Viewing Program

Program Data

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

Title	minecraft? more like i give up, khan academy's programming environment in general is very inefficient and not suitable for rendering lots of 3D polygons in realtime, not to mention updating the array of thousands of blocks. i don't think a full-fledged minecraft is possible to recreate on here-that's right, you heard it here first, folks: you can't make minecraft authentically on khan academy.
ID	5450461540532224
Created	5 years ago, 1585292543739
Updated	5 years ago, 1585292765196
Code	/** * Jentacular Gent * minecraft? more like i give up, khan academy's programming environment in general is very inefficient and not suitable for rendering lots of 3D polygons in realtime, not to mention updating the array of thousands of blocks. i don't think a full-fledged minecraft is possible to recreate on here-that's right, you heard it here first, folks: you can't make minecraft authentically on khan academy. * * ON lazyPick 0: * WASD to move * Spacebar to jump * Left click to break block * Middle click and drag to look around * Right click to place block * * ON lazyPick 1: * WASD to move * Spacebar to jump * Aaaaaaaaaand nothing else because it would literally crash your browser before you could do anything about it :\ */ var lazyPick = 1; // 0 is laggy version, 1 is laggy version but it's less worse if(lazyPick === 0) { // { // { var Vnew = function(x, y, z) { // New vector if(y === undefined) { return { x: x, y: x, z: x, }; } if(z === undefined) { return { x: x, y: y, }; } return { x: x, y: y, z: z, }; }; var Vadd = function(v, v2) { // Add vectors return { x: v.x + v2.x, y: v.y + v2.y, z: v.z + v2.z, }; }; var Vsub = function(v, v2) { // Subtract vectors return { x: v.x - v2.x, y: v.y - v2.y, z: v.z - v2.z, }; }; var Vdiv = function(v, v2) { // Divide vectors return { x: v.x / v2.x, y: v.y / v2.y, z: v.z / v2.z, }; }; var Vmult = function(v, v2) { // Multiply vectors return { x: v.x v2.x, y: v.y * v2.y, z: v.z * v2.z, }; }; var Vdot = function(v, v2) { // Dot product if(v.z === undefined) { return v.x * v2.x + v.y * v2.y; } return v.x * v2.x + v.y * v2.y + v.z * v2.z; }; var Vcross = function(v, v2) { // Cross product return { x: v.y * v2.z - v.z * v2.y, y: v.z * v2.x - v.x * v2.z, z: v.x * v2.y - v.y * v2.x }; }; var Vdist = function(v, v2) { if(v.z === undefined) { return abs(sqrt(sq(v.x - v2.x) + sq(v.y - v2.y))); } return abs(sqrt(sq(v.x - v2.x) + sq(v.y - v2.y) + sq(v.z - v2.z))); }; var Vlength = function(v) { return Vdist(v, Vnew(0)); }; var Vnormalize = function(v) { var distance = Vdist(v, Vnew(0, 0, 0)); return Vdiv(v, Vnew(distance, distance, distance)); }; // } Simple vector library // Rotate var yRotate = function(theta, x, y, z) { var rotation = atan2(z, x) + theta; var distance = dist(x, z, 0, 0); return Vnew(cos(rotation) * distance, y, sin(rotation) * distance); }; var xRotate = function(theta, x, y, z) { var rotation = atan2(z, y) + theta; var distance = dist(y, z, 0, 0); return Vnew(x, cos(rotation) * distance, sin(rotation) * distance); }; // Distance without sqrt var sqDist = function() { var a = arguments; if(a.length === 