Scripted Helper object plugin

plugin Helper HelperTest_DisplayMesh
name:"HelperTest" 
classID:#(0x47db14fe, 0x4e9b5f90) 
category:"Standard" 
extends:dummy 
( 
	local lastSize, meshObj
 
	parameters pblock rollout:params (
		size type:#float animatable:true ui:amount default:40.0
	)
 
	rollout params "HelperTest Parameters" (
		Spinner amount "Size:" range:[0, 1e9, 40]
	)
 
	on getDisplayMesh do  (
		if (meshObj == undefined) do  (
			meshObj = createInstance teapot radius:size mapCoords:false 
			lastSize = size
		)
 
		if size != lastSize do  (
			meshObj.radius = size 
			lastSize = size
		)
		meshObj.mesh
	)
 
	tool create ( 
		on mousePoint click do (
			viewTM = getCPTM()
			nodeTM = (transMatrix worldPoint) * (inverse viewTM)
			#stop 
		)
	) 
)