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| #include "stdafx.h"
#include "stdio.h"
#include <windows.h>
#include <glut.h>
float px = -1.0, py = -0.5, pz = 0.0;
float px1 = 0.5, py1 = -0.5, pz1 = 0.0;
float px2 = -1.0, py2 = 0.5, pz2 = 0.0;
float px3 = 0.5, py3 = 0.5, pz3 = 0.0;
float active = 1;
void resize(int w, int h)
{
float ratio = w * 1.0 / h * 1.0;
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(50.0, ratio, 0.1, 100);
glMatrixMode(GL_MODELVIEW);
}
void legoel(float lx, float ly, float lz, float sw, float sh, float sz)
{
glColor3d(0.0, 1.0, 0.0);
glBegin(GL_QUADS);
glVertex3f(lx, ly, lz);
glVertex3f(lx + sw, ly, lz);
glVertex3f(lx + sw, ly + sh, lz);
glVertex3f(lx, ly + sh, lz);
glEnd();
glColor3d(0.0, 1.0, 0.0);
glBegin(GL_QUADS);
glVertex3f(lx, ly, lz + sz);
glVertex3f(lx + sw, ly, lz + sz);
glVertex3f(lx + sw, ly + sh, lz + sz);
glVertex3f(lx, ly + sh, lz + sz);
glEnd();
glColor3d(0.0, 1.0, 1.0);
glBegin(GL_QUADS);
glVertex3f(lx, ly + sh, lz);
glVertex3f(lx, ly + sh, lz + sz);
glVertex3f(lx + sw, ly + sh, lz + sz);
glVertex3f(lx + sw, ly + sh, lz);
glEnd();
glColor3d(1.0, 0.0, 1.0);
glBegin(GL_QUADS);
glVertex3f(lx, ly, lz);
glVertex3f(lx, ly, lz + sz);
glVertex3f(lx + sw, ly, lz + sz);
glVertex3f(lx + sw, ly, lz);
glEnd();
glColor3d(1.0, 0.0, 1.0);
glBegin(GL_QUADS);
glVertex3f(lx, ly, lz);
glVertex3f(lx, ly, lz + sz);
glVertex3f(lx, ly + sh, lz + sz);
glVertex3f(lx, ly + sh, lz);
glEnd();
glColor3d(3.0, 0.0, 1.0);
glBegin(GL_QUADS);
glVertex3f(lx + sw, ly, lz);
glVertex3f(lx + sw, ly, lz + sz);
glVertex3f(lx + sw, ly + sh, lz + sz);
glVertex3f(lx + sw, ly + sh, lz);
glEnd();
}
void lego(float lx, float ly, float cr, float cg, float cb)
{
glColor3d(cr, cg, cb);
glBegin(GL_QUADS);
glVertex3f(lx, ly, 0);
glVertex3f(lx + 0.5, ly, 0);
glVertex3f(lx + 0.5, ly + 0.3, 0);
glVertex3f(lx, ly + 0.3, 0);
glEnd();
glColor3d(cr, cg, cb);
glBegin(GL_QUADS);
glVertex3f(lx, ly, 0.2);
glVertex3f(lx + 0.5, ly, 0.2);
glVertex3f(lx + 0.5, ly + 0.3, 0.2);
glVertex3f(lx, ly + 0.3, 0.2);
glEnd();
glColor3d(1.0, 1.0, 1.0);
glBegin(GL_QUADS);
glVertex3f(lx, ly + 0.3, 0);
glVertex3f(lx, ly + 0.3, 0.2);
glVertex3f(lx + 0.5, ly + 0.3, 0.2);
glVertex3f(lx + 0.5, ly + 0.3, 0);
glEnd();
glColor3d(1.0, 1.0, 1.0);
glBegin(GL_QUADS);
glVertex3f(lx, ly, 0);
glVertex3f(lx, ly, 0.2);
glVertex3f(lx + 0.5, ly, 0.2);
glVertex3f(lx + 0.5, ly, 0);
glEnd();
glColor3d(0.0, 1.0, 1.0);
glBegin(GL_QUADS);
glVertex3f(lx, ly, 0);
glVertex3f(lx, ly, 0.2);
glVertex3f(lx, ly + 0.3, 0.2);
glVertex3f(lx, ly + 0.3, 0);
glEnd();
glColor3d(0.0, 0.0, 1.0);
glBegin(GL_QUADS);
glVertex3f(lx + 0.5, ly, 0);
glVertex3f(lx + 0.5, ly, 0.2);
