//
// cocos2d (incomplete) GLU implementation
//
// gluLookAt and gluPerspective from:
// http://jet.ro/creations (San Angeles Observation)
//
//
#import <OpenGLES/ES1/gl.h>
#import <math.h>
#import "OpenGL_Internal.h"
#include "glu.h"
void gluPerspective(GLfloat fovy, GLfloat aspect, GLfloat zNear, GLfloat zFar)
{
GLfloat xmin, xmax, ymin, ymax;
ymax = zNear * (GLfloat)tanf(fovy * (float)M_PI / 360);
ymin = -ymax;
xmin = ymin * aspect;
xmax = ymax * aspect;
glFrustumf(xmin, xmax,
ymin, ymax,
zNear, zFar);
}
void gluLookAt(GLfloat eyex, GLfloat eyey, GLfloat eyez,
GLfloat centerx, GLfloat centery, GLfloat centerz,
GLfloat upx, GLfloat upy, GLfloat upz)
{
GLfloat m[16];
GLfloat x[3], y[3], z[3];
GLfloat mag;
/* Make rotation matrix */
/* Z vector */
z[0] = eyex - centerx;
z[1] = eyey - centery;
z[2] = eyez - centerz;
mag = (float)sqrtf(z[0] * z[0] + z[1] * z[1] + z[2] * z[2]);
if (mag) {
z[0] /= mag;
z[1] /= mag;
z[2] /= mag;
}
/* Y vector */
y[0] = upx;
y[1] = upy;
y[2] = upz;
/* X vector = Y cross Z */
x[0] = y[1] * z[2] - y[2] * z[1];
x[1] = -y[0] * z[2] + y[2] * z[0];
x[2] = y[0] * z[1] - y[1] * z[0];
/* Recompute Y = Z cross X */
y[0] = z[1] * x[2] - z[2] * x[1];
y[1] = -z[0] * x[2] + z[2] * x[0];
y[2] = z[0] * x[1] - z[1] * x[0];
/* cross product gives area of parallelogram, which is < 1.0 for
* non-perpendicular unit-length vectors; so normalize x, y here
*/
mag = (float)sqrtf(x[0] * x[0] + x[1] * x[1] + x[2] * x[2]);
if (mag) {
x[0] /= mag;
x[1] /= mag;
x[2] /= mag;
}
mag = (float)sqrtf(y[0] * y[0] + y[1] * y[1] + y[2] * y[2]);
if (mag) {
y[0] /= mag;
y[1] /= mag;
y[2] /= mag;
}
#define M(row,col) m[col*4+row]
M(0, 0) = x[0];
M(0, 1) = x[1];
M(0, 2) = x[2];
M(0, 3) = 0.0f;
M(1, 0) = y[0];
M(1, 1) = y[1];
M(1, 2) = y[2];
M(1, 3) = 0.0f;
M(2, 0) = z[0];
M(2, 1) = z[1];
M(2, 2) = z[2];
M(2, 3) = 0.0f;
M(3, 0) = 0.0f;
M(3, 1) = 0.0f;
M(3, 2) = 0.0f;
M(3, 3) = 1.0f;
#undef M
glMultMatrixf(m);
/* Translate Eye to Origin */
glTranslatef(-eyex, -eyey, -eyez);
}
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IOS应用源码之Box2DCollision.rar
共276个文件
h:135个
m:81个
cpp:35个
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IOS应用源码之Box2DCollision.rar (276个子文件)
glu.c 2KB
base64.c 2KB
hahaha.caf 80KB
LICENSE.cocos2d 890B
LICENSE.cocosdenshion 1KB
b2World.cpp 23KB
b2ContactSolver.cpp 17KB
b2PrismaticJoint.cpp 15KB
b2LineJoint.cpp 14KB
b2Island.cpp 12KB
b2Distance.cpp 12KB
b2RevoluteJoint.cpp 12KB
b2TimeOfImpact.cpp 11KB
b2PulleyJoint.cpp 10KB
b2PolygonShape.cpp 10KB
b2Body.cpp 10KB
b2CollidePolygon.cpp 8KB
b2DynamicTree.cpp 8KB
b2Collision.cpp 7KB
b2GearJoint.cpp 7KB
b2WeldJoint.cpp 6KB
b2Contact.cpp 6KB
b2TOISolver.cpp 6KB
b2FrictionJoint.cpp 6KB
b2ContactManager.cpp 6KB
b2DistanceJoint.cpp 6KB
b2MouseJoint.cpp 5KB
b2BlockAllocator.cpp 5KB
b2Joint.cpp 4KB
b2CollideCircle.cpp 4KB
b2Fixture.cpp 4KB
b2BroadPhase.cpp 3KB
b2CircleShape.cpp 3KB
b2WorldCallbacks.cpp 2KB
b2PolygonAndCircleContact.cpp 2KB
b2PolygonContact.cpp 2KB
b2StackAllocator.cpp 2KB
b2CircleContact.cpp 2KB
b2Math.cpp 2KB
b2Settings.cpp 1KB
b2Body.h 20KB
CCCompatibility.h 15KB
b2Math.h 14KB
CCNode.h 13KB
CCDirector.h 12KB
CCIntervalAction.h 12KB
ccArray.h 12KB
CDOpenALSupport.h 11KB
CCSprite.h 10KB
CCTexture2D.h 9KB
b2World.h 8KB
b2Fixture.h 8KB
CDAudioManager.h 8KB
CCMenuItem.h 8KB
b2Collision.h 8KB
CocosDenshion.h 8KB
CCParticleSystem.h 8KB
b2WorldCallbacks.h 8KB
CCTransition.h 7KB
b2DynamicTree.h 7KB
b2Contact.h 6KB
b2BroadPhase.h 6KB
EAGLView.h 6KB
CCTiledGridAction.h 6KB
CCGrid3DAction.h 6KB
b2Joint.h 5KB
b2RevoluteJoint.h 5KB
b2Settings.h 5KB
b2PrismaticJoint.h 5KB
CGPointExtension.h 5KB
b2LineJoint.h 5KB
CCEaseAction.h 5KB
ccHashSet.h 4KB
CCTMXXMLParser.h 4KB
CCGridAction.h 4KB
CCTextureAtlas.h 4KB
OpenGL_Internal.h 4KB
CCTMXTiledMap.h 4KB
b2PulleyJoint.h 4KB
ccTypes.h 4KB
CCLayer.h 4KB
CCBitmapFontAtlas.h 4KB
CCTMXLayer.h 4KB
CCSpriteSheet.h 4KB
CCProtocols.h 4KB
FontLabelStringDrawing.h 4KB
b2PolygonShape.h 4KB
CCTextureCache.h 4KB
ccConfig.h 4KB
b2Distance.h 4KB
b2DistanceJoint.h 4KB
CCAction.h 4KB
CCSpriteFrame.h 4KB
CLScoreServerRequest.h 3KB
CLScoreServerPost.h 3KB
b2MouseJoint.h 3KB
b2Shape.h 3KB
FontManager.h 3KB
CCSpriteFrameCache.h 3KB
CCPVRTexture.h 3KB
共 276 条
- 1
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