;
}
return 1; // Callback complete
}
