// -------------------------------------------------------------
// NPC Movers STOOL - v0.5
// Made By: Suicidal.Banana
// This script is based of the standard gmod10 lamp.lua script
// Helped by: SteveUK, aschmack
// -------------------------------------------------------------

// combobox stuff
npc_types = {
	Antlion = {
		name = 'Antlion',	
		type = 'npc_antlion' 
		},
	Manhack = {
		name = 'Manhack',	
		type = 'npc_manhack' 
		},
}
// tool settings

TOOL.Category		= "Transport"
TOOL.Name		= "#NPC Movers"
TOOL.Command		= nil
TOOL.ConfigName		= nil

TOOL.ClientConVar['type'] = 'Antlion'
TOOL.ClientConVar['ropelength'] = '128'

// Add Default Language translation (saves adding it to the txt files)
if ( CLIENT ) then

	language.Add( "npc_transport", "NPC Movers" )
	language.Add( "Tool_npc_transport_name", "NPC Movers" )
	language.Add( "Tool_npc_transport_desc", "Move objects using npc's" )
	language.Add( "Tool_npc_transport_0", "Primary fire to create a roped npc, [Secondary to move it to where u aimed]-not yet" )
	language.Add( "Undone_npc_transport", "Undone NPC Mover" )
	
end
cleanup.Register( "npcs" )

function TOOL:LeftClick( trace, attach )

	if trace.Entity && trace.Entity:IsPlayer() then return false end
	if (CLIENT) then return true end
	if (attach == nil) then attach = true end
	
	// If there's no physics object then we can't constraint it!
	if ( SERVER && attach && !util.IsValidPhysicsObject( trace.Entity, trace.PhysicsBone ) ) then return false end
	
	local ply = self:GetOwner()
	
	local pos, ang = trace.HitPos + trace.HitNormal * 10, trace.HitNormal:Angle() - Angle( 0, 0, 0 )
	
	if ( !self:GetSWEP():CheckLimit( "npcs" ) ) then return false end
	
	local ntype = self:GetClientInfo('npc_transport_type') or 'Antlion'
	local ndata = npc_types[ntype]
	
	local r,g,b,a = trace.Entity:GetColor();
	npc = MakeRopedNPC( ply, pos, ang, r, g, b, a)
	
	//??
	if (!attach) then 
	
		undo.Create("NPC")
			undo.AddEntity( npc )
			undo.SetPlayer( self:GetOwner() )
		undo.Finish()
		
		return true
		
	end
	
	local length 	= pl:GetClientNumber( "npc_transport_ropelength" )
	
	
	local LPos1 = Vector( 0, 0, 0 )
	local LPos2 = trace.Entity:WorldToLocal( trace.HitPos )
	
	if (trace.Entity:IsValid()) then
		
		local phys = trace.Entity:GetPhysicsObjectNum( trace.PhysicsBone )
		if (phys:IsValid()) then
			LPos2 = phys:WorldToLocal( trace.HitPos )
		end
	
	end
	
	local constraint, rope = constraint.Rope( npc, trace.Entity, 0, trace.PhysicsBone, LPos1, LPos2, 0, length, 0, 1, material, nil )
	
	undo.Create("Roped NPC")
		undo.AddEntity( npc )
		undo.AddEntity( rope )
		undo.AddEntity( constraint )
		undo.SetPlayer( ply )
	undo.Finish()

	return true

end

function TOOL:RightClick( trace )

	//return self:LeftClick( trace, false )

end

function SetRelationship( subject, target, relationship )
	local relation = ents.Create( "ai_relationship" )
	relation:SetKeyValue( "target", target )
	relation:SetKeyValue( "subject", subject )
	relation:SetKeyValue( "disposition", tostring( relationship ) )
	relation:Spawn()

	relation:Fire( "ApplyRelationship", "", 0 )  // thanks to Devenger
	relation:Remove() // thanks Catdaemon for saying I should remove it afterwards.
end

function MakeRopedNPC( pl, Pos, Ang, r, g, b, a)

	if( RopeIncrement == nil ) then
		RopeIncrement = 0
	end
	
	if ( !pl:CheckLimit( "npcs" ) ) then return false end
	// npc_clawscanner - npc_cscanner - npc_manhack - npc_antlion - npc_helicopter
	local npc = ents.Create( pl:GetClientInfo( "npc_transport_type" ) )
	
	npc:SetPos( Pos )
	npc:SetAngles( Ang )
	npc:SetColor(r, g, b, a)
	-- npc:GetPhysicsObject():EnableCollisions( false )
	npc:SetName( "npcmover_" .. tostring( RopeIncrement ))
	
	npc:AddRelationship("!player D_LI 99") -- like the spawner
	npc:AddRelationship("player D_FR 99") -- fear all others
	npc:Fire( "ApplyRelationship", "", 0 ) -- apply
	
	if( SinglePlayer() ) then
		SetRelationship ( "npcmover_" .. tostring( RopeIncrement ), "!player", 3)
	else
		SetRelationship ( "npcmover_" .. tostring( RopeIncrement ), "player", 3 )
	end
	
	npc:Spawn()
	pl:AddCount( "npcs", npc )
	pl:AddCleanup( "npcs", npc )
	
	RopeIncrement = RopeIncrement + 1
	
	return npc
end

duplicator.RegisterEntityClass( "npc_antlion", MakeRopedNPC, "Pos", "Ang", "r", "g", "b", "a")

function TOOL.BuildCPanel( Panel )
Panel:AddControl( "Header", { Text = "#Tool_npc_transport_name", Description	= "#Tool_npc_transport_desc" }  )
	
	
	local combo = {}
	combo.Label = 'NPC'
	combo.MenuButton = 0
	combo.Folder = 'settings/menu/main/construct/npc_transport'
	combo.Options = {}
	
	for key,weapon in pairs(npc_types) do
		combo.Options[weapon.name] = { npc_type = key }
	end
	
	Panel:AddControl('ComboBox', combo) 
	
	CPanel:AddControl( "Slider",  { Label	= "#Ropelength",
					Type	= "Float",
					Min		= 50,
					Max		= 500,
					Command = "npc_transport_ropelength"}	 )
	
end