add 'camera' library

res/scripts/stdlib.lua

@@ -252,9 +252,11 @@ function session.reset_entry(name)
     session.entries[name] = nil
 end
 
-function timeit(func, ...)
+function timeit(iters, func, ...)
     local tm = time.uptime()
-    func(...)
+    for i=1,iters do
+        func(...)
+    end
     print("[time mcs]", (time.uptime()-tm) * 1000000)
 end
 

src/logic/scripting/lua/api_lua.hpp

@@ -4,10 +4,19 @@
 #include "lua_util.hpp"
 
 #include <exception>
- 
+
+/// Definitions can be found in local .cpp files 
+/// having same names as declarations
+
+/// l_ prefix means that function is lua_CFunction:
+///    int l_function_name(lua_State* L);
+/// use following syntax:
+///    int l_function_name(lua::State* L);
+
 // Libraries
 extern const luaL_Reg audiolib [];
 extern const luaL_Reg blocklib [];
+extern const luaL_Reg cameralib [];
 extern const luaL_Reg consolelib [];
 extern const luaL_Reg corelib [];
 extern const luaL_Reg entitylib [];
@@ -23,9 +32,9 @@ extern const luaL_Reg packlib [];
 extern const luaL_Reg playerlib [];
 extern const luaL_Reg timelib [];
 extern const luaL_Reg tomllib [];
-extern const luaL_Reg vec2lib [];
-extern const luaL_Reg vec3lib [];
-extern const luaL_Reg vec4lib [];
+extern const luaL_Reg vec2lib []; // vecn.cpp
+extern const luaL_Reg vec3lib []; // vecn.cpp
+extern const luaL_Reg vec4lib []; // vecn.cpp
 extern const luaL_Reg worldlib [];
 
 // Components

src/logic/scripting/lua/lib__transform.cpp

@@ -1,13 +1,13 @@
 #include "libentity.hpp"
 
-static int l_transform_get_pos(lua::State* L) {
+static int l_get_pos(lua::State* L) {
     if (auto entity = get_entity(L, 1)) {
         return lua::pushvec3_arr(L, entity->getTransform().pos);
     }
     return 0;
 }
 
-static int l_transform_set_pos(lua::State* L) {
+static int l_set_pos(lua::State* L) {
     if (auto entity = get_entity(L, 1)) {
         auto vec = lua::tovec3(L, 2);
         entity->getTransform().setPos(vec);
@@ -16,28 +16,28 @@ static int l_transform_set_pos(lua::State* L) {
     return 0;
 }
 
-static int l_transform_get_size(lua::State* L) {
+static int l_get_size(lua::State* L) {
     if (auto entity = get_entity(L, 1)) {
         return lua::pushvec3_arr(L, entity->getTransform().size);
     }
     return 0;
 }
 
-static int l_transform_set_size(lua::State* L) {
+static int l_set_size(lua::State* L) {
     if (auto entity = get_entity(L, 1)) {
         entity->getTransform().setSize(lua::tovec3(L, 2));
     }
     return 0;
 }
 
-static int l_transform_get_rot(lua::State* L) {
+static int l_get_rot(lua::State* L) {
     if (auto entity = get_entity(L, 1)) {
         return lua::pushmat4(L, entity->getTransform().rot);
     }
     return 0;
 }
 
-static int l_transform_set_rot(lua::State* L) {
+static int l_set_rot(lua::State* L) {
     if (auto entity = get_entity(L, 1)) {
         entity->getTransform().setRot(lua::tomat4(L, 2));
     }
@@ -45,11 +45,11 @@ static int l_transform_set_rot(lua::State* L) {
 }
 
 const luaL_Reg transformlib [] = {
-    {"get_pos", lua::wrap<l_transform_get_pos>},
-    {"set_pos", lua::wrap<l_transform_set_pos>},
-    {"get_size", lua::wrap<l_transform_get_size>},
-    {"set_size", lua::wrap<l_transform_set_size>},
-    {"get_rot", lua::wrap<l_transform_get_rot>},
-    {"set_rot", lua::wrap<l_transform_set_rot>},
+    {"get_pos", lua::wrap<l_get_pos>},
+    {"set_pos", lua::wrap<l_set_pos>},
+    {"get_size", lua::wrap<l_get_size>},
+    {"set_size", lua::wrap<l_set_size>},
+    {"get_rot", lua::wrap<l_get_rot>},
+    {"set_rot", lua::wrap<l_set_rot>},
     {NULL, NULL}
 };

src/logic/scripting/lua/libcamera.cpp

@@ -0,0 +1,18 @@
+#include "api_lua.hpp"
+
+#include "../../../content/Content.hpp"
+#include "../../../world/Level.hpp"
+
+using namespace scripting;
+
+int l_index(lua::State* L) {
+    auto name = lua::require_string(L, 1);
+    auto& indices = content->getIndices(ResourceType::CAMERA);
+    std::cout << "index: " << name << std::endl;
+    return lua::pushinteger(L, indices.indexOf(name));
+}
+
+const luaL_Reg cameralib [] = {
+    {"index", lua::wrap<l_index>},
+    {NULL, NULL}
+};

src/logic/scripting/lua/libentity.cpp

@@ -8,11 +8,11 @@
 
 using namespace scripting;
 
-static int l_entity_exists(lua::State* L) {
+static int l_exists(lua::State* L) {
     return lua::pushboolean(L, get_entity(L, 1).has_value());
 }
 
-static int l_entity_spawn(lua::State* L) {
+static int l_spawn(lua::State* L) {
     auto level = controller->getLevel();
     auto defname = lua::tostring(L, 1);
     auto& def = content->entities.require(defname);
@@ -25,14 +25,14 @@ static int l_entity_spawn(lua::State* L) {
     return 1;
 }
 
-static int l_entity_despawn(lua::State* L) {
+static int l_despawn(lua::State* L) {
     if (auto entity = get_entity(L, 1)) {
         entity->destroy();
     }
     return 0;
 }
 
-static int l_entity_set_rig(lua::State* L) {
+static int l_set_rig(lua::State* L) {
     if (auto entity = get_entity(L, 1)) {
         std::string skeletonName = lua::require_string(L, 2);
         auto rigConfig = content->getRig(skeletonName);
@@ -45,9 +45,9 @@ static int l_entity_set_rig(lua::State* L) {
 }
 
 const luaL_Reg entitylib [] = {
-    {"exists", lua::wrap<l_entity_exists>},
-    {"spawn", lua::wrap<l_entity_spawn>},
-    {"despawn", lua::wrap<l_entity_despawn>},
-    {"set_rig", lua::wrap<l_entity_set_rig>},
+    {"exists", lua::wrap<l_exists>},
+    {"spawn", lua::wrap<l_spawn>},
+    {"despawn", lua::wrap<l_despawn>},
+    {"set_rig", lua::wrap<l_set_rig>},
     {NULL, NULL}
 };

src/logic/scripting/lua/lua_engine.cpp

@@ -48,6 +48,7 @@ static void create_libs(lua::State* L) {
     openlib(L, "world", worldlib);
 
     openlib(L, "entities", entitylib);
+    openlib(L, "cameras", cameralib);
 
     // components
     openlib(L, "__skeleton", skeletonlib);