4) { return (a[2]-a[0])(a[2]-a[0]) + (a[3]-a[1])(a[3]-a[1]); } else { return (a[3]-a[0])(a[3]-a[0]) + (a[4]-a[1])(a[4]-a[1]) + (a[5]-a[2])(a[5]-a[2]); } }; // Point in triangle var tpCol = function(xPix, yPix, x, y, x2, y2, x3, y3) { var area = (x3 - x) (y2 - y) - (y3 - y) * (x2 - x); var lambda = (xPix - x2) * (y3 - y2) - (yPix - y2) * (x3 - x2); var lambda2 = (xPix - x3) * (y - y3) - (yPix - y3) * (x - x3); lambda /= area; lambda2 /= area; var lambda3 = 1 - lambda - lambda2; return (lambda > 0 && lambda2 > 0 && lambda3 > 0) \|\| (lambda < 0 && lambda2 < 0 && lambda3 < 0); }; // Cuboid in cuboid var ccCol = function(x, y, z, w, h, d, x2, y2, z2, w2, h2, d2) { return x > x2 - w && y > y2 - h && z > z2 - d && x < x2 + w2 && y < y2 + h2 && z < z2 + d2; }; // Copy var copyObj = function(obj) { var newObj = {}; for(var i in obj) { newObj[i] = obj[i]; } return newObj; }; // Globals var renderDistance = 6; var sprint = 0; var clicked = false; var keys = {}; var keysr = {}; var blockSize = 10; var FOV = 300; var selected = false; var selectedSide = 0; var player = { x: 0, y: 0, z: 0, yaw: 0, pitch: 0, xVel: 0, yVel: 0, zVel: 0, }; var foreHead = blockSize / 2; var fat = blockSize / 4; var clipStart = 0.1; var blockUpdate = true; // Clipping var clipRay = function(o, d) { var r = Vsub(d, o); return Vadd(o, Vmult(r, Vnew((clipStart - o.z) / r.z))); }; var clipTri = function(x1, y1, z1, x2, y2, z2, x3, y3, z3) { var p = Vnew(x1, y1, z1); var p2 = Vnew(x2, y2, z2); var p3 = Vnew(x3, y3, z3); if(z1 <= clipStart) { if(z2 > clipStart && z3 > clipStart) { return [p3, p2, clipRay(p2, p), clipRay(p3, p)]; } else if(z2 <= clipStart) { return [p3, clipRay(p3, p), clipRay(p3, p2)]; } else if(z3 <= clipStart) { return [p2, clipRay(p2, p), clipRay(p2, p3)]; } } if(z2 <= clipStart) { if(z1 > clipStart && z3 > clipStart) { return [p, p3, clipRay(p3, p2), clipRay(p, p2)]; } else if(z3 <= clipStart) { return [p, clipRay(p, p2), clipRay(p, p3)]; } } return [p, p2, clipRay(p2, p3), clipRay(p, p3)]; }; // Triangles var tris = []; var vtris = []; var tri = function(v, v2, v3, n, r, g, b, index) { tris.push({ v: v, v2: v2, v3: v3, pv: v, pv2: v2, pv3: v3, get ax() { return (this.v.x + this.v2.x + this.v3.x) / 3; }, get ay() { return (this.v.y + this.v2.y + this.v3.y) / 3; }, get az() { return (this.v.z + this.v2.z + this.v3.z) / 3; }, normal: n, r: r, g: g, b: b, index: index, }); }; // Blocks var blocks = []; var grid = {}; var Block = function(x, y, z, type) { blocks.push({ x: x * blockSize, y: y * blockSize, z: z * blockSize, type: type, }); }; var nx = random(10000); var ny = random(10000); for(var i = 0; i < 25; i ++) { for(var j = 0; j < 25; j ++) { var y = round(noise(i * 1/10 + nx, j * 1/10 + ny) * 50); Block(i, y, j, "grass"); for(var k = 1; k < 4; k ++) { if(random(10) < 5) { Block(i, k + y, j, "stone"); } else { Block(i, k + y, j, "dirt"); } } } } // Block(1, 1, 3, "grass"); // Block(1, 2, 3, "dirt"); // Block(2, 1, 3, "grass"); // Block(2, 2, 3, "dirt"); // Block(2, 2, 2, "dirt"); var printObj = function(obj) { var blStr = "{"; var indent = ""; for(var i in obj) { if(obj[i].toString() === "[object Object]") { blStr += i + ": " + printObj(obj[i]) + ", "; continue; } blStr += i + ": " + obj[i] + ", "; } blStr += "}"; return blStr; }; var block = function(bl, index) { var b = copyObj(bl); var btl = Vnew(b.x, b.y, b.z + blockSize); var btr = Vnew(b.x + blockSize, b.y, b.z + blockSize); var bbl = Vnew(b.x, b.y + blockSize, b.z + blockSize); var bbr = Vnew(b.x + blockSize, b.y + blockSize, b.z + blockSize); var ftl = Vnew(b.x, b.y, b.z); var ftr = Vnew(b.x + blockSize, b.y, b.z); var fbl = Vnew(b.x, b.y + blockSize, b.z); var fbr = Vnew(b.x + blockSize, b.y + blockSize, b.z); if(b.type === "grass" \|\| b.type === "dirt" \|\| b.type === "stone") { var r = 0; var g = 255; var B = 0; if(b.type === "dirt") { r = 170; g = 100; B = 75; } if(b.type === "stone") { r = 150; g = 150; B = 150; } if(grid[bl.x / blockSize] === undefined \|\| grid[bl.x / blockSize][bl.y / blockSize] === undefined \|\| grid[bl.x / blockSize][bl.y / blockSize][bl.z / blockSize - 1] === undefined) { var n = Vnew(0, 0, -1); tri(ftl, ftr, fbr, n, r, g, B, index); // front tri(ftl, fbl, fbr, n, r, g, B, index); } if(grid[bl.x / blockSize] === undefined \|\| grid[bl.x / blockSize][bl.y / blockSize] === undefined \|\| grid[bl.x / blockSize][bl.y / blockSize][bl.z / blockSize + 1] === undefined) { var n = Vnew(0, 0, 1); tri(btl, btr, bbr, n, r, g, B, index); // back tri(btl, bbl, bbr, n, r, g, B, index); } if(grid[bl.x / blockSize] === undefined \|\| grid[bl.x / blockSize][bl.y / blockSize - 1] === undefined \|\| grid[bl.x / blockSize][bl.y / blockSize - 1][bl.z / blockSize] === undefined) { var n = Vnew(0, -1, 0); tri(btl, btr, ftr, n, r, g, B, index); // top tri(btl, ftl, ftr, n, r, g, B, index); } if(grid[bl.x / blockSize] === undefined \|\| grid[bl.x / blockSize][bl.y / blockSize + 1] === undefined \|\| grid[bl.x / blockSize][bl.y / blockSize + 1][bl.z / blockSize] === undefined) { var n = Vnew(0, 1, 0); tri(bbl, bbr, fbr, n, r, g, B, index); // bottom tri(bbl, fbl, fbr, n, r, g, B, index); } if(grid[bl.x / blockSize - 1] === undefined \|\| grid[bl.x / blockSize - 1][bl.y / blockSize] === undefined \|\| grid[bl.x / blockSize - 1][bl.y / blockSize][bl.z / blockSize] === undefined) { var n = Vnew(-1, 0, 0); tri(btl, bbl, fbl, n, r, g, B, index); // left tri(btl, ftl, fbl, n, r, g, B, index); } if(grid[bl.x / blockSize + 1] === undefined \|\| grid[bl.x / blockSize + 1][bl.y / blockSize] === undefined \|\| grid[bl.x / blockSize + 1][bl.y / blockSize][bl.z / blockSize] === undefined) { var n = Vnew(1, 0, 0); tri(btr, bbr, fbr, n, r, g, B, index); // right tri(btr, ftr, fbr, n, r, g, B, index); } } }; // Keys var keyPressed = function() { keys[keyCode] = true; keys[key.toString().toLowerCase()] = true; }; var keyReleased = function() { keys[keyCode] = false; keys[key.toString().toLowerCase()] = false; keysr[keyCode] = true; keysr[key.toString().toLowerCase()] = true; }; // Mouse var mouseReleased = function() { clicked = true; }; // Draw var col = function(b) { return ccCol(b.x, b.y, b.z, blockSize, blockSize, blockSize, player.x - fat, player.y - foreHead, player.z - fat, fat * 2, blockSize * 2 - foreHead * 0.25, fat * 2); }; var draw = function() { selected = false; background(0, 200, 255); var look = xRotate(player.pitch, 