Lua is a powerful, fast, lightweight, embeddable scripting language. Lua is widely used as a scripting language by game programmers, perhaps owing to how easy it is to embed, its fast execution, and its short learning curve.

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Corona SDK, do I need to pay for it?

I'm a single dev making simple mobile games. I was looking at corona sdk for my next project. I don't understand what the difference between the paid version and the free version is. It seems that ...
6
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0answers
94 views

Design patterns for live coding/script reloading [closed]

I would like to make C++/Lua combo and write scripts for a game with live script reloading. What design patterns should I be aware of so not to cause me unnecessary pain? For example if I have a ...
3
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2answers
118 views

Scripting: to block or not to block

Context: I'm making a little "program your robot army" sort of game in Java in which the player writes Lua scripts (which are then run by LuaJ) to program their robots to do stuff. So far there are ...
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2answers
87 views

How do i set Lua variables?

You can pretty easily read variables, but what about writing them to the lua file? Ive given it a little go, but it doesnt seem to work... void Lua::setBool(string path, string var, bool val) { ...
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4answers
1k views

Is it efficient to use lua to store game data?

I'm new to lua and I'm wondering, is it efficient to use lua to store game data (such as monster's description, spells). My problem is, when I try to create a monster object every second, I have to ...
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1answer
93 views

Passing an SDL KeyboardState(Uint8*) to Lua

I'm working on my first big project and I've decided to integrate Lua with my C++ framework. Everything's worked out so far, but the only way I've managed to pass the SDL_GetKeyboardState(NULL) array ...
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2answers
61 views

LUA form/scene loading

At the moment, I'm working on a small game project using LUA and the love2d framework. Using this framework, I've made my own assets (i.e. button images, form images, etc), and using these assets I've ...
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2answers
81 views

Binding class method to Lua

If I have class class Game { public: Game() { level = new Level(); } private: Level *level; lua_State *L; } Where the level class has member functions such as ...
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2answers
126 views

Calculating Linear force required to hit a specific vertex on a parabola

The idea is a user presses somewhere on the screen and the program will fire an object in a parabola shape from a defined start position that has it's vertex where the user touched the screen. I have ...
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0answers
35 views

Balancing teams based on player count and skill

I am creating a lua script which should balance teams. Now I have a table of players for each team. And each player has a certain skill (float value), and well second problem is the player count in ...
3
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2answers
6k views

2D and 3D Perlin Noise Terrain Generation

I'm using 2d perlin noise to generate a heightmap and then adding 3d perlin noise to the heightmap to create overhangs and ridges. But it's not turning out like I would like it to. There are too many ...
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0answers
10 views

How can I clear the screen on Corona SDK

I have objects on the screen that create the main menu, and I want the the screen to clear when I get press the play button. I did it the way the other question on this subject said, but when I ...
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1answer
50 views

Resource management with Lua integration

I have a questions about how to better implement resource management when integrating with Lua. I have an entity system that has gameplay logic done in Lua. One of the design points was that I wanted ...
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1answer
58 views

Multiple lua scripts using newthread

I'm trying to hook lua-scripts to my entities, where several entities of the same type want to use a separate instance of the same script. Problem is, when I run two or more scripts and use any C-api ...
0
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1answer
52 views

In ROBLOX, how can I check what is in front of me?

In ROBLOX Studio I need to check what part is in front of the model Freddy. I need to set the variable called thingInFront to the part that is in front of the model Freddy so that I can decide ...
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0answers
20 views

Console Invoke from Lua

Is there any possible way I can invoke the console with lua? The documentation for cryengine lua functions isn't very helpful.
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3answers
2k views

corona sdk scale images

How to scale images to full screen on all devices, i want to use % The method I've seen so far is to define pixels image_variable_name = display.newImage( "testimage.jpg", 100, 300 ) I want to do ...
0
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1answer
133 views

load all files out of folder as resources in lua and love2d [closed]

If i use this code -- some lua file -- some code local IMAGE_FILES = {"file1";"file2";"file3";"file4} -- some code function loadRes() -- some code -- load all images: for i,v in ...
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1answer
505 views

How do I change a LÖVE2D game executable's icon?

