断言 'fp_ ！= 0' 失败 (RapidJSON)

我正在制作一个可以从JSON和PNG文件加载图形的游戏引擎，我已经取得了一些真正的进展。唯一的问题是，我不知道如何一次加载多个精灵。我尝试了许多不同的方法，但我认为这是可行的方法。但是，在编译时，终端给了我这个错误：

home/thomas/Documents/project-repos/game/rapidjson/filereadstream.h：45： rapidjson：：FileReadStream：：FileReadStream(FILE*， char*， std：：size_t)： 断言 'fp_ ！= 0' 失败。

已中止(核心已转储)

我知道这通常意味着找不到 JSON 文件，但我已经确保所有内容都在工作目录中。

这是我的代码：

主.cpp：

#include <iostream>
#include <unistd.h>
#include <string>
#include <SFML/Graphics.hpp>
// The universal include file.
#include "include.hpp"
int main() {
// Declaration of the window.
sf::RenderWindow window(sf::VideoMode(640, 320), "Test Game", sf::Style::Close);
// Getting the background texture.
sf::Texture bkgd;
if(!bkgd.loadFromFile("../textures/generic.png")) {
ErrorLog("1", "../game.log");
window.close();
}
// Getting the map textures.
sf::Texture map;
if(!map.loadFromFile("../textures/textures.png")) {
ErrorLog("2", "../game.log");
window.close();
}
// Creating the background sprite.
sf::Sprite bkgdSp;
bkgdSp.setTexture(bkgd);
// Local variable to check if fullscreen is activated.
int fullScreen = 0;
// The window loop.
while(window.isOpen()) {
// Local variable that keeps the current window size.
sf::Vector2f winSize(window.getSize());
// Local variables storing the window ratios.
float scaleX = winSize.x / 640;
float scaleY = winSize.y / 320;
// Local variable to store the number of map tiles.
int mapNum = LoadNumber("../locations.json");
// Local array for the sprites.
sf::Sprite mapSp;
// Local array for the tiles.
tile mapTile;
// Load tile information.
mapTile = LoadTile("../locations.json", 1);
// Texture rectangle for the current sprite.
sf::IntRect mapRect(GetFileCoordinates(mapTile.type).x, GetFileCoordinates(mapTile.type).y, GetFileWidth(mapTile.type), GetFileHeight(mapTile.type));
// Setting the texture for the current sprite.
mapSp.setTexture(map);
mapSp.setTextureRect(mapRect);
// Scaling and repositioning the current sprite.
mapSp.setScale(scaleX, scaleY);
mapSp.setPosition(mapTile.x * scaleX, mapTile.y * scaleY);

// The event loop (only used to close the window.
sf::Event event;
while(window.pollEvent(event)) {
if(event.type == sf::Event::Closed) {
window.close();
}
}
// Change window size if F1 is pressed.
if(sf::Keyboard::isKeyPressed(sf::Keyboard::F1)) {
if(fullScreen == 0) {
window.create(sf::VideoMode(1280, 640), "Test Game", sf::Style::Close);
fullScreen = 1;
}else if(fullScreen == 1) {
window.create(sf::VideoMode(640, 320), "Test Game", sf::Style::Fullscreen);
fullScreen = 2;
}else if(fullScreen == 2) {
window.create(sf::VideoMode(640, 320), "Test Game", sf::Style::Close);
fullScreen = 0;
}
}
// Resizes the background to fit the window size.
bkgdSp.setScale(scaleX, scaleY);
// Drawing and displaying the window.
window.clear();
window.draw(bkgdSp);
window.draw(mapSp);
window.display();
usleep(7000);
}
return 0;
}