0, 0, 1); look = yRotate(player.yaw, look.x, look.y, look.z); look.z = -look.z; pushMatrix(); translate(width / 2, height / 2); stroke(0); strokeWeight(1); // SETUP BLOCKS if(blockUpdate) { tris = []; grid = {}; for(var i = blocks.length - 1; i >= 0; i --) { var b = blocks[i]; if(grid[b.x / blockSize] === undefined) { grid[b.x / blockSize] = {}; grid[b.x / blockSize][b.y / blockSize] = {}; } else if(grid[b.x / blockSize][b.y / blockSize] === undefined) { grid[b.x / blockSize][b.y / blockSize] = {}; } if(grid[b.x / blockSize][b.y / blockSize][b.z / blockSize] === undefined) { grid[b.x / blockSize][b.y / blockSize][b.z / blockSize] = b.type; } } for(var i = blocks.length - 1; i >= 0; i --) { var b = blocks[i]; block(b, i); } blockUpdate = false; } /COLLISION/ // CONTROLS var spd = 1.5; if(keys[SHIFT]) { sprint = 0; } else if(!keys.w) { sprint = -1; } if(sprint > -1) { spd = 3; } player.xVel = 0; player.zVel = 0; if(keys.w) { player.xVel += cos(-player.yaw + 90) spd; player.zVel += sin(-player.yaw + 90) * spd; } if(keys.s) { player.xVel -= cos(-player.yaw + 90) * spd; player.zVel -= sin(-player.yaw + 90) * spd; } if(keys.a) { player.xVel -= cos(-player.yaw) * spd; player.zVel -= sin(-player.yaw) * spd; } if(keys.d) { player.xVel += cos(-player.yaw) * spd; player.zVel += sin(-player.yaw) * spd; } if(keys[" "] && player.onFloor) { player.yVel = -2.55; } if(mouseIsPressed && mouseButton === 3) { player.yaw += (mouseX - pmouseX); player.pitch = constrain(player.pitch + (mouseY - pmouseY), -89, 89); } player.yVel += 0.25; player.x += player.xVel; for(var i = blocks.length - 1; i >= 0; i --) { var b = blocks[i]; if(!col(b)) { continue; } if(player.xVel < 0) { player.x = b.x + blockSize + fat; player.xVel = 0; } if(player.xVel > 0) { player.x = b.x - fat; player.xVel = 0; } } player.y += player.yVel; player.onFloor = false; for(var i = blocks.length - 1; i >= 0; i --) { var b = blocks[i]; if(!col(b)) { continue; } if(player.yVel < 0) { player.y = b.y + blockSize + foreHead; player.yVel = 0; } if(player.yVel > 0) { player.y = b.y - blockSize * 2 + foreHead * 1.25; player.yVel = 0; player.onFloor = true; } } player.z += player.zVel; for(var i = blocks.length - 1; i >= 0; i --) { var b = blocks[i]; if(!col(b)) { continue; } if(player.zVel < 0) { player.z = b.z + blockSize + fat; player.zVel = 0; } if(player.zVel > 0) { player.z = b.z - fat; player.zVel = 0; } } /COLLISION END/ /RASTERIZER/ // Z-SORT tris = tris.sort(function(a, b) { return (sqDist(a.ax, a.ay, a.az, 0, 0, 0) - sqDist(b.ax, b.ay, b.az, 0, 0, 0)); // return a.az - b.az; }); // MOUSE HOVER OVER BLOCK DETECT vtris = []; for(var i = tris.length - 1; i >= 0; i --) { var t = tris[i]; t.v = copyObj(t.pv); t.v2 = copyObj(t.pv2); t.v3 = copyObj(t.pv3); if(sqDist(t.ax, t.ay, t.az, player.x, player.y, player.z) > renderDistanceblockSizerenderDistanceblockSize) { continue; } if(Vdot(t.normal, look) < -0.75) { continue; } t.v.x -= player.x; t.v.y -= player.y; t.v.z -= player.z; t.v = yRotate(player.yaw, t.v.x, t.v.y, t.v.z); t.v = xRotate(player.pitch, t.v.x, t.v.y, t.v.z); t.v2.x -= player.x; t.v2.y -= player.y; t.v2.z -= player.z; t.v2 = yRotate(player.yaw, t.v2.x, t.v2.y, t.v2.z); t.v2 = xRotate(player.pitch, t.v2.x, t.v2.y, t.v2.z); t.v3.x -= player.x; t.v3.y -= player.y; t.v3.z -= player.z; t.v3 = yRotate(player.yaw, t.v3.x, t.v3.y, t.v3.z); t.v3 = xRotate(player.pitch, t.v3.x, t.v3.y, t.v3.z); if(t.v.z <= clipStart && t.v2.z <= clipStart && t.v3.z <= clipStart) { continue; } vtris.push(copyObj(t)); if(t.v.z <= clipStart \|\| t.v2.z <= clipStart \|\| t.v3.z <= clipStart) { continue; } var d = t.v.z / FOV; var d2 = t.v2.z / FOV; var d3 = t.v3.z / FOV; if(sqDist(t.ax, t.ay, t.az, 0, 0, 0) > 3blockSize3blockSize \|\| !tpCol(0, 0, t.v.x / d, t.v.y / d, t.v2.x / d2, t.v2.y / d2, t.v3.x / d3, t.v3.y / d3)) { continue; } if(!tpCol(0, 0, t.v.x / d, t.v.y / d, t.v2.x / d2, t.v2.y / d2, t.v3.x / d3, t.v3.y / d3)) { continue; } selected = t.index; selectedSide = t.normal; } // DISPLAY TRIANGLES for(var i = 0; i < vtris.length; i ++) { var t = vtris[i]; var z = 0; z += t.v.z + t.v2.z + t.v3.z; z /= 3; t.az = z; var d = t.v.z / FOV; var d2 = t.v2.z / FOV; var d3 = t.v3.z / FOV; var shade = 1; if(t.normal !== 1) { shade = 0; shade += Vdot(t.normal, look); } fill(t.r * shade, t.g * shade, t.b * shade); stroke(t.r * shade, t.g * shade, t.b * shade); strokeWeight(1); if(t.index === selected) { stroke(0); strokeWeight(2); } if(t.v.z > clipStart && t.v2.z > clipStart && t.v3.z > clipStart) { triangle(t.v.x / d, t.v.y / d, t.v2.x / d2, t.v2.y / d2, t.v3.x / d3, t.v3.y / d3); } else { var clipped = clipTri(t.v.x, t.v.y, t.v.z, t.v2.x, t.v2.y, t.v2.z, t.v3.x, t.v3.y, t.v3.z); var d = clipped[0].z / FOV; var d2 = clipped[1].z / FOV; var d3 = clipped[2].z / FOV; if(clipped.length === 3) { triangle(clipped[0].x / d, clipped[0].y / d, clipped[1].x / d2, clipped[1].y / d2, clipped[2].x / d3, clipped[2].y / d3); } else { var d4 = clipped[3].z / FOV; quad(clipped[0].x / d, clipped[0].y / d, clipped[1].x / d2, clipped[1].y / d2, clipped[2].x / d3, clipped[2].y / d3, clipped[3].x / d4, clipped[3].y / d4); } } } /RASTERIZER END/ // INTERACT WITH BLOCKS if(selected !== false) { if(clicked) { if(mouseButton === LEFT) { blocks.splice(selected, 1); blockUpdate = true; } if(mouseButton === RIGHT) { var b = blocks[selected]; blockUpdate = true; if(selectedSide.y === -1) { Block(b.x / blockSize, b.y / blockSize - 1, b.z / blockSize, b.type); } if(selectedSide.y === 1) { Block(b.x / blockSize, b.y / blockSize + 1, b.z / blockSize, b.type); } if(selectedSide.x === -1) { Block(b.x / blockSize - 1, b.y / blockSize, b.z / blockSize, b.type); } if(selectedSide.x === 1) { Block(b.x / blockSize + 1, b.y / blockSize, b.z / blockSize, b.type); } if(selectedSide.z === -1) { Block(b.x / blockSize, b.y / blockSize, b.z / blockSize - 1, b.type); } if(selectedSide.z === 1) { Block(b.x / blockSize, b.y / blockSize, b.z / blockSize + 1, b.type); } } } } popMatrix(); // CROSSBAR stroke(200); strokeWeight(2); line(width / 2 - 10, height / 2, width / 2 + 10, height / 2); line(width / 2, height / 2 - 10, width / 2, height / 2 + 10); // FPS COUNTER fill(0); textAlign(LEFT, TOP); textSize(20); text("FPS: " + round(this.