// Cpw_02 [Cpw-OpenGL Teapot].nova
// Using namespace declarations.
using Library.CPW;
using Library.OpenGL;
// The application class.
class CpwTeapotApp
{
// Static data members.
private static uint teaList;
private static float rotX, rotY;
private static float rotationSpeed;
private static int drawFrame;
private static CPW cpw;
// Application class's "main" function.
public static void main( String[] args )
{
// Initialize the static data members.
rotX = rotY = 0.0f;
rotationSpeed = 4.0f;
drawFrame = 0;
// Output the keyboard contols.
Stream.write( "Keyboard controls:\r\n" +
"\tleft = rotate y-axis -ve\r\n" +
"\tright = rotate y-axis +ve\r\n" +
"\tup = rotate x-axis -ve\r\n" +
"\tdown = rotate x-axis +ve\r\n" +
"\tesc = exit\r\n" );
// Create a new CPW context object.
cpw = new CPW( );
// Initialize the CPW context object.
cpw.cpwInitContext( );
// Create a window.
cpw.cpwCreateWindowEx( "Cpw_02 [Cpw-OpenGL Teapot]",
100,
100,
640,
640 );
// Initialize OpenGL.
init( );
// Register the event callbacks.
cpw.cpwCreateCallback( createCallback );
cpw.cpwDisplayCallback( displayCallback );
cpw.cpwIdleCallback( idleCallback );
cpw.cpwReshapeCallback( reshapeCallback );
cpw.cpwSystemKeyboardCallback( systemKeyboardCallback );
// Enter the main rendering loop.
cpw.cpwMainLoop( );
// Shutdown the CPW context.
cpw.cpwFreeContext( );
}
// Initialize OpenGL.
private static void init( )
{
float[] position = { 0.0f, 3.0f, 3.0f, 0.0f };
float[] localView = { 0.0f };
float[] ambient = { 0.1745f, 0.01175f, 0.01175f };
float[] diffuse = { 0.61424f, 0.04136f, 0.04136f };
float[] specular = { 0.727811f, 0.626959f, 0.626959f };
OpenGL.glEnable( OpenGL.GL_DEPTH_TEST );
OpenGL.glDepthFunc( OpenGL.GL_LESS );
OpenGL.glLightfv( OpenGL.GL_LIGHT0, OpenGL.GL_POSITION, position );
OpenGL.glLightModelfv( OpenGL.GL_LIGHT_MODEL_LOCAL_VIEWER, localView );
OpenGL.glFrontFace( OpenGL.GL_CW );
OpenGL.glEnable( OpenGL.GL_LIGHTING );
OpenGL.glEnable( OpenGL.GL_LIGHT0 );
OpenGL.glEnable( OpenGL.GL_AUTO_NORMAL );
OpenGL.glEnable( OpenGL.GL_NORMALIZE );
OpenGL.glMaterialfv( OpenGL.GL_FRONT, OpenGL.GL_AMBIENT, ambient );
OpenGL.glMaterialfv( OpenGL.GL_FRONT, OpenGL.GL_DIFFUSE, diffuse );
OpenGL.glMaterialfv( OpenGL.GL_FRONT, OpenGL.GL_SPECULAR, specular );
OpenGL.glMaterialf( OpenGL.GL_FRONT, OpenGL.GL_SHININESS, 0.6f * 128.0f );
OpenGL.glClearColor( 0.5f, 0.5f, 0.5f, 0.0f );
OpenGL.glColor3f( 1.0f, 1.0f, 1.0f );
teapot( 14 );
}
// Window create / close event callback.
private static void createCallback( CPW cpw, uint winID, bool flag )
{
if ( flag == false )
{
// Window close event.
cpw.cpwDestroyWindow( winID );
}
}
// Window draw event callback.
private static void displayCallback( CPW cpw, uint winID )
{
// Check if there are any frames to render.
// Double buffering uses two frames.
if ( drawFrame < 2 )
{
// Render the teapot.
