foundation for vector lua type + reverted keys in device context

CMakeLists.txt

@@ -103,6 +103,7 @@ file(GLOB_RECURSE SOURCES CONFIGURE_DEPENDS
 file(GLOB_RECURSE API_SOURCES CONFIGURE_DEPENDS
     "${API_DIR}/common.h"
     "${API_DIR}/llib_goodsack.c"
+    "${API_DIR}/llib_vector.c"
     "${API_DIR}/goodsack/llib_time.c"
     "${API_DIR}/goodsack/llib_input.cpp")
 

demo/demo_hot/Resources/scripts/main.lua

@@ -6,4 +6,13 @@ package.path = '../demo/demo_hot/Resources/scripts/?.lua;' .. package.path
 SYSTEM_RUN('systems.weapon_controller')
 SYSTEM_RUN('systems.weapon_sway')
 
-print("package.path: "..package.path.."")
+print("package.path: "..package.path.."")
+
+-- test creating a FOO class
+
+local foo = Vector.new(12)
+local bar = Vector(24)
+
+print(Vector[13])
+print(foo:DoSomething())
+print(bar:DoSomething())

demo/demo_hot/Resources/scripts/systems/weapon_controller.lua

@@ -18,7 +18,7 @@ local pos_standby = {
 }
 
 local fov_aiming = 30
-local fov_standby = 55
+local fov_standby = 45
 local fov_lerp_speed = 10
 
 -------------------------------------
@@ -79,6 +79,10 @@ function system.update(entity)
         handle_input(entity, new_rotation)
     else
         entity.Transform.position = pos_standby
+
+        -- restore FOV
+        local entity_camera = entity.Weapon.entity_camera
+        entity_camera.Camera.fov = math.Lerp(entity_camera.Camera.fov, fov_standby, time.DeltaTime() * fov_lerp_speed);
     end
 
     -- update rotation

src/api/llib/llib_vector.c

@@ -0,0 +1,74 @@
+#include "common.h"
+#define VECTOR_LIB "goodsack.vector"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <util/logger.h>
+
+typedef struct // Vector_lua_t
+{
+    int x;
+} Vector;
+
+static int
+vector_gc(lua_State *L)
+{
+    LOG_TRACE("## __gc\n");
+    Vector *foo = *(Vector **)luaL_checkudata(L, 1, VECTOR_LIB);
+    free(foo);
+    return 0;
+}
+
+static int
+vector_DoSomething(lua_State *L)
+{
+    LOG_TRACE("## DoSomething\n");
+    Vector *foo = *(Vector **)luaL_checkudata(L, 1, VECTOR_LIB);
+    lua_pushinteger(L, foo->x * 20);
+    return 1;
+}
+
+static int
+vector_new(lua_State *L)
+{
+    LOG_TRACE("## new\n");
+    Vector *foo = malloc(sizeof(Vector));
+    int i       = 1 + lua_istable(L, 1);
+    foo->x      = !lua_isnoneornil(L, i) ? luaL_checkinteger(L, i) : 0;
+    *(Vector **)lua_newuserdata(L, sizeof(Vector *)) = foo;
+    luaL_setmetatable(L, VECTOR_LIB);
+    return 1;
+}
+
+static int
+vector_index(lua_State *L)
+{
+    LOG_TRACE("## index\n");
+    int i = luaL_checkinteger(L, 2);
+    lua_pushinteger(L, i);
+    return 1;
+}
+
+int
+luaopen_goodsack_vector(lua_State *L)
+{
+    // instance functions
+    static const luaL_Reg meta[] = {{"__gc", vector_gc}, {NULL, NULL}};
+    static const luaL_Reg meth[] = {{"DoSomething", vector_DoSomething},
+                                    {NULL, NULL}};
+    luaL_newmetatable(L, VECTOR_LIB);
+    luaL_setfuncs(L, meta, 0);
+    luaL_newlib(L, meth);
+    lua_setfield(L, -2, "__index");
+    lua_pop(L, 1);
+
+    // static functions
+    static const luaL_Reg static_meta[] = {
+      {"__index", vector_index}, {"__call", vector_new}, {NULL, NULL}};
+    static const luaL_Reg static_meth[] = {{"new", vector_new}, {NULL, NULL}};
+    luaL_newlib(L, static_meth);
+    luaL_newlib(L, static_meta);
+    lua_setmetatable(L, -2);
+    return 1;
+}

src/api/lua/init.lua

@@ -22,6 +22,8 @@ end
 input       = require('goodsack.input')
 time        = require('goodsack.time')
 
+Vector = require('goodsack.vector')
+
 
 --[[---------------------------------------------------------
 	Extensions

src/core/device/device_context.c

@@ -35,12 +35,12 @@ static void
 _key_callback(GLFWwindow *window, int key, int scancode, int action, int mods)
 {
     // Quit the application
-    if (key == GLFW_KEY_F1 && action == GLFW_PRESS) {
+    if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS) {
         glfwSetWindowShouldClose(window, GLFW_TRUE);
     }
 
     // Toggle cursor state
-    if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS) {
+    if (key == GLFW_KEY_F1 && action == GLFW_PRESS) {
         Input deviceInput = device_getInput();
         device_setCursorState(!deviceInput.cursor_state.is_locked,
                               !deviceInput.cursor_state.is_visible);

src/wrapper/lua/lua_init.cpp

@@ -10,6 +10,7 @@
 #include <entity/lua/reg_system.hpp>
 
 #include <wrapper/lua/lua_debug.h>
+#include <wrapper/lua/lua_reg_print.h>>
 
 #include <entity/v1/ecs.h>
 
@@ -19,6 +20,8 @@ LuaInit(const char *file, ECS *ecs)
     lua_State *L = luaL_newstate();
     luaL_openlibs(L);
 
+    luaopen_luaprintlib(L);
+
     entity::LuaEventStore::Initialize(L, ecs);
 
     // add the global C function (register system) to lua