OpenGL实现3D迷宫游戏源代码详解

#include <stdio.h>      
#include <stdlib.h>
#include <GL/glut.h>
#include <math.h>
#include <iostream>
using namespace std;
void drawwalls(void);
void drawtop(void);
void drawball(void);


#define IDM_APPLICATION_EXIT    (101)
#define IDM_APPLICATION_TEXTURE (102)
#define IDM_APPLICATION_BANK    (103)
#define MAZE_HEIGHT (16)
#define MAZE_WIDTH  (16)
#define STARTING_POINT_X (13.5f);
#define STARTING_POINT_Y (1.5f);
#define STARTING_HEADING (90.0f);

float player_x = STARTING_POINT_X ;
float player_y = STARTING_POINT_Y ;
float player_h = STARTING_HEADING ;  // player's heading
float player_s = 0.0f;  // forward speed of the player
float player_m = 1.0f;  // speed multiplier of the player
float player_t = 0.0f;  // player's turning (change in heading)
float player_b = 0.0f;  // viewpoint bank (roll)
static float texcoordX=0.0f;

int   walllist=0;

int   mazelist=0;
int   balllist=0;
int  status=1;
bool searchroute=false;
bool keystate[4]={false,false,false,false};

char mazedata[MAZE_HEIGHT][MAZE_WIDTH] = {
        {'H','H','H','H','H','H','H','H','H','H','H','H','H','H','H','H'},
    {'H',' ',' ',' ',' ',' ',' ',' ','H',' ',' ',' ',' ',' ',' ','H'},
    {'H',' ','H',' ','H','H','H',' ','H',' ','H',' ',' ',' ',' ','H'},
    {'H',' ','H','H',' ',' ','H',' ','H','H',' ','H',' ','H',' ','H'},
    {'H',' ',' ',' ',' ',' ','H',' ',' ',' ',' ',' ',' ','H',' ','H'},
    {'H',' ','H','H','H','H','H','H','H','H',' ','H','H','H',' ','H'},
    {'H',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','H',' ',' ','H'},
    {'H',' ','H','H','H','H','H',' ','H','H','H',' ','H','H','H','H'},
    {'H',' ','H',' ',' ',' ','H',' ',' ',' ','H',' ',' ',' ',' ','H'},
    {'H',' ',' ',' ','H','H','H','H','H','H','H',' ',' ',' ',' ','H'},
    {'H',' ','H',' ',' ',' ','H',' ',' ',' ','H',' ',' ','H',' ','H'},
    {'H',' ','H','H','H','H','H',' ','H','H','H','H',' ','H',' ','H'},
    {'H',' ',' ',' ',' ',' ','H',' ',' ',' ',' ',' ',' ','H',' ','H'},
    {'H',' ',' ','H','H',' ','H','H','H','H',' ','H','H','H',' ','H'},
    {'H',' ',' ',' ','H',' ','H',' ',' ',' ',' ','H',' ',' ',' ','H'},
    {'H','H','H','H','H','H','H','H','H','H','H','H','H',' ','H','H'},
};
void myinit()
{
        glClearColor(0.5f, 0.5f, 0.5f, 0.0f);
        glColor3f(1.0,1.0,1.0);
        glEnable(GL_DEPTH_TEST);
        glEnable(GL_TEXTURE_2D);