How to make an NPC follow/attack players? (EDITED)

Hi, my previous question was inaccurate so here is the accurate one. My dinosaur NPC DOES follow other models with humanoids but not players with humanoids. If I make a brick and insert a humanoid into that brick then the Dinosaur moves to that humanoid but whenever a player goes near it the dinosaur just ignores the player. So it will follow other parts and models with humanoids but not players. Does anyone know how to fix this and make it the other way around (follows players but not models)? Or if you can't make it ignore models then can anyone at least tell me how to make it follow players too? Here is the script, comment below if you have any questions before you can answer: NOTE: Rex is the name of the dinosaur's Humanoid

local larm = script.Parent:FindFirstChild("Left Arm")
local rarm = script.Parent:FindFirstChild("Right Arm")
local mouth = script.Parent:FindFirstChild("Jaw")


while wait() do function findNearestTorso(pos)
	local list = game.Workspace:children()
	local torso = nil
	local dist = 1000
	local temp = nil
	local human = nil
	local temp2 = nil
	for x = 1, #list do
		temp2 = list[x]
		if (temp2.className == "Model") and (temp2 ~= script.Parent) then
			temp = temp2:findFirstChild("Torso")
			human = temp2:findFirstChild("Humanoid")
			if (temp ~= nil) and (human ~= nil) and (human.Health > 0) then
				if (temp.Position - pos).magnitude < dist then
					torso = temp
					dist = (temp.Position - pos).magnitude
				end
			end
		end
	end
	return torso
end

function Hit(hit)
	local human = hit.Parent:FindFirstChild("Humanoid")
	if human ~= nil then
		human.Health =  human.Health -10
		wait(0.001)
		script.Parent.Head.Sound5:Stop()
		script.Parent.Head.Sound6:Stop()
		script.Parent.Head.Sound9:Stop()
		script.Parent.Head.Sound10:Stop()
		script.Parent.Head.Sound8:Play()
		script.Parent.Head.Sound2:Play()
		script.Parent.Rex.WalkSpeed = 0
		script.Parent.Torso.Neck.DesiredAngle = 0
		script.Parent.Head.JawJoint.DesiredAngle = 0
		wait(0.001)
		script.Parent.Torso.Neck.DesiredAngle = 0.1
		script.Parent.Head.JawJoint.DesiredAngle = 0.1
		wait(0.001)
		script.Parent.Torso.Neck.DesiredAngle = 0.2
		script.Parent.Head.JawJoint.DesiredAngle = 0.2
		wait(0.001)
		script.Parent.Torso.Neck.DesiredAngle = 0.3
		script.Parent.Head.JawJoint.DesiredAngle = 0.3
		wait(0.001)
		script.Parent.Torso.Neck.DesiredAngle = 0.4
		script.Parent.Head.JawJoint.DesiredAngle = 0.4
		wait(0.001)
		script.Parent.Torso.Neck.DesiredAngle = 0.5
		script.Parent.Head.JawJoint.DesiredAngle = 0.5
		wait(0.001)
		script.Parent.Torso.Neck.DesiredAngle = 0.7
		script.Parent.Head.JawJoint.DesiredAngle = 0.7
		wait(0.001)
		script.Parent.Torso.Neck.DesiredAngle = 0.9
		script.Parent.Head.JawJoint.DesiredAngle = 0.9
		wait(0.001)
		script.Parent.Torso.Neck.DesiredAngle = 1
		script.Parent.Head.JawJoint.DesiredAngle = 1
		wait(0.001)
		script.Parent.Torso.Neck.DesiredAngle = 0.9
		script.Parent.Head.JawJoint.DesiredAngle = 0.9
		wait(0.001)
		script.Parent.Torso.Neck.DesiredAngle = 0.7
		script.Parent.Head.JawJoint.DesiredAngle = 0.7
		wait(0.001)
		script.Parent.Torso.Neck.DesiredAngle = 0.5
		script.Parent.Head.JawJoint.DesiredAngle = 0.5
		wait(0.001)
		script.Parent.Torso.Neck.DesiredAngle = 0.4
		script.Parent.Head.JawJoint.DesiredAngle = 0.4
		wait(0.001)
		script.Parent.Torso.Neck.DesiredAngle = 0.3
		script.Parent.Head.JawJoint.DesiredAngle = 0.3
		wait(0.001)
		script.Parent.Torso.Neck.DesiredAngle = 0.2
		script.Parent.Head.JawJoint.DesiredAngle = 0.2
		wait(0.001)
		script.Parent.Torso.Neck.DesiredAngle = 0.1
		script.Parent.Head.JawJoint.DesiredAngle = 0.1
		wait(0.001)
		script.Parent.Torso.Neck.DesiredAngle = 0
		script.Parent.Head.JawJoint.DesiredAngle = 0
		script.Parent.Head.Sound7:Play()
		wait(0.7)
		script.Parent.Rex.WalkSpeed = 40
	end
end

larm.Touched:connect(Hit)
rarm.Touched:connect(Hit)
mouth.Touched:connect(Hit)



while true do
	wait(0.1)
	local target = findNearestTorso(script.Parent.Torso.Position)
	if target ~= nil then
		script.Parent.Rex:MoveTo(target.Position, target)
	end
end
end