general refactor; script updates; new sample script added;

scripts/debug_draw.lua

@@ -1,4 +1,5 @@
 -- This script will draw some debug primitives in the world such as line, point, box
+killProcesses()  -- stops all running lua coroutine processes
 
 backlog_post("---> START SCRIPT: debug_draw.lua")
 

scripts/emitter_burst.lua

@@ -0,0 +1,23 @@
+-- This script will load a particle emitter model and burst-spawn particles from it periodically
+killProcesses()  -- stops all running lua coroutine processes
+
+backlog_post("---> START SCRIPT: emitter_burst.lua")
+
+scene = GetScene()
+scene.Clear()
+LoadModel("../models/emitter_smoke.wiscene")
+emitter_entity = scene.Entity_FindByName("smoke")  -- query the emitter entity by name
+emitter_component = scene.Component_GetEmitter(emitter_entity)
+emitter_component.SetEmitCount(0)  -- don't emit continuously
+emitter_component.SetNormalFactor(20)  -- set starting speed to particles
+emitter_component.SetLife(0.3)  -- particles will be short lived (around 0.3 sec if we don't account for life randomness)
+emitter_component.SetSize(0.1)  -- adjust starting particle size
+
+runProcess(function()
+	while true do
+		emitter_component.Burst(50)  -- Burst 50 particles at once
+		waitSeconds(2)  -- then wait for 2 seconds before bursting again
+	end
+end)
+
+backlog_post("---> END SCRIPT: emitter_burst.lua")

scripts/move_object.lua

@@ -1,4 +1,5 @@
 -- This script will load a teapot model with lights, and move the teapot's lid up and down
+killProcesses()  -- stops all running lua coroutine processes
 
 backlog_post("---> START SCRIPT: move_object.lua")
 

scripts/pick.lua

@@ -1,4 +1,5 @@
 -- This script will load a teapot model and demonstrate picking it with a ray
+killProcesses()  -- stops all running lua coroutine processes
 
 backlog_post("---> START SCRIPT: pick.lua")
 
@@ -9,7 +10,7 @@ model_entity = LoadModel("../models/teapot.wiscene")
 runProcess(function()
 	local t = 0
 	while true do
-		t = t + 0.05
+		t = t + 0.02
 		
 		-- Create a Ray by specifying origin and direction (and also animate the ray origin along sine wave):
 		local ray = Ray(Vector(math.sin(t) * 4,1,-10), Vector(0,0,1)) 

scripts/rotate_model.lua

@@ -1,4 +1,5 @@
 -- This script will load a teapot model with lights and rotate the whole model
+killProcesses()  -- stops all running lua coroutine processes
 
 backlog_post("---> START SCRIPT: rotate_model.lua")
 

scripts/set_material_color.lua

@@ -1,4 +1,5 @@
 -- This script will load a teapot model and animate its base color between red and green
+killProcesses()  -- stops all running lua coroutine processes
 
 backlog_post("---> START SCRIPT: set_material_color.lua")
 

scripts/set_material_emissive.lua

@@ -1,4 +1,5 @@
 -- This script will load a teapot model and animate its emissive color and intensity
+killProcesses()  -- stops all running lua coroutine processes
 
 backlog_post("---> START SCRIPT: set_material_color.lua")