Оцените мой Doodle Jump

//Constants.h
#ifndef CONSTANTS_H
#define CONSTANTS_H
 
const int width = 500;
const int height = 650;
const int number_platform = 15;
const double graviti = 1.4;
const double jump = 25.0;
 
#endif CONSTANTS_H

//Game.h
#include "Platform.h"
#include "Constants.h"
#include "Player.h"
 
#ifndef GAME_H
#define GAME_H
 
class Game
{
public:
    Game();
    void collision();
    void TextOut(int x, int y, char *string);
    void loadTexture();
    void setAlpha(AUX_RGBImageRec* image);    //transparency
    void draw();
    void move();
    void keyUp(int key);
    void keyDown(int key);
private:
    Platform platforms[number_platform];
    AUX_RGBImageRec* fon;
    Player player;
    int score;
};
 
#endif GAME_H

//Game.cpp
#include "Game.h"
 
#include <glut.h>
#include <string>
#include <strstream>
 
Game::Game()
{
 
    for (int i = 0; i < number_platform; i++)
    {
        platforms[i].x = rand() % (width - 90);
        platforms[i].y = rand() % (height - 20);
    }
 
    player.x = width / 2;
    player.y = 14;
 
    player.dy = jump;
    score = 0;
}
 
void Game::loadTexture()
{
    fon = auxDIBImageLoad("fon.bmp");
 
    player.loadTexture();
    setAlpha(player.image);
    for (int i = 0; i < number_platform; i++)
    {
        platforms[i].loadTexture();
        setAlpha(platforms[i].image);
    }
}
 
void Game::draw()
{
    char* str = new char[]{0};
    std::strstream ss;
    ss << score;
    ss >> str;
 
    if (player.y > 0)
    {
        glRasterPos2d(0, 0);
        glDrawPixels(fon->sizeX, fon->sizeY, GL_RGB, GL_UNSIGNED_BYTE, fon->data);
 
        for (int i = 0; i < number_platform; i++)
        {
            platforms[i].draw();
        }
 
        player.draw();
 
        glColor3d(0, 0, 0);
        TextOut(width - 80, height - 20, str);  
    }
    else
    {
        glRasterPos2d(0, 0);
        glDrawPixels(fon->sizeX, fon->sizeY, GL_RGB, GL_UNSIGNED_BYTE, fon->data);
        glColor3d(0.5, 0, 0);
        TextOut(width / 2 - 50, height / 2, "Game over");
    }
}
 
void Game::setAlpha(AUX_RGBImageRec *image)
{
    int w = image->sizeX;
    int h = image->sizeY;
    unsigned char *m_pbits = new unsigned char[4 * w * h]; //3 для RGB +1 для альфа-канала.
 
    for (int i = 0; i<w*h; i++){
        m_pbits[4 * i + 0] = image->data[3 * i + 0];
        m_pbits[4 * i + 1] = image->data[3 * i + 1];
        m_pbits[4 * i + 2] = image->data[3 * i + 2];
        if ((image->data[3 * i + 0] == 0) && (image->data[3 * i + 1] == 0) && 
            (image->data[3 * i + 2] == 0))
            m_pbits[4 * i + 3] = 0;
        else
            m_pbits[4 * i + 3] = 255;
    }
 
    image->data = m_pbits;
}
 
void Game::collision()
{
    for (int i = 0; i < number_platform; i++)
    {
        if ((player.x + 25 <= platforms[i].x + platforms[i].image->sizeX) &&
            (player.x + 50 >= platforms[i].x) &&
            (player.y >= platforms[i].y) &&
            (player.y <= platforms[i].y + 10 + platforms[i].image->sizeY) && (player.dy < 0))
                player.dy = jump;
            
    }
}
 
void Game::move()
{
    player.move();
    collision();
    if (player.y == 400)
    {
        score += player.dy;
        for (int i = 0; i < number_platform; i++)
        {
            platforms[i].move(player.dy);
            if (platforms[i].y <= -14)
                platforms[i].spawn();
        }
    }
}
 
void Game::keyUp(int key)
{
    switch (key)
    {
    case GLUT_KEY_LEFT: player.left = false; break;
    case GLUT_KEY_RIGHT: player.right = false; break;
    }
}
 
void Game::keyDown(int key)
{
    switch (key)
    {
    case GLUT_KEY_LEFT: player.left = true; break;
    case GLUT_KEY_RIGHT: player.right = true; break;
    }
}
 
void Game::TextOut(int x, int y, char *string) {
    char *c; glRasterPos2f(x, y);
    for (c = string; *c != '\0'; c++) {
        glutBitmapCharacter(GLUT_BITMAP_TIMES_ROMAN_24, *c);
    }
}

Platform.h
#ifndef PLATFORM_H
#define PLATFORM_H
 
#include <GLAux.h>
 
class Game;
 
class Platform
{
public:
    Platform();
    void spawn();
    void draw();
    void loadTexture();
    void move(double dy);
 
    friend Game;
private:
    AUX_RGBImageRec* image;
    double x, y;
};
 
#endif PLATFORM_H

Platform.cpp
#include <cstdlib>
#include <time.h>
 
#include "Platform.h"
#include "Constants.h"
 
Platform::Platform()
{
    srand(time(NULL));
 
}
 
void Platform::spawn()
{
    y = rand() % 10 + height;
    x = rand() % (width - 68);
}
 
void Platform::draw()
{
    glEnable(GL_ALPHA_TEST);
    glAlphaFunc(GL_NOTEQUAL, 0);
    glRasterPos2d(x, y);
    glDrawPixels(image->sizeX, image->sizeY, GL_RGBA, GL_UNSIGNED_BYTE, image->data);
    glDisable(GL_ALPHA_TEST);
}
 
void Platform::loadTexture()
{
    image = auxDIBImageLoad("platform.bmp");
}
 
void Platform::move(double dy)
{
    y -= dy;
}

Player.h
#include <GLAux.h>
 
#ifndef PLAYER_H
#define PLAYER_H
 
class Game;
 
class Player
{
public:
    void loadTexture();
    void draw();
    void move();
    friend Game;
private:
    AUX_RGBImageRec* image;
    double x, y, dy;
    bool right, left;
};
 
#endif PLAYER_H

Player.cpp
#include "Player.h"
#include "Constants.h"
 
#include <glut.h>
 
void Player::loadTexture()
{
    image = auxDIBImageLoad("player.bmp");
}
 
void Player::draw()
{
    glEnable(GL_ALPHA_TEST);
    glAlphaFunc(GL_NOTEQUAL, 0);
    glRasterPos2d(x, y);
    glDrawPixels(image->sizeX, image->sizeY, GL_RGBA, GL_UNSIGNED_BYTE, image->data);
    glDisable(GL_ALPHA_TEST);
}
 
void Player::move()
{
    dy -= graviti;
    y += dy;
    if (y > 400) y = 400;
    if (y < -50) y = -50;
    if (left) x -= 8;
    if (right) x += 8;
    if (x > width - image->sizeX) x = width - image->sizeX;
    if (x < 0) x = 0;
}