加载.cpp：

#include <iostream>
#include <SFML/System.hpp>
#include "rapidjson/document.h"
#include "rapidjson/filereadstream.h"
// The universal include file.
#include "include.hpp"
using namespace rapidjson;
// Function that loads tile values from the locations file.
tile LoadTile(std::string fileName, int number) {
tile output;
FILE* file = fopen(fileName.c_str(), "r");
char buffer[10000];
FileReadStream stream(file, buffer, 10000);
Document doc;
doc.ParseStream(stream);
std::string input = std::to_string(number);
Value& tileNumber = doc[input.c_str()];
output.x = tileNumber[0]["x"].GetInt();
output.y = tileNumber[1]["y"].GetInt();
output.type = tileNumber[2]["type"].GetString();
return output;
}
// Function that gets the current tile type's x and y coordinates.
sf::Vector2f GetFileCoordinates(std::string type) {
sf::Vector2f output;
FILE* file = fopen("../textures.json", "r");
char buffer[10000];
FileReadStream stream(file, buffer, 10000);
Document doc;
doc.ParseStream(stream);
Value& typeNumber = doc[type.c_str()];
output.x = typeNumber[0]["x"].GetInt();
output.y = typeNumber[1]["y"].GetInt();
return output;
}
// Function that gets the number of objects in the current map file.
int LoadNumber(std::string fileName) {
FILE* file = fopen(fileName.c_str(), "r");
char buffer[10000];
FileReadStream stream(file, buffer, 10000);
Document doc;
doc.ParseStream(stream);
int objCount = 1;
std::string strCount = std::to_string(objCount);
while(doc.HasMember(strCount.c_str())) {
objCount++;
strCount = std::to_string(objCount);
}
return objCount - 1;
}
// Function that gets the current tile type's width.
int GetFileWidth(std::string type) {
int output;
FILE* file = fopen("../textures.json", "r");
char buffer[10000];
FileReadStream stream(file, buffer, 10000);
Document doc;
doc.ParseStream(stream);
Value& typeNumber = doc[type.c_str()];
output = typeNumber[2]["width"].GetInt();
return output;
}
// Function that gets the current tile type's height.
int GetFileHeight(std::string type) {
int output;
FILE* file = fopen("../textures.json", "r");
char buffer[10000];
FileReadStream stream(file, buffer, 10000);
Document doc;
doc.ParseStream(stream);
Value& typeNumber = doc[type.c_str()];
output = typeNumber[3]["height"].GetInt();
return output;
}

包括.hpp：

#include <iostream>
#include <SFML/Graphics.hpp>
#include "rapidjson/document.h"
// Public struct declaring the "tile" data type. Uses the same characteristics as the tile locations file.
struct tile {
int x;
int y;
std::string type;
};
// In load.cpp.
tile LoadTile(std::string fileName, int number);
sf::Vector2f GetFileCoordinates(std::string type);
int LoadNumber(std::string fileName);
int GetFileWidth(std::string type);
int GetFileHeight(std::string type);
// In log.cpp
void ErrorLog(std::string code, std::string fileName);

位置.json：

{
"1": [{
"x": 32
}, {
"y": 32
}, {
"type": "water_c"
}],
"2": [{
"x": 32
}, {
"y": 64
}, {
"type": "dirt_c"
}]
}

textures.json：

{
"grass_c": [{
"x": 0
}, {
"y": 0
}, {
"width": 32
}, {
"height": 32
}],
"water_c": [{
"x": 32
}, {
"y": 0
}, {
"width": 32
}, {
"height": 32
}],
"sand_c": [{
"x": 64
}, {
"y": 0
}, {
"width": 32
}, {
"height": 32
}],
"dirt_c": [{
"x": 96
}, {
"y": 0
}, {
"width": 32
}, {
"height": 32
}],
"wood_c": [{
"x": 128
}, {
"y": 0
}, {
"width": 32
}, {
"height": 32
}],
"brick_c": [{
"x": 160
}, {
"y": 0
}, {
"width": 32
}, {
"height": 32
}]
}

任何提及"ErrorLog()"的内容都在另一个文件中，该文件已经过测试。在 Xubuntu 16.10 上使用 CMake (gcc) 编译，如果有人可以提供帮助。谢谢。

编辑

我已向所有 JSON 函数添加了新代码：

FILE* file = fopen("../textures.json", "r");
if(file == 0) {
std::cout << "GetFileHeight failed to load the file." << std::endl;
}

。更改它以适应每个功能。"GetFileHeight"似乎导致了错误。我认为这可能是关于打开文件，而不是在再次阅读之前关闭它？我不确定。