Chat indicator update

local function drawIndicator(ply, rag)
    local indicator = ply.indicator

    if not ply:IsTyping() then
        if isentity(indicator) and indicator:IsValid() then
            indicator:Remove()
        end

        return
    end

    if not isentity(indicator) or not indicator:IsValid() then
        indicator = ClientsideModel("models/extras/info_speech.mdl", RENDERGROUP_OPAQUE)
        if not indicator:IsValid() then return end

        ply.indicator = indicator

        indicator:SetNoDraw(true)
        indicator:SetModelScale(0.6)
    end

    local curTime = CurTime()
    local lastDraw = indicator.lastDraw

    if not isnumber(lastDraw) or lastDraw < 0 then
        lastDraw = 0
    end

    indicator.lastDraw = curTime

    local pos

    if rag == nil then
        indicator:SetParent(ply)

        pos = Vector(0, 0, ply:GetModelScale() * 72 + 12)
    else
        indicator:SetParent(rag)

        pos = rag:LocalToWorld(rag:EyePos())
        pos[3] = rag:GetModelScale() * 72 + 12
    end

    indicator:SetLocalPos(pos)

    local angle = indicator:GetAngles()
    angle[2] = (angle[2] + 360 * (curTime - lastDraw)) % 360
    indicator:SetAngles(angle)

    indicator:SetupBones()
    indicator:DrawModel()
end

hook.Add("PostPlayerDraw", "DarkRP_ChatIndicator", drawIndicator)

local function indicatorOverride(rag)
    if rag:IsRagdoll() then
        local owner = rag:GetRagdollOwner()

        if owner:IsPlayer() then
            drawIndicator(owner, rag)
        end
    end

    rag:DrawModel()
end

hook.Add("CreateClientsideRagdoll", "DarkRP_ChatIndicator", function(ply, rag)
    if not ply:IsPlayer() then return end

    local oldRenderOverride = rag.RenderOverride

    if isfunction(oldRenderOverride) then
        -- This one cannot be stateless since the old render override must be called
        rag.RenderOverride = function(rag)
            if rag:IsRagdoll() then
                local owner = rag:GetRagdollOwner()

                if owner:IsPlayer() then
                    drawIndicator(owner, rag)
                end
            end

            return oldRenderOverride(rag)
        end
    else
        rag.RenderOverride = indicatorOverride
    end
end)

-- CSEnts aren't GC'd.
-- https://github.com/Facepunch/garrysmod-issues/issues/1387
hook.Add("EntityRemoved", "DarkRP_ChatIndicator", function(ply)
    if not ply:IsPlayer() then return end

    local indicator = ply.indicator

    if isentity(indicator) and indicator:IsValid() then
        indicator:Remove()
    end
end)