Routines
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D1BD: Script Routine: (3F) Vat action
Slide the vat one character left when the left side is clear.
Input
IX Address of complex state data for an entity
ScriptRoutine_VatDecXIfClearLeft D1BD CALL Test_EntityOnLeft Call Test_EntityOnLeft to test whether a solid entity sits on the left.
D1C0 JR C,ScriptRoutine_VatDecXIfClearLeft_DecX Is the space on the left clear (carry set)? If so, jump to ScriptRoutine_VatDecXIfClearLeft_DecX to shift left.
D1C2 CP $32 Is A less than 32? If not, jump to ScriptRoutine_VatDecY.
D1C4 JR NC,ScriptRoutine_VatDecY
Shift the vat one character left when the left side is clear (or close).
ScriptRoutine_VatDecXIfClearLeft_DecX D1C6 DEC (IX+$07) Move this entity one character left.
D1C9 DEC (IX+$08)
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