ship.CG

#include <iostream>
#include<GL/gl.h>
#include <GL/glut.h>
using namespace std;

float _move = 0.0f;
void drawScene() {
    glClear(GL_COLOR_BUFFER_BIT);

	glLoadIdentity(); //Reset the drawing perspective
	glMatrixMode(GL_MODELVIEW);

    glColor3d(1,0,0);
    glPushMatrix();
	glTranslatef(_move, 0.0f, 0.0f);
    glBegin(GL_QUADS);
        glVertex3f(-.80f, -0.1f, 0.0f);
        glVertex3f(-.30f, -0.1f, 0.0f);
        glVertex3f(-.10f, 0.2f, 0.0f);
        glVertex3f(-1.0f, 0.2f, 0.0f);
	glEnd();

    glPopMatrix();


    glColor3d(.87,0.749,0.38);
    glPushMatrix();
	glTranslatef(_move, 0.0f, 0.0f);
    glBegin(GL_QUADS);
        glVertex3f(-.50f, 0.2f, 0.0f);
        glVertex3f(-.40f, 0.2f, 0.0f);
        glVertex3f(-.40f, 0.4f, 0.0f);
        glVertex3f(-.50f, 0.4f, 0.0f);
	glEnd();

    glPopMatrix();

    glColor3d(.87,0.749,0.38);
    glPushMatrix();
	glTranslatef(_move, 0.0f, 0.0f);
    glBegin(GL_QUADS);
        glVertex3f(-.70f, 0.2f, 0.0f);
        glVertex3f(-.60f, 0.2f, 0.0f);
        glVertex3f(-.60f, 0.6f, 0.0f);
        glVertex3f(-.70f, 0.6f, 0.0f);
	glEnd();

    glPopMatrix();



    glColor3d(.87,0.749,0.38);
    glPushMatrix();
	glTranslatef(_move, 0.0f, 0.0f);
    glBegin(GL_QUADS);
        glVertex3f(-.30f, 0.2f, 0.0f);
        glVertex3f(-.20f, 0.2f, 0.0f);
        glVertex3f(-.20f, 0.3f, 0.0f);
        glVertex3f(-.30f, 0.3f, 0.0f);
	glEnd();

    glPopMatrix();

    glBegin(GL_POLYGON);
    glColor3f(0,0,1);
   glVertex2i(-1.0f,-1.0f);
   glVertex2i(1.0f,-1.0f);
   glVertex2i(1.0f,-.50f);
   glVertex2i(-1.0f,-.50f);
    glEnd();


    glPushMatrix();
    glColor3d(.894,.91,.93);
	glTranslatef(-0.45f+_move, .45, 0.0);
    glutSolidSphere(.01,50,50);
    glEnd();
    glPopMatrix();

    glPushMatrix();
    glColor3d(.894,.91,.93);
	glTranslatef(-0.48f+_move, .52, 0.0);
    glutSolidSphere(.015,50,50);
    glEnd();
    glPopMatrix();

    glPushMatrix();
    glColor3d(.894,.91,.93);
	glTranslatef(-0.51f+_move, .59, 0.0);
    glutSolidSphere(.02,50,50);
    glEnd();
    glPopMatrix();



    glPushMatrix();
    glColor3d(.894,.91,.93);
	glTranslatef(-0.65f+_move, .64, 0.0);
    glutSolidSphere(.01,50,50);
    glEnd();
    glPopMatrix();

    glPushMatrix();
    glColor3d(.894,.91,.93);
	glTranslatef(-0.68f+_move, .72, 0.0);
    glutSolidSphere(.015,50,50);
    glEnd();
    glPopMatrix();

    glPushMatrix();
    glColor3d(.894,.91,.93);
	glTranslatef(-0.7f+_move, .79, 0.0);
    glutSolidSphere(.02,50,50);
    glEnd();
    glPopMatrix();


    glPushMatrix();
    glColor3d(.894,.91,.93);
	glTranslatef(-0.25f+_move, .35, 0.0);
    glutSolidSphere(.01,50,50);
    glEnd();
        glPopMatrix();

         glPushMatrix();
    glColor3d(.894,.91,.93);
	glTranslatef(-0.28f+_move, .42, 0.0);
    glutSolidSphere(.015,50,50);
    glEnd();
        glPopMatrix();

         glPushMatrix();
    glColor3d(.894,.91,.93);
	glTranslatef(-0.31f+_move, .49, 0.0);
    glutSolidSphere(.02,50,50);
    glEnd();
        glPopMatrix();



	//glFlush();        //Works only on single buffer
	glutSwapBuffers();
}

void update(int value) {

    _move += .02;
    if(_move-1.3 > 1.0)
    {
        _move = -1.0;
    }
	glutPostRedisplay(); //Notify GLUT that the display has changed

	glutTimerFunc(20, update, 0); //Notify GLUT to call update again in 20 milliseconds
}

int main(int argc, char** argv) {
	glutInit(&argc, argv);
	glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB);
	glutInitWindowSize(800, 800);
	glutCreateWindow("Transformation");
	glutDisplayFunc(drawScene);
	glutTimerFunc(20, update, 0); //Add a timer
	glutMainLoop();
	return 0;
}