//---------------------------------------------------------------------------

//

//  File: OpenGLRotateModels.m

//

//  Abstract: Utility toolKit for rotatting models

//           

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//---------------------------------------------------------------------------

//------------------------------------------------------------------------

#import "OpenGLModelTypes.h"

#import "OpenGLRotateModels.h"

//------------------------------------------------------------------------

//------------------------------------------------------------------------

@implementation OpenGLRotateModels

//------------------------------------------------------------------------

- (id) init

{

    self = [super init];

    // Instantiate a Stanford Bunny model as a display list

    modelIsBunny = [[OpenGLBunnyModel alloc] initWithModelType:modelTypeSolid modelRange:1];

    // Instantiate a torus (a surface having genus one) as a display list

    modelIsTorus = [[OpenGLTorusModel alloc] initWithModelType:modelTypeSolid

                                                    modelRange:1

                                                    innerRadii:0.05

                                                    outerRadii:0.9 

                                                    sidesCount:64 

                                                    ringsCount:64];

    return  self;

} // init

//------------------------------------------------------------------------

- (void) dealloc

{

    // Delete the models

    [modelIsBunny dealloc];

    [modelIsTorus dealloc];

    // Notify the superclass

    [super dealloc];

} // dealloc

//------------------------------------------------------------------------

#pragma mark -- Rotating the models --

//------------------------------------------------------------------------

- (void) rotateSolidBunny

{

    glPushMatrix( );

        glRotatef( -angle, 0.0f, 1.0f, 0.25f );

        [modelIsBunny callList];

    glPopMatrix( );

} // rotateSolidBunny

//------------------------------------------------------------------------

- (void) rotateSolidTorus:(GLfloat)theAngle

{

    glPushMatrix( );

        glRotatef( theAngle, 0.0f, 1.0f, 0.5f );

        [modelIsTorus callList];

    glPopMatrix( );

} // rotateSolidTorus

//------------------------------------------------------------------------

- (void) rotateSolidTori

{

    [self rotateSolidTorus:(  2.25f * angle )];

    [self rotateSolidTorus:( -1.5f  * angle )];

    [self rotateSolidTorus:(  1.75f * angle )];

} // rotateSolidTori

//------------------------------------------------------------------------

- (void) rotateModels

{

    [self rotateSolidBunny];

    [self rotateSolidTori];

} // RotateModels

//------------------------------------------------------------------------

//

// We'll animate our models here.

//

//------------------------------------------------------------------------

- (void) rotate

{

    angle += 0.5f;

    [self rotateModels];

} // rotate

//------------------------------------------------------------------------

@end

//------------------------------------------------------------------------

//------------------------------------------------------------------------