//////////////////////////////////////////////////////// //Jason Kim //CSE 581 Lab 2 //Open GL // //Description: A 3D Open GL Scene with 2 Blue Cubes, a Blue Teapot, and a Red Floor, with a Green Robot with Red Eyes made from a Cone and Cubes. //Keys: w = wireframe, a = animate, f = forward, t = turn, q = quit, u = move robot head up, h = move robot head down // // //////////////////////////////////////////////////////// #include #include #include #include int press_x, press_y; int release_x, release_y; float x_angle = 0.0; float y_angle = 0.0; float scale_size = 1; int xform_mode = 0; int forward = 0; int forwardx = 0; int forwardz = 0; int turn = 0; int turnK = 1; int wireframe=0; int headangle=0; int anim=0; //int init =1; #define XFORM_NONE 0 #define XFORM_ROTATE 1 #define XFORM_SCALE 2 ////////////////////////////////////////////// void animate() { turn=turn+10; glutPostRedisplay(); //spins robot around } void donothing() { //donothing } void resetrobot() { turn=0; glutPostRedisplay(); } void draw_cube(float r, float g, float b) { if(wireframe==0) { glColor3f(r, g, b); glutSolidCube(1.0); // draw a solid cube } else if(wireframe==1) { glColor3f(r,g,b); glutWireCube(1.0); } } void draw_floor(float r, float g, float b) { if(wireframe==0) { glScalef(12, 0.1, 12); glColor3f(r, g, b); glutSolidCube(1.0); // draw a floor } else if(wireframe==1) { glScalef(12, 0.1, 12); glColor3f(r,g,b); glutWireCube(1.0); } } void draw_teapot(float r, float g, float b) { if(wireframe==0) { glColor3f(r, g, b); glutSolidTeapot(0.5); // draw a solid cube } else if(wireframe==1) { glColor3f(r, g, b); glutWireTeapot(0.5); // draw a solid cube } } //Draw The Head of the Robot, which is a Green Cone void draw_cone(float r, float g, float b) { if(wireframe==0) { glTranslatef(1,1,2); glColor3f(r, g, b); glutSolidCone(1,2,4,4); // draws the head glColor3f(0,0,0); glutPostRedisplay(); } else if(wireframe==1) { glTranslatef(1,1,2); glColor3f(r, g, b); glutWireCone(1,2,4,4); // draws the head glColor3f(0,0,0); glutPostRedisplay(); } } //Draw the Legs of the Robot void draw_legs(float r, float g, float b) { if(wireframe==0) { glTranslatef(1,1,2); glTranslatef(-1,-1,0); glScalef(0.5, 2, 0.5); glColor3f(r, g, b); glutSolidCube(1.0); // left leg glTranslatef(4,0,0); glutSolidCube(1.0); // right leg glutPostRedisplay(); } else if(wireframe==1) { glTranslatef(1,1,2); glTranslatef(-1,-1,0); glScalef(0.5, 2, 0.5); glColor3f(r, g, b); glutWireCube(1.0); // left leg glTranslatef(4,0,0); glutWireCube(1.0); // right leg glutPostRedisplay(); } } //Draw the Eyes of the Robot which are Red cubes void draw_eyes(float r, float g, float b) { if(wireframe==0) { glTranslatef(-0.5,0,1); glScalef(0.1, 0.1, 0.1); glColor3f(r, g, b); glutSolidCube(1.0); glTranslatef(10,0,0); glutSolidCube(1.0); // draw eyes } else if(wireframe == 1) { glTranslatef(-0.5,0,1); glScalef(0.1, 0.1, 0.1); glColor3f(r, g, b); glutWireCube(1.0); glTranslatef(10,0,0); glutWireCube(1.0); // draw eyes } } ////////////////////////////////////////////////////// void display() { glEnable(GL_DEPTH_TEST); glClearColor(0,0,0,1); glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(60, 1, .1, 100); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); gluLookAt(0,2,15,0,0,0,0,3,0); glRotatef(x_angle, 0, 1,0); glRotatef(y_angle, 1,0,0); glScalef(scale_size, scale_size, scale_size); //initialize scene //create scene glPushMatrix(); draw_cube(0,0,1); draw_floor(1,0,0); glPopMatrix(); glPushMatrix(); glTranslatef(3,0,0); draw_cube(0,0,1); glPopMatrix(); glTranslatef(0,1,0); draw_teapot(0,0,1); glPopMatrix(); //Object Motion glTranslatef(forwardx,0,forwardz); glRotatef(turn,0,1,0); //create object, Green 2 legged Robot with a Cone for a head and Red eyes glPushMatrix(); //3 Levels of Heirarchy glRotatef(headangle,1,0,0); draw_cone(0,1,0);//Head draw_eyes(1,0,0);//Eyes glPopMatrix(); glPushMatrix(); draw_legs(0,1,0);//Legs glPopMatrix(); //create Object glutSwapBuffers(); } /////////////////////////////////////////////////////////// void mymouse(int button, int state, int x, int y) { if (state == GLUT_DOWN) { press_x = x; press_y = y; if (button == GLUT_LEFT_BUTTON) xform_mode = XFORM_ROTATE; else if (button == GLUT_RIGHT_BUTTON) xform_mode = XFORM_SCALE; } else if (state == GLUT_UP) { xform_mode = XFORM_NONE; } } ///////////////////////////////////////////////////////// void mymotion(int x, int y) { if (xform_mode==XFORM_ROTATE) { x_angle += (x - press_x)/5.0; if (x_angle > 180) x_angle -= 360; else if (x_angle <-180) x_angle += 360; press_x = x; y_angle += (y - press_y)/5.0; if (y_angle > 180) y_angle -= 360; else if (y_angle <-180) y_angle += 360; press_y = y; } else if (xform_mode == XFORM_SCALE){ float old_size = scale_size; scale_size *= (1+ (y - press_y)/60.0); if (scale_size <0) scale_size = old_size; press_y = y; } glutPostRedisplay(); } /////////////////////////////////////////////////////////////// void mykey(unsigned char key, int x, int y) { switch(key) { case 'q': exit(1); break; //Move Forward case 'f': { if(turnK==1) { forwardz++; } if(turnK==2) { forwardx++; } if(turnK==3) { forwardz--; } if(turnK==4) { forwardx--; } //forward } break; //Turn 90 degrees to the left case 't': { turn=turn+90; if(turnK==1) { //forwardx=0; turnK=2; } else if(turnK==2) { //forwardz=0; turnK=3; } else if(turnK==3) { //forwardx=0; turnK=4; } else if(turnK==4) { //forwardx=0; turnK=1; } } break; //Toggles Animation. Makes Robot Spin in a circle case 'a': { //animate if(anim==0) { glutIdleFunc(animate); anim=1; } else { //toggles Animation off and resets Robot to Start Position. anim=0; glutIdleFunc(donothing); resetrobot(); } } break; //Part 3 Keys to move the moveable parts of Robot. Moves the Cone Head up and Down with u for down and h for up case 'u': { if(headangle < 30) headangle=headangle+10; //Move Head Down } break; case 'h': { if(headangle >-30) headangle=headangle-10; //Move Head Up } break; //Toggle WireFrame Mode case 'w': { if(wireframe==0)//wireframe mode wireframe=1; else wireframe=0; } break; } } /////////////////////////////////////////////////////////////// int main(int argc, char** argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_RGB|GLUT_DOUBLE|GLUT_DEPTH); glutInitWindowSize(600,600); glutCreateWindow("Jason Kim CSE581 Lab2"); glutDisplayFunc(display); glutMouseFunc(mymouse); glutMotionFunc(mymotion); glutKeyboardFunc(mykey); glutMainLoop(); }