Questions tagged [lua]

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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Love2D : Problem rotating image in a SpriteBatch

I'm working on a falling blocks type of game with triangular pieces. I'm using a SpriteBatch to accumulate and remember the pieces and their locations. The problem ...
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C++ formatted serialization [closed]

I've decided it's time to implement serialization in my simple engine but this has caused me many headaches for the past couple of days/weeks. My engine uses an entity/component based approach similar ...
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631 views

Lua GameDev iOS - Code on win and mac

I am searching for a simple framework like http://getmoai.com where you can simply code a game in lua for iOS. I want to build it along with a friend. I am using a Mac, he prefers windows so the fw ...
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using lua in kobold2d to control parameters

Is there a tutorial on using LUA in Kobold2d? I want to know if its possible to use it to control the game behavior (like max speed decrease of timer, and bonus points) by uploading a new script to ...
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Drawing rectangle with line's causes join artifact with the graphics api

how can I join lines to draw rectangles, I get this artifact like this, here's my code: ...
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56 views

Using Lua to define NPC behaviour

I'm working on a RPG in C using Lua for event scripting like NPC behavior. I ran into a design problem. I have created Lua threads in the C API for each game object which can be a NPC. So this: ...
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How can I allow my players to create, save and use moves?

I want to create a system to allow the players to create, save then use moves in Roblox Studio. My first thought was to do this by letting them create animation files in Roblox Studio, but I'm not ...
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Pathfinder is making my NPC follow my oldest position only

I am trying to make a maze/horror game. I used an online template in the Roblox library as my enemy. I used pathfinder as you will see in the code below. It's finding me like it's supposed to, except ...
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65 views

Play and Pause State

Problem i want to implement a pause state and with a simple conditional inside the update of PlayState is very very simple. However i think that the pause has to be another state in the StateMachine ...
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Why can't I access LocalPlayer at runtime in a starterGui script, but I can in the console at runtime?

In StartGui -> ScreenGui -> TextLabel -> Banner (a script) I've got ...
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546 views

Hiding World of Warcraft UI Elements with Lua

I'm tyring to make a very simple WoW addon that hides the gryphons on either side of the main menu bar and hides the micro buttons in the lower right. The addon has one Lua script, main.lua: ...
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Integrating Moonsharp with Unity for Nintendo Switch project

Has anyone tried to run Unity project with integrated Moonsharp on Nintendo Switch? Can it be done? Are there any significant performance issues due to running Lua scripts? EDIT: Sorry, I wasn't ...
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Facing issues trying to Parse JSON in Lua

Problem statement: Need help trying to load a JSON file into a table array in Lua for Corona SDK development. My Objective: Call specific data from JSON file to my application by using key value ...
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129 views

How is tile offsetting accomplished in 2d side scrollers?

The idea is to work with tiles that together make up a larger image, or world so to speak. but im confused as to what the methods used are to offset the tiles, and whether is a good idea to draw ...
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How to make the character dash forward in Roblox?

In my game, I want to make a skill in a tool to dash forward for a specific range and if the character came in contact with a humanoid during the dash, it stops right on contact and stops the other ...
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263 views

Walking around a sphere in Lumberyard

I am trying to create a simple game using Amazon Lumberyard and my goal is to have levels/stages where the player will be able to walk around a mini planet. I have seen a lot of tutorials about this ...
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How can I load a script once in LuaJit/Lua and use it across multiple VMs in different threads?

So, I came across an interesting problem. I'm implementing some threaded game logic, and one of the things I decided to do was to use Multiple Lua VMs, with each worker thread containing its own VM. ...
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586 views

Love2D STI library not drawing map at all (black screen)

I'm trying to use a pretty standard map with the Simple Tiled Implementation module for Love2D, but no matter what I try, I can't get it to display anything but a black screen. Here's my current code (...
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Shortest rotation value [duplicate]

I have a top down game. The player moves the avatar with WASD where W rotates the avator to 180, S rotates to 0, A rotates to 90 and D rotates to 270. I also do diagonal movement so if they hold SA it ...
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181 views

How can I fix this code to spawn multiple types of enemies on the same point with the Corona SdDK?

I have this code to spawn a simple enemy outside the window: ...
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135 views

How do I select a portion of the window using Love2d

I want to be able to divide the window of the game in, lets say, 3 places, and when the mouse (or touch) click one of those places, execute some code. Do I have to make each portion a button-like ...
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212 views

What's the best way to store tiles' infos in a 2D table?

I need to know what's the less time / memory consuming way to store the infos about each tile in a 2D table. The first thing that came to my mind was creating a table holding the infos, and then ...
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Why does my world generation code perform poorly on large inputs?

I'm writing some code to procedurally generate some islands in real time. The idea is to choose some points for each chunk, and for each tile calculate the distance from those points, then combine it ...
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611 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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484 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: ...
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53 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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Overload C++ functions in lua [closed]

I have had a look around but I believe this to be impossible due to compile time of c++. However is it possible to have a class registered in lua and c++ that has a overload update function which I ...

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