objects/oBall/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.

oBall's step event, 40 lines of GML.

// ==== action 0: lib 1 id 604: action_inherited() ====// ==== action 1: lib 1 id 603: code ====if (distance_to_object(oPlayer1) >= 24){    if (abs(oPlayer1.x - x) >= 24 or not colBot)    {        if (abs(oPlayer1.x-x) < 1)        {            x = oPlayer1.x;            xVel = 0;        }                if (oPlayer1.x > x)        {            if (oPlayer1.xVel > 0 and y >= oPlayer1.y) xVel = oPlayer1.xVel;            else if (xVel < 0) xVel *= -0.5;            else if (xVel == 0) xVel = 2;        }        else if (oPlayer1.x < x)        {            if (oPlayer1.xVel < 0 and y >= oPlayer1.y) xVel = oPlayer1.xVel;            else if (xVel > 0) xVel *= -0.5;            else if (xVel == 0) xVel = -2;        }    }    else    {        xVel *= 0.5;        if (abs(xVel) < 0.5) xVel = 0;    }        if (abs(oPlayer1.y - y) >= 24)    {        if (oPlayer1.y < y) yVel = 0;    }}else if (colBot){    xVel = 0;}