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Title	Isometric 3D Terrain Generator
ID	4809439308152832
Created	11 years ago, 1401360097480
Updated	10 years ago, 1432321363042
Code	/** * For a version of this using a Minecraft World generator, look * at this program: * https://www.khanacademy.org/cs/minecraft-pockets-terrain-generator/5958501097013248 * * This is a "3D" noise rendering program I made out of bordem. * I should note it's not actually 3D, it simply draws voxels * (squares) in a diagonal line across the canvas. Basically, it * is only isometric 3D, not an actual 3D system. * * The lighting uses a simple method: count all the blocks above * a specific block and use that as the darkness of that block. * It may not be advanced or even accurate at times, but it works * well enough to make good lighting effects. * * Every frame, the data and light arrays are cleared, and the * data for the new frame is used instead, so there is very * limited use for 3D functions in this program. * * Rotation works in two ways: change the direction the sections * render, and change the order of the x,y,z coordinates. / /* * Change the seed to see a previous world * Leave it at 0 to see random worlds / var seed = 0; var genType = 3; // 0 = floating rock, 1 = cliffs, 2 = normal noise var res = 2; var wid = 128; var hei = 128; var len = 80; var rot = 7; var debugMode = false; //Turn this on/off by pressing the 'D' key var labels = true; //Turn this on/off by pressing the 'L' key var help = false; //Turn this on/off by pressing the 'H' key //Returns approximate epoch time to use as a seed var getEpoch = function(){ var d = 16220+(day()+month()+year()-2049); var y = year()-1900; return (d86400 + floor((y-69)/4)86400 - floor((y-1)/100)86400 + floor((y+299)/400)86400)1000 + millis() - 930122500-932897; }; seed = seed===0?getEpoch():seed; randomSeed(seed); var t = random(0,pow(2,10)); noiseDetail(10,0.5); // stroke , fill var blocks=[0xff362414,0xff2e140a, //Dirt 0x2f6a8de6,0x2f3a76e6, //Water 0xff549e41,0xff1d4d13, //Grass 0xff474747,0xff8a8585, //Stone 0xffcfbb88,0xff8f8960]; //Sand var data = []; var light = []; var direc = ["South","East","North","West"]; var generators = [ function(x,y,z){ var plateau_falloff,center_falloff,density,xf=x/100,yf=y/100,zf=z/100; if(yf <= hei/50){ plateau_falloff = 1; } else if(hei/50 < yf && yf < 1){ plateau_falloff = 1.1-(yf-hei/50)10; }else{ plateau_falloff = 0; } center_falloff = 0.1/(pow((xf-0.3)2.5, 2)+pow((yf-0.35)hei/50/0.5, 2)+pow((zf-0.4)2, 2)); density = (noise(xf+t, yf0.5+t, zf+t)center_falloffplateau_falloff); density = pow(noise(((xf+1)3)-0.5, (yf+1)8, (zf+1)3)+0.4, 1.8); if(density>0.1){ return 0; }else if(y<6&&density<0.1&&density>0.095){ return 4; } }, function(x,y,z){ var plateau_falloff,center_falloff,density,xf=x/100,yf=y/100,zf=z/100; if(yf <= hei/50){ plateau_falloff = 1; }else if(hei/50 < yf && yf < 1){ plateau_falloff = 1.1-(yf-hei/50)10; }else{ plateau_falloff = 0; } center_falloff = pow((xf2)-0.6,2)+pow(yf/2,2)+pow(len0.01-zf-0.01,2); density = noise(xf+t, yf(hei/50)+t, zf+t)center_falloffplateau_falloff; if(density>0.25){ return 0; }else if(y<6&&density<0.25&&density>0.245){ return 4; } }, function(x,y,z){ var plateau_falloff,center_falloff,density,xf=x/100,yf=y/100,zf=z/100; density = noise(xf+t,yf+t,zf+t); if(density>0.5){ return 0; }else if(y<6&&density<0.5&&density>0.495){ return 4; } }, function(x,y,z){ var plateau_falloff,center_falloff,density,xf=x/100,yf=y/hei/2,zf=z/100; density = noise(xf+t,yf+t,zf+t); density = (-yfyfyf(yf(yf6 - 15) + 10) + 1.4)0.8; if(density > 0.53){ return 3; }else if(density > 0.5){ return 0; } }]; var createTerrain = function(){ for(var x = 0; x < wid; x++){ data[x]=[]; for(var y = 0; y < hei; y++){ switch((ceil(rot/2))%4){ case 0: data[x][hei-1-y]=generators[genType](x,y,frameCount); break; case 1: data[x][hei-1-y]=generators[genType](frameCount,y,-x+wid); break; case 2: data[x][hei-1-y]=generators[genType](-x+wid,y,-frameCount+len); break; case 3: data[x][hei-1-y]=generators[genType](-frameCount+len,y,x); break; } } } }; var process = function(){ for(var x = 0; x < wid; x++){ var top = hei; var air = 0; var shade = 0; var sand = false; light[x]=[]; for(var y = 0; y < hei; y++){ var b = data[x][y]; if(b===undefined&&top!