Gmod-PropHuntExtended/Source/gamemodes/prophuntextended/gamemode/player_class/class_hider.lua

--[[
	The MIT License (MIT)
	
	Copyright (c) 2015 Xaymar

	Permission is hereby granted, free of charge, to any person obtaining a copy
	of this software and associated documentation files (the "Software"), to deal
	in the Software without restriction, including without limitation the rights
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	The above copyright notice and this permission notice shall be included in all
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	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	SOFTWARE.
--]]

DEFINE_BASECLASS( "Default" )
local CLASS = {}
CLASS.DisplayName		= "Hider"
CLASS.DuckSpeed			= 0.0		-- How fast to go from not ducking, to ducking
CLASS.UnDuckSpeed		= 0.0		-- How fast to go from ducking, to not ducking
CLASS.CanUseFlashlight	= false		-- Can we use the flashlight
CLASS.UseVMHands		= false		-- Uses viewmodel hands

-- ------------------------------------------------------------------------- --
--! Server-Side
-- ------------------------------------------------------------------------- --
-- Spawn
function CLASS:Spawn()
	print("Prop Hunt: Hider '"..self.Player:GetName().."' (SteamID: "..self.Player:SteamID()..") spawned.")
	BaseClass.Spawn(self, self.Player)
	
	-- Sprinting
	if (!GAMEMODE.Config:Sprinting()) then
		self.Player:SetRunSpeed(self.WalkSpeed)
	end
	
	-- Settings
	self.Player:SetMaxHealth(GAMEMODE.Config.Hider:HealthMax())
	self.Player:SetHealth(GAMEMODE.Config.Hider:Health())
	self.Player:SetRenderMode(RENDERMODE_TRANSALPHA)
	self.Player:SetColor(Color(0,0,0,0))
	
	-- Hull & View Offset
	GAMEMODE:PlayerHullFromEntity(self.Player, nil)
	GAMEMODE:PlayerSetViewOffset(self.Player, Vector(0,0,72), Vector(0,0,72))
	
	-- Collision Group
	self.Player:SetCollisionGroup(COLLISION_GROUP_PLAYER)
	
	-- Prop Stuff
	self.Player.Data.Prop = ents.Create("ph_prop")
	self.Player.Data.Prop:SetOwner(self.Player)
	self.Player.Data.Prop:Spawn()
	self.Player:DeleteOnRemove(self.Player.Data.Prop)
	
	-- Assign Hands (Auto Networked Sync!)
	local oldhands = self.Player:GetHands()
	if (IsValid(oldhands)) then oldhands:Remove() end
	self.Player:SetHands(self.Player.Data.Prop)
end

-- Death
function CLASS:PostDeath(attacker, dmginfo)
	print("Prop Hunt: Hider '"..self.Player:GetName().."' (SteamID: "..self.Player:SteamID()..") died.")
	BaseClass.PostDeath(self, inflictor, attacker)
	
	-- Delete Hands Model
	if IsValid(self.Player:GetHands()) then
		self.Player:GetHands():Remove()
	end
	if IsValid(self.Player.Data.Prop) then
		self.Player.Data.Prop:Remove()
	end
	
	-- Collision Group
	self.Player:SetCollisionGroup(COLLISION_GROUP_PLAYER)
	
	-- Hull
	GAMEMODE:PlayerHullFromEntity(self.Player, nil)
	
	-- Rendering
	self.Player:SetRenderMode(RENDERMODE_NORMAL)
	self.Player:SetColor(Color(255,255,255,255))
end

function CLASS:CanSuicide()
	return true
end

function CLASS:DeathThink()
	if 1 > (CurTime() - self.Player.Data.AliveTime) then
		return false
	end
	
	self.Player:Spawn()
	return true
end

-- Visible Stuff
function CLASS:SetModel() self.Player:SetModel("models/Gibs/Antlion_gib_small_3.mdl") end -- does "" even work?

-- Interaction
function CLASS:Use(ent)
	if (!(BaseClass.Use(self, ent))) then
		return false
	end
	
	-- Allow interacting while crouched instead of turning into the prop.
	if (self.Player:Crouching()) then 
		return true
	end
	
	-- Check Lists and other Parameters
	if (!table.HasValue(GAMEMODE.Config.Lists:ClassWhitelist(), ent:GetClass()))-- Class is not Whitelisted
		|| (GAMEMODE.Config.Lists.ModelBlacklist[ent:GetModel()])				-- Model is Blacklisted
		|| !((ent:GetPhysicsObject()) && (ent:GetPhysicsObject():IsValid()))	-- Entity doesn't have Physics
	then
		print("Prop Hunt: Hider '"..self.Player:GetName().."' (SteamID: "..self.Player:SteamID()..") attempted to turn into "..ent:GetClass().." ("..ent:GetModel()..").")
		return true -- Use instead of erroring.
	end
	