__frameRate), 0, 0); clicked = false; keysr = {}; }; // } } if(lazyPick === 1) { // { // Object and function fixing (from Element118) var delag = function(f) { var str = f.toString(); str = str.replace(/__env__\.KAInfiniteLoopCount\+\+;/g, ''); str = str.replace(/if $__env__\.KAInfiniteLoopCount > 1000$ {[\s]+__env__\.KAInfiniteLoopProtect$\'[^']'$;[^}]+}/g, ''); str = str.replace(/__env__\.PJSOutput\.applyInstance$(__env__\.\S+), '\S+'$/g, 'new $1'); return Object.constructor('return (function(__env__) {return ' + str + ';});')()(this); }; // Loop fixing (from Arrowhead Co.) var resetTimer = function (n) { var setInf = "KAInfiniteLoopSetTimeout"; if(setInf in this) { if(typeof this[setInf] === "function"){ this[setInf](n); } } }; // Speed regulation var ut, fps = (function() { var pm = 0; var m = millis(); return function() { pm = m; m = millis(); ut = map(abs(m - pm), 16+2/3, 33+1/3, 1, 2); }; })(); angleMode = 'degrees'; // { var Vnew = function(x, y, z) { // New vector if(y === undefined) { return { x: x, y: x, z: x, }; } if(z === undefined) { return { x: x, y: y, }; } return { x: x, y: y, z: z, }; }; var Vadd = function(v, v2) { // Add vectors return { x: v.x + v2.x, y: v.y + v2.y, z: v.z + v2.z, }; }; var Vsub = function(v, v2) { // Subtract vectors return { x: v.x - v2.x, y: v.y - v2.y, z: v.z - v2.z, }; }; var Vdiv = function(v, v2) { // Divide vectors return { x: v.x / v2.x, y: v.y / v2.y, z: v.z / v2.z, }; }; var Vmult = function(v, v2) { // Multiply vectors return { x: v.x v2.x, y: v.y * v2.y, z: v.z * v2.z, }; }; var Vdot = function(v, v2) { // Dot product if(v.z === undefined) { return v.x * v2.x + v.y * v2.y; } return v.x * v2.x + v.y * v2.y + v.z * v2.z; }; var Vcross = function(v, v2) { // Cross product return { x: v.y * v2.z - v.z * v2.y, y: v.z * v2.x - v.x * v2.z, z: v.x * v2.y - v.y * v2.x }; }; var Vdist = function(v, v2) { if(v.z === undefined) { return abs(sqrt(sq(v.x - v2.x) + sq(v.y - v2.y))); } return abs(sqrt(sq(v.x - v2.x) + sq(v.y - v2.y) + sq(v.z - v2.z))); }; var Vlength = function(v) { return Vdist(v, Vnew(0)); }; var Vnormalize = function(v) { var distance = Vdist(v, Vnew(0)); return Vdiv(v, Vnew(distance)) \|\| v; }; // } Simple vector library // Radians to Degrees var r2d = 180/PI; var d2r = PI/180; // Rotate var yRotate = function(theta, x, y, z) { var s = Math.sin(theta * d2r); var c = Math.cos(theta * d2r); return Vnew(x * c + z * s, y, z * c - x * s); }; var xRotate = function(theta, x, y, z) { var s = Math.sin(theta * d2r); var c = Math.cos(theta * d2r); return Vnew(x, y * c - z * s, z * c + y * s); }; var zRotate = function(theta, x, y, z) { var s = Math.sin(theta * d2r); var c = Math.cos(theta * d2r); return Vnew(x * c - y * s, y * c + x * s, z); }; // Distance without sqrt var sqDist = function() { var a = arguments; if(a.length === 4) { return (a[2]-a[0])(a[2]-a[0]) + (a[3]-a[1])(a[3]-a[1]); } else { return (a[3]-a[0])(a[3]-a[0]) + (a[4]-a[1])(a[4]-a[1]) + (a[5]-a[2])(a[5]-a[2]); } }; // Rectangle Rectangle var rrCol = function(x, y, w, h, x2, y2, w2, h2) { return x < x2 + w2 && y < y2 + h2 && x > x2 - w && y > y2 - h; }; // Cuboid in cuboid var ccCol = function(x, y, z, w, h, d, x2, y2, z2, w2, h2, d2) { return x > x2 - w && y > y2 - h && z > z2 - d && x < x2 + w2 && y < y2 + h2 && z < z2 + d2; }; // Copy var copyArr; var copyObj = function(obj) { var newObj = {}; for(var i in obj) { if(obj[i].length !