updated input

CMakeLists.txt

@@ -1,5 +1,5 @@
 
-cmake_minimum_required(VERSION 4.0)
+cmake_minimum_required(VERSION 3.25.1)
 
 if (POLICY CMP0141)
   cmake_policy(SET CMP0141 NEW)

engine/input.cpp

@@ -1,7 +1,20 @@
 
+
+#include <SDL.h>
+
+extern "C" {
+    #include <lua.h>
+    #include <lualib.h>
+    #include <lauxlib.h>
+}
+
+
 #include "input.h"
 
-void process_input(SDL_Keysym &keysym, bool down, lua_State &luaState) {
+// Implement KeyPressed that basically just gets called once on process_input down = true
+// resets when the key is released again
+
+void process_input(SDL_Keysym &keysym, bool down, lua_State *luaState) {
     lua_getglobal(luaState, "engine");
 
     if (lua_istable(luaState, -1)) {
@@ -18,13 +31,13 @@ void process_input(SDL_Keysym &keysym, bool down, lua_State &luaState) {
         }
         else
         {
-            lua_getfield(luaState, -1, "KeyPressed");
+            lua_getfield(luaState, -1, "KeyReleased");
             if (lua_isfunction(luaState, -1)) {
                 lua_pushinteger(luaState, keysym.scancode);
 
                 if (lua_pcall(luaState, 1, 0, 0) != LUA_OK) {
                     const char* error = lua_tostring(luaState, -1);
-                    std::cerr << "Lua error in engine.KeyPressed: " << error << std::endl;
+                    std::cerr << "Lua error in engine.KeyReleased: " << error << std::endl;
                 }
             }
         }

engine/input.h

@@ -1,4 +1,16 @@
 
 #pragma once
 
-void process_input(SDL_Keysym &keysym, bool down, lua_State &luaState);
+
+#include <SDL.h>
+#include <glad/glad.h>
+#include <iostream>
+
+extern "C" {
+    #include <lua.h>
+    #include <lualib.h>
+    #include <lauxlib.h>
+}
+
+
+void process_input(SDL_Keysym &keysym, bool down, lua_State *luaState);

engine/main.cpp

@@ -69,18 +69,22 @@ int main(int argc, char* argv[]) {
     SDL_Event event;
     while (isRunning) {
         while (SDL_PollEvent(&event)) {
+            SDL_KeyboardEvent* key;
+            key = &event.key;
+            SDL_Keysym* keysym;
+            keysym = &key->keysym;
+
             switch (event.type) {
                 case SDL_QUIT:
                     isRunning = false;
                     break;
 
                 case SDL_KEYUP:
-                    SDL_KeyboardEvent* key;
-                    key = &event.key;
-                    SDL_Keysym* keysym;
-                    keysym = &key->keysym;
+                    process_input(*keysym, false, luaState);
+                    break;
 
-                    process_input(*keysym, false, *luaState);
+                case SDL_KEYDOWN:
+                    process_input(*keysym, true, luaState);
                     break;
 
                 default:

test.lua

@@ -1,4 +1,8 @@
 
-function engine.KeyPressed(key)
-    print("Pressed key: " .. key)
+function engine.KeyReleased(key)
+    print("Released key: " .. key)
+end
+
+function engine.KeyDown(key)
+    print("Key down: " .. key)
 end