Routines
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B6E0: Handler: Scenic Events
Handles checking if a scenic event should occur ... and also, handles jumping to the correct related scenic event routine to action it.
Handler_ScenicEvents B6E0 LD A,($AEF8) A=*Count_ScenicEvents.
B6E3 AND A Return if *Count_ScenicEvents is zero.
B6E4 RET Z
B6E5 LD B,A B=A.
B6E6 LD HL,($AEEC) HL=*Pointer_Spare.
B6E9 JR ScenicEvents_Process Jump to ScenicEvents_Process.
Handler_ScenicEvents_Loop B6EB INC HL Increment HL by one.
ScenicEvents_Process B6EC LD A,(HL) Load the scenic event item ID into A.
B6ED CALL ValidateItemPresent Call ValidateItemPresent.
B6F0 JR NZ,ScenicEvents_Next Jump to ScenicEvents_Next if the scenic event item is neither here nor carried.
An event was found to be processed!
First though, stash away the current pointer and index in the search, so this can be resumed later.
B6F2 LD ($AF45),HL Write HL to *TempStore_TablePointer.
B6F5 LD ($AF47),BC Write BC to *TempStore_TableIndex.
Calculate the event index and get the event handler.
B6F9 LD A,($AEF8) E=*Count_ScenicEvents-B.
B6FC SUB B
B6FD LD E,A
B6FE LD IX,($AEE8) Load IX with *Pointer_JumpTable_ScenicEvents which contains a pointer to the scenic event rountines jump table.
B702 CALL GetTableEntry Call GetTableEntry.
B705 LD DE,$B70A Push ScenicEvents_PostProcessing onto the stack (as the return address).
B708 PUSH DE
B709 JP (HL) Jump to the event handler held by HL.
This is the return point after the handler has finished executing.
ScenicEvents_PostProcessing B70A LD HL,($AF45) Restore *TempStore_TablePointer to HL.
B70D LD BC,($AF47) Restore *TempStore_TableIndex to BC.
ScenicEvents_Next B711 DJNZ Handler_ScenicEvents_Loop Decrease the event counter by one and loop back to Handler_ScenicEvents_Loop until all events have been processed.
B713 RET Return.
View the equivalent code in;
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