objects/oCeilingTrap/create.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.
oCeilingTrap's create event, 19 lines of GML.
// ==== action 0: lib 1 id 604: action_inherited() ====// ==== action 1: lib 1 id 603: code ====makeActive();setCollisionBounds(0, 0, 16, 16);invincible = false;viscidTop = 1;image_speed = 0.4;xVel = 0;yVel = 0;myGrav = 1;counter = 3;status = 0;IDLE = 0;DROP = 1;WAIT = 2;RETURN = 3;