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<a href="http://developer.apple.com/">ADC Home</a> > <a href="../../referencelibrary/index.html">Reference Library</a> > <a href="../../samplecode/index.html">Sample Code</a> > <a href="../../samplecode/GraphicsImaging/index.html">Graphics & Imaging</a> > <a href="../../samplecode/GraphicsImaging/idxOpenGL-date.html">OpenGL</a> > <A HREF="javascript:location.replace('index.html');">GLSLShowpiece</A> >
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<h2>/Alien.h</h2>
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<p><strong>View Source Code:</strong>
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<option value="listing1.html">/Alien.cpp</option>
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<option value="listing9.html">/Exhibits/BlobbyCloud/BlobbyCloud.h</option>
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<option value="listing11.html">/Exhibits/BrickShader/BrickShader.h</option>
<option value="listing12.html">/Exhibits/BrickShader/BrickShader.m</option>
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<option value="listing30.html">/Exhibits/Eroded/Eroded.m</option>
<option value="listing31.html">/Exhibits/Fire/Fire.h</option>
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<option value="listing39.html">/Exhibits/Gooch/Gooch.h</option>
<option value="listing40.html">/Exhibits/Gooch/Gooch.m</option>
<option value="listing41.html">/Exhibits/Granite/Granite.h</option>
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<option value="listing47.html">/Exhibits/Julia/Julia.h</option>
<option value="listing48.html">/Exhibits/Julia/Julia.m</option>
<option value="listing49.html">/Exhibits/Lattice/Lattice.h</option>
<option value="listing50.html">/Exhibits/Lattice/Lattice.m</option>
<option value="listing51.html">/Exhibits/Life/Life.h</option>
<option value="listing52.html">/Exhibits/Life/Life.m</option>
<option value="listing53.html">/Exhibits/LightworkDesign-license.txt</option>
<option value="listing54.html">/Exhibits/Mandelbrot/Mandelbrot.h</option>
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<option value="listing58.html">/Exhibits/ParticleFountain/ParticleFountain.h</option>
<option value="listing59.html">/Exhibits/ParticleFountain/ParticleFountain.m</option>
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<option value="listing61.html">/Exhibits/ParticleSimple/ParticleSimple.m</option>
<option value="listing62.html">/Exhibits/ParticleWave/ParticleWave.h</option>
<option value="listing63.html">/Exhibits/ParticleWave/ParticleWave.m</option>
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<option value="listing68.html">/Exhibits/Polkadot3D/Polkadot3D.h</option>
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<option value="listing70.html">/Exhibits/RayTracer/RayTracer.h</option>
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<option value="listing80.html">/Exhibits/Toon/Toon.h</option>
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<option value="listing86.html">/Exhibits/VertexNoise/VertexNoise.h</option>
<option value="listing87.html">/Exhibits/VertexNoise/VertexNoise.m</option>
<option value="listing88.html">/Exhibits/Wobble/Wobble.h</option>
<option value="listing89.html">/Exhibits/Wobble/Wobble.m</option>
<option value="listing90.html">/Exhibits/Wood1/Wood1.h</option>
<option value="listing91.html">/Exhibits/Wood1/Wood1.m</option>
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<option value="listing93.html">/Exhibits/Wood2/Wood2.m</option>
<option value="listing94.html">/Exhibits/WoodShader/WoodShader.h</option>
<option value="listing95.html">/Exhibits/WoodShader/WoodShader.m</option>
<option value="listing96.html">/glut_teapot.c</option>
<option value="listing97.html">/glut_teapot.h</option>
<option value="listing98.html">/main.m</option>
<option value="listing99.html">/mat4.c</option>
<option value="listing100.html">/mat4.h</option>
<option value="listing101.html">/Noise3DTexture.c</option>
<option value="listing102.html">/Noise3DTexture.h</option>
<option value="listing103.html">/OpenGLView.h</option>
<option value="listing104.html">/OpenGLView.m</option>
<option value="listing105.html">/os.h</option>
<option value="listing106.html">/Surface.cpp</option>
<option value="listing107.html">/Surface.h</option>
<option value="listing108.html">/Textures/EarthImages.txt</option>
<option value="listing109.html">/Textures/envmaps.txt</option>
<option value="listing110.html">/UIController.h</option>
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<option value="listing112.html">/Vector.cpp</option>
<option value="listing113.html">/Vector.h</option></select>
</p>
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<!--googleon: index -->
<pre class="sourcecodebox">//
// Author: Philip Rideout
// Copyright: 2002-2006 3Dlabs Inc. Ltd. All rights reserved.
