c ++ sdl 2: невозможно загрузить изображения - PullRequest
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c ++ sdl 2: невозможно загрузить изображения

0 голосов
/ 10 ноября 2019

Я делаю игру с SDL и c ++. Я пытаюсь вывести простое изображение на экран, но я не могу, я не знаю, почему Я не получаю ОШИБКУ , но я вижу только черный экран. мой код

game.h 

#ifndef GAME_H
#define GAME_H

#include <SDL2/SDL.h>

#include <iostream>


using namespace std;




class game
{

public:

    game();
    ~game();

    void init(char *title,int xpos, int ypos ,int xsize ,int ysize ,bool fullscreen);
    void loop();
    void input();
    void update();
    void render();
    SDL_Renderer* renderer;
    SDL_Window* window;



private:


    const int target_Fps = 60;
    const float TFEF = 1000/60; // time for each frame
    int delta;
    long int start_time;
    bool isrunning = true;
    int fps_counter = 0;
    unsigned int counter = 1;



};

#endif

game.cpp 

#include "game.h"

#include "player.h"

player* pla;

game::game()
{
    cout << "something"<<endl;
    if (SDL_Init(SDL_INIT_EVERYTHING) == 0)
    {



     cout << "another thing" << endl;

        init("game",10,15,500,500,false);
    }

loop();
}

game::~game()
{

}

void game::init(char *title,int xpos, int ypos ,int xsize ,int ysize ,bool fullscreen)
{

    window = SDL_CreateWindow(title, xpos,  ypos , xsize , ysize , fullscreen);
    renderer = SDL_CreateRenderer(window,-1,0);
    //SDL_SetRenderDrawColor(renderer, 0, 0,0, 255);
    SDL_RenderClear(renderer);
    SDL_RenderPresent(renderer);

    cout << "another another something" << endl;


    pla = new player(renderer,32,32);
    pla->init();



    //SDL_Texture* tex = IMG_LoadTexture(renderer,"res/pss.png");



}

void game::loop()
{





while(isrunning)
{
    start_time = SDL_GetTicks();

    input();

    update();

    render();

    delta = SDL_GetTicks() - start_time;
    if (delta < TFEF)
        SDL_Delay(TFEF - delta);

    fps_counter++;

    if (start_time >= 1000 * counter)
    {
        //cout <<"the FPS is : "<< fps_counter << endl;
        counter++;
        fps_counter = 0;

    }






}

}

void game::input()
{
    SDL_Event e;
    SDL_PollEvent(&e);
    if (e.type == SDL_QUIT)
        SDL_Quit();

}

void game::update(){}

void game::render()
{

    SDL_RenderClear(renderer);

    pla->render(renderer);

    SDL_RenderPresent(renderer);
}


gameobject::~gameobject(){};

player.h

#ifndef PLAYER_H
#define PLAYER_H

#include "gameobject.h"



class gameobject;

class player : public gameobject
{


public:

    void init() override;
    void tick() override;
    void render(SDL_Renderer* renderer) override;
    SDL_Renderer* renderer;
    player(SDL_Renderer* renderer,int pwidth,int pheight);
private:

    ~player() override;
    SDL_Texture* playertex;




};





#endif // PLAYER_H

player.cpp 

#include "player.h"

player::player(SDL_Renderer* renderer,int pwidth, int pheight)
{

 this->pos.w = pwidth;
 this->pos.h = pheight;
 this->pos.x = 0;
 this->pos.y = 0;


 this->renderer = renderer;




}

void player::init()
{

    this->playertex= IMG_LoadTexture(renderer,"res/pss.png");
    cout<<"int in player \n"<<endl;

    crop.x = 0;
    crop.y = 0;
    crop.w = 32;
    crop.h = 32;

    cout<<"pos x :"<<this->pos.x<<endl;
    cout<<"pos y : "<<this->pos.y<<endl;
    cout<<"pos w : "<<this->pos.w<<endl;
    cout<<"pos h : "<<this->pos.h<<endl;
    cout<<"crop x :"<<this->crop.x<<endl;
    cout<<"crop y :"<<this->crop.y<<endl;
    cout<<"crop w :"<<this->crop.w<<endl;
    cout<<"crop h : "<<this->crop.h<<endl;


}

void player::tick()
{

}

void player::render(SDL_Renderer *renderer)
{

/*
    cout<<"pos x :"<<this->pos.x<<endl;
    cout<<"pos y : "<<this->pos.y<<endl;
    cout<<"pos w : "<<this->pos.w<<endl;
    cout<<"pos h : "<<this->pos.h<<endl;
    cout<<"crop x :"<<this->crop.x<<endl;
    cout<<"crop y :"<<this->crop.y<<endl;
    cout<<"crop w :"<<this->crop.w<<endl;
    cout<<"crop h : "<<this->crop.h<<endl;
*/
 SDL_RenderCopy(renderer,playertex,&crop,&pos);
}


player::~player(){};

вот мои файлы

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