I merged my game.love file and the love.exe with the command copy /b love.exe+app.love game.exe. But the resulting executable has the default LÖVE2D icon. Is there a way to change that icon to ...
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1answer
122 views

Calculate future 3D Position of object(Unit)?

I've looked around and almost all examples is see have a velocity vector which I do not have, or at this point am unable to figure out. Im trying to find the 3D position where i can launch a trap in ...
6
votes
3answers
181 views

Which parts of game should belong to engine and which should belong to scripts?

Often, the game is splitted into engine code (i.e. C++) and scripts (i.e. Lua). The question is which parts / modules of game code should typically belong to engine, and wchich should belong ...
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0answers
69 views

What LuaJit threading archietecture should I use?

I am in the process of designing my own Game Engine for use in a real time CRPG - think Baulder's Gate. I know most of my specifications right now, and I am currently in a planning phase. I chose Lua ...
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1answer
459 views

Garry's Mod HatsChat2 chat colors permissions messed up?

So I'm making a garry's mod server and I'm trying to work on my chat box addon that I installed and was working on that only premium and superadmin can use colors in the chat and only want them to be ...
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1answer
77 views

LOVE Physics - Joint Stretching

After asking a similar question yesterday I've come across another problem with using joints in box2D / LOVE and trying to create a weighted chain. Everything is set up as follows, I've tried to ...
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1answer
122 views

LOVE Physics - Breaking Joint Chains (LUA / Box2D)

Wasn't sure whether to post here or on SO so please move if needed. I've been having a look into the box2D physics API provided by LOVE to try and create a swinging flail or weighted rope but I'm ...
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1answer
137 views

Registering a C++ callback with Lua API without additional libraries

Basically, I'm trying to register a callback into a Lua state like this: class MyClass { public: int myLuaFunction(lua_State* L) { //do something } }; I ...
0
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1answer
34 views

Nested ipairs for basic hit detection

So i'm developing my first game using Löve, the game is a basic asteroids clone. Everything is going well so far, until I decided to actually add asteroids. I'm trying to make a basic hit-detection ...
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65 views

How to implement Lua thread for Sleep function

I am running into a problem in my game engine right now. I want to be able to call Sleep(number_of_seconds) from .lua file (1 only) and halt the execution of the lua file, WHILE the game is running ...
5
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1answer
9k views

why is Lua so important ( frequently used ) in game development [duplicate]

I have written some small games for fun myself, but never used Lua myself. I have seen people discussing Lua's use in games everywhere. The question is: What benefit can I get from using Lua in game ...
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4answers
2k views

How can i run my .LÖVE game directly from the lua interpreter?

I've just started with LOVE and LUA , i'm interested in LOVE because i want to play around with something different from my dayjob(i'm a webdeveloper) and since it uses LUA and is interpreted , i ...
0
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1answer
213 views

how to close lua file call luaL_dofile?

i created tool that generate lua script on each level which contain lot function, and they named based on the object+id format. ex : trigger1(), etc; so every level may have same function name, what i ...
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0answers
108 views

Scripting language for high complex educational game [closed]

I'm at a stage of working at my C++ game that I need to implement a script language to allow the players to perform tasks inside the game's logic. I'm a sole programmer and thus it's entirely ...
1
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1answer
143 views

Handling creation of entities on level creation

I'm currently working on a 2d physics based plat former, kinda in the style of super meat boy. In super meat boy, you have multiple levels and I want a similar sort of thing but is there a general way ...
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1answer
140 views

NLua - How to implement Roblox like function security?

