objects/oGiantSpider/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.

oGiantSpider's step event, 130 lines of GML.

if ((x > view_xview[0]-32 and x < view_xview[0] + view_wview[0] and        y > view_yview[0]-32 and y < view_yview[0] + view_hview[0])){moveTo(xVel,yVel);yVel += myGrav;if (yVel > yVelLimit) yVel = yVelLimit;if (whipped > 0) whipped -= 1;if (collision_point(x+16, y+24, oSolid, 0, 0)){    hp = 0;}if (hp < 1){    repeat(rand(1,3))    {        n = rand(1,3);        switch (n)        {            case 1: { gem = instance_create(x+16, y+24, oEmeraldBig); break; }            case 2: { gem = instance_create(x+16, y+24, oSapphireBig); break; }            case 3: { gem = instance_create(x+16, y+24, oRubyBig); break; }        }        gem.xVel = rand(0,3) - rand(0,3);        gem.yVel = -2;    }    obj = instance_create(x+16, y+24, oPaste);    obj.cost = 0;    obj.forSale = false;    scrCreateBlood(x+16, y+24, 4);    if (countsAsKill)    {        if (isRealLevel()) global.enemyKills[3] += 1;        global.giantspiders += 1;        global.kills += 1;    }    instance_destroy();}if (isCollisionRight(1)){    xVel = 1;}if (isCollisionLeft(1)){    xVel = -1;}if (isCollisionTop(1) and isCollisionBottom(1) and status != CRAWL){    status = CRAWL;    if (oCharacter.x < x+16)        xVel = -1;    else        xVel = 1;}dist = distance_to_object(oCharacter)if (squirtTimer > 0) squirtTimer -= 1;if (status == IDLE){    if (sprite_index != sGiantSpiderFlip) sprite_index = sGiantSpider;    alarm[0] = rand(5,20);    if (squirtTimer == 0) status = SQUIRT;    else status = RECOVER;}else if (status == CRAWL){    sprite_index = sGiantSpiderCrawl;    if (not isCollisionTop(1) or not isCollisionBottom(1)) status = IDLE;    else if (isCollisionRight(1)) xVel = -1;    else if (isCollisionLeft(1)) xVel = 1;}else if (status == SQUIRT){    sprite_index = sGiantSpiderSquirt;    if (image_index >= 5 and squirtTimer == 0)    {        instance_create(x+16, y+16, oWebBall);        squirtTimer = rand(100,1000);    }}else if (status == RECOVER){    if (isCollisionBottom(1)) xVel = 0;}else if (status == BOUNCE and dist < 120){    sprite_index = sGiantSpiderJump;    if (isCollisionBottom(1))    {        sprite_index = sGiantSpider;        yVel = -1 * rand(3,6);        if (oCharacter.x < x+16)        {            xVel = -2.5;        }        else        {            xVel = 2.5;        }        playSound(global.sndSpiderJump);                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;}