OpenGL.glClear( OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT );
OpenGL.glPushMatrix( );
OpenGL.glTranslatef( 0.0f, 0.0f, -5.0f );
OpenGL.glRotatef( rotY, 0.0f, 1.0f, 0.0f );
OpenGL.glRotatef( rotX, 1.0f, 0.0f, 0.0f );
OpenGL.glCallList( teaList );
OpenGL.glPopMatrix( );
drawFrame++;
}
cpw.cpwSwapWindowBuffers( winID );
}
// Idle event callback.
private static void idleCallback( CPW cpw )
{
if ( cpw.cpwKeyState( CPW.CPW_KEY_LEFT ) )
{
rotY -= rotationSpeed;
drawFrame = 0;
}
if ( cpw.cpwKeyState( CPW.CPW_KEY_RIGHT ) )
{
rotY += rotationSpeed;
drawFrame = 0;
}
if ( cpw.cpwKeyState( CPW.CPW_KEY_UP ) )
{
rotX -= rotationSpeed;
drawFrame = 0;
}
if ( cpw.cpwKeyState( CPW.CPW_KEY_DOWN ) )
{
rotX += rotationSpeed;
drawFrame = 0;
}
cpw.cpwPostRedisplay( );
}
// Window resize event callback.
private static void reshapeCallback( CPW cpw, uint winID, uint w, uint h )
{
OpenGL.glViewport( 0, 0, (int)w, (int)h );
OpenGL.glMatrixMode( OpenGL.GL_PROJECTION );
OpenGL.glLoadIdentity( );
OpenGL.glOrtho( -6.0, 6.0, -6.0, 6.0, -1.0, 10.0 );
OpenGL.glMatrixMode( OpenGL.GL_MODELVIEW );
OpenGL.glLoadIdentity( );
drawFrame = 0;
}
// System keyboard event callback.
private static void systemKeyboardCallback( CPW cpw,
uint id,
uint key,
uint state,
uint x,
uint y )
{
if ( key == CPW.CPW_KEY_ESCAPE )
{
cpw.cpwBreakMainLoop( );
}
}
// Create the teapot's geometry.
private static void teapot( int grid )
{
int[][] patchData =
{
{ 102, 103, 104, 105, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },
{ 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 },
{ 24, 25, 26, 27, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 },
{ 96, 96, 96, 96, 97, 98, 99, 100, 101, 101, 101, 101, 0, 1, 2, 3 },
{ 0, 1, 2, 3, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117 },
{ 118, 118, 118, 118, 124, 122, 119, 121, 123, 126, 125, 120, 40, 39, 38, 37 },
{ 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56 },
{ 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 28, 65, 66, 67 },
{ 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83 },
{ 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95 }
};
double[][] cpData =
{
{ 0.2, 0.0, 2.7 }, { 0.2, -0.112, 2.7 }, { 0.112, -0.2, 2.7 }, { 0.0, -0.2, 2.7 },
{ 1.3375, 0.0, 2.53125 }, { 1.3375, -0.749, 2.53125 }, { 0.749, -1.3375, 2.53125 },
{ 0.0, -1.3375, 2.53125 }, { 1.4375, 0.0, 2.53125 }, { 1.4375, -0.805, 2.53125 },