==hei){ air++; } if(b===0&&data[x][y-1]===undefined){ if(air>10){ data[x][y]=2; air=0; } if(y<top){ top=y; } } if(hei-1-y<4&&b===undefined){ data[x][y]=1; } if(hei-1-y<28&&b===undefined&&genType===3){ data[x][y]=1; } if(b===4&&genType!==3){ sand=true; } if(sand&&genType!==3){ data[x][y]=4; } if(b!==undefined){ shade++; } light[x][y]=shade; } data[x][top]=2; } }; var drawSection = function(){ var type,c1,c2; for(var x = 0; x < wid; x++){ for(var y = 0; y < hei; y++){ type = data[x][y]; if(type===undefined){ continue; } c1 = lerpColor(blocks[type2],0xff000000,light[x][y]/hei); stroke(c1); c2 = lerpColor(blocks[type2+1],0xff000000,light[x][y]/hei); fill(c2); if(rot%2===1){ rect(xres+frameCount+25,yres+frameCount+25,res,res); }else{ rect(xres-frameCount+120,yres+frameCount+25,res,res); } } } }; var restart = function(){ background(184, 238, 255); frameCount=0; loop(); }; var drawText = function(){ textSize(12); noStroke(); fill(184, 238, 255); rect(0,0,400,25); rect(0,365,399,50); fill(0); var direction = direc[ceil(rot/2)%4]; if(debugMode){ textAlign(LEFT, BOTTOM); text("rot: "+rot+" z: "+frameCount+" seed: "+seed+" t: "+t,10,15); }else{ textAlign(CENTER,BOTTOM); text("Facing: "+direction,200,20); text("Press the 'H' key to hide/show the help menu",200,395); } if(help){ noLoop(); textAlign(LEFT, BOTTOM); background(184, 238, 255); fill(0, 0, 0); textSize(14); text("Keys:",60,75); textSize(12); text("Enter - Restart the generator",75,95); text("Left Arrow - Rotate the map counter-clockwise",75,110); text("Right Arrow - Rotate the map clockwise",75,125); text("Up Arrow - Switch to next generator type",75,140); text("Down Arrow - Switch to previous generator type",75,155); text("D - Turn debug on/off",75,170); text("H - Hide/show the help menu",75,185); text("L - Hide/show labels and text",75,200); text("S - Generate a new world using a new seed",75,215); textSize(14); text("Mouse:",60,240); textSize(12); text("Right Click - Print seed to console",75,260); } }; var mousePressed = function(){ if(mouseButton===39){ if(debugMode){ println("rot: "+rot+"\nz: "+frameCount+"\nseed: "+seed+"\nt: "+t); }else{ println("Seed: " + seed); } } }; var keyPressed = function(){ if(keyCode===10){ //Enter restart(); }else if(keyCode===37){ rot = (rot+1)%8; //Left restart(); }else if(keyCode===38){ //Up genType=(genType+1)%generators.length; restart(); }else if(keyCode===39){ //Right rot = (rot-1)%8; rot = rot<=-1?7:rot; restart(); }else if(keyCode===40){ //Down genType = (genType-1)%generators.length; genType = genType<=-1?generators.length-1:genType; restart(); }else if(keyCode===68){ //D debugMode=!debugMode; restart(); }else if(keyCode===72){ //H help = !help; if(!help){restart();} else{drawText();} }else if(keyCode===76){ //L labels=!labels; }else if(keyCode===83){ //S seed = getEpoch(); randomSeed(seed); t = random(0,pow(2,10)); restart(); }else if(debugMode){ println("key: " + keyCode); } }; background(184, 238, 255); var draw = function() { if(frameCount>=len){ noLoop(); } if(frameCount%3===0){ noStroke(); fill(214, 226, 230, 1); rect(0,0,400,400); //Fog layer } createTerrain(); process(); drawSection(); if(labels){ drawText(); } };
Folds
Fork	false
Key	ag5zfmtoYW4tYWNhZGVteXIXCxIKU2NyYXRjaHBhZBiAgKDMjcXFCAw
Votes	407
Spin-Offs	14
Type	PJS
Width	400
Height	400
User Flagged	false
Origin Scratchpad	null
Hidden From Hotlist	false
Restricted Posting	false
By Child	false
Author Nick	jocopa3
Author Name	Jocopa3
Author ID	kaid_618814140784120343334840
Author Profile Access	COACH

Archive Data

Added	6 months ago, 1739370218808
Updated	4 months ago, 1744828448849
Source Deleted	unknown