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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2answers
48 views
Pressed key doesn't run out of special powerups
So I'm making a game in Lua/Love2D and have a problem with my game logic. Mainly I have a spaceship that can use boost and stuff. That part is fine, I click space and it boosts up to speed quickly.
...
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1answer
38 views
Love2D and 'Tiled' - Detect if player is over certain tile/Collision
I created a 50x50 tile map with 32x32 tiles in Tiled and exported it as a Lua file so I can use it in Love2D. I have a player you can move around the world but I'm attempting to convert the player's x ...
0
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0answers
15 views
How can I scale a model with a Vector argument, and then render it. (In garry's mod lua)
I have made a simple bullet tracer model in blender and I have compiled and implemented it into one of my addons I'm making.
The issue is that I can't seem to find anything on the Garry's Mod Wiki. I'...
1
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0answers
49 views
Reimplemented steering seek behavior from PyGame to LÖVE is much slower than original
I'm learning about steering behaviors and watched this nice explanation tutorial - https://www.youtube.com/watch?v=g1jo_qsO5c4&feature=youtu.be with the source code available at https://github.com/...
1
vote
1answer
81 views
Difficulty understanding integration of Lua with C++ Game Engine
I'm starting work with the Allegro C++ library to get some lower level game development experience after working mostly with Unity. I've read about how Lua is a popular scripting language choice for ...
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1answer
53 views
Implementation details of Command Pattern in conjunction with Entity Component System
I have implemented an ECS where more or less an Entity is just an ID, a Component is just a wrapper for data, and a System holds the logic on operating over different components.
There is an Engine ...
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0answers
63 views
How to slow down snake without making it collide with itself?
I just finished writing my first game ever, snake, in lua using Love2D. The entire source is here: https://github.com/AriaFallah/snake.
Here is the problem: My snake is made of 10px by 10px segments, ...
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0answers
25 views
Formula for trajectory of object reflecting on walls
I've been trying to make an AI, but because i'm not sure where to start with predictions or scans for if an object will come into contact with the bot, I tried looking for formulas, etc, but the ...
0
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1answer
102 views
Can MoonSharp call functions from static classes?
My question is very simple. I'm using MoonSharp to add Lua scripting to my game. One use case involves calling a static artificial intelligence function from a static class I've implemented in C#. I ...
4
votes
1answer
110 views
Garry's Mod gamemode scripting (lua) - How do I tell if an object is inside a hollow cylinder?
I'm fiddling about with gMod trying to make a gamemode where you have to throw a piece of cake into a cylinder that spawns on the map.
This is the code I'm using to spawn the cylinder:
local ent = ...
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0answers
80 views
Unitale, using a variable from one script to an other, in Lua
I am trying to share a variable created in the script poseur.lua, which is placed in the folder "Monsters", with the script encounter.lua, which is placed in the folder "Encounters". I just can't get ...
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1answer
121 views
C++ - Lua Preventing malicious lua code
Im working on a "game" that uses lua for scripting and i plan on making it very mod-able. However, malicious code can be written without much difficulty in lua... So how can i go about stopping that? ...
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1answer
59 views
Got unexpected results from perlin noise. Wondering what it is doing?
I was just messing around with perlin noise and got this. Wondering if anyone knows what it is or has seen it before.
Here is the code(LUA with love2d engine):
function love.load()
love....
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votes
1answer
65 views
Unwanted line between chunks in heightmap infinite terrain
I can't figure out what is causing the line between my two chunks. They are completely aligned. It must be something to do with the algorithm. I am using lua with the love2d game engine. Here is a ...
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2answers
123 views
My perlin noise height map doesn't have smooth transitions and goes directly from black to white
I am using lua with the love2d engine to make infinite 2d tiled terrain with perlin noise. This is just the first step and I want to fix the bugs early.
The problem is that there is no gradient ...
1
vote
2answers
265 views
Performance Issues Using Lua in C++
I'm making an engine in C++ with Lua for its scripting language (using LuaBridge as the binding).
I have a lot of entities and those entities have components. One of the components on those entities ...
1
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1answer
51 views
Can i put the main Love2D functions inside a table?
Instead of having a file with load, update,and draw can i say have a table called player, then put love.update and love.draw in that table to handle the drawing and updating of that particular player?
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1answer
51 views
Z buffer for large vs small objects
Are there common, tried and tested techniques for making sure that when displaying very large and very small objects, in a 3D environment, those objects don't display in front or behind each other?
