objects/oZombie/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.

oZombie's step event, 118 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 = -999;if (hp < 1){    scrCreateBlood(x+8, y+8, 1);    repeat(3)    {        instance_create(other.x+8, other.y+8, oBone);    }    skull = instance_create(other.x+8, other.y+8, oSkull);    skull.yVel = -rand(1,3);    skull.xVel = rand(0,3)-rand(0,3);    if (countsAsKill)    {        if (isRealLevel()) global.enemyKills[6] += 1;        global.zombies += 1;        global.kills += 1;    }    instance_destroy();}if (isCollisionRight(1)){    xVel = -1;}if (isCollisionLeft(1)){    xVel = 1;}colBot = false;if (isCollisionBottom(1)) colBot = true;dist = distance_to_object(oPlayer1)if (status == IDLE){    xVel = 0;    if (counter > 0) counter -= 1;    else if (dist < 64) status = BOUNCE;    if (dist < 48) status = BOUNCE;    if (oPlayer1.swimming) status = IDLE;    if (status == BOUNCE) playSound(global.sndZombie);}else if (status == RECOVER){    if (colBot)    {        status = IDLE;        xVel = 0;        yVel = 0;        counter = rand(40,100);    }}else if (status == BOUNCE){    if (colBot)    {        if (rand(1,4) == 1)        {            yVel = -1 * rand(2,4);            if (oCharacter.x < x)            {                facing = LEFT;                xVel = -3;            }            else            {                facing = RIGHT;                xVel = 3;            }        }        else        {            yVel = -1 * rand(1,2);            if (oCharacter.x < x)            {                facing = LEFT;                xVel = -1;            }            else            {                facing = RIGHT;                xVel = 1;            }        }    }    else    {        status = RECOVER;    }}else if (status != DROWNED){    status = IDLE;    xVel = 0;}if (isCollisionTop(1))    yVel = 1;//if (isCollisionSolid())//  y -= 2;if (not colBot) sprite_index = sZombieJumpL;else sprite_index = sZombieLeft;}