if SERVER then
	AddCSLuaFile( "shared.lua" )
end

if CLIENT  then
	SWEP.Slot	= 2
	SWEP.SlotPos	= 2
	SWEP.ViewModelFlip = false --true for CSS, false for non-css
end

SWEP.Base = "weapon_base" --weapon_zw_base
SWEP.PrintName	= "ZW Weapon Base" --name
SWEP.Author = "Fizzadar"
SWEP.Instructions = "Shoot stuff."

SWEP.ViewModel = "models/weapons/v_357.mdl" --view model
SWEP.WorldModel = "models/weapons/w_357.mdl" --world model

SWEP.ShootWhileSprinting = true --can they shoot while sprinting?
SWEP.HoldType = "pistol" --pistol, ar2, normal, melee, smg, grenade, shotgun
SWEP.MuzzleEffect = "rg_muzzle_pistol" --rg_muzzle_grenade, rg_muzzle_highcal, rg_muzzle_hmg, rg_muzzle_pistol, rg_muzzle_rifle, rg_muzzle_silenced
SWEP.ShellEffect = "rg_shelleject" --rg_shelleject, rg_shelleject_rifle, rg_shelleject_shotgun
SWEP.MuzzleAttachment = "1" -- Should be "1" for CSS models or "muzzle" for hl2 models
SWEP.ShellEjectAttachment = "2" -- Should be "2" for CSS models or "1" for hl2 models
SWEP.IconLetter = "f" --get from other weps (image that appears in wep selection)

SWEP.Primary.ClipSize = 6 --clip size
SWEP.Primary.Ammo = "Pistol" --pistol, buckshot, smg1
SWEP.Primary.Damage = 50 --damage
SWEP.Primary.Spread = 0.03 --bullet spread (make it tiny)
SWEP.Primary.Bullets = 1 --bullets to fire
SWEP.Primary.FireSound = Sound( "Weapon_357.Single" ) --shooting sound
SWEP.Primary.Delay = 0.35 --delay per shot
SWEP.Primary.Automatic = false --automatic fire?
SWEP.Primary.Recoil = 1

--//////////////////////////End Config

SWEP.Contact = ""
SWEP.Purpose = ""
SWEP.Spawnable = true
SWEP.AdminSpawnable = true

if( SERVER ) then
	SWEP.AutoSwitchTo = false
	SWEP.AutoSwitchFrom = false
end

if( CLIENT ) then
	SWEP.DrawAmmo	= true
	SWEP.DrawCrosshair = false
	SWEP.ViewModelFOV = 62
end

--fixed weapons giving ammo
SWEP.Primary.DefaultClip = SWEP.Primary.ClipSize

--secondary ammo (no secondary fire)
SWEP.Secondary.ClipSize = -1
SWEP.Secondary.DefaultClip = -1
SWEP.Secondary.Automatic = false
SWEP.Secondary.Ammo = "none"

util.PrecacheSound( SWEP.Primary.FireSound )

--startup
function SWEP:Initialize()
	if( SERVER ) then
		self:SetWeaponHoldType( self.Weapon.HoldType )
	end
end

--get the wep out
function SWEP:Deploy()
	if self.DeploySound then
		self.Owner:EmitSound( self.DeploySound )
	end
	self.Weapon:SendWeaponAnim( ACT_VM_DEPLOY )
	return true
end

--calculate recoil
function SWEP:CalcRecoil()
	--basic start
	local RecoilBase = self.Primary.Recoil
	if self.Owner:KeyDown( IN_MOVELEFT ) or self.Owner:KeyDown( IN_MOVERIGHT ) or self.Owner:KeyDown( IN_FORWARD ) or self.Owner:KeyDown( IN_BACK ) then
		RecoilBase = RecoilBase * 1.2
		if self.Owner:KeyDown( IN_SPEED ) then
			RecoilBase = RecoilBase * 1.2
		end
	end
	RecoilBase = RecoilBase * 2
	--compensate for crouch
	if self.Owner:KeyDown( IN_DUCK ) then
		RecoilBase = RecoilBase * 0.25
	end
	--compensate for ironsights
	if self.Owner:KeyDown( IN_ATTACK2 ) then
		RecoilBase = RecoilBase * 0.75
	end
	return Angle( ( math.Clamp( math.random( RecoilBase - 10, RecoilBase + 10 ) , 0.3, 100 ) ) * -1, 0, 0 )
end

--left click attack
function SWEP:PrimaryAttack()
	if not self:CanPrimaryAttack() or self.Owner:WaterLevel() >= 2 then return end
	self.Weapon:SetNextPrimaryFire( CurTime() + self.Weapon.Primary.Delay )
	self.Owner:MuzzleFlash()
	self.Owner:SetAnimation( PLAYER_ATTACK1 )
	self.Weapon:SendWeaponAnim( ACT_VM_PRIMARYATTACK )
	if SERVER then self.Owner:EmitSound( self.Primary.FireSound ) end
	self:TakePrimaryAmmo( 1 )
	self.Owner:ViewPunch( self:CalcRecoil() * 0.2 )
	self.Owner:SetEyeAngles( self.Owner:EyeAngles() + ( self:CalcRecoil() * 0.2 ) )
	local bullet = {}
	bullet.Num 		= self.Weapon.Primary.Bullets
	bullet.Src 		= self.Owner:GetShootPos()
	bullet.Dir 		= self.Owner:GetAimVector()
	bullet.Spread		= Vector( self.Weapon.Primary.Spread, self.Weapon.Primary.Spread, 0 )
	bullet.Tracer		= 1
	bullet.Force		= self.Weapon.Primary.Damage
	bullet.Damage		= self.Weapon.Primary.Damage
	self.Owner:FireBullets( bullet )
	if CLIENT then
		if guneffects then
			local fx = EffectData()
			fx:SetEntity(self.Weapon)
			fx:SetOrigin(self.Owner:GetShootPos())
			fx:SetNormal(self.Owner:GetAimVector())
			fx:SetAttachment(self.MuzzleAttachment)
			util.Effect(self.MuzzleEffect,fx)

			local fx = EffectData()
			fx:SetEntity(self.Weapon)
			fx:SetNormal(self.Owner:GetAimVector())
			fx:SetAttachment(self.ShellEjectAttachment)
			util.Effect(self.ShellEffect,fx)
		end
	end
end

function SWEP:CanPrimaryAttack()
	if self.Weapon:Clip1() <= 0 then
		self.Weapon:SetNextPrimaryFire( CurTime() + 0.5 )
		self.Owner:EmitSound( "Weapons/ClipEmpty_Pistol.wav" )
		return false
	end
	local IsMoving = false
	if self.Owner:KeyDown( IN_MOVELEFT ) or self.Owner:KeyDown( IN_MOVERIGHT ) or self.Owner:KeyDown( IN_FORWARD ) or self.Owner:KeyDown( IN_BACK ) then
		IsMoving = true
	end
	if self.Owner:KeyDown( IN_SPEED ) and IsMoving and not self.ShootWhileSprinting then
		return false
	end
	return true
end

--secondary
function SWEP:SecondaryAttack()
	return false
end

--think
function SWEP:Think()
	if self.Owner:KeyPressed( IN_ATTACK2 ) then
		if self.IsSniper then
			if not self:GetNWBool( "IsScoped" ) then
				self:SetNWBool( "IsScoped", true )
				self.Owner:SetFOV( 40, 0.15 )
			end
		else
			self.Owner:SetFOV( 65, 0.15 )
			self.DrawCrosshair = true
		end
	end
	if self.Owner:KeyReleased( IN_ATTACK2 ) then
		if self.IsSniper then
			if self:GetNWBool( "IsScoped" ) then
				self:SetNWBool( "IsScoped", false )
				self.Owner:SetFOV( 0, 0.15 )
			end
		else
			self.Owner:SetFOV( 0, 0.15 )
			self.DrawCrosshair = false
		end
	end
end

--reload
function SWEP:Reload()
	self.Weapon:DefaultReload( ACT_VM_RELOAD )
	self.Owner:SetFOV( 0, 0.15 )
end

--weapon icon in selection bit
function SWEP:DrawWeaponSelection( x, y, wide, tall, alpha )
	--draw.SimpleText( self.Weapon.IconLetter, "CSSelectIcons", x + wide/2, y + tall*0.2, Color( 255, 210, 0, 255 ), TEXT_ALIGN_CENTER )
	draw.SimpleText( self.Weapon.PrintName, "ZWFontTypeSmall", x + wide/2, y + tall*0.2, Color( 255, 210, 0, 255 ), TEXT_ALIGN_CENTER )
end

--scopes
function SWEP:DrawHUD()
	if not self.IsSniper then return end
	if self:GetNWBool( "IsScoped" ) then
		local w = ScrW()
		local h = ScrH()
		local wr = ( h / 3 ) * 4
		--draw scope
		surface.SetTexture( surface.GetTextureID( "gmod/scope" ) )
		surface.SetDrawColor( 0, 0, 0, 255 )
		surface.DrawTexturedRect( ( w / 2 ) - wr / 2, 0, wr, h )

		surface.SetDrawColor( 0, 0, 0, 255 )
		surface.DrawRect( 0, 0, ( w / 2 ) - wr / 2, h )
		surface.DrawRect( ( w / 2 ) + wr / 2, 0, w - ( ( w / 2 ) + wr / 2 ), h )
		surface.DrawLine( 0, h * 0.50, w, h * 0.50 )
		surface.DrawLine( w * 0.50, 0, w * 0.50, h )

		local tr = util.TraceLine( util.GetPlayerTrace(self.Owner) )
		local dist = math.Clamp( math.ceil( tr.HitPos:Distance( self.Owner:GetPos() ) / 16 ), 2, 999999 )
		local target = "N/A"
		if tr.Entity:IsNPC() then
			target = tr.Entity:GetClass()
		elseif tr.Entity:IsPlayer() then
			target = tr.Entity:GetName()
		end

		surface.SetFont( "Default" )
		surface.SetTextColor( 255, 255, 255, 255 )

		surface.SetTextPos( w * 0.90, h * 0.50 )
		surface.DrawText( "Distance: "..dist.." feet" )

		surface.SetTextPos( w * 0.90, h * 0.52 )
		surface.DrawText( "Target: "..target )
	end
end

--sprint stuff
SWEP.RunArmAngle  = Angle( 10, 50, 20 )
SWEP.RunArmOffset = Vector( 1, 2, -5 ) --down, forward, right
function SWEP:GetViewModelPosition( pos, ang )
	if self.ShootWhileSprinting then
		return pos, ang
	end
	local Owner = self.Owner
	if (!Owner) then
		return pos, ang
	end
	local DashDelta = 0
	// If we're running, or have just stopped running, lerp between the
	local IsMoving = false
	if self.Owner:KeyDown( IN_MOVELEFT ) or self.Owner:KeyDown( IN_MOVERIGHT ) or self.Owner:KeyDown( IN_FORWARD ) or self.Owner:KeyDown( IN_BACK ) then
		IsMoving = true
	end
	if self.Owner:KeyDown( IN_SPEED ) and IsMoving then
		if (!self.DashStartTime) then
			self.DashStartTime = CurTime()
		end
		DashDelta = math.Clamp( ((CurTime() - self.DashStartTime) / 0.1) ^ 1.2, 0, 1 )
	else
		if ( self.DashStartTime ) then
			self.DashEndTime = CurTime()
		end
		if ( self.DashEndTime ) then
			DashDelta = math.Clamp( ((CurTime() - self.DashEndTime) / 0.1) ^ 1.2, 0, 1 )
			DashDelta = 1 - DashDelta
			if ( DashDelta == 0 ) then self.DashEndTime = nil end
		end
		self.DashStartTime = nil
	end
	if ( DashDelta ) then
		local Down = ang:Up() * -1
		local Right = ang:Right()
		local Forward = ang:Forward()
		// Offset the viewmodel to self.RunArmOffset
		pos = pos + ( Down * self.RunArmOffset.x + Forward * self.RunArmOffset.y + Right * self.RunArmOffset.z ) * DashDelta
		// Rotate the viewmodel to self.RunArmAngle
		ang:RotateAroundAxis( Right,	self.RunArmAngle.pitch * DashDelta )
		ang:RotateAroundAxis( Down,  	self.RunArmAngle.yaw   * DashDelta )
		ang:RotateAroundAxis( Forward,  self.RunArmAngle.roll  * DashDelta )
	end
	return pos, ang
end