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Copy pathBilliards.cpp
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Billiards.cpp
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// Billiards.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <assert.h>
#include <GL/glut.h>
#include <Cg/cg.h>
#include <Cg/cgGL.h>
#include "Cg_Matrix_Operations.h"
#define myPi 3.14159265358979323846
static CGcontext myCgContext;
static CGprofile myCgVertexProfile,
myCgFragmentProfile;
static CGprogram myCgVertexProgram,
myCgFragmentProgram;
static CGparameter myCgVertexParam_modelViewProj,
myCgFragmentParam_globalAmbient,
myCgFragmentParam_lightColor,
myCgFragmentParam_lightPosition,
myCgFragmentParam_eyePosition,
myCgFragmentParam_Ke,
myCgFragmentParam_Ka,
myCgFragmentParam_Kd,
myCgFragmentParam_Ks,
myCgFragmentParam_shininess;
static const char *myProgramName = "Billiards",
*myVertexProgramFileName = "FragmentLightening.cg",
*myVertexProgramName = "FragmentLightening",
*myFragmentProgramFileName = "PhongsLightening.cg",
*myFragmentProgramName = "PhongsLightening";
static float myLightAngle = -0.4;
static float myProjectionMatrix[16];
static float myGlobalAmbient[3] = { 0.1, 0.1, 0.1 };
static float myLightColor[3] = { 0.95, 0.95, 0.95 };
int angle=-90;
int stickangle;
float power = 3;
struct ball
{
float x;
float y;
float z;
float r;
float g;
float b;
float xspeed;
float zspeed;
int flag;
} w,r,b;
static int animating = 0;
int enablestick=1;
int zerospeed=1;
float friction = 0.01;
static float camera[3]={0,200,400};
static void checkForCgError(const char *situation)
{
CGerror error;
const char *string = cgGetLastErrorString(&error);
if (error != CG_NO_ERROR) {
printf("%s: %s: %s\n",
myProgramName, situation, string);
if (error == CG_COMPILER_ERROR) {
printf("%s\n", cgGetLastListing(myCgContext));
}
exit(1);
}
}
/* Forward declared GLUT callbacks registered by main. */
static void reshape(int width, int height);
static void display(void);
static void keyboard(unsigned char c, int x, int y);
static void menu(int item);
static void mouse(int button, int state, int x, int y);
int main(int argc, char **argv)
{
glutInitWindowSize(800, 800);
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH | GLUT_MULTISAMPLE);
glutInit(&argc, argv);
glutCreateWindow(myProgramName);
glutDisplayFunc(display);
glutKeyboardFunc(keyboard);
glutReshapeFunc(reshape);
glutMouseFunc(mouse);
glClearColor(0.1, 0.1, 0.1, 0); /* Gray background. */
glEnable(GL_DEPTH_TEST); /* Hidden surface removal. */
myCgContext = cgCreateContext();
checkForCgError("creating context");
cgGLSetDebugMode( CG_FALSE );
myCgVertexProfile = cgGLGetLatestProfile(CG_GL_VERTEX);
cgGLSetOptimalOptions(myCgVertexProfile);
checkForCgError("selecting vertex profile");
myCgVertexProgram =
cgCreateProgramFromFile(
myCgContext, /* Cg runtime context */
CG_SOURCE, /* Program in human-readable form */
myVertexProgramFileName, /* Name of file containing program */
myCgVertexProfile, /* Profile: OpenGL ARB vertex program */
myVertexProgramName, /* Entry function name */
NULL); /* No extra commyPiler options */
checkForCgError("creating vertex program from file");
cgGLLoadProgram(myCgVertexProgram);
checkForCgError("loading vertex program");
#define GET_VERTEX_PARAM(name) \
myCgVertexParam_##name = \
cgGetNamedParameter(myCgVertexProgram, #name); \
checkForCgError("could not get " #name " parameter");
GET_VERTEX_PARAM(modelViewProj);
myCgFragmentProfile = cgGLGetLatestProfile(CG_GL_FRAGMENT);
cgGLSetOptimalOptions(myCgFragmentProfile);
checkForCgError("selecting fragment profile");
myCgFragmentProgram =
cgCreateProgramFromFile(
myCgContext, /* Cg runtime context */
CG_SOURCE, /* Program in human-readable form */
myFragmentProgramFileName,
myCgFragmentProfile, /* Profile: latest fragment profile */
myFragmentProgramName, /* Entry function name */
NULL); /* No extra commyPiler options */
checkForCgError("creating fragment program from string");
cgGLLoadProgram(myCgFragmentProgram);
checkForCgError("loading fragment program");
#define GET_FRAGMENT_PARAM(name) \
myCgFragmentParam_##name = \
cgGetNamedParameter(myCgFragmentProgram, #name); \
checkForCgError("could not get " #name " parameter");
GET_FRAGMENT_PARAM(globalAmbient);
GET_FRAGMENT_PARAM(lightColor);
GET_FRAGMENT_PARAM(lightPosition);
GET_FRAGMENT_PARAM(eyePosition);
GET_FRAGMENT_PARAM(Ke);
GET_FRAGMENT_PARAM(Ka);
GET_FRAGMENT_PARAM(Kd);
GET_FRAGMENT_PARAM(Ks);
GET_FRAGMENT_PARAM(shininess);
/* Set light source color parameters once. */
cgSetParameter3fv(myCgFragmentParam_globalAmbient, myGlobalAmbient);
cgSetParameter3fv(myCgFragmentParam_lightColor, myLightColor);
stickangle=90+angle;
w.xspeed=0 ;
w.zspeed=0;
w.x=0;w.y=4;w.z=30;
w.r=1;w.g=1;w.b=1;
r.x=-34;r.y=4;r.z=-80;
r.r=1;r.g=0;r.b=0;
b.x=26;b.y=4;b.z=-40;
b.r=0;b.g=0;b.b=0;
w.flag=1;
r.flag=1;
b.flag=1;
w.xspeed=0;
w.zspeed=0;
r.zspeed=0;
r.xspeed=0;
b.xspeed=0;
b.zspeed=0;
enablestick=1;
printf("Billiards! By :\n");
printf("Prabhat Kumar Gupta\t 2007MCS2895\n");
printf("Nidhi Arora\t\t 2007MCS2913\t\n");
printf("-----------------------------------------------\n");
printf("\t\tControls\n");
printf("-----------------------------------------------\n");
printf("Control:\t\tAction\n");
printf("-----------------------------------------------\n");
printf("LeftClick/Spacebar\tEnable Stick and Strike\n");
printf("z\t\t\tRotate Stick Left\n");
printf("x\t\t\tRotate Stick Right\n");
printf("n\t\t\tZoom In\n");
printf("m\t\t\tZoom Out\n");
printf("1\t\t\tCamera 1\n");
printf("2\t\t\tCamera 2\n");
printf("3\t\t\tCamera 3\n");
printf("4\t\t\tCamera 4\n");
printf("-----------------------------------------------\n");
glutCreateMenu(menu);
glutAddMenuEntry("[ ] Animate", ' ');
glutAddMenuEntry("[ ] Camera1",'1');
glutAddMenuEntry("[ ] Camera2",'2');
glutAddMenuEntry("[ ] Camera3",'3');
glutAddMenuEntry("[ ] Camera4",'4');
glutAttachMenu(GLUT_RIGHT_BUTTON);
glutMainLoop();
return 0;
}
static void reshape(int width, int height)
{
double aspectRatio = (float) width / (float) height;
double fieldOfView = 40.0; /* Degrees */
/* Build projection matrix once. */
buildPerspectiveMatrix(fieldOfView, aspectRatio,
1.0, 1000.0, /* Znear and Zfar */
myProjectionMatrix);
glViewport(0, 0, width, height);
}
/* Build a row-major (C-style) 4x4 matrix transform based on the
parameters for gluPerspective. */
static void setBrassMaterial(void)
{
const float brassEmissive[3] = {0.0, 0.0, 0.0},
brassAmbient[3] = {0.33, 0.22, 0.03},
brassDiffuse[3] = {0.78, 0.57, 0.11},
brassSpecular[3] = {0.99, 0.91, 0.81},
brassShininess = 27.8;
cgSetParameter3fv(myCgFragmentParam_Ke, brassEmissive);
cgSetParameter3fv(myCgFragmentParam_Ka, brassAmbient);
cgSetParameter3fv(myCgFragmentParam_Kd, brassDiffuse);
cgSetParameter3fv(myCgFragmentParam_Ks, brassSpecular);
cgSetParameter1f(myCgFragmentParam_shininess, brassShininess);
}
static void setRedPlasticMaterial(void)
{
const float redPlasticEmissive[3] = {0.0, 0.0, 0.0},
redPlasticAmbient[3] = {0.0, 0.0, 0.0},
redPlasticDiffuse[3] = {0.5, 0.0, 0.0},
redPlasticSpecular[3] = {0.7, 0.6, 0.6},
redPlasticShininess = 32.0;
cgSetParameter3fv(myCgFragmentParam_Ke, redPlasticEmissive);
checkForCgError("setting Ke parameter");
cgSetParameter3fv(myCgFragmentParam_Ka, redPlasticAmbient);
checkForCgError("setting Ka parameter");
cgSetParameter3fv(myCgFragmentParam_Kd, redPlasticDiffuse);
checkForCgError("setting Kd parameter");
cgSetParameter3fv(myCgFragmentParam_Ks, redPlasticSpecular);
checkForCgError("setting Ks parameter");
cgSetParameter1f(myCgFragmentParam_shininess, redPlasticShininess);
checkForCgError("setting shininess parameter");
}
static void setTableMaterial(void)
{
const float redPlasticEmissive[3] = {0.0, 0.0, 0.0},
redPlasticAmbient[3] = {0.2, 0.5, 0.2},
redPlasticDiffuse[3] = {0.0, 0.5, 0.0},
redPlasticSpecular[3] = {0.0, 0.0, 0.0},
redPlasticShininess = 0.0;
cgSetParameter3fv(myCgFragmentParam_Ke, redPlasticEmissive);
checkForCgError("setting Ke parameter");
cgSetParameter3fv(myCgFragmentParam_Ka, redPlasticAmbient);
checkForCgError("setting Ka parameter");
cgSetParameter3fv(myCgFragmentParam_Kd, redPlasticDiffuse);
checkForCgError("setting Kd parameter");
cgSetParameter3fv(myCgFragmentParam_Ks, redPlasticSpecular);
checkForCgError("setting Ks parameter");
cgSetParameter1f(myCgFragmentParam_shininess, redPlasticShininess);
checkForCgError("setting shininess parameter");
}
static void setBallMaterial(float x, float y, float z)
{
const float redPlasticEmissive[3] = {0.0, 0.0, 0.0},
redPlasticAmbient[3] = {0.0, 0.0, 0.0},
redPlasticDiffuse[3] = {x, y, z},
redPlasticSpecular[3] = {0.7, 0.6, 0.6},
redPlasticShininess = 5.0;
cgSetParameter3fv(myCgFragmentParam_Ke, redPlasticEmissive);
checkForCgError("setting Ke parameter");
cgSetParameter3fv(myCgFragmentParam_Ka, redPlasticAmbient);
checkForCgError("setting Ka parameter");
cgSetParameter3fv(myCgFragmentParam_Kd, redPlasticDiffuse);
checkForCgError("setting Kd parameter");
cgSetParameter3fv(myCgFragmentParam_Ks, redPlasticSpecular);
checkForCgError("setting Ks parameter");
cgSetParameter1f(myCgFragmentParam_shininess, redPlasticShininess);
checkForCgError("setting shininess parameter");
}
static void setStickMaterial()
{
const float redPlasticEmissive[3] = {0.0, 0.0, 0.0},
redPlasticAmbient[3] = {0.0, 0.0, 0.0},
redPlasticDiffuse[3] = {0.9,0.4,0.12},
redPlasticSpecular[3] = {0,0,0},
redPlasticShininess = 0;
cgSetParameter3fv(myCgFragmentParam_Ke, redPlasticEmissive);
checkForCgError("setting Ke parameter");
cgSetParameter3fv(myCgFragmentParam_Ka, redPlasticAmbient);
checkForCgError("setting Ka parameter");
cgSetParameter3fv(myCgFragmentParam_Kd, redPlasticDiffuse);
checkForCgError("setting Kd parameter");
cgSetParameter3fv(myCgFragmentParam_Ks, redPlasticSpecular);
checkForCgError("setting Ks parameter");
cgSetParameter1f(myCgFragmentParam_shininess, redPlasticShininess);
checkForCgError("setting shininess parameter");
}
static void setEmissiveLightColorOnly(void)
{
const float zero[3] = {0.0, 0.0, 0.0};
cgSetParameter3fv(myCgFragmentParam_Ke, myLightColor);
checkForCgError("setting Ke parameter");
cgSetParameter3fv(myCgFragmentParam_Ka, zero);
checkForCgError("setting Ka parameter");
cgSetParameter3fv(myCgFragmentParam_Kd, zero);
checkForCgError("setting Kd parameter");
cgSetParameter3fv(myCgFragmentParam_Ks, zero);
checkForCgError("setting Ks parameter");
cgSetParameter1f(myCgFragmentParam_shininess, 0);
checkForCgError("setting shininess parameter");
}
float n[3];
void norm(float v0[], float v1[], float v2[])
{
double d;
float d1[3] = {v1[0] - v0[0], v1[1] - v0[1], v1[2] - v0[2]};
float d2[3] = {v2[0] - v0[0], v2[1] - v0[1], v2[2] - v0[2]};
n[0] = d1[1] * d2[2] - d1[2] * d2[1];
n[1] = d1[2] * d2[0] - d1[0] * d2[2];
n[2] = d1[0] * d2[1] - d1[1] * d2[0];
d = sqrt(n[1] * n[1] + n[2] * n[2] + n[3] * n[3]);
n[0] = n[0] / d;
n[1] = n[1] / d;
n[2] = n[2] / d;
}
void drawtable()
{
float p[121][2];
float v1[3] , v2[3], v3[3];
int i;
for(i=0; i<=120; i++)
{
p[i][0] = 8 * (cos((2 * myPi * i)/120));
p[i][1] = 8 * (sin((2 * myPi * i)/120));
}
glNormal3f(0, 1, 0);
glBegin(GL_TRIANGLE_FAN);
glVertex3f(0,0,0);
for (i=0; i<=30; i++)
{
glVertex3f(-93+p[i][0], 0, -183+p[i][1]);
}
for (i=90; i<120; i++)
{
glVertex3f(-93+p[i][0], 0, p[i][1]);
}
for(i=0; i<=30; i++)
{
glVertex3f(-93+p[i][0], 0, p[i][1]);
}
for (i=90; i<=120; i++)
{
glVertex3f(-93+p[i][0], 0, 183+p[i][1]);
}
for (i=60; i<=90; i++)
{
glVertex3f(93+p[i][0], 0, 183+p[i][1]);
}
for(i=30; i<60; i++)
{
glVertex3f(93+p[i][0], 0, p[i][1]);
}
for(i=60; i<=90; i++)
{
glVertex3f(93+p[i][0], 0, p[i][1]);
}
for (i=30; i<=60; i++)
{
glVertex3f(93+p[i][0], 0, -183+p[i][1]);
}
glVertex3f(-93+p[0][0], 0, -183+p[0][1]);
glEnd();
glBegin(GL_POLYGON);
v1[0] =85; v1[1] = 7; v1[2] = 167;
v2[0] = 85; v2[1] = 7; v2[2] = 16;
v3[0] = 93; v3[1] = 0; v3[2] = 8;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
glVertex3f(85, 7, 167);
glVertex3f(85, 7, 16);
glVertex3f(93, 0, 8);
glVertex3f(93, 0, 175);
glEnd();
glBegin(GL_POLYGON);
glNormal3f(0, 1, 0);
glVertex3f(85, 7, 167);
glVertex3f(93, 7, 175);
glVertex3f(93, 7, 8);
glVertex3f(85, 7, 16);
glEnd();
glBegin(GL_POLYGON);
v1[0] = 93; v1[1] = 0; v1[2] = 175;
v2[0] = 93; v2[1] = 7; v2[2] = 175;
v3[0] = 85; v3[1] = 7; v3[2] = 167;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
glVertex3f(93, 0, 175);
glVertex3f(93, 7, 175);
glVertex3f(85, 7, 167);
glEnd();
glBegin(GL_POLYGON);
v1[0] = 93; v1[1] = 0; v1[2] = 8;
v2[0] = 85; v2[1] = 7; v2[2] = 16;
v3[0] = 93; v3[1] = 7; v3[2] = 8;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
glVertex3f(93, 0, 8);
glVertex3f(85, 7, 16);
glVertex3f(93, 7, 8);
glEnd();
glBegin(GL_POLYGON);
v1[0] = 85; v1[1] = 7; v1[2] = -167;
v2[0] = 93; v2[1] = 0; v2[2] = -175;
v3[0] = 93; v3[1] = 0; v3[2] = -8;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
glVertex3f(85, 7, -167);
glVertex3f(93, 0, -175);
glVertex3f(93, 0, -8);
glVertex3f(85, 7, -16);
glEnd();
glBegin(GL_POLYGON);
glNormal3f(0, 1, 0);
glVertex3f(85, 7, -167);
glVertex3f(85, 7, -16);
glVertex3f(93, 7, -8);
glVertex3f(93, 7, -175);
glEnd();
glBegin(GL_POLYGON);
v1[0] = 93; v1[1] = 0; v1[2] = -167;
v2[0] = 85; v2[1] = 7; v2[2] = -167;
v3[0] = 93; v3[1] = 7; v3[2] = -175;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
glVertex3f(93, 0, -175);
glVertex3f(85, 7, -167);
glVertex3f(93, 7, -175);
glEnd();
glBegin(GL_POLYGON);
v1[0] = 93; v1[1] = 0; v1[2] = -8;
v2[0] = 93; v2[1] = 7; v2[2] = -8;
v3[0] = 85; v3[1] = 7; v3[2] = -16;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
glVertex3f(93, 0, -8);
glVertex3f(93, 7, -8);
glVertex3f(85, 7, -16);
glEnd();
glBegin(GL_POLYGON);
v1[0] = -85; v1[1] = 7; v1[2] = 167;
v2[0] = -93; v2[1] = 0; v2[2] = 175;
v3[0] = -93; v3[1] = 0; v3[2] = 8;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
glVertex3f(-85, 7, 167);
glVertex3f(-93, 0, 175);
glVertex3f(-93, 0, 8);
glVertex3f(-85, 7, 16);
glEnd();
glBegin(GL_POLYGON);
glNormal3f(0, 1, 0);
glVertex3f(-85, 7, 167);
glVertex3f(-85, 7, 16);
glVertex3f(-93, 7, 8);
glVertex3f(-93, 7, 175);
glEnd();
glBegin(GL_POLYGON);
v1[0] = -93; v1[1] = 0; v1[2] = 175;
v2[0] = -85; v2[1] = 7; v2[2] = 167;
v3[0] = -93; v3[1] = 7; v3[2] = 175;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
glVertex3f(-93, 0, 175);
glVertex3f(-85, 7, 167);
glVertex3f(-93, 7, 175);
glEnd();
glBegin(GL_POLYGON);
v1[0] = -93; v1[1] = 0; v1[2] = 8;
v2[0] = -93; v2[1] = 7; v2[2] = 8;
v3[0] = -93; v3[1] = 7; v3[2] = 16;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
glVertex3f(-93, 0, 8);
glVertex3f(-93, 7, 8);
glVertex3f(-85, 7, 16);
glEnd();
glBegin(GL_POLYGON);
v1[0] = -85; v1[1] = 7; v1[2] = -167;
v2[0] = -85; v2[1] = 7; v2[2] = -16;
v3[0] = -93; v3[1] = 0; v3[2] = -8;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
glVertex3f(-85, 7, -167);
glVertex3f(-85, 7, -16);
glVertex3f(-93, 0, -8);
glVertex3f(-93, 0, -175);
glEnd();
glBegin(GL_POLYGON);
glNormal3f(0, 1, 0);
glVertex3f(-85, 7, -167);
glVertex3f(-93, 7, -175);
glVertex3f(-93, 7, -8);
glVertex3f(-85, 7, -16);
glEnd();
glBegin(GL_POLYGON);
v1[0] = -93; v1[1] = 0; v1[2] = -175;
v2[0] = -93; v2[1] = 7; v2[2] = -175;
v3[0] = -85; v3[1] = 7; v3[2] = -167;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
glVertex3f(-93, 0, -175);
glVertex3f(-93, 7, -175);
glVertex3f(-85, 7, -167);
glEnd();
glBegin(GL_POLYGON);
v1[0] = -93; v1[1] = 0; v1[2] = -8;
v2[0] = -85; v2[1] = 7; v2[2] = -16;
v3[0] = -93; v3[1] = 7; v3[2] = -8;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
glVertex3f(-93, 0, -8);
glVertex3f(-85, 7, -16);
glVertex3f(-93, 7, -8);
glEnd();
glBegin(GL_POLYGON);
v1[0] = 85; v1[1] = 0; v1[2] = 183;
v2[0] = -85; v2[1] = 0; v2[2] = 183;
v3[0] = -77; v3[1] = 7; v3[2] = 175;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
glVertex3f(85, 0, 183);
glVertex3f(-85, 0, 183);
glVertex3f(-77, 7, 175);
glVertex3f(77, 7, 175);
glEnd();
glBegin(GL_POLYGON);
glNormal3f(0, 1, 0);
glVertex3f(-85, 7, 183);
glVertex3f(85, 7, 183);
glVertex3f(77, 7, 175);
glVertex3f(-77, 7, 175);
glEnd();
glBegin(GL_POLYGON);
v1[0] = 77; v1[1] = 7; v1[2] = 175;
v2[0] = 85; v2[1] = 7; v2[2] = 183;
v3[0] = 85; v3[1] = 0; v3[2] = 183;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
glVertex3f(77, 7, 175);
glVertex3f(85, 7, 183);
glVertex3f(85, 0, 183);
glEnd();
glBegin(GL_POLYGON);
v1[0] = -77; v1[1] = 7; v1[2] = 175;
v2[0] = -85; v2[1] = 0; v2[2] = 183;
v3[0] = -85; v3[1] = 7; v3[2] = 183;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
glVertex3f(-77, 7, 175);
glVertex3f(-85, 0, 183);
glVertex3f(-85, 7, 183);
glEnd();
glBegin(GL_POLYGON);
v1[0] = 85; v1[1] = 0; v1[2] = 183;
v2[0] = 77; v2[1] = 7; v2[2] = -175;
v3[0] = -77; v3[1] = 7; v3[2] = -175;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
glVertex3f(85, 0, -183);
glVertex3f(77, 7, -175);
glVertex3f(-77, 7, -175);
glVertex3f(-85, 0, -183);
glEnd();
glBegin(GL_POLYGON);
glNormal3f(0, 1, 0);
glVertex3f(-85, 7, -183);
glVertex3f(-77, 7, -175);
glVertex3f(77, 7, -175);
glVertex3f(85, 7, -183);
glEnd();
glBegin(GL_POLYGON);
v1[0] = 77; v1[1] = 7; v1[2] = -175;
v2[0] = 85; v2[1] = 0; v2[2] = -183;
v3[0] = 85; v3[1] = 7; v3[2] = -183;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
glVertex3f(77, 7, -175);
glVertex3f(85, 0, -183);
glVertex3f(85, 7, -183);
glEnd();
glBegin(GL_POLYGON);
v1[0] = -77; v1[1] = 7; v1[2] = -175;
v2[0] = -85; v2[1] = 7; v2[2] = -183;
v3[0] = -85; v3[1] = 0; v3[2] = -183;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
glVertex3f(-77, 7, -175);
glVertex3f(-85, 7, -183);
glVertex3f(-85, 0, -183);
glEnd();
}
void renderBitmapString(float x, float y, void *font, char *string)
{
char *c;
glRasterPos2f(x,y);
for (c=string; *c != '\0'; c++)
{
glutBitmapCharacter(font, *c);
}
}
void drawstick()
{ float p[100][2],q[100][2]; float v1[2],v2[2],v3[2];
int EDGES=60; int i;
glBegin(GL_POLYGON);
// glVertex3f(0.0,0.0,0.0);
for (i = 0; i <= EDGES; i++)
{
p[i][0]=cos((2*PI*i)/EDGES);
p[i][1]=sin((2*PI*i)/EDGES);
glVertex3f(p[i][0],4+p[i][1],0.0 );
glNormal3f(0,1,-1);
}
glEnd();
glBegin(GL_POLYGON);
// glVertex3f(0.0,0.0,0.0);
for (i = 0; i <= EDGES; i++)
{
q[i][0]=3*cos((2*PI*i)/EDGES);
q[i][1]=3*sin((2*PI*i)/EDGES);
glVertex3f(q[i][0],10+q[i][1],100);
glNormal3f(0,1,1);
}
glEnd();
glBegin(GL_QUAD_STRIP);
for (i = 0; i <= EDGES; i++)
{
glVertex3f(p[i][0], 4+p[i][1],0);
glVertex3f(q[i][0], 10+q[i][1],100);
}
glEnd();
for (i = 0; i <= EDGES; i++)
{
v1[0] =p[i][0]; v1[1] = 10+p[i][1]; v1[2] = 0;
v2[0] = q[i][0]; v2[1] = 10+q[i][1]; v2[2] = 100;
v3[0] = p[i+1][0]; v3[1] = 10+p[i][1]; v3[2] = 0;
norm(v1,v2,v3);
glNormal3f(n[0],n[1],n[2]);
}
glEnd();
}
static void reset()
{
w.flag=1;
r.flag=1;
b.flag=1;
w.xspeed=0;
w.zspeed=0;
r.zspeed=0;
r.xspeed=0;
b.xspeed=0;
b.zspeed=0;
enablestick=1;
animating = 0;
glutPostRedisplay();
}
void board()
{
if(w.x>81)
{
if((w.z<166.5 && w.z>3) || (w.z<-3 && w.z>-166.5))
{w.xspeed = w.xspeed*-1;w.flag=1;r.flag=1;b.flag=1;}
else {w.y=-5000;
glColor3f(1,0,0);
renderBitmapString(0,0, GLUT_BITMAP_TIMES_ROMAN_24, "Foul");
}
}
if(w.x<-81)
{
if((w.z<166.5 && w.z>3) || (w.z<-3 && w.z>-166.5))
{w.xspeed = w.xspeed*-1;w.flag=1;r.flag=1;b.flag=1;}
else { w.y=-5000;
glColor3f(1,0,0);
renderBitmapString(0,0, GLUT_BITMAP_TIMES_ROMAN_24, "Foul");
}
}
if(w.z>171)
{
if(w.x<77.5 && w.x>-77.5)
{w.zspeed = w.zspeed*-1;w.flag=1;r.flag=1;b.flag=1;}
else{ w.y=-5000;
glColor3f(1,0,0);
renderBitmapString(0,0, GLUT_BITMAP_TIMES_ROMAN_24, "Foul");
}
}
if(w.z<-171)
{
if(w.x<77.5 && w.x>-77.5)
{w.zspeed = w.zspeed*-1;w.flag=1;r.flag=1;b.flag=1;}
else { w.y=-5000;
glColor3f(1,0,0);
renderBitmapString(0,0, GLUT_BITMAP_TIMES_ROMAN_24, "Foul");
}
}
}
void redboard()
{
if(r.x>81)
{
if((r.z<166.5 && r.z>3) || (r.z<-3 && r.z>-166.5))
{r.xspeed = r.xspeed*-1;w.flag=1;r.flag=1;b.flag=1;}
else {r.y=-1500;
glColor3f(1,0,0);
renderBitmapString(0,0, GLUT_BITMAP_TIMES_ROMAN_24, "GOAL!");
}
}
if(r.x<-81)
{
if((r.z<166.5 && r.z>3) || (r.z<-3 && r.z>-166.5))
{r.xspeed = r.xspeed*-1;w.flag=1;r.flag=1;b.flag=1;}
else { r.y=-1500;
glColor3f(1,0,0);
renderBitmapString(0,0, GLUT_BITMAP_TIMES_ROMAN_24, "GOAL!");
}
}
if(r.z>171)
{
if(r.x<77.5 && r.x>-77.5)
{r.zspeed = r.zspeed*-1;w.flag=1;r.flag=1;b.flag=1;}
else { r.y=-1500;
glColor3f(1,0,0);
renderBitmapString(0,0, GLUT_BITMAP_TIMES_ROMAN_24, "GOAL!");
}
}
if(r.z<-171)
{
if(r.x<77.5 && r.x>-77.5)
{ r.zspeed = r.zspeed*-1;w.flag=1;r.flag=1;b.flag=1;}
else{ r.y=-1500;
glColor3f(1,0,0);
renderBitmapString(0,0, GLUT_BITMAP_TIMES_ROMAN_24, "GOAL!");
}
}
}
void blackboard()
{
if(b.x>81)
{
if((b.z<166.5 && b.z>3) || (b.z<-3 && b.z>-166.5))
{b.xspeed = b.xspeed*-1; w.flag=1;r.flag=1;b.flag=1;}
else { b.y=-1500;
glColor3f(1,0,0);
renderBitmapString(0,0, GLUT_BITMAP_TIMES_ROMAN_24, "GOAL!");
}
}
if(b.x<-81)
{
if((b.z<166.5 && b.z>3) || (b.z<-3 && b.z>-166.5))
{b.xspeed = b.xspeed*-1; w.flag=1;r.flag=1;b.flag=1;}
else{ b.y=-1500;
glColor3f(1,0,0);
renderBitmapString(0,0, GLUT_BITMAP_TIMES_ROMAN_24, "GOAL!");
}
}
if(b.z>171)
{
if(b.x<77.5 && b.x>-77.5)
{b.zspeed = b.zspeed*-1;w.flag=1;r.flag=1;b.flag=1;}
else{ b.y=-1500;
glColor3f(1,0,0);
renderBitmapString(0,0, GLUT_BITMAP_TIMES_ROMAN_24, "GOAL!");
}
}
if(b.z<-171)
{
if(b.x<77.5 && b.x>-77.5)
{b.zspeed = b.zspeed*-1; w.flag=1;r.flag=1;b.flag=1;}
else{ b.y=-1500;
glColor3f(1,0,0);
renderBitmapString(0,0, GLUT_BITMAP_TIMES_ROMAN_24, "GOAL!");
}
}
}
int moving;
void collision()
{
if (((w.x>r.x-9)&&(w.x<r.x+9)) && ((w.z>r.z-9)&&(w.z<r.z+9)) && ((r.flag==1)&&(w.flag==1)))
if (moving == 0)
{
r.xspeed=w.xspeed;
r.zspeed=w.zspeed;
w.xspeed=0;
w.zspeed=0;
r.flag=0;
w.flag=0;
b.flag=1;
moving=1;
}
else
{
w.xspeed=r.xspeed;
w.zspeed=r.zspeed;
r.xspeed=0;
r.zspeed=0;
r.flag=0;
w.flag=0;
b.flag=1;
moving=0;
}
else
if (((w.x>b.x-9)&&(w.x<b.x+9)) && ((w.z>b.z-9)&&(w.z<b.z+9)) && ((w.flag==1)&&(b.flag==1)))
if (moving == 0)
{
b.xspeed=w.xspeed;
b.zspeed=w.zspeed;
w.xspeed=0;
w.zspeed=0;
r.flag=1;
w.flag=0;
b.flag=0;
moving=2;
}
else
{
w.xspeed=b.xspeed;
w.zspeed=b.zspeed;
b.xspeed=0;
b.zspeed=0;
r.flag=1;
w.flag=0;
b.flag=0;
moving=0;
}
else
if (((b.x>r.x-9)&&(b.x<r.x+9)) && ((b.z>r.z-9)&&(b.z<r.z+9)) && ((b.flag==1)&&(r.flag==1)))
if (moving == 2)
{
r.xspeed=b.xspeed;
r.zspeed=b.zspeed;
b.xspeed=0;
b.zspeed=0;
r.flag=0;
w.flag=1;
b.flag=0;
moving=1;
}
else
{
b.xspeed=r.xspeed;
b.zspeed=r.zspeed;
r.xspeed=0;
r.zspeed=0;
r.flag=0;
w.flag=1;
b.flag=0;
moving=2;
}
}
static void display(void)
{
/* World-space positions for light and eye. */
const float eyePosition[4] = { camera[0], camera[1], camera[2], 1 };
const float lightPosition[4] = { 0,100,0, 1 };
float translateMatrix[16], rotateMatrix[16],
modelMatrix[16], invModelMatrix[16], viewMatrix[16],
modelViewMatrix[16], modelViewProjMatrix[16];
float objSpaceEyePosition[4], objSpaceLightPosition[4];
buildLookAtMatrix(eyePosition[0], eyePosition[1], eyePosition[2],
0, 0, 0,
0, 1, 0,
viewMatrix);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
cgGLBindProgram(myCgVertexProgram);
checkForCgError("binding vertex program");
cgGLEnableProfile(myCgVertexProfile);
checkForCgError("enabling vertex profile");
cgGLBindProgram(myCgFragmentProgram);
checkForCgError("binding fragment program");
cgGLEnableProfile(myCgFragmentProfile);
checkForCgError("enabling fragment profile");
/*** Render able ***/
setTableMaterial();
/* modelView = rotateMatrix * translateMatrix */
makeRotateMatrix(0, 1, 1, 1, rotateMatrix);
makeTranslateMatrix(0, 0 , 0, translateMatrix);
multMatrix(modelMatrix, translateMatrix, rotateMatrix);
/* invModelMatrix = inverse(modelMatrix) */
invertMatrix(invModelMatrix, modelMatrix);
/* Transform world-space eye and light positions to sphere's object-space. */
transform(objSpaceEyePosition, invModelMatrix, eyePosition);
cgSetParameter3fv(myCgFragmentParam_eyePosition, objSpaceEyePosition);
transform(objSpaceLightPosition, invModelMatrix, lightPosition);
cgSetParameter3fv(myCgFragmentParam_lightPosition, objSpaceLightPosition);
/* modelViewMatrix = viewMatrix * modelMatrix */
multMatrix(modelViewMatrix, viewMatrix, modelMatrix);
/* modelViewProj = projectionMatrix * modelViewMatrix */
multMatrix(modelViewProjMatrix, myProjectionMatrix, modelViewMatrix);
/* Set matrix parameter with row-major matrix. */
cgSetMatrixParameterfr(myCgVertexParam_modelViewProj, modelViewProjMatrix);
drawtable();
collision();
/*** Render White Ball ***/
setBallMaterial(w.r, w.g, w.b);
if (w.xspeed>0) { w.xspeed=w.xspeed-friction; if (w.xspeed<=0){ w.xspeed=0;}else w.x=w.x+(w.xspeed);}
else if(w.xspeed<0){ w.xspeed=w.xspeed+friction; if (w.xspeed>=0) {w.xspeed=0;}else w.x=w.x+(w.xspeed);}
else { w.xspeed = 0;
}
if (w.zspeed>0) {w.zspeed=w.zspeed-friction; if (w.zspeed<=0) {w.zspeed=0;}else w.z=w.z+(w.zspeed);}
else if (w.zspeed<0){ w.zspeed=w.zspeed+friction; if (w.zspeed>=0) {w.zspeed=0;}else w.z=w.z+(w.zspeed);}
else { w.zspeed=0;
}
if (w.xspeed==0 && w.zspeed==0)
{b.flag=1;
w.flag=1;
r.flag=1;
glutPostRedisplay();