Silver The Hedgehog 2.12

/*
local properties = {
    // telekinesis properties:
    nograb          boolean,    // sets whether the object can be grabbed
    noaim          boolean,    // sets whether the object can be aimed at with throws
    noroll         boolean,    // if true, rollangle will not be applied when this object is grabbed
    killonwall     boolean,    // if true, the object will be killed when thrown at a wall regardless of hitpoints
    killonfloor    boolean,     // if true, the object will be killed when thrown on the floor regardless of hitpoints
    nodamage     boolean,     // if true, the object cannot be damaged by throws

    shield =    mobjtype,    // MT_ constant expected to be the shield mobjtype held in mobj.tracer.
                            // mobj cannot be grabbed for as long as their shield is valid. Used for Crushstaceans and Egg Guards.

    // silver specific properties:
    bossdamage = boolean,    // if true, silver cannot use Psycho Boost or his spin jump to damage this enemy
    msondamage = boolean,    // used specifically for Metal Sonic. Lets silver damage the boss through normal jumps only if MF_SHOOTABLE is not applied.

    // telekinesis related functions:
    grabf     function(mobj_t mo, mobj_t grabber)
                -- runs continuously while grabber is using telekinesis on mo
            end,

    throwf     function(mobj_t mo, mobj_t thrower)
                -- runs contunuously while mo is being thrown by thrower
            end,

    resetf     function(mobj_t mo)
                -- runs once when mo is being reset from Telekinesis status (after a throw or being let go off of).
            end,

    shieldf function(mobj_t shield)
                -- runs once the frame where the shield is being grabbed.
            end,
}

silv_addTKextra(MT_MOBJTYPE, properties)
*/

-- exemple:
local prop = {
    nograb = true,
    bossdamage = true,
}
silv_addTKextra(MT_BLUECRAWLA, prop)
-- The above will result in every crawla being impossible to grab and damage physically for Silver.

local added        -- flag that checks if we've already added our properites

local function addsilverstuff()

    if not added        -- check if we haven't already added the data.
    and silv_addTKextra    -- this checks if silv_addTKextra exists, AKA if Silver has been loaded

        -- custom properties / idle sprites go here.
        -- do NOT use P_Random functions here, as the properties here need to be synched.


        added = true    -- set this flag to true
    end
end

silveraddstuff()    -- attempt to load properties on addon load. If Silver was already added beforehand, this saves us the troub
if not added    -- we failed to add the data on script load
    addHook("ThinkFrame", do
        addsilverstuff()
    end)
end
-- So then we'll try to load it every frame until it works. This is the least desirable outcome but ultimately has no impact