	-- Turn into the prop
	local eProp = self.Player:GetHands()
	util.PrecacheModel(ent:GetModel())
	eProp:SetModel(ent:GetModel())
	eProp:SetSkin(ent:GetSkin())
	eProp:SetHealth(100)
	eProp:SetMaxHealth(100)
	eProp:SetRenderMode(RENDERMODE_TRANSALPHA)
	
	-- Hull (Optimize into single function? Code is repeated often)
	local hull = GAMEMODE:PlayerHullFromEntity(self.Player, ent)
	
	-- View Offset
	local vo = Vector(0, 0, hull[2].z)
	GAMEMODE:PlayerSetViewOffset(self.Player, vo, vo)
			
	-- Health Scaling
	if (GAMEMODE.Config.Hider:HealthScaling()) then
		local prc = math.Clamp(self.Player:Health() / self.Player:GetMaxHealth(), 0, 1)
		local maxhealth = math.Clamp(ent:GetPhysicsObject():GetVolume() / 250, 1, GAMEMODE.Config.Hider:HealthScalingMax())
		local health = math.Clamp(maxhealth * prc, 1, maxhealth)
		
		-- Set Health
		self.Player:SetHealth(health)
		self.Player:SetMaxHealth(maxhealth)
	end
	
	print("Prop Hunt: Hider '"..self.Player:GetName().."' (SteamID: "..self.Player:SteamID()..") turned into "..ent:GetClass().." ("..ent:GetModel()..").")
end

function CLASS:AllowPickup(ent) return true end

-- ------------------------------------------------------------------------- --
--! Shared
-- ------------------------------------------------------------------------- --

-- ------------------------------------------------------------------------- --
--! Client-Side
-- ------------------------------------------------------------------------- --
function CLASS:ClientSpawn()
	print("Prop Hunt CL: Hider '"..self.Player:GetName().."' (SteamID: "..self.Player:SteamID()..") spawned.")
	BaseClass.ClientSpawn(self, self.Player)
	
	self.Player:SetRenderMode(RENDERMODE_TRANSALPHA)
end

function CLASS:ShouldDrawLocal()
	return false
end

function CLASS:CalcView(camdata)
	-- ThirdPerson Settings (ToDo: client config maybe?)
	local maxViewDist = 100
	local viewDist = self.Player.Data.ViewDistance or 0
	
	-- First/Third
	if (self.Player.Data.ThirdPerson) then
		if (IsValid(self.Player:GetHands())) then
			self.Player:GetHands():SetRenderMode(RENDERMODE_TRANSALPHA)
			self.Player:GetHands():SetColor(Color(255, 255, 255, 127))
		end
		
		-- Incremental Distance instead of instant.
		viewDist = math.Clamp(viewDist * 0.95 + maxViewDist * 0.05, 0, maxViewDist) -- Zoom Out
	else
		if (IsValid(self.Player:GetHands())) then
			self.Player:GetHands():SetRenderMode(RENDERMODE_TRANSALPHA)
			self.Player:GetHands():SetColor(Color(255, 255, 255, 0))
		end
		
		viewDist = math.Clamp(viewDist * 0.95, 0, maxViewDist) -- Zoom In
	end
	
	-- Trace from Player to would-be camera position
	local trace = {
		start = camdata.origin,
		endpos = camdata.origin - (camdata.angles:Forward() * viewDist),
		--filter = { "worldspawn", "ph_prop" },
		filter = function(ent)
			local filter = { "worldspawn", "ph_prop" }
			
			if (ent:IsPlayer())
				|| (table.HasValue(filter, ent:GetClass()))
				|| (ent == LocalPlayer()) || (ent == LocalPlayer():GetHands()) then
				return false
			end
			return true
		end
	}
	local result = util.TraceLine(trace)
	
	-- The Camera has a Sphere radius of 10.
	if (result.Hit) then -- Configurable?
		viewDist = math.Clamp(result.HitPos:Distance(camdata.origin), 0, maxViewDist)
	end
	
	-- Store ViewDistance
	self.Player.Data.ViewDistance = viewDist
	
	-- Adjust CamData
	camdata.origin = camdata.origin - (camdata.angles:Forward() * math.Clamp(viewDist - 10, 0, maxViewDist))
	camdata.drawviewer = false
	
	-- Return
	return camdata
end

-- Register
player_manager.RegisterClass("Hider", CLASS, "Default")