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#include "Api.h"
#include "Level.h"
#include <SFML/Graphics.hpp>
#include <filesystem>
#include <iostream>
#include <lua.hpp>
const char *DEFAULT_PROC = "include/defaults.lua";
std::shared_ptr<Level> lvl;
struct LState {
lua_State *onkeypress;
lua_State *onupdate;
} typedef LState;
bool call_onkeypress(lua_State *L, char pressedKey);
bool call_onupdate(lua_State *L);
int main(int argc, char **argv) {
if (argc <= 1) {
return -1;
}
std::string lvl_pfx = argv[1];
std::filesystem::path mapFile{lvl_pfx + "/dng.map"};
std::filesystem::path luaFile{lvl_pfx + "/proc.lua"};
lvl = std::make_shared<Level>();
lvl->loadLevelFromFile(mapFile.c_str());
lua_State *L_lvl = luaL_newstate();
luaL_openlibs(L_lvl);
init_c_api(L_lvl);
lua_State *L_default = luaL_newstate();
luaL_openlibs(L_default);
init_c_api(L_default);
if (std::filesystem::exists(luaFile) &&
luaL_dofile(L_default, DEFAULT_PROC) != LUA_OK) {
std::cout << "Failed to load default proc" << std::endl;
luaL_error(L_default, "Error: %s", lua_tostring(L_default, -1));
return EXIT_FAILURE;
}
// Initialize to default
LState l_state = {.onkeypress = L_default, .onupdate = L_default};
if (std::filesystem::exists(luaFile) &&
luaL_dofile(L_lvl, luaFile.c_str()) == LUA_OK) {
// overwrite defaults
lua_getglobal(L_lvl, "onKeyPress");
if (lua_isfunction(L_lvl, -1)) {
l_state.onkeypress = L_lvl;
}
lua_getglobal(L_lvl, "onUpdate");
if (lua_isfunction(L_lvl, -1)) {
l_state.onupdate = L_lvl;
}
} else if (std::filesystem::exists(luaFile)) {
std::cout << "[C] No Good" << std::endl;
luaL_error(L_lvl, "Error: %s\n", lua_tostring(L_lvl, -1));
return EXIT_FAILURE;
}
bool quit = false;
char in;
do {
lvl->print();
std::cin >> in;
if (!call_onkeypress(l_state.onkeypress, in)) {
quit = true;
}
if (!call_onupdate(l_state.onupdate)) {
quit = true;
}
if (!quit && in == 'q') {
quit = true;
}
} while (!quit);
std::cout << "[C] Quit" << std::endl;
return EXIT_SUCCESS;
}
bool call_onkeypress(lua_State *L, char pressedKey) {
lua_getglobal(L, "onKeyPress");
if (!lua_isfunction(L, -1)) {
std::cout << "[C] Error onKeyPress not function | not found" << std::endl;
return false;
}
lua_pushinteger(L, pressedKey);
lua_pcall(L, 1, 1, 0);
return true;
}
bool call_onupdate(lua_State *L) {
lua_getglobal(L, "onUpdate");
if (!lua_isfunction(L, -1)) {
std::cout << "[C] Error onUpdate not function | not found" << std::endl;
return false;
}
lua_pcall(L, 0, 1, 0);
return true;
}
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