Viewing Program

Program Data

Program thumbnail for "{props.program.title}"

Title	Zombies Simulation
ID	1054874414
Created	13 years ago, 1352747226308
Updated	13 years ago, 1350000324309
Code	/* 2012-10-11 - Added createHuman() function. Refactored populateHumans(). Added ability to add new humans by clicking. 2012-10-11 - Sent humans to Khan Academy to learn about magnets. :) Updated evade algorithm. / translate(200,200); textAlign(CENTER,CENTER); textSize(20); noStroke(); //Constants var SIZE=10, ENERGY=320, ZOMBIES = 30, ZOMBIE_COLOR = color(0, 102, 0), ZOMBIE_SPEED = 1, HUMANS = 10, HUMAN_COLOR = color(255, 153, 204), HUMAN_SPEED = 2; var msg = "Click To Start.", bDone = true, z, //Zombies t, //Turning h; //Humans var createHuman = function(h,x,y){ h.push({ x:x, y:y, dx:0, dy:0, e:ENERGY }); }; var populateHumans = function(){ var a = []; for (var i=0;i<HUMANS;i++){ createHuman(a, random(-width/2,width/2), random(-height/2,height/2)); } return a; }; var populateZombies = function(){ var a = []; for (var i=0;i<ZOMBIES;i++){ a.push({x:random(-width/2,width/2), y:random(-height/2,height/2), dx:0, dy:0, e:ENERGY }); } return a; }; var mouseClicked = function(){ if(bDone){ t = []; h = populateHumans(); z = populateZombies(); bDone = false; } else{ createHuman(h,mouseX-200,mouseY-200); } }; var closest = function (t,x,y){ var min_dist = Infinity, min_index; for (var i=0;i<t.length;i++){ if(dist(x,y,t[i].x,t[i].y)<min_dist){ min_dist = dist(x,y,t[i].x,t[i].y); min_index = i; } } return min_index; }; var attack = function(){ var c,i,d; for (i=z.length-1;i>=0;i--){ if(z[i].e<0){ z.splice(i,1); } else{ c = closest(h,z[i].x,z[i].y); d = dist(h[c].x,h[c].y,z[i].x,z[i].y); z[i].dx=(h[c].x-z[i].x)/d; z[i].dy=(h[c].y-z[i].y)/d; if(abs(z[i].x)>width/2){ z[i].dx=-1; } if(abs(z[i].y)>height/2){ z[i].dy=-1; } z[i].x=constrain(z[i].x+z[i].dxZOMBIE_SPEED, -width/2,width/2); z[i].y=constrain(z[i].y+z[i].dyZOMBIE_SPEED, -height/2,height/2); z[i].e--; } } }; var evade = function(){ var c,i,d,dx,dy; for (i=h.length-1;i>=0;i--){ c = closest(z,h[i].x,h[i].y); d = dist(z[c].x,z[c].y,h[i].x,h[i].y); if (d < SIZE){ z[c].e += h[i].e; t.push(h[i]); h.splice(i,1); } else{ dx = (h[i].x-z[c].x)/pow(d,3) + (h[i].x+200)/pow(abs(h[i].x+200),3) + (h[i].x-200)/pow(abs(h[i].x-200),3); dy = (h[i].y-z[c].y)/pow(d,3) + (h[i].y+200)/pow(abs(h[i].y+200),3) + (h[i].y-200)/pow(abs(h[i].y-200),3); h[i].dx = dx/mag(dx,dy,0); h[i].dy = dy/mag(dx,dy,0); h[i].x+=h[i].dxHUMAN_SPEED; h[i].y+=h[i].dy*HUMAN_SPEED; } } }; var turn = function(){ var i; for(i=t.length-1;i>=0;i--){ if(t[i].e<0){ t[i].e=ENERGY; z.push(t[i]); t.splice(i,1); } else{ t[i].e--; } } }; var drawArray = function(a,c){ fill(c); for (var i=0;i<a.length;i++){ ellipse(a[i].x,a[i].y,SIZE,SIZE); } }; var draw = function() { if(bDone){ background(255, 0, 0); fill(255); text(msg,0,0); } else{ background(255); attack(); if (!z.length){ msg = "Humans live on! Click to restart"; bDone = true; return; } evade(); if(!h.length){ msg = "Tragic! Click to try again."; bDone=true; return; } turn(); drawArray(t,lerpColor(ZOMBIE_COLOR,HUMAN_COLOR,0.5)); drawArray(z,ZOMBIE_COLOR); drawArray(h,HUMAN_COLOR); } };
Folds
Fork	false
Key	ag5zfmtoYW4tYWNhZGVteXIUCxIKU2NyYXRjaHBhZBiutoD3Aww
Votes	190
Spin-Offs	63
Type	PJS
Width	400
Height	400
User Flagged	false
Origin Scratchpad	null
Hidden From Hotlist	false
Restricted Posting	false
By Child	false
Author Nick	Chris Hohmann
Author Name	Chris.Hohmann
Author ID	kaid_145175689414139052354081
Author Profile Access	COACH

Archive Data

Added	10 months ago, 1739279630752
Updated	10 months ago, 1739279630752
Source Deleted	unknown