drawhud nanites

if SERVER then AddCSLuaFile() end

ENT.Type = "anim"
--ENT.Base = "base_gmodentity"

ENT.PrintName		= "Nanites"
ENT.Author			= "RKellyJelly"
ENT.Contact			= ""
ENT.Purpose			= "Healing a player"
ENT.Information		= "Gives 50 health"
ENT.Category		= "TTT Health Pickup"

--makes it a part of the TTT base ammo type so it's part of the group that spawns from random ammo pickups
ENT.Base = "base_ammo_ttt"
--set the model location for the entity so it can be seen by the player and be interacted with
ENT.Model = Model("models/nanites.mdl")
--makes it so it can automatically spawn from places where random ammo is set to spawn in ttt gamemode
ENT.AutoSpawnable 		= true

ENT.Spawnable			= true
ENT.AdminSpawnable		= true

local healthamount = 40 //How much health does the player get?
local nanoshield = nil

--if I want to create a physics based object that would be kicked around when the player walks over it I could enable this

--[[
if Server then

		function ENT:Initialize()

		self.Entity:SetModel( "models/nanites.mdl" )
		self.Entity:PhysicsInit( SOLID_VPHYSICS )
		self.Entity:SetMoveType( MOVETYPE_VPHYSICS )
		--self.Entity:SetSolid( SOLID_VPHYSICS )
		self.Entity:SetUseType( SIMPLE_USE )
		local phys = self.Entity:GetPhysicsObject()

		if ( phys:IsValid() ) then

			phys:Wake()

		end

end
]]--

--when the player touches it, this checks to see if the player is less than 150 health, and if so, adds health


--Activated if a player touches the nanite suppliment
function ENT:StartTouch( activator, ent )
	--check to see if the round is active before a player can pick this item up
	if GetRoundState() == ROUND_ACTIVE then
		--check if the activator is a player
		if ( activator:IsPlayer() ) then
			--if the player is at 100 or higher health do not let them use the nanites
			if ( activator:Health() >= 100 ) then end --return end
            --if healing would raise health above 100, set it to 100
				shield = healthamount
			--calculate the amount that would be overhealed for use in adding the rest to the nanoshield
			if ( activator:Health() > 100 - healthamount ) then
				shield = activator:Health() + healthamount - 100
				--set the health to 100
				activator:SetHealth( 100 )
			else
				--give the player the value of healthamount added to their current health, there is no overheal to add to the shield
				activator:SetHealth( activator:Health() + healthamount )
				shield = 0
			end

			--[[nanoshield hook for absorbing bullet damage]]--
			--This adds the hook to the player the first time nanites are picked up
			--check to see if this script has already been run before via picking up nanites in this round already because we don't want multiple of the same hooks
			--the nanoshield variable is declared immediately after this so the hook below will work
			if nanoshield == nil then
				print ("nanoshield damage hook engaged")
					hook.Add( "EntityTakeDamage", "BulletAbsorb", function( target, dmginfo )

						if ( target:IsPlayer() and dmginfo:IsFallDamage()) then
						print( "fall damage located")
						print(dmginfo:GetDamage())

						ouchies = dmginfo:GetDamage()

							--figure out how much damage to give the player while a shield is in place
							if  ( ouchies - nanoshield ) > 0 then
								dmginfo:SetDamage( dmginfo:GetDamage() - nanoshield )
							else
								dmginfo:SetDamage( 0 )
							end
							--remove the shield if it's all used up
							if ( nanoshield - ouchies ) <= 0 then
								nanoshield = 0

								print( "nanoshield is gone" )
								--you're out of nanites so you will bleed from now on
								activator:SetBloodColor(BLOOD_COLOR_RED)
							else
								--calculate the new nanoshield value
								nanoshield = (nanoshield - ouchies)
								print( nanoshield )
							end

						end

					end )

					hook.Add( "HUDPaint", "nanohud", function()
							surface.SetDrawColor( 0, 0, 0, 128 )
							surface.DrawRect( 50, 50, 128, 128 )
							draw.SimpleText(nanoshield, "NaniteFont",100,100,bluenano,20,20)
					end )

			end

		--[[nanoshield variable initialization and values]]--
			--check to see if the nanoshield variable has already been established due to this item already being picked up before
			if nanoshield != nil then
				--if there are two full health amounts worth of nanoshield then you can't pick up the nanites as you have full health and shield
				if nanoshield == healthamount * 2 then return end
				--if you already have one full shield or greater then set your shields to max
				if nanoshield >= healthamount then
				--nanoshield value can't be greater than 2 full shield charges
					nanoshield = healthamount * 2



				else
				--add 'healthamount' shield to already existing shield
					nanoshield = nanoshield + shield



				end
			else
				--sets the nanoshield value for the first time nanites are picked up to the overheal amount
				nanoshield = shield

				--being shot with a bullet will cause sparks while the shield is active and being absorbed by the nanites
				activator:SetBloodColor(BLOOD_COLOR_MECH)
			end

			--print("Trying to initiate drawhud")
			--drawhud( nanoshield )

			print( "printing nanoshield value" )
			print( nanoshield )


			--play sound upon using the nanites
			activator:EmitSound("nanites/nanites.wav", 50, 100)

			--make the nanites disappear if a player uses them
			self.Entity:Remove()
			return nanoshield
		end
	else
		--if the round hasn't begun or is over, display this chat message
		activator:ChatPrint( 'We are sorry, Nautilus Microhealth Systemsâ„¢ Healing Nanites may only be used during the round.' )
	end

end


--draw the nanite shield hud
local bluenano = Color(172,230,255,255)



if CLIENT then
surface.CreateFont("NaniteFont",{
                font = "Felix Titling", -- Use the font-name which is shown to you by your operating system Font Viewer, not the file name
                size = 20,
                weight = 100,
                blursize = 0,
                scanlines = 0,
                antialias = true,
                underline = false,
                italic = false,
                strikeout = false,
                symbol = false,
                rotary = false,
                shadow = false,
                additive = false,
                outline = false
            })
end


print ("nanoshield hud hook engaged")


--spawn this item in the world when the map loads
function ENT:SpawnFunction( ply, tr )

	if ( !tr.Hit ) then return end

	local SpawnPos = tr.HitPos + tr.HitNormal * 16

	local ent = ents.Create( "nanite_suppliment" )
	ent:SetPos( SpawnPos )
	ent:Spawn()
	ent:Activate()

	return ent

end