Notes

#include <iostream>
#include <GL/glut.h>
#include <string.h>
#define WIDTH 700
#define HEIGHT 600

using namespace std;
float pos = 250;
bool dir = true;
double arr[5000][4];
double x1 = 360, x2 = 380, x3 = 400;
int z = 0;
int i, a = 0;
int flag = 0;
float radius = 0.03;
int ptr = 0;
int faltu_bit = 1;
float color[3][3] = { { 1.0, 1.0, 1.0 }, { 1.0, 1.0, 0.0 }, { 0.0, 1.0, 0.0 } };

void drawText(char *str, float x, float y, int id)
{
int i;
int len = strlen(str);
//glLoadIdentity();
glColor3f(color[id][0], color[id][1], color[id][2]);
glRasterPos2f(x, y);
for (i = 0; i<len; i++)

glutBitmapCharacter(GLUT_BITMAP_TIMES_ROMAN_24, str[i]);

}


void init()
{
glClearColor(0.0, 0.0, 0.0, 1.0);
glMatrixMode(GL_PROJECTION);
gluOrtho2D(0.0, WIDTH, 0.0, HEIGHT);
memset(arr, 0, 5000);

glPointSize(20);

}

void resetAll()
{
memset(arr, 0, 5000);
z = 0;
}

///OPENGL MAPPING///
float getOpenGLX(int x)
{
double ox = x / (double)WIDTH*(WIDTH);
return ox;
}

float getOpenGLY(int y)
{
double oy = (1 - y / (double)HEIGHT)*HEIGHT;
return oy;
}



void drawBall(float x, float y)
{
glBegin(GL_POINTS);
glColor3f(1.0, 1.0, 0.0);
glVertex2f(x, y);

glEnd();
}

void draw()

{

int yon = 1;


if (arr[ptr + 1][0] - arr[ptr][0] > 0 && arr[ptr + 1][1] - arr[ptr][1] < 0){

x1 += 0.1;
x2 +=0.1;
x3 += 0.1;
pos -= 0.1;


}
glBegin(GL_QUADS);
glColor3f(1, 0, 0);
glVertex2f(x1, pos);
glColor3f(1, 0, 0);
glVertex2f(x1, pos + 10);
glColor3f(1, 0, 0);
glVertex2f(x1 + 10, pos + 10);
glColor3f(1, 0, 0);
glVertex2f(x1 + 10, pos);
glEnd();
//2.koyun
glBegin(GL_QUADS);
glColor3f(1, 0, 0);
glVertex2f(x2, pos);
glColor3f(1, 0, 0);
glVertex2f(x2, pos + 10);
glColor3f(1, 0, 0);
glVertex2f(x2 + 10, pos + 10);
glColor3f(1, 0, 0);
glVertex2f(x2 + 10, pos);
glEnd();
//3.koyun
glBegin(GL_QUADS);
glColor3f(1, 0, 0);
glVertex2f(x3, pos);
glColor3f(1, 0, 0);
glVertex2f(x3, pos + 10);
glColor3f(1, 0, 0);
glVertex2f(x3 + 10, pos + 10);
glColor3f(1, 0, 0);
glVertex2f(x3 + 10, pos);
glEnd();






//1.koyun


}

void drawLines()
{

glBegin(GL_LINE_STRIP);
glColor3f(1.0, 0.0, 0.0);

for (i = 0; i < z; i++)
{


glVertex2f(arr[i][0], arr[i][1]);

}


glEnd();

}




void addValue(int x, int y)
{



arr[z][0] = getOpenGLX(x);
arr[z++][1] = getOpenGLY(y);





}





void myDisplay()
{
glClear(GL_COLOR_BUFFER_BIT);

drawLines();


drawBall(arr[ptr][0], arr[ptr][1]);
draw();



glutSwapBuffers();
glutPostRedisplay();


glFlush();
}


void myMouseStat(int button, int state, int x, int y)
{
if (button == GLUT_LEFT_BUTTON && state == GLUT_DOWN)
{
if (!flag)
{

flag = 1;
}
}
else if (button == GLUT_LEFT_BUTTON && state == GLUT_UP)
{
if (flag)
{

flag = 0;
}
}

}


void myPressedMove(int x, int y)
{
if (flag)
{
addValue(x, y);
}
}


void myTimer(int t)
{

if (ptr != z - 1)
{



ptr++;



}




glutTimerFunc(115, myTimer, 0);

}

int main(int argc, char ** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB);
glutInitWindowPosition(100, 100);
glutInitWindowSize(WIDTH, HEIGHT);
glutCreateWindow("KoyunKurtarma");
init();

glutDisplayFunc(myDisplay);

glutMouseFunc(myMouseStat);
glutMotionFunc(myPressedMove);
glutTimerFunc(115, myTimer, 0);

glutMainLoop();
return 0;
}