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// TOTL Studios (TM)
// Showdown of the Sticks - developed by Arslaan Pathan ([email protected])
#include "lua/lua.hpp"
#include <iostream>
// Prevents SDL from shitting the Windows cross-compiler and causing a "WinMain" error
// At least that's what I think - I'm not sure what this does but if I remove it the code won't work
// If it ain't broke don't fix it
#define SDL_MAIN_HANDLED
#include <SDL2/SDL.h>
#include <SDL2/SDL_ttf.h>
#include <SDL2/SDL_image.h>
#include <SDL2/SDL_mixer.h>
#define WIDTH 1280
#define HEIGHT 720
#define KEYSYM event.key.keysym.sym
SDL_Window* window = nullptr;
SDL_Renderer* renderer = nullptr;
SDL_Event event;
SDL_Rect rect = {WIDTH/2, HEIGHT/2, 50, 50};
SDL_Texture* background_texture = nullptr;
int l_move_rect(lua_State* L) {
int dx = luaL_checkinteger(L, 1);
int dy = luaL_checkinteger(L, 2);
rect.x += dx;
rect.y += dy;
return 0;
}
int l_keycode_from_string(lua_State* L) {
const char* keystr = luaL_checkstring(L, 1);
SDL_Scancode sc = SDL_GetScancodeFromName(keystr);
if (sc == SDL_SCANCODE_UNKNOWN) {
lua_pushinteger(L, -1);
} else {
lua_pushinteger(L, sc + 1);
}
return 1;
}
int l_set_background_image(lua_State* L) {
const char* bgImagePath = luaL_checkstring(L, 1);
SDL_Surface* temp_surface = IMG_Load(bgImagePath);
if (!temp_surface) {
std::cerr << "Failed to load image: " << IMG_GetError() << std::endl;
return 0;
}
if (background_texture) {
SDL_DestroyTexture(background_texture);
}
background_texture = SDL_CreateTextureFromSurface(renderer, temp_surface);
SDL_FreeSurface(temp_surface);
if (!background_texture) {
std::cerr << "Failed to create texture: " << SDL_GetError() << std::endl;
}
return 0;
}
void push_keys_to_lua(lua_State* L, bool keys[SDL_NUM_SCANCODES]) {
lua_newtable(L); // create a new table on the stack
for (int i = 0; i < SDL_NUM_SCANCODES; i++) {
lua_pushinteger(L, i + 1);
lua_pushboolean(L, keys[i]);
lua_settable(L, -3);
}
}
void call_lua_function(lua_State* L, const char* func_name) {
lua_getglobal(L, func_name);
if (lua_isfunction(L, -1)) {
if (lua_pcall(L, 0, 0, 0) != LUA_OK) {
std::cerr << "Lua Error in " << func_name << ": " << lua_tostring(L, -1) << std::endl;
lua_pop(L, 1);
}
} else {
lua_pop(L, 1);
}
}
int main() {
lua_State* L = luaL_newstate();
luaL_openlibs(L);
lua_register(L, "movePlayer", l_move_rect);
lua_register(L, "getKeycodeByName", l_keycode_from_string);
lua_register(L, "setBgImage", l_set_background_image);
luaL_dofile(L, "assets/scripts/mainMenu.lua");
bool keys[SDL_NUM_SCANCODES] = {false};
bool running = true;
push_keys_to_lua(L, keys);
lua_setglobal(L, "keys");
SDL_Init(SDL_INIT_EVERYTHING);
SDL_CreateWindowAndRenderer(WIDTH, HEIGHT, 0, &window, &renderer);
SDL_SetWindowTitle(window, "Showdown of the Sticks");
IMG_Init(IMG_INIT_PNG);
call_lua_function(L, "Setup");
while (running) {
while (SDL_PollEvent(&event)) {
if (event.type == SDL_QUIT) {
running = false;
}
if (event.type == SDL_KEYDOWN) {
keys[event.key.keysym.scancode] = true;
}
if (event.type == SDL_KEYUP) {
keys[event.key.keysym.scancode] = false;
}
}
push_keys_to_lua(L, keys);
lua_setglobal(L, "keys");
call_lua_function(L, "Update");
SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
SDL_RenderClear(renderer);
SDL_RenderCopy(renderer, background_texture, nullptr, nullptr);
SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);
SDL_RenderFillRect(renderer, &rect);
SDL_RenderPresent(renderer);
SDL_Delay(10);
}
lua_close(L);
if (background_texture) {
SDL_DestroyTexture(background_texture);
}
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(window);
SDL_Quit();
return 0;
}
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