objects/oDetritus/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.

oDetritus's step event, 40 lines of GML.

if ((x < view_xview[0]-4 or x > view_xview[0]+view_wview[0]+4 or        y < view_yview[0]-4 or y > view_yview[0]+view_hview[0]+4)){    instance_destroy();}if (life > 0) life -= 1;else instance_destroy();moveTo(xVel, yVel);if (collision_point(x, y-4, oLava, 0, 0)){    instance_destroy();}if (bounce){    if (yVel < 6)    {        yVel += grav;    }        if (isCollisionTop(1) and yVel < 0)    {        yVel = -yVel * 0.8;    }        if (isCollisionLeft(1) or isCollisionRight(1))    {        xVel = -xVel * 0.5;    }        if (isCollisionBottom(1))    {        // bounce        if (yVel > 1) yVel = -yVel * 0.5;        else yVel = 0;    }}