teardown_slimeutils

A Teardown modding lib collection about fast randoms, gc functions, etc.

Description

slimerand.lua

A lib about fast and evenly distributed vectors and quaternions.

This library provides a faster generation method (Fastrnd) and a slower but more random equivalent (Truernd).

You can read the code to see the detailed generation types.

How to use

Fast random unit vectors on sphere

local randvec = Fastrnd.Sphere.UnitVec() -- Generate a fast random unit vector on a sphere

Fast random vectors in a ball with a radius of 42

local randvec = Fastrnd.Ball.RangedVec(42) -- Generate fast random vectors in a ball with a radius of 42

True random vectors in a unit ball, which has higher chance around center

local randvec = Truernd.ConcBall.UnitVec() -- Generate true random vectors in a unit ball with a higher chance around the center

True random quarternions with a 0-to-45-degree rotation

local randquat = Truernd.Quat.RangedAxisAngle(math.pi / 4) -- Generate true random quaternions with a 0-to-45-degree rotation

---

slimegcfunc.lua

A lib about garbage collection(GC) detection function.

The upongc function is designed to be triggered upon garbage collection events.

Customize this function based on your mod's specific requirements.

How to use

1. Include it in your mod.

2. Write a function named upongc in your mod's code. For example:

function upongc(t)
    DebugPrint("GC detected! userdata address: " .. tostring(t))
end

3. Launch the game and trigger a GC event by spamming tables or manually triggering the GC.

4. Observe the debug message to confirm GC detection.

5. Customize it to meet your needs.

PS: You may need an explicit GC call if your upongc(t) function generated too many tables, like this: PPS: Teardown 1.6.0 handles gc within upongc(t) correctly, so there is no need to clean them manually.

function upongc(t)
    local list = GetShapes(nil, true) -- this is a HUGE table!
    -- do your stuff...
    -- ...at the end of the function, you need to release memory manually...
    list = nil
    return collectgarbage("collect") -- ...and let lua do the rest of the stuff.
end