objects/oBones/step.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.

oBones's step event, 10 lines of GML.

if (not collision_point(x+8, y+16, oSolid, 0, 0)){    y += yVel;    yVel += yAcc;}if (collision_point(x+8, y+15, oSolid, 0, 0)){    y -= 1;}