{ 0.805, -1.4375, 2.53125 }, { 0.0, -1.4375, 2.53125 }, { 1.5, 0.0, 2.4 }, { 1.5, -0.84, 2.4 },
{ 0.84, -1.5, 2.4 }, { 0.0, -1.5, 2.4 }, { 1.75, 0.0, 1.875 }, { 1.75, -0.98, 1.875 },
{ 0.98, -1.75, 1.875 }, { 0.0, -1.75, 1.875 }, { 2.0, 0.0, 1.35 }, { 2.0, -1.12, 1.35 },
{ 1.12, -2.0, 1.35 }, { 0.0, -2.0, 1.35 }, { 2.0, 0.0, 0.9 }, { 2.0, -1.12, 0.9 }, { 1.12, -2.0, 0.9 },
{ 0.0, -2.0, 0.9 }, { -2.0, 0.0, 0.9 }, { 2.0, 0.0, 0.45 }, { 2.0, -1.12, 0.45 }, { 1.12, -2.0, 0.45 },
{ 0.0, -2.0, 0.45 }, { 1.5, 0.0, 0.225 }, { 1.5, -0.84, 0.225 }, { 0.84, -1.5, 0.225 },
{ 0.0, -1.5, 0.225 }, { 1.5, 0.0, 0.15 }, { 1.5, -0.84, 0.15 }, { 0.84, -1.5, 0.15 },
{ 0.0, -1.5, 0.15 }, { -1.6, 0.0, 2.025 }, { -1.6, -0.3, 2.025 }, { -1.5, -0.3, 2.25 },
{ -1.5, 0.0, 2.25 }, { -2.3, 0.0, 2.025 }, { -2.3, -0.3, 2.025 }, { -2.5, -0.3, 2.25 },
{ -2.5, 0.0, 2.25 }, { -2.7, 0.0, 2.025 }, { -2.7, -0.3, 2.025 }, { -3.0, -0.3, 2.25 },
{ -3.0, 0.0, 2.25 }, { -2.7, 0.0, 1.8 }, { -2.7, -0.3, 1.8 }, { -3.0, -0.3, 1.8 }, { -3.0, 0.0, 1.8 },
{ -2.7, 0.0, 1.575 }, { -2.7, -0.3, 1.575 }, { -3.0, -0.3, 1.35 }, { -3.0, 0.0, 1.35 },
{ -2.5, 0.0, 1.125 }, { -2.5, -0.3, 1.125 }, { -2.65, -0.3, 0.9375 }, { -2.65, 0.0, 0.9375 },
{ -2.0, -0.3, 0.9 }, { -1.9, -0.3, 0.6 }, { -1.9, 0.0, 0.6 }, { 1.7, 0.0, 1.425 },
{ 1.7, -0.66, 1.425 }, { 1.7, -0.66, 0.6 }, { 1.7, 0.0, 0.6 }, { 2.6, 0.0, 1.425 },
{ 2.6, -0.66, 1.425 }, { 3.1, -0.66, 0.825 }, { 3.1, 0.0, 0.825 }, { 2.3, 0.0, 2.1 },
{ 2.3, -0.25, 2.1 }, { 2.4, -0.25, 2.025 }, { 2.4, 0.0, 2.025 }, { 2.7, 0.0, 2.4 },
{ 2.7, -0.25, 2.4 }, { 3.3, -0.25, 2.4 }, { 3.3, 0.0, 2.4 }, { 2.8, 0.0, 2.475 },
{ 2.8, -0.25, 2.475 }, { 3.525, -0.25, 2.49375 }, { 3.525, 0.0, 2.49375 },
{ 2.9, 0.0, 2.475 }, { 2.9, -0.15, 2.475 }, { 3.45, -0.15, 2.5125 }, { 3.45, 0.0, 2.5125 },
{ 2.8, 0.0, 2.4 }, { 2.8, -0.15, 2.4 }, { 3.2, -0.15, 2.4 }, { 3.2, 0.0, 2.4 }, { 0.0, 0.0, 3.15 },
{ 0.8, 0.0, 3.15 }, { 0.8, -0.45, 3.15 }, { 0.45, -0.8, 3.15 }, { 0.0, -0.8, 3.15 },
{ 0.0, 0.0, 2.85 }, { 1.4, 0.0, 2.4 }, { 1.4, -0.784, 2.4 }, { 0.784, -1.4, 2.4 }, { 0.0, -1.4, 2.4 },
{ 0.4, 0.0, 2.55 }, { 0.4, -0.224, 2.55 }, { 0.224, -0.4, 2.55 }, { 0.0, -0.4, 2.55 },
{ 1.3, 0.0, 2.55 }, { 1.3, -0.728, 2.55 }, { 0.728, -1.3, 2.55 }, { 0.0, -1.3, 2.55 },
{ 1.3, 0.0, 2.4 }, { 1.3, -0.728, 2.4 }, { 0.728, -1.3, 2.4 }, { 0.0, -1.3, 2.4 }, { 0.0, 0.0, 0.0 },
{ 1.425, -0.798, 0.0 }, { 1.5, 0.0, 0.075 }, { 1.425, 0.0, 0.0 }, { 0.798, -1.425, 0.0 },
