objects/oPageUp/keypress_up.gml

From spelunky.gmk, Spelunky Classic 1.1's source, © 2008, 2009 Derek Yu and Mossmouth, LLC, shown whole under the Spelunky User License v1.1b. Extracted by spelunky.ai's tools, an unofficial fan project, one file per script or event; the // ==== lines are the extractor's, naming each action of the event. Some scripts are others' work that Derek Yu credits in the source's readme.txt: Martin Piecyk's platform engine, ChevyRay's view scaling scripts and tsg1zzn's Super Sound System.

oPageUp's keypress up event, 4 lines of GML.

oLoadLevel.page -= 1;with oMenuSel { sprite_index = sMenuSelOff; }instance_activate_object(oPageDown);if (oLoadLevel.page <= 1) instance_deactivate_object(oPageUp);