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#include <SDL.h>
#include <lua.hpp>
#include <iostream>
#include <cstdlib>
#include <ctime>
#include <Windows.h>
#include <vector>
#include <memory>
#include "conio.h"
#include "game.h"
#include "LTimer.h"
#include "modbase.hpp"
using namespace std;
game* g_game = new game;
LTimer capTimer;
const int FPS = 60;
int SCREEN_TICK_PER_FRAME = 1000 / FPS;
// Load the objects from the plugin folder.
//
// Takes as a parameter a reference to a list of modules,
// which will be emptied and then refilled with handles to
// the modules loaded. These should be freed with the
// FreeLibrary() after use.
//
// Returns a list of Base*, contained in a smart pointer
// to ease memory deallocation and help prevent memory
// leaks.
std::vector<std::unique_ptr<ModBase>> getPlugins(std::vector<HINSTANCE>& modules) {
// A temporary structure to return.
std::vector<std::unique_ptr<ModBase>> ret;
// empty the modules list passed
modules.clear();
// Find the files contained in the 'plugins' folder
WIN32_FIND_DATA fileData;
HANDLE fileHandle = FindFirstFile(R"(mods\*.dll)", &fileData);
if (fileHandle == (void*)ERROR_INVALID_HANDLE ||
fileHandle == (void*)ERROR_FILE_NOT_FOUND) {
// If we couldn't find any plugins, quit gracefully,
// returning an empty structure.
return std::vector<std::unique_ptr<ModBase>>();
}
// Loop over every plugin in the folder and store in our
// temporary return list
do {
// Define the function types for what we are retrieving
typedef std::unique_ptr<ModBase>(__cdecl *ObjProc)(void);
typedef std::string(__cdecl *NameProc)(void);
typedef void(__cdecl *InitProc)(void);
// Load the library
HINSTANCE mod = LoadLibrary((R"(mods\)" + std::string(fileData.cFileName)).c_str());
if (!mod) {
// Couldn't load the library, cleaning module list and quitting.
for (HINSTANCE hInst : modules)
FreeLibrary(hInst);
throw std::runtime_error("Library " + std::string(fileData.cFileName) + " wasn't loaded successfully!");
}
// Get the function and the class exported by the DLL.
// If you aren't using the MinGW compiler, you may need to adjust
// this to cope with name mangling (I haven't gone into this here,
// look it up if you want).
ObjProc objFunc = (ObjProc)GetProcAddress(mod, "getObj");
NameProc nameFunc = (NameProc)GetProcAddress(mod, "getName");
InitProc initFunc = (InitProc)GetProcAddress(mod, "initDLL");
if (!objFunc || !nameFunc || !initFunc)
throw std::runtime_error("Invalid Plugin DLL: both 'getObj' , 'getName' and 'init' must be defined.");
// push the objects and modules into our vectors
ret.push_back(objFunc());
modules.push_back(mod);
clog << nameFunc() << endl;
initFunc();
} while (FindNextFile(fileHandle, &fileData));
clog << endl;
// Close the file when we are done
FindClose(fileHandle);
return ret;
}
//return a random string from a list of strings
string getRandStr()
{
int r = rand() % 9 + 1;
string returnStr;
switch (r)
{
case 1:
returnStr = "Spacey things!";
break;
case 2:
returnStr = "Like the Oregon Trail!";
break;
case 3:
returnStr = "3.1415926% Death!";
break;
case 4:
returnStr = "Herry has dysentery..";
break;
case 5:
returnStr = "Explosions!";
break;
case 6:
returnStr = "I\'m sorry, Dave. I\'m afraid I can\'t do that.";
break;
case 7:
returnStr = "It\'s a TRAP!";
break;
case 8:
returnStr = "Mineing For Gold!";
break;
case 9:
returnStr = "Get In The Ship!";
break;
case 10:
returnStr = "Space For Dummies!";
break;
default:
returnStr = "IMPOSSABREW";
break;
}
return returnStr;
}
int main(int argc, char *argv[])
{
std::vector<HINSTANCE> modules;
// Enter a block, to prevent the Base objects being
// deallocated after the modules are freed (which will
// cause your program to crash)
{
//random seed
srand(time(0));
string name = getRandStr();
//init game
if (!g_game->g_init(name.c_str(), SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOW_SHOWN))
{
//best error ever
cout << "well shit..." << endl;
_getch();
return 0;
}
else
{
//load media
if (!g_game->g_loadMedia())
{
//throw this
cout << "well shit..." << endl;
_getch();
return 0;
}
else
{
std::vector<std::unique_ptr<ModBase>> objs;
// Load the plugins using our function
try {
objs = getPlugins(modules);
}
catch (const std::exception& e) {
std::cerr << "Exception caught: " << e.what() << std::endl;
_getch();
return 1;
}
//successful load!
cout << "-------------------------\nSuccessfully loaded!" << endl;
while (!g_game->g_getStop())
{
capTimer.start();
g_game->g_handleEvents();
g_game->g_update();
g_game->g_preRender();
g_game->g_render();
for (auto& x : objs)
{
x->update();
x->render();
}
g_game->g_aftRender();
int frameTicks = capTimer.getTicks();
if (frameTicks < SCREEN_TICK_PER_FRAME)
{
SDL_Delay(SCREEN_TICK_PER_FRAME - frameTicks);
}
}
}
}
g_game->getFlieO();
//close program
for (HINSTANCE hInst : modules)
FreeLibrary(hInst);
delete g_game;
g_game = NULL;
return 0;
}
}
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