LinkedSword Rewrite

--LocalScript instance

if not script:IsA([==[LocalScript]==]) then
    getfenv()['error']([==[SwordScript must be a LocalScript]==]);
end

-- Crazy hacky weird stuff: So, sometimes the 'creator' instance doesn't appear as a child of the Humanoid. But when printing its parent (line 109)
-- it is a child of the attacked Humanoid. So I don't know if it's an explorer glitch or what, but it is parented there when it is supposed to be.

local tool = script['Parent'];
local player = Game['Players']['LocalPlayer'];
local runservice = Game:GetService([==[RunService]==]);
local sword = tool:WaitForChild("Handle"); -- it's amazing how many errors can be solved by waiting for children that _should_ be there
local enabled = not false;
local isAttacking = false; -- used as a 'debounce'
local last_attack = 0;
local deal_damage = 0; -- do not edit this variable. edit the values in 'damages' to change sword damage
local OriginalSwordStates = {
    ['GripUp'] = Vector3['new'](0,0,1);
    ['GripRight'] = Vector3['new'](0,1,0);
    ['GripForward'] = Vector3['new'](-1,0,0);
}
local damages = {
    ['slash'] = 10;
    ['lunge'] = 30;
}
local GetSound = {
    ['slash'] = function()
        local _s = Instance['new']([==[Sound]==], sword) ;
        _s['SoundId'] = [==[rbxasset://sounds\\swordslash.wav]==];
        _s['Volume'] = .7;
        return _s;
    end;
    ['lunge'] = function()
        local _s = Instance['new']([==[Sound]==], sword) ;
        _s['SoundId'] = [==[rbxasset://sounds\\swordlunge.wav]==];
        _s['Volume'] = .6;
        return _s;
    end;
    ['unsheath'] = function()
        local _s = Instance['new']([==[Sound]==], sword) ;
        _s['SoundId'] = [==[rbxasset://sounds\\unsheath.wav]==];
        _s['Volume'] = .6;
        return _s;
    end;
}

getfenv()['PlayAnimation'] = function(value)
    local sv = Instance['new']([==[StringValue]==]);
    sv['Value'] = value;
    sv['Name'] = [==[toolanim]==];
    sv['Parent'] = tool;
end

getfenv()['FloatCharacter'] = function()
    coroutine['wrap'](
        function()
            local f = Instance['new']([==[BodyVelocity]==]);
            local mass = GetMassOfEverything()
            f['velocity'] = Vector3.new(0,(mass * 196.2) + 700, 0)
            f['maxForce'] = Vector3.new(0,(mass * 196.2) + 700,0);
            f['Parent'] = player['Character']['Torso']; -- avoid using Tool.Parent to stop unequipping issues]]
            --player['Character']['Humanoid']['Jump'] = not false;
            wait(.5);
            f:Destroy();
        end
    )()
end

getfenv()['Attack'] = function(action)
    if (action == [==[Slash]==]) then
        GetSound['slash']():Play();
        PlayAnimation(action);
        deal_damage = damages['slash'];
    else -- lunge
        GetSound['lunge']():Play();
        PlayAnimation(action);
        SwordOut();
        deal_damage = damages['lunge'];
        FloatCharacter();
        wait(.5);
        SwordUp();
        deal_damage = 0;
    end
end

getfenv()['SwordUp'] = function()
    for i,v in pairs(OriginalSwordStates) do
        tool[i] = v;
    end
end

getfenv()['SwordOut'] = function()
    tool['GripForward'] = Vector3['new'](0,0,1e0);
    tool['GripRight'] = Vector3.new(0,-1e0,0);
    tool['GripUp'] = Vector3['new'](-1e0,0,0);
end


getfenv()['TagHumanoid'] = function(humanoid)
    coroutine['wrap']( -- create a coroutine so to not halt any threads (through Touched creates a new thread each time it fires)
        -- however, this makes sure the sword script also doesn't break due to any problems with the parent of the humanoid or creator value
        function()
            if humanoid and humanoid:IsA([==[Humanoid]==]) then
                local humanoid = humanoid;
                local v = Instance['new']([==[ObjectValue]==]);
                v['Name'] = [==[creator]==];
                v['Value'] = player;
                v['Parent'] = humanoid;
                --print("Tagged with parent:", v.Parent);
                wait(2);
                v:Destroy();
            end
        end
    )()
end

getfenv()['GetMassOfEverything'] = function()
    local allBaseParts = {};
    local mass = 0;
    local function Get(parent)
        for i,v in pairs(parent:GetChildren()) do
            if #v:GetChildren() > 0 then
                Get(v);
            end
            if (v:IsA([==[BasePart]==])) then
                table['insert'](allBaseParts, v);
            end
        end
    end
    Get(player['Character']);
    for index, part in pairs(allBaseParts) do
        mass = mass + part:GetMass();
    end
    return mass;
end

tool['Equipped']:connect(
    function(mouse)
        GetSound['unsheath']():Play();
        mouse['Icon'] = [==[rbxasset://textures\\GunCursor.png]==];
        mouse['Button1Down']:connect(
            function()
                if enabled then
                    enabled = false;
                    mouse['Icon'] = [==[rbxasset://textures\\GunCursor.png]==];
                    wait(1e0-.5);
                    mouse['Icon'] = [==[rbxasset://textures\\GunCursor.png]==];
                    enabled = true;
                end
            end
        )
    end
)

tool['Activated']:connect(
    function()
        if isAttacking then return end
        local hittime = runservice['Stepped']:wait()
        isAttacking = true;
        if (hittime-last_attack < 1e0-.8) then
            -- lunge
            Attack([==[Lunge]==]);
        else
            -- slash
            Attack([==[Slash]==]);
        end
        last_attack = hittime;
        isAttacking = false;
        wait(.5)
        deal_damage = 0;
    end
)

tool['Unequipped']:connect(
    function()
        deal_damage = 0;
        isAttacking = false;
    end
)

sword['Touched']:connect(
    function(hit)
        if (hit['Parent']) then
            local humanoid = hit['Parent']:FindFirstChild([==[Humanoid]==]);
            if humanoid then
                if (humanoid['Health'] > 0) then
                    TagHumanoid(humanoid); -- this function will create a new thread and remove the tag after two seconds
                    humanoid:TakeDamage(deal_damage);
                end
            end
        end
    end
)