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#include <iostream>
#include <GL/freeglut.h>
#include <GL/glut.h>
#include <ctime>
#include <cmath>
#include <cstdlib>
#include <vector>
using namespace std;
int X = 0, Y = 1, Z = 0;
GLfloat x = 0., y = .05, z = 0.;
GLfloat xC = 0.2, yC = 0.05, zC = 0.;
GLfloat xP = 0., yP = .6, zP = 0.;
GLfloat spin = .0;
GLfloat ambient_color[] = { .9, .0, .0, 1.0 };
GLfloat specular_color[] = { 1.0, .0, 1.0, 1.0 };
GLfloat light_position[] = { .5, .75, -1.0, 1.0 };
GLfloat black[] = { .0, .0, .0, 1.0 };
GLfloat white[] = { 1.0, 1.0, 1.0, 1.0 };
int MAX_HEIGHT = 10;
vector<GLfloat> coordinate;
bool start = true;
void init(void) {
glClearColor(0.0, 0.0, 0.0, 0.0);
glShadeModel(GL_SMOOTH);
glLightfv(GL_LIGHT0, GL_DIFFUSE, black);
glLightfv(GL_LIGHT0, GL_POSITION, light_position);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_DEPTH_TEST);
}
int startup(void)
{
int n = 0;
GLfloat height = 0.0;
srand(time(0));
GLfloat min = -.80, max = .80;
GLfloat range = (max - min);
for (int i = 0; i < 50; i++) {
height = static_cast<GLfloat>(1 + rand() % (MAX_HEIGHT + 1));
coordinate.push_back(height);
for (int j = 0; j < height; j++) {
coordinate.push_back(x);
coordinate.push_back(y);
coordinate.push_back(z);
n++;
y += .05;
}
x = RAND_MAX / range;
x = min + (rand() / x);
z = RAND_MAX / range;
z = min + (rand() / z);
y = .05;
}
for (int i = 0; i < coordinate.size(); i++) {
cout << coordinate[i] << endl;
}
cout << endl;
return n;
}
void display(void) {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
GLfloat min = -.001, max = .001;
GLfloat range = (max - min);
GLfloat a = RAND_MAX / range;
int count = 0;
int k = 0, h = 0, n = 0;
if (start) {
n = startup();
start = false;
}
else {
// Create ground
glPushMatrix();
glLightfv(GL_LIGHT0, GL_DIFFUSE, white);
glTranslatef(.0, .0, .0);
glScalef(2.5, .1, 2.5);
glRotatef(.0, X, Y, Z);
glutSolidCube(.75);
glPopMatrix();
// Create Loner car
glPushMatrix();
glLightfv(GL_LIGHT0, GL_DIFFUSE, black);
glTranslatef(xC, yC, zC);
glScalef(.5, .1, .5);
glutSolidCube(.05);
glPopMatrix();
// Begin Creation of Police Helicopter
glPushMatrix();
glLightfv(GL_LIGHT0, GL_DIFFUSE, ambient_color);
glTranslatef(xP, yP, zP);
glRotatef(spin, X, Y, Z);
glScalef(1., .25, 1.);
glutSolidCube(.05);
glPopMatrix();
srand(time(0));
xP += (min + (rand() / a));
zP += (min + (rand() / a));
if (xP >= .8) {
xP -= .1;
}
if (xP <= -.8) {
xP += .1;
}
if (zP >= .8) {
zP -= .1;
}
if (zP <= -.8) {
zP += .1;
}
// End of Creation
// Check coordinates of car with coordinates of buildings
do {
h = coordinate[k];
for (int i = 0; i < h; i++) {
if (i == 0) {
if ((xC >= (coordinate[k + 1] - .03) && xC <= (coordinate[k + 1] + .03)) && yC == coordinate[k + 2] && (zC >= (coordinate[k + 3] - .03) && zC <= (coordinate[k + 3] + .03))) {
xC -= .01;
zC -= .01;
}
}
k += 3;
}
if (k >= (coordinate.size() - 1))
break;
else
k++;
} while (true);
k = 0;
h = 0;
// Create buildings using stored heights and coordinates.
do {
h = coordinate[k];
for (int i = 0; i < h; i++) {
glPushMatrix();
glLightfv(GL_LIGHT0, GL_DIFFUSE, white);
glTranslatef(coordinate[k + 1], coordinate[k + 2], coordinate[k + 3]);
glutSolidCube(.05);
k += 3;
count++;
glPopMatrix();
}
if (k == (coordinate.size() - 1))
break;
else
k++;
} while (count != n);
}
glutSwapBuffers();
}
void spinDisplay(void) {
spin += 1.0;
if (spin > 360)
spin = 0.;
glutPostRedisplay();
}
void keyboard(unsigned char key, int x, int y)
{
switch (key)
{
case 'x': glRotatef(1., 1., 0., 0.); break;
case 'y': glRotatef(1., 0., 1., 0.); break;
case 'z': glRotatef(1., 0., 0., 1.); break;
case 'X': glRotatef(-1., 1., 0., 0.); break;
case 'Y': glRotatef(-1., 0., 1., 0.); break;
case 'Z': glRotatef(-1., 0., 0., 1.); break;
case 'w': zC += .01; break;
case 's': zC -= .01; break;
case 'a': xC -= .01; break;
case 'd': xC += .01; break;
}
glutPostRedisplay();
}
void main(int argc, char **argv) {
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
glutInitWindowSize(1150, 650); glutInitWindowPosition(0, 0);
glutCreateWindow("The City Loner - Mustapha Olokun");
init();
glutDisplayFunc(display);
glutKeyboardFunc(keyboard);
glutIdleFunc(spinDisplay);
glutMainLoop();
}
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