...
1
vote
1answer
39 views
How to automate baking pizza in Corona SDK?
I'm writing a game about making pizza in Corona SDK. When you buy chefs, the new chef is supposed to make some pizzas on its own like automation.
I tried everything I knew about, I couldn't think of ...
1
vote
0answers
28 views
How to include moai in lua code for running it using luajit?
I'm running moai from ubuntu for some simulation purposes.
I have a lua script that is executed using luaJIT.
Now I want to run a simulation written based on moai from within this script.
As of now,...
1
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0answers
193 views
How to fix my camera angle in ROBLOX?
I am trying to make my own camera in ROBLOX. Here's my problem, I am using an inverse function to make the camera look nice and smooth but it only works on the x axis in the positive side.
Here's an ...
0
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2answers
45 views
What does this shader error in Löve2D mean?
What could I've done wrong to get the following error message when trying to create a GLSL shader in Löve2D?
I'm sincerely clueless of what the mistake could be, though I suspect the error being a ...
0
votes
1answer
45 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:
local function spawnGrupo1()
local color01 = display.newImage("assets/img/enemigos/blue.png")
color01.x = 40
color01.y = -50
...
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votes
1answer
50 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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0answers
102 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 ...
2
votes
1answer
62 views
Dynamic force behind logical jumping on 3 axis'
I've been working on physical jumping in a 3D environment, I've got it working with a static force. The problem with this is that the force on each axis should be different due to the rotation from ...
2
votes
1answer
86 views
Logical math behind jumping in a 3D world
I'm unsure if I should ask the mathematic part of StackOverflow or the gamedev part. I'm trying to figure out how the gravity changes the position of an element in a 3D world. I've been trying to ...
0
votes
0answers
64 views
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 ...
2
votes
2answers
108 views
How do I handle objects with a width and height in grid-based pathfinding?
I'm using the Jumper library for Love2D to do grid-based pathfinding, which worked fine until I wanted to make larger enemies (with larger collision boxes). How do i do that?
My initial idea was to ...
3
votes
0answers
75 views
Easing towards stepped value
I'm currently developing this rhythm game in lua (on top of a c++ engine) and I'm having trouble keeping a steady playhead position for the song currently playing.
The playhead position that the ...
0
votes
1answer
27 views
How to calculate the magnitude of the drag in Corona-sdk?
I'm making a game on Corona that launches a ball.
The force is based on the magnitude of the drag: the larger is the drag -> the higher is the force.
I'm having some trouble to do this, because I ...
0
votes
1answer
368 views
Is it safe to set Lua Table data from multiple C++ threads?
As the title states. I'm curious if it's safe to set data in different Lua tables that exist in the same lua state. From multiple C++ threads.
I'm asking this because my current system actually has a ...
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0answers
53 views
Cocos2dx : Lua with C++: lua_pcall closing my app
I'll try to explain what is happening with my current project:
I want to make some custom scripts myself without using the lua script engine from cocos2dx, so I linked lua51.lib on Linker->Input, and ...
1
vote
0answers
139 views
GMod Lua Scripting - Playing sounds only for specified player entities
I'm making a game mode for Garry's Mod, and I'm trying to write a system in which I play sounds only for certain players. The problem I'm running across is that doing so from server-side would take a ...
1
vote
2answers
140 views
HardonCollider Error: attempt to call method 'addRectangle' (a nil value)
I want to add collision detection mechanism to my game, which is written in love2d. As i do not want to implement my own algorithm, i have found a HardonCollider library to do the heavy lifting for me....
6
votes
0answers
136 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 ...
1
vote
2answers
207 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) { //"...
1
vote
2answers
166 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 "...
8
votes
2answers
222 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 ...
0
votes
0answers
46 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 ...
2
votes
2answers
113 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 ...
1
vote
0answers
71 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 ...
1
vote
1answer
76 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 ...
1
vote
1answer
250 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
votes
1answer
74 views
Open CryEngine console from lua script
Is there a function in the CryEngine Lua API to open the ~ Console?
I cannot find it in the Lua (ScriptBind) API reference.
0
votes
1answer
69 views
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 ...
0
votes
1answer
625 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 ipairs(...
1
vote
0answers
331 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 ...
6
votes
3answers
220 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 ...
1
vote
1answer
121 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 ...
