objects/oSpider/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.

oSpider's step event, 94 lines of GML.

// ==== action 0: lib 1 id 604: action_inherited() ====// ==== action 1: lib 1 id 603: code ====if ((x > view_xview[0]-20 and x < view_xview[0] + view_wview[0]+4 and        y > view_yview[0]-20 and y < view_yview[0] + view_hview[0]+4)){moveTo(xVel,yVel);yVel += myGrav;if (yVel > yVelLimit) yVel = yVelLimit;if (collision_point(x+8, y+8, oSolid, 0, 0)){    hp = 0;}if (hp < 1){    scrCreateBlood(x+8, y+8, 3);    if (countsAsKill)    {        if (isRealLevel()) global.enemyKills[2] += 1;        global.spiders += 1;        global.kills += 1;    }    instance_destroy();}if (isCollisionRight(1)){    xVel = 1;}if (isCollisionLeft(1)){    xVel = -1;}dist = distance_to_object(oCharacter)if (status == IDLE){    alarm[0] = rand(5,20);    status = RECOVER;}else if (status == RECOVER){    if (isCollisionBottom(1)) xVel = 0;}else if (status == BOUNCE and dist < 90){    if (isCollisionBottom(1))    {        yVel = -1 * rand(2,5);        if (oCharacter.x < x+8)        {            xVel = -2.5;        }        else        {            xVel = 2.5;        }                if (rand(1,4) == 1) { status = IDLE; xVel = 0; yVel = 0; }    }}else if (status != DROWNED){    status = IDLE;    //xVel = 0;}if (isCollisionTop(1))    yVel = 1;/*if (isCollisionLeft(1) or isCollisionRight(1)){    xVel = -xVel;}*///if (isCollisionSolid())//  y -= 2;}// ==== action 2: lib 1 id 603: code ====if (collision_point(x+8, y+8, oWater, 0, 0) and status != DROWNED){    status = DROWNED;    sprite_index = sSpiderDrowning;    alarm[1] = 30;    xVel = 0;    yVel = 0.2;    instance_create(x+8, y, oSplash);    playSound(global.sndSplash);}