glVertex3f(lx + 0.5, ly + 0.3, 0.2);
glVertex3f(lx + 0.5, ly + 0.3, 0);
glEnd();
legoel(lx + 0.05, ly + 0.3, 0.08, 0.05, 0.05, 0.05);
legoel(lx + 0.40, ly + 0.3, 0.08, 0.05, 0.05, 0.05);
legoel(lx + 0.23, ly + 0.3, 0.08, 0.05, 0.05, 0.05);
}
void light_and_material()
{
float light0_diffuse[] = { 1.0, 1.0, 1.0, 1.0 };
glLightfv(GL_LIGHT0, GL_DIFFUSE, light0_diffuse);
float light0_position[] = { 0.0, 0.0, 10.0, 0.0 };
glLightfv(GL_LIGHT0, GL_POSITION, light0_position);
float light0_ambient[] = { 0.2, 0.2, 0.2, 0.3 };
glLightfv(GL_LIGHT1, GL_AMBIENT, light0_ambient);
float mat_amb_diff[] = { 1.0, 1.0, 1.0 ,1.0 };
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, mat_amb_diff);
glMateriali(GL_FRONT, GL_SHININESS, 20);
}
void display(void)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glEnable(GL_DEPTH_TEST);
glEnable(GL_LIGHTING);
glEnable(GL_COLOR_MATERIAL);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glPushMatrix();
gluLookAt(0, 0, 5, 0, 0, 0, 0, 1, 0);
glEnable(GL_LIGHT0);
lego(px, py, 1, 1, 0);
lego(px1, py1, 0, 1, 0);
lego(px2, py2, 1, 0, 1);
lego(px3, py3, 0, 0, 1);
glDisable(GL_LIGHT0);
glPopMatrix();
glDisable(GL_DEPTH_TEST);
glDisable(GL_LIGHTING);
glDisable(GL_COLOR_MATERIAL);
glutSwapBuffers();
}
void keyboard(unsigned char key, int x, int y)
{
switch (key) {
case 'w':
if (active == 1) { py = py + 0.1; }
if (active == 2) { py1 = py1 + 0.1; }
if (active == 3) { py2 = py2 + 0.1; }
if (active == 4) { py3 = py3 + 0.1; }
break;
case 'a':
if (active == 1) { px = px - 0.1; }
if (active == 2) { px1 = px1 - 0.1; }
if (active == 3) { px2 = px2 - 0.1; }
if (active == 4) { px3 = px3 - 0.1; }
break;
case 's':
if (active == 1) { py = py - 0.1; }
if (active == 2) { py1 = py1 - 0.1; }
if (active == 3) { py2 = py2 - 0.1; }
if (active == 4) { py3 = py3 - 0.1; }
break;
case 'd':
if (active == 1) { px = px + 0.1; }
if (active == 2) { px1 = px1 + 0.1; }
if (active == 3) { px2 = px2 + 0.1; }
if (active == 4) { px3 = px3 + 0.1; }
break;
case 'q':
if (!(active == 4)) { active = active + 1; }
break;
case 'e':
if (!(active == 1)) { active = active - 1; }
break;
}
}
void arrow_keys(int keys, int x, int y)
{
switch (keys) {
case GLUT_KEY_UP:
glutFullScreen();
break;
case GLUT_KEY_DOWN:
glutReshapeWindow(500, 500);
break;
default:
break;
}
}
void main()
{
glutInitWindowPosition(100, 100);
glutInitWindowSize(500, 500);
glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
glutCreateWindow("LEGO");
light_and_material();
glutIdleFunc(display);
glutDisplayFunc(display);
glutReshapeFunc(resize);
glutKeyboardFunc(keyboard);
glutSpecialFunc(arrow_keys);
glutMainLoop();
} |
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