Through the Trap Door: Routine at 48388

48388: Decrease remaining time for current power and if zero, exit calling routine and run script data for removal of power

Used by the routines at 35689, 36542 and 48487.
48388	LD DE,(34224)	Load remaining power time into DE
48392	LD A,E	Increase E (number of game-cycles power has been in use in current block)...
48393	INC A	...
48394	LD E,A	...
48395	CP 15	If 16 game-cycles of power use have not yet elapsed...
48397	JR NZ,48402	...then skip ahead to 48402
48399	LD E,0	Reset number of game-cycles power has been in use to zero...
48401	DEC D	...and decrease remaining number of 16-game-cycles
48402	LD (34224),DE	Store updated remaining power time...
48406	RET NZ	...and return if this is not zero
48407	POP BC	Remove top value from stack (i.e. return address to routine that called this routine)
48408	CALL 48417	Remove Berk's current power and reset sweet / mushroom / edible eyes / sausage to its original position
48411	LD HL,35275	Point HL at script data for Berk's power expiring...
48414	JP 48098	...and execute