{ 0.0, -1.5, 0.075 }, { 0.0, -1.425, 0.0 }, { 1.5, -0.84, 0.075 }, { 0.84, -1.5, 0.075 }
};
double[][][] p = createArray( 4, 4, 3 ),
q = createArray( 4, 4, 3 ),
r = createArray( 4, 4, 3 ),
s = createArray( 4, 4, 3 );
int i, j, k, l;
teaList = OpenGL.glGenLists( 1 );
OpenGL.glNewList( teaList, OpenGL.GL_COMPILE );
OpenGL.glPushMatrix( );
OpenGL.glRotatef( 270.0f, 1.0f, 0.0f, 0.0f );
for ( i = 0; i < 10; i++ )
{
for ( j = 0; j < 4; j++ )
{
for ( k = 0; k < 4; k++ )
{
for ( l = 0; l < 3; l++ )
{
p[ j ][ k ][ l ] = cpData[ patchData[ i ][ j * 4 + k ] ][ l ];
q[ j ][ k ][ l ] = cpData[ patchData[ i ][ j * 4 + ( 3 - k ) ] ][ l ];
if ( l == 1 )
{
q[ j ][ k ][ l ] *= -1.0;
}
if ( i < 6 )
{
r[ j ][ k ][ l ] = cpData[ patchData[ i ][ j * 4 + ( 3 - k ) ] ][ l ];
if ( l == 0 )
{
r[ j ][ k ][ l ] *= -1.0;
}
s[ j ][ k ][ l ] = cpData[ patchData[ i ][ j * 4 + k ] ][ l ];
if ( l == 0 )
{
s[ j ][ k ][ l ] *= -1.0;
}
if ( l == 1 )
{
s[ j ][ k ][ l ] *= -1.0;
}
}
}
}
}
OpenGL.glMap2d( OpenGL.GL_MAP2_VERTEX_3, 0.0, 1.0, 3, 4, 0.0, 1.0, 12, 4, p );
OpenGL.glEnable( OpenGL.GL_MAP2_VERTEX_3 );
OpenGL.glMapGrid2d( grid, 0.0, 1.0, grid, 0.0, 1.0 );
OpenGL.glEvalMesh2( OpenGL.GL_FILL, 0, grid, 0, grid );
OpenGL.glMap2d( OpenGL.GL_MAP2_VERTEX_3, 0.0, 1.0, 3, 4, 0.0, 1.0, 12, 4, q );
OpenGL.glEvalMesh2( OpenGL.GL_FILL, 0, grid, 0, grid );
if ( i < 6 )
{
OpenGL.glMap2d( OpenGL.GL_MAP2_VERTEX_3, 0.0, 1.0, 3, 4, 0.0, 1.0, 12, 4, r );
OpenGL.glEvalMesh2( OpenGL.GL_FILL, 0, grid, 0, grid );
OpenGL.glMap2d( OpenGL.GL_MAP2_VERTEX_3, 0.0, 1.0, 3, 4, 0.0, 1.0, 12, 4, s );
OpenGL.glEvalMesh2( OpenGL.GL_FILL, 0, grid, 0, grid );
}
}
OpenGL.glDisable( OpenGL.GL_MAP2_VERTEX_3 );
OpenGL.glPopMatrix( );
OpenGL.glEndList( );
}
// Create a three dimensional array of doubles with the specified sizes.
private static double[][][] createArray( uint size0, uint size1, uint size2 )
{
// Declare a local reference to the array to create.
double[][][] array;
// Create the first level of the array.
array = new double[ size0 ][][];
// Create the second levels of the array.
for ( uint i = 0; i < size0; i++ )
{
array[ i ] = new double[ size1 ][];
// Create the third levels of the array.
for ( uint j = 0; j < size1; j++ )
{
array[ i ][ j ] = new double[ size2 ];
// Populate the third level of the array.
for ( uint k = 0; k < size2; k++ )
{
array[ i ][ j ][ k ] = 0.0;
}
}
}
// Return the new array.
return array;
}
}