Roblox uses Normal Identities, basicly they assign a lua block/object to a certain number. They use 2 for Scripts and LocalScripts, which can only use non-secured functions, while the command bar can ...
5
votes
2answers
519 views

Lua Implementation

I'm struggling to get Lua implemented into my game engine. I've read dozens of blogs and articles revolving around how to wrap C++ classes and I seem to have hit a wall. No matter how I structure the ...
3
votes
1answer
825 views

Is it possible to develop a game with Lua/Löve and have the source code compiled? [closed]

I've been looking at Lua and Löve for developing simple 2D games. But since Lua is interpreted and I know it can be compiled to some point, but how secure is that to decompiling. Or is there a better ...
1
vote
1answer
189 views

update image properties

Is there a way to update the location of an image? I'm currently calling my image dynamically using: itemImage = display.newImage(inventory[t.ID][1]) t. being my target ID. But in order for ...
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vote
1answer
129 views

Custom 3D Noise function incorrectly generating in Lua

I have been working on a custom noise generator (not Perlin on Simplex or whatever), which works fine in two dimensional space, but upon converting it into three dimensional space, it turns into a ...
2
votes
3answers
135 views

Building a C-E engine in a high level language, how can I integrate optional lower-level components that own overlapping state?

To clarify, by overlapping I do not mean overlapping between said components, but rather, let's say I have: My entity contains components, and a parent-children system. Call it a mandatory Hierarchy ...
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2answers
1k views

How to run multiple Lua scripts within the same lua state without conflict

I've been working with Lua for sometime and there is a problem that I could never solve it. First, I'm using a single lua state to have a connection between my scripts so they could transfer data via ...
3
votes
2answers
1k views

How to bind std::map to Lua with LuaBind

Is this possible in lua to achieve? player.scripts["movement"].properties["stat"] = "stand" print (player.scripts["movement"].properties["stat"]) I've done getter method in c++ with this approach: ...
1
vote
1answer
3k views

Run Love2D on iphone and android

I have a game developed in lua using love 2d, and now i want to run it in ios/android. Is there any porting or way available to do that. Thanks.
1
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1answer
268 views

Love2d: Failed to load tileset map

I'm reading the Love2D Development book, which i think i will stop reading because is outdated and very instable, sometimes i got a lot of troubles. Backing to the question, i made a tileset map with ...
0
votes
2answers
150 views

Switching a project written in Lua to a compiled language [closed]

I am experimenting with game development in Lua using the Love2D framework, and while it works fine, I am getting tired of using a dynamic scripting language. I would like to have better performance, ...
18
votes
7answers
4k views

Is there any Lua API that works with C# for PC & XBox 360 Development?

I am reading a book on Game Development in which they show you how to make scripts for your game in Lua. They program Lua and use it from C++, but I was wondering if there is a library or API to use ...
2
votes
1answer
2k views

Generating transformation matrix for 2D camera with pan/zoom/rotate

Question How do you implement a camera with pan/zoom/rotation for a 2d game? Is it acceptable to multiply together a series of transformation matrixes to generate a final transformation matrix that ...
2
votes
1answer
843 views

Help with Collision of spawned object(postion fixed) with objects that there are translating on screen

Hey guys I am creating a game using Corona SDK and so coding it in Lua. So there are 2 separate functions, To translate the hit objects and change their color when they are tapped The link below ...
4
votes
1answer
1k views

How can I manage entities(in entity component system) using Lua scripts?

Suppose I have a code like this in C++ // Game.cpp Entity* hero; Entity* witch; ... // entity initialization if(/player near witch/) { if(hero->get<HealthComponent>()->getHealth() ...
2
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2answers
2k views

How do I draw a border around a display object in Corona Lua?

What would be the easiest way to draw a thin border around a display object in Corona Lua? You could assume it's rectangular image display object. EDIT - re "this question shows no research ...
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vote
1answer
733 views

Love2D : How can I keep up with lots of small sprites' collision data?

So I'm using a SpriteBatch to keep up with lots of small pieces for a falling-piece puzzle game. I have an array of Quads (for different color blocks), and they are randomly added to the ...