objects/oCheckBox/mouse_left_press.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.

oCheckBox's mouse left press event, 12 lines of GML.

if (not on){    on = true;    sprite_index = sBoxChecked;    global.fullscreen = true;}else{    on = false;    sprite_index = sBox;    global.fullscreen = false;}