== undefined) { newObj[key] = copyArr(obj[key]); continue; } if(typeof obj[i] === Object) { newObj[key] = copyObj(obj[key]); continue; } newObj[i] = obj[i]; } return newObj; }; var copyArr = function() { var arr = arguments[0]; var newArr = []; for(var i = 0; i < arr.length; i ++) { if(arr[i].length !== undefined) { newArr[i] = copyArr(arr[i]); continue; } if(typeof arr[i] === Object) { newArr[i] = copyObj(arr[i]); continue; } newArr[i] = arr[i]; } return newArr; }; // Sprites var sprites = sprites; sprites = false; var sn = ['logo', 'logosans']; var s = sn.length; if(!sprites) { sprites = { logo: function() { fill(255); noStroke(); rect(0, 50, 100, 150, 0, 0, 5, 5); fill(240); quad(0, 50, 100, 50, 90, 20, 10, 20); fill(230); rect(10, 0, 80, 20, 5, 5, 0, 0); fill(0, 200, 255); rect(0, 100, 100, 50); fill(255); textSize(40); textAlign(CENTER, CENTER); text("JG", 50, 125); return get(0, 0, 100, 200); }, logosans: function() { fill(255); noStroke(); rect(0, 50, 100, 150, 0, 0, 5, 5); fill(240); quad(0, 50, 100, 50, 90, 20, 10, 20); fill(230); rect(10, 0, 80, 20, 5, 5, 0, 0); fill(0, 200, 255); rect(0, 100, 100, 50); return get(0, 0, 100, 200); }, init: function(key) { background(0, 0, 0, 0); this[key] = this[key](); }, }; s = 0; } // Constants var SQRT2 = sqrt(2); // Globals var keys = {}; var keysr = {}; var keysp = {}; var clicked = false; var look; var shake = 0; var scene = "game"; var sceneAnim = 1; textFont(createFont("Trebuchet MS")); var clipStart = 5; var clicked = false; var FOV = 300; var orthographic = true; orthographic = false; var sun = Vnew(1.5, -2.5, 1); sun = Vnormalize(sun); var player; var oldTris = []; var blocksUpdated = true; var skyColor = color(0, 200, 255); var renderDistance = 7; var blockSize = 50; // Logo variables { var logotx = width / 2; var logoty = height 0.3; var logoy = 0; var logoyvel = height / 11; var logo = 0; var logoinit = false; // } // Created with variables { var withAnim = 0; // } // Game variables { // } // Fader var Fader = function() { this.color = color(0, 0, 0); this.opacity = 0; this.fading = false; this.speed = 0; this.screen = 0; this.fade = function(speed, col, screen) { if(!this.fading) { this.speed = speed; this.color = col; this.screen = screen; this.opacity = 0; this.fading = true; } }; this.display = function() { fill(this.color, this.opacity); if(this.fading) { if(this.opacity >= 255) { this.speed = -abs(this.speed); scene = this.screen; sceneAnim = 1; } if(this.opacity < 0) { this.speed = 0; this.opacity = 0; this.fading = false; } this.opacity += this.speed; } noStroke(); rect(-1, -1, width + 2, height + 2); }; }; var fader = new Fader(); // Camera var cam = { x: 0, y: 0, z: 0, yaw: 0, pitch: 0, }; // Clipping var clipRay = function(o, d) { var r = Vsub(d, o); return Vadd(o, Vmult(r, Vnew((clipStart - o.z) / r.z))); }; var clipTri = function(x1, y1, z1, x2, y2, z2, x3, y3, z3) { var p = Vnew(x1, y1, z1); var p2 = Vnew(x2, y2, z2); var p3 = Vnew(x3, y3, z3); if(z1 <= clipStart) { if(z2 > clipStart && z3 > clipStart) { return [p3, p2, clipRay(p2, p), clipRay(p3, p)]; } else if(z2 <= clipStart) { return [p3, clipRay(p3, p), clipRay(p3, p2)]; } else if(z3 <= clipStart) { return [p2, clipRay(p2, p), clipRay(p2, p3)]; } } if(z2 <= clipStart) { if(z1 > clipStart && z3 > clipStart) { return [p, p3, clipRay(p3, p2), clipRay(p, p2)]; } else if(z3 <= clipStart) { return [p, clipRay(p, p2), clipRay(p, p3)]; } } return [p, p2, clipRay(p2, p3), clipRay(p, p3)]; }; // Triangles var tris = []; var tri = function(v, v2, v3, n, r, g, b, a) { tris.push({ v: v, v2: v2, v3: v3, get ax() { return (this.v.x + this.v2.x + this.v3.x) / 3; }, get ay() { return (this.v.y + this.v2.y + this.v3.y) / 3; }, get az() { return (this.v.z + this.v2.z + this.v3.z) / 3; }, normal: Vnormalize(n), r: r, g: g, b: b, a: a, }); }; // Rotate block var rotateBlock = function(x, y, z, px, py, pz, n) { if(n === undefined) { n = 1; } for(var i = tris.length - 1; i > tris.length - 1 - 12 * n; i --) { var t = tris[i]; t.v = Vsub(t.v, Vnew(px, py, pz)); t.v2 = Vsub(t.v2, Vnew(px, py, pz)); t.v3 = Vsub(t.v3, Vnew(px, py, pz)); if(x !== 0) { t.v = xRotate(x, t.v.x, t.v.y, t.v.z); t.v2 = xRotate(x, t.v2.x, t.v2.y, t.v2.z); t.v3 = xRotate(x, t.v3.x, t.v3.y, t.v3.z); t.normal = xRotate(x, t.normal.x, t.normal.y, t.normal.z); } if(y !== 0) { t.v = yRotate(y, t.v.x, t.v.y, t.v.z); t.v2 = yRotate(y, t.v2.x, t.v2.y, t.v2.z); t.v3 = yRotate(y, t.v3.x, t.v3.y, t.v3.z); t.normal = yRotate(y, t.normal.x, t.normal.y, t.normal.z); } if(z !== 0) { t.v = zRotate(z, t.v.x, t.v.y, t.v.z); t.v2 = zRotate(z, t.v2.x, t.v2.y, t.v2.z); t.v3 = zRotate(z, t.v3.x, t.v3.y, t.v3.z); t.normal = zRotate(z, t.normal.x, t.normal.y, t.normal.z); } t.v = Vadd(t.v, Vnew(px, py, pz)); t.v2 = Vadd(t.v2, Vnew(px, py, pz)); t.v3 = Vadd(t.v3, Vnew(px, py, pz)); } }; // Rotate triangles var rotateTris = function(x, y, z, px, py, pz, n) { if(n === undefined) { n = 1; } for(var i = tris.length - 1; i > tris.length - 1 - n; i --) { var t = tris[i]; t.v = Vsub(t.v, Vnew(px, py, pz)); t.v2 = Vsub(t.v2, Vnew(px, py, pz)); t.v3 = Vsub(t.v3, Vnew(px, py, pz)); if(x !== 0) { t.v = xRotate(x, t.v.x, t.v.y, t.v.z); t.v2 = xRotate(x, t.v2.x, t.v2.y, t.v2.z); t.v3 = xRotate(x, t.v3.x, t.v3.y, t.v3.z); t.normal = xRotate(x, t.normal.x, t.normal.y, t.normal.z); } if(y !== 0) { t.v = yRotate(y, t.v.x, t.v.y, t.v.z); t.v2 = yRotate(y, t.v2.x, t.v2.y, t.v2.z); t.v3 = yRotate(y, t.v3.x, t.v3.y, t.v3.z); t.normal = yRotate(y, t.normal.x, t.normal.y, t.normal.z); } if(z !== 0) { t.v = zRotate(z, t.v.x, t.v.y, t.v.z); t.v2 = zRotate(z, t.v2.x, t.v2.y, t.v2.z); t.v3 = zRotate(z, t.v3.x, t.v3.y, t.v3.z); t.normal = zRotate(z, t.normal.x, t.normal.y, t.normal.z); } t.v = Vadd(t.v, Vnew(px, py, pz)); t.v2 = Vadd(t.v2, Vnew(px, py, pz)); t.v3 = Vadd(t.v3, Vnew(px, py, pz)); } }; // Blocks var block = function(x, y, z, w, h, d, R, G, B, A) { var b = { x: x, y: y, z: z, width: w, height: h, depth: d, }; var btl = Vnew(b.x, b.y, b.z + b.depth); var btr = Vnew(b.x + b.width, b.y, b.z + b.depth); var bbl = Vnew(b.x, b.y + b.height, b.z + b.depth); var bbr = Vnew(b.x + b.width, b.y + b.height, b.z + b.depth); var ftl = Vnew(b.x, b.y, b.z); var ftr = Vnew(b.x + b.width, b.y, b.z); var fbl = Vnew(b.x, b.y + b.height, b.z); var fbr = