#include<stdarg.h>
#include<GL/glut.h>
#include<stdio.h>
GLfloat x=0.5;
GLint submenu1,submenu2;
int count1=0,count2=0;
void stroke_output(GLfloat x, GLfloat y, char *format,...)
{
va_list args;
char buffer[200], *p;
va_start(args, format);
vsprintf(buffer, format, args);
va_end(args);
glPushMatrix();
glTranslatef(-3.2, y, 0);
glScaled(0.003, 0.002, 0.000);
for (p = buffer; *p; p++)
glutStrokeCharacter(GLUT_STROKE_ROMAN, *p);
glPopMatrix();
}
void d4()
{
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(0.2,0.4,0.3,1.0);
glLoadIdentity();
glTranslatef(0.0f,0.0f,-13.0f);
stroke_output(-2.0, 3.0, " INSTRUCTIONS ");
stroke_output(-2.0, 2.5, " Keyboard interactions : ");
stroke_output(-2.0, 2.0, " 'q' or 'Q' :Quit ");
stroke_output(-2.0, 1.5, " 'b' :Fly ");
stroke_output(-2.0,1.0, " 'B' :No fly");
stroke_output(-2.0, 0.5, " Mouse Interactions: ");
stroke_output(-2.0, 0.0, " Right click-Exit : End ");
stroke_output(-2.0,-0.5, " Right click-Flying Ball : Flying Ball Control ");
stroke_output(-2.0, -1.0, " Right click-color : Change Background color ");
stroke_output(-2.0,-2.0, " Press 'b' for next ");
// Display instructions
glFlush();
glutSwapBuffers();
}
void d6()
{
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(1.0,0.0,1.0,1.0);
glFlush();
glutSwapBuffers();
}
void d7()
{
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(0.0,1.0,1.0,1.0);
glFlush();
glutSwapBuffers();
}
void d8()
{
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(0.3,1.5,0.5,1.0);
glFlush();
glutSwapBuffers();
}
void flying(double ang)
{
glClear(GL_COLOR_BUFFER_BIT);
glLoadIdentity();
glTranslatef(0.0,-0.5,-13.0);
glRotatef(115,1.0,0.0,0.0);
glPushMatrix();
glRotatef(ang,0.0,0.0,1.0);
glScaled(2.9,0.2,0.1);
glTranslatef(0.0,0.0,10.0);
glColor3f(0.5,0.0,0.0);
glRotatef(ang,0.0,0.0,1.0);
glutSolidSphere(0.7,20,60);
glPopMatrix();
glPushMatrix();
glColor3f(0.0,0.0,1.0);
glRotatef(ang,0.0,0.0,1.0);
glScaled(0.2,2.9,0.1);
glTranslatef(0.0,0.0,10.0);
glRotatef(ang,0.0,0.0,1.0);
glutSolidSphere(0.7,20,60);
glPopMatrix();
glPushMatrix();
glRotatef(ang+50,0.0,0.0,1.0);
glScaled(2.9,0.2,0.1);
glTranslatef(0.0,0.0,10.0);
glRotatef(ang+50,0.0,0.0,1.0);
glColor3f(1.0,0.0,0.0);
glutSolidSphere(0.7,20,60);
glPopMatrix();
glPushMatrix();
glRotated(ang,0.0,1.0,0.0);
glTranslatef(0.05,-4.0,1.0);
glRotated(ang,0.0,1.0,0.0);
glutSolidSphere(0.3,20,60);
glPopMatrix();
glPushMatrix();
glColor3f(1.5,0.5,1.5);
glRotated(ang,0.0,1.0,0.0);
glTranslatef(0.0,1.6,0.0);
glRotated(ang,0.1,3.0,0.0);
glutSolidSphere(0.15,20,60);
glPopMatrix();
glFlush();
glutSwapBuffers();
}
void fly()
{
x+=6;
flying(x);
}
void slow()
{
x+=0.03;
flying(x);
}
void fast()
{
x+=15;
flying(x);
}
void fly1()
{
x+=8;
flying(x);
}
void fly2()
{
x+=10;
flying(x);
}
void fly3()
{
x+=12;
flying(x);
}
void fly4()
{
x+=14;
flying(x);
}
void flyd()
{
x+=6;
flying(x);
}
void flyd1()
{
x+=7;
flying(x);
}
void flyd2()
{
x+=8;
flying(x);
}
void flyd3()
{
x+=9;
flying(x);
}
void flyd4()
{
x+=11;
flying(x);
}
void nofly()
{
flying(0);
}
void Init()
{
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(30.0,(GLfloat)500/(GLfloat)500,1.0,200.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
void Display()
{
glClear(GL_COLOR_BUFFER_BIT );
glColor3f(1.5,0.5,1.9);
glLoadIdentity();
glTranslatef(0.0f,0.0f,-13.0f);
stroke_output(-2.0, 3.0, " * WEL COME * ");
stroke_output(-2.0, 2.5, " To ");
stroke_output(-2.0, 2.0, " CGOOP MINIPROJECT ");
stroke_output(-2.0, 1.5, "Project Name: FLYING BALL ");
stroke_output(-2.0, 1.0, "Created By: ");
stroke_output(-2.0, 0.5, " Dipali Bhabad 5");
stroke_output(-2.0, -0.1, " Surabhi Kadam 24");
stroke_output(-2.0, -0.6, " Tejal Malode");
stroke_output(-2.0, -1.2, " Girija Shinde 61 ");
stroke_output(-2.0, -1.7, " Press '2' for next ");
// Display information about the miniproject and its creators
glFlush();
glutSwapBuffers();
}
void Menu(int id)
{
switch(id)
{
case 1:exit(0);
break;
}
}
void flying_ball(int id)
{
switch(id)
{
case 2:glutIdleFunc(fly);
glutPostRedisplay();
break;
case 3:glutIdleFunc(nofly);
glutPostRedisplay();
break;
case 0:glutIdleFunc(slow);
glutPostRedisplay();
break;
case 9:glutIdleFunc(fast);
glutPostRedisplay();
break;
}
}
void Color(int id)
{
switch(id)
{
case 4:glutIdleFunc(d6);
glutPostRedisplay();
break;
case 5:glutIdleFunc(d7);
glutPostRedisplay();
break;
case 6: glutIdleFunc(d8);
glutPostRedisplay();
break;
glutSwapBuffers();
}
}
void mykey(unsigned char key,int x,int y)
// callback for the current window
{
if(key=='q'||key=='Q')
{
exit(0);
//terminates the program
}
if(key=='2')
{
glutIdleFunc(d4);
// takes the user to instruction page
}
if(key=='b')
{
glutIdleFunc(fly);
// object fly
}
if(key=='B')
{
glutIdleFunc(nofly);
//object does not fly
}
if(key=='i'||key=='I')
{
count1=count1+1;
if(count1==1)
glutIdleFunc(fly1);
if(count1==2)
glutIdleFunc(fly2);
if(count1==3)
glutIdleFunc(fly3);
if(count1==4)
glutIdleFunc(fly4);
// increases the speed of fan
}
if(key=='d'||key=='D')
{
count1=count1-1;
if(count1==4)
glutIdleFunc(flyd4);
if(count1==3)
glutIdleFunc(flyd3);
if(count1==2)
glutIdleFunc(flyd2);
if(count1==1)
glutIdleFunc(flyd1);
// decreases the speed of fan
}
}
int main(int argc, char *argv[])
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGB);
glutInitWindowSize(500,500);
glutInitWindowPosition(0,0);
glutCreateWindow("Flying ball");
glutDisplayFunc(Display);
glutKeyboardFunc(mykey);
submenu1= glutCreateMenu(flying_ball);
glutAddMenuEntry("fly",2);
glutAddMenuEntry("nofly",3);
glutAddMenuEntry("slow",0);
glutAddMenuEntry("fast",9);
submenu2=glutCreateMenu(Color);
glutAddMenuEntry("pink",4);
glutAddMenuEntry("blue",5);
glutAddMenuEntry("green",6);
glutCreateMenu(Menu);
glutAddMenuEntry("Exit",1);
glutAddSubMenu("flying_ball",submenu1);
glutAddSubMenu("Color",submenu2);
glutAttachMenu(GLUT_RIGHT_BUTTON);
Init();
glutMainLoop();
}
Write, Run & Share C++ code online using OneCompiler's C++ online compiler for free. It's one of the robust, feature-rich online compilers for C++ language, running on the latest version 17. Getting started with the OneCompiler's C++ compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as C++ and start coding!
OneCompiler's C++ online compiler supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample program which takes name as input and print your name with hello.
#include <iostream>
#include <string>
using namespace std;
int main()
{
string name;
cout << "Enter name:";
getline (cin, name);
cout << "Hello " << name;
return 0;
}
C++ is a widely used middle-level programming language.
When ever you want to perform a set of operations based on a condition If-Else is used.
if(conditional-expression) {
//code
}
else {
//code
}
You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.
Switch is an alternative to If-Else-If ladder.
switch(conditional-expression){
case value1:
// code
break; // optional
case value2:
// code
break; // optional
......
default:
code to be executed when all the above cases are not matched;
}
For loop is used to iterate a set of statements based on a condition.
for(Initialization; Condition; Increment/decrement){
//code
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while (condition) {
// code
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Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.
do {
// code
} while (condition);
Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.
return_type function_name(parameters);
function_name (parameters)
return_type function_name(parameters) {
// code
}