The Trap Door: Routine at C63B

C63B: Update Stove

Used by the routine at Update_Entity_Slot. When the collided entity's type is 14 and the current entity's type is 09. Clears SlimyLoose, BoilEmUp and BoilEmUpLatch; raises StoveUpdated; advances StoveTick (setting StoveReady on the fourth tick); and repoints the cauldron at idle layout GraphicLayout_Cauldron.
Clear SlimyLoose / BoilEmUp / BoilEmUpLatch; raise StoveUpdated.
Update_Stove	C63B	PUSH HL	Stash HL on the stack.
	C63C	LD HL,$72B6	Point HL at the task-three flags (TaskThreeFlags).
	C63F	RES 2,(HL)	Clear SlimyLoose (bit 02 of TaskThreeFlags. set by B401 / C6FC tested by D907).
	C641	RES 4,(HL)	Clear BoilEmUp (bit 04 of TaskThreeFlags. set by ScriptRoutine_TaskThreeBerkRightWindow_SetFlagsAndLayout. tested by D927).
	C643	RES 5,(HL)	Clear BoilEmUpLatch (bit 05 of TaskThreeFlags. set by ScriptRoutine_TaskThreeBerkRightWindow_SetFlagsAndLayout. also cleared at C39A).
	C645	SET 7,(HL)	Set StoveUpdated (bit 07 of TaskThreeFlags. tested by ScriptRoutine_TaskThreeBerkRightWindow_SetFlagsAndLayout before it sets BoilEmUp / BoilEmUpLatch).
Count another stove tick (StoveTick); has it reached 04?.
	C647	LD A,($72BE)	Load the stove tick (StoveTick) into A.
	C64A	INC A	Advance the stove tick by one.
	C64B	LD ($72BE),A	Store the stove tick (StoveTick).
	C64E	CP $04	Has the stove tick reached 04? If not, skip to Update_Stove_IdleLayout.
	C650	JR NZ,Update_Stove_IdleLayout
	C652	SET 6,(HL)	Set StoveReady (bit 06 of TaskThreeFlags. tested by D915 / D91B).
Point the cauldron at its idle layout and return.
Update_Stove_IdleLayout	C654	LD HL,$9F9D	Point HL at the cauldron layout (GraphicLayout_Cauldron).
	C657	LD ($906D),HL	Write that layout into the graphic-layout field of StateData_Complex_27 (906D).
	C65A	POP HL	Restore HL from the stack.
	C65B	RET	Return.