// License: see 3Dlabs-license.txt
//
#ifndef ALIEN_H
#define ALIEN_H
#ifdef __cplusplus
#include "Vector.h"
#include "Surface.h"
#include <list>
#include "os.h"
struct TJoint {
float x, y; // origin
float width; // ratio of the joint length to the bone length
float radius; // radius of the cylinder
float length0; // length of the first bone segment
float length1; // length of the second bone segment
float angle0; // ccw angle between the x-axis and the first bone segment
float angle1; // ccw angle between the two bone segments
// Rotation matrices for the two angles. Note that quaternions would be more efficient.
mat4 transform0;
mat4 transform1;
};
struct TAlienMovement {
TAlienMovement(int joint, float dps) : joint(joint), dps(dps) {}
int joint;
float dps; // degrees per second
};
typedef std::list<TAlienMovement> TAlienMovements;
struct TAlienMotion {
TAlienMotion(float seconds) : seconds(seconds) {}
float seconds;
TAlienMovements movements;
void add(int joint, float dps) { movements.push_back(TAlienMovement(joint, dps)); }
};
typedef std::list<TAlienMotion> TAlienMotions;
class TAlien {
public:
TAlien();
void Draw(GLhandleARB program_object) const;
void Update();
void Reset();
void Load(GLhandleARB program_object);
~TAlien();
void Flex(int index, float delta) const;
float& GetAngle(int index) const;
void SetAngle(int index, float theta) const;
TJoint& GetJoint(int index) const;
mat4& GetTransform(int index);
enum {
RightAntennaBase,
RightAntennaExt,
LeftAntennaBase,
LeftAntennaExt,
RightArmBase,
RightArmExt,
LeftArmBase,
LeftArmExt,
RightLegBase,
RightLegExt,
LeftLegBase,
LeftLegExt,
NumAngles,
};
static const int NumJoints = NumAngles / 2;
static const int NumSurfaces = NumJoints + 5;
private:
int draw(GLhandleARB program_object) const;
void animate();
GLuint weightLocation;
GLuint program;
TParametricSurface* surface[NumSurfaces];
mutable GLint index0; // integer pointing to the first transform matrix
mutable GLint index1; // integer pointing to the second transform matrix
mat4 transforms[NumAngles + 1]; // transform[0] is for the body; the others are for the joints
float countdown; // animation counter
TAlienMotions::iterator motion;
TAlienMotions animation;
};
class TRevolveBezier : public TParametricSurface {
public:
TRevolveBezier(int a, int b, int c, int d);
protected:
void Eval(vec2& domain, vec3& range);
vec2 p0, p1, p2, p3;
};
class TRevolveLine : public TParametricSurface {
public:
TRevolveLine(int a, int b);
protected:
void Eval(vec2& domain, vec3& range);
vec2 p0, p1;
};
class TEllipsoid : public TParametricSurface {
public:
TEllipsoid(float x, float y, float z) : center(x, y, z) {}
bool Flip(const vec2& domain);
void Eval(vec2& domain, vec3& range);
protected:
vec3 center;
static const vec2 radii;
};
class TAppendage : public TParametricSurface {
public:
TAppendage(const TJoint& joint, int location) : joint(joint), location(location) {}
void Eval(vec2& domain, vec3& range);
int CustomAttributeLocation() { return location; }
float CustomAttributeValue(const vec2& domain);
protected:
TJoint joint;
int location;
friend class TAlien;
};
#endif __cplusplus
#ifdef __cplusplus
extern "C" {
#endif
void* newAlien(GLhandleARB program_object, int time);
void updateDrawAlien(void* newAlien, GLhandleARB program_object, int time);
void deleteAlien(void* newAlien);
#ifdef __cplusplus
}
#endif
#endif
</pre>
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