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lua/entities/lvs_base_gunner/sv_ai.lua

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+--[[
+| This file was obtained through the combined efforts
+| of Madbluntz & Plymouth Antiquarian Society.
+|
+| Credits: lifestorm, Gregory Wayne Rossel JR.,
+| 	Maloy, DrPepper10 @ RIP, Atle!
+|
+| Visit for more: https://plymouth.thetwilightzone.ru/
+--]]
+
+
+function ENT:GetAimVector()
+	if self:GetAI() then
+		local Dir = self._ai_look_dir or self.VectorNull
+
+		self:SetNWAimVector( Dir )
+
+		return Dir
+	end
+
+	local Driver = self:GetDriver()
+
+	if IsValid( Driver ) then
+		if self._AimVectorUnlocked then
+			local pod = self:GetDriverSeat()
+
+			if IsValid( pod ) then
+				return pod:WorldToLocalAngles( Driver:EyeAngles() ):Forward()
+			end
+		end
+
+		return Driver:GetAimVector()
+	else
+		return self:GetForward()
+	end
+end
+
+function ENT:AITargetInFront( ent, range )
+	if not IsValid( ent ) then return false end
+
+	if not range then range = 45 end
+
+	local DirToTarget = (ent:GetPos() - self:GetPos()):GetNormalized()
+
+	local InFront = math.deg( math.acos( math.Clamp( self:GetForward():Dot( DirToTarget ) ,-1,1) ) ) < range
+
+	return InFront
+end
+
+function ENT:RunAI()
+	local Target = self:AIGetTarget()
+
+	if not IsValid( Target ) then
+		self._ai_look_dir = self:GetForward()
+		self._AIFireInput = false
+
+		return
+	end
+
+	local TargetPos = Target:GetPos()
+
+	if self._AIFireInput then
+		local T = CurTime() * 0.5 + self:EntIndex()
+		local X = math.cos( T ) * 32
+		local Y = math.sin( T ) * 32
+		local Z = math.sin( math.cos( T / 0.5 ) * math.pi ) * 32
+		TargetPos = Target:LocalToWorld( Target:OBBCenter() + Vector(X,Y,Z) )
+	end
+
+	self._ai_look_dir = (TargetPos - self:GetPos()):GetNormalized()
+
+	local StartPos = self:GetPos()
+
+	local trace = util.TraceHull( {
+		start =  StartPos,
+		endpos = (StartPos + self._ai_look_dir * 50000),
+		mins = Vector( -50, -50, -50 ),
+		maxs = Vector( 50, 50, 50 ),
+		filter = self:GetCrosshairFilterEnts()
+	} )
+
+	if not self:AIHasWeapon( self:GetSelectedWeapon() ) then
+		self._AIFireInput = false
+
+		return
+	end
+
+	if IsValid( trace.Entity ) and trace.Entity.GetAITEAM then
+		self._AIFireInput = (trace.Entity:GetAITEAM() ~= self:GetAITEAM() or trace.Entity:GetAITEAM() == 0)
+	else
+		self._AIFireInput = true
+	end
+end
+
+function ENT:AIGetTarget()
+	local Base = self:GetVehicle()
+
+	if not IsValid( Base ) then return NULL end
+
+	return Base:AIGetTarget()
+end