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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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 ...
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0answers
53 views

Making a line/rope follow the character

i have a main character that walks in all directions (up, down, left, right). What i want is this: The player goes to the point A.. When he reaches the point A and touch the button, a rope is gonna ...
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28 views

How do you use Lua with several game objects / components?

I haven't found a lot of information / tutorials on this subject, so I figured I'd ask here. I would like to use Lua-Alchemy (the Flash port of Lua) to be able to load scripts and run console-like ...
3
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1answer
757 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 ...
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2answers
134 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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1answer
52 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
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3answers
100 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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0answers
48 views

Touch-detection in cocos2d-x (Lua): Catering for bounding boxes and scale factor

I am trying to write an app in Cocos2d-x with Lua. I have a sprite that I have added directly to a scene, and now I want to detect touches on the sprite. Right now, my touch begin function looks as ...
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2answers
298 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 ...
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0answers
13 views

Lua mud using c snippet for protocols? [duplicate]

I've been working on teaching myself to program in Lua for the past couple of months and I've been working on my own MUD using lama as my starting point. I've learned a lot and added quite a bit of ...
5
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1answer
324 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 ...
3
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2answers
732 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: ...
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1answer
310 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.
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vote
1answer
90 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
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2answers
104 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, ...
16
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7answers
3k 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
403 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
792 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 ...
3
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1answer
532 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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1answer
480 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 ...
3
votes
1answer
162 views

Make an object follow the mouse pointer with LÖVE2D

I've been trying to make a picture follow the mouse pointer with LÖVE2D. I want that the object follow the mouse, and not just be the mouse coordinates, I did that. So I toked the distance between ...
0
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1answer
58 views

Phone crash when try to use vibration on Android

Im developing an app that when you click a button the phone has to vibrate, the issue is that the phone just chashes. Saing that I need permitions to vibrate. I've already set this permition in the ...
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2answers
182 views

Smooth moving on tile-based map, how to fix simple collisions?

I've already had some experiences about the work of 2 dimensional square-based playfields and moving a player on them. Though, when a square has multiple pixel sizes, and player moves e.g. 1 pixel per ...
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1answer
91 views

file:write restarts Corona app

I am attempting to implement an auto-save feature into a mobile game. I have the following code writing to the save file: function saveFunc(input) local saveData=input local file = io.open( ...
40
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7answers
7k views

How does Lua work as a scripting language in games?

I'm a little hazy on what exactly Lua is and how a game that is programmed in C++ would use it. I'm asking primarily about how it is compiled and run. For instance when you use a program written in ...
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0answers
74 views

Gideros Repeating and Clipping Background

I want to have a background with a repeating x-axis, that can be moved horizontally. What I have so far: local background = Texture.new("parallax01.png", true, {wrap = Texture.REPEAT}) local shape = ...
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2answers
121 views

Is it possible to develop web-based games using Corona SDK?

Some clients asked me to develop 2D web-based games and later on they might want to release those games on mobile platforms. I know Corona and I don't want to rewrite my code twice. Is it possible to ...
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1answer
94 views

How should I go about protecting my script files?

I am working on a small multiplayer game with a whole bunch of scripting components. I know I can't store my files in plaintext otherwise anyone would be able to change the functionality of core ...
0
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1answer
86 views

How do I lock drawn lines to be orthogonal to an existing one?

I'm making a 2D game in Corona for Android/iPhone that is similar to Volfied. In my game, the user has to touch the screen to draw a line for the character to move along. How can I force the lines to ...
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2answers
141 views

Using Lua for configuration and localization data

Since my game is already going to be scripted with Lua, I've decided to make all my configuration and localization data defined using Lua tables. For example, this could be a basic locale file: -- ...
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1answer
113 views

How should I organize Lua scripts so that some entities do not have access to functions they shouldn't?

For my game in C++ I'm using different objects (like player, enemy, et cetera) which will have to be controlled by a Lua script. My problem is that if I were to write a function in my player script, ...
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0answers
43 views

Checking if two lines are crossing [duplicate]

How can I check if two lines (created with function love.graphics.line) are crossing themselves? I may use this ability to create procedural maps via graphs.
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2answers
283 views

Perlin Noise Help

Okay so I have been trying to make perlin noise, fractal noise to be specific, with mixed success. What I do is I fill 5 arrays with white noise, basically just floating point values. Each array is ...
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1answer
3k 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 ...
3
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3answers
405 views

Automatically triggering standard spaceship controls to stop its motion

I have been working on a 2D top-down space strategy/shooting game. Right now it is only in the prototyping stage (I have gotten basic movement) but now I am trying to write a function that will stop ...
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0answers
123 views

Determine required camera pitch/yaw change based on mouse movement and roll?

I'm sure this is going to be a pretty simple answer but I can't quite figure it out on my own. Each frame, I'm getting the mouse's distance from the center of the screen (left/up is positive) and ...
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2answers
270 views

Perlin Noise Variations

Currently I'm making a voxel survival game. About a month ago I embarked on procedurally generating terrain using Perlin noise. I understand how to use and apply it for the most part. However I do not ...
2
votes
1answer
121 views

How to set speed based on screen size

I am making a breakout clone for mobile and was wanting to make the ball speed to be related to the screen size. Larger screen would mean faster speed. Right now I have it set like so: ...
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vote
3answers
1k 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 ...
3
votes
3answers
3k views

How do I move an existing display object behind another in Corona Lua?

If I have two existing display objects in Corona, lets say do1 and do2. Assume do1 is drawn first then do2, so do2 will be on top. Is there a way to say "put do2 behind do1" in corona Lua? If yes can ...
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1answer
392 views

How to store generic data in game database?

To clarify things a bit: I want to create a kind of database for my game, that simply is a class that stores all game-state information like object positions, player scores, etc. The main problem I ...
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vote
2answers
165 views

LUA - Keeping track of game state for a digital card trading game

I am building a card game. Let's say it's similar to Magic the Gathering, Hearthstone, etc. The problem I am trying to figure out is how to architect "auras" and how much damage each card takes. ...
2
votes
2answers
94 views

Breakout intersection logic issues

I'm learning Lua and thought I should try my hand at making a Breakout clone. It is pretty much playable, but there seems to be odd intersection logic at some points, specifically the ball-brick ...
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vote
1answer
121 views

How to allow other games to communicate with my Lua scripts?

I am planning some small games that will all rely on a single system of Lua scripts to manage some unified data about: Some achievements that are common to each game. The player's progress in ...
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0answers
63 views

Overlay scene not showing [on hold]

I have 2 scenes: One main scene with a button, and another scene with only 1 text. button action in Main Scene: local options = { effect = "fade", time = 400, params = { ...
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0answers
35 views

Verb+Noun Parsers and Old School Visual Novels [duplicate]

Hi I'm working on a simple old school visual novel engine in Lua. Basically I have most of the code set up besides one important feature. The Text Parser. Lets get into how words are generally ...
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vote
2answers
5k views

Efficient tile maps in Corona SDK

I need to create a tile map based level system for Corona SDK that loads files created with Tiled [1]. It also needs to support user touch scrolling and zooming. I've searched the Corona forums for ...
3
votes
1answer
510 views

How to transfer a luabind::object between two lua states

I store an object by a function call from Lua to C++ in first script in my application and after that I'll try to pass that object to other scripts and vice versa. A part of script class in C++: ...
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2answers
200 views

Store voxel type data in XML or Java classes?

So, I want it to be very easy to create all the entities of my game and for other people to come in and do the same. I was thinking I could just let the users/myself create an XML sheet the stores all ...