objects/oLevelEditor/keypress_2.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.
oLevelEditor's keypress 2 event, 11 lines of GML.
// Monstersif (status == 1){ dropSelect = 1; if (global.tunnel1 == 0 and global.tunnel2 > 0) dropMax = 14; else if (global.tunnel1 > 0 and global.tunnel2 == 0) dropMax = 19; else if (global.tunnel1 == 0 and global.tunnel2 == 0) dropMax = 21; else dropMax = 6; dropVal = 0; oCursObj.sprite_index = sBatLeft;}