Super Mario Bros. X Forums

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local hoprng = 1
local animationtimer = 0

--Register events
function sampleNPC.onInitAPI()
	npcManager.registerEvent(npcID, sampleNPC, "onTickNPC")
	--npcManager.registerEvent(npcID, sampleNPC, "onTickEndNPC")
	--npcManager.registerEvent(npcID, sampleNPC, "onDrawNPC")
	--registerEvent(sampleNPC, "onNPCKill")
end

function sampleNPC.onTickNPC(v)
	--Don't act during time freeze
	if Defines.levelFreeze then return end
	
	local data = v.data
	
	--If despawned
	if v:mem(0x12A, FIELD_WORD) <= 0 then
		v.data.state = 0
		data.initialized = false
		return
	end

	--Initialize
	if not data.initialized then
		--Initialize necessary data.
		data.initialized = true
	end

	--Depending on the NPC, these checks must be handled differently
	if v:mem(0x12C, FIELD_WORD) > 0    --Grabbed
	or v:mem(0x136, FIELD_BOOL)        --Thrown
	or v:mem(0x138, FIELD_WORD) > 0    --Contained within
	then
		--Handling
	hoprng = hoprng + 1
	if hoprng == 3 then
		hoprng = 1
	end
	
	local ST_Grounded = 0
	local ST_Air = 1
	
	v.data.state = 1
	
	if data.state == ST_Air then
		if v.collidesBlockBottom then
			v.speedX = 0
			v.animationFrame = 0
			data.state = ST_Grounded
		end
	elseif data.state == ST_Grounded then
		animationtimer = animationtimer + 1
		if animationtimer == 1000 then
			v.animationFrame = 1
			if hoprng == 1 then
				v.speedX = 2 * v.direction
				v.speedY = -6
				animationtimer = 0
				data.state = ST_Air
			end
			elseif hoprng == 2 then
				v.speedX = 6 * v.direction
				v.speedY = -2
				animationtimer = 0
				data.state = ST_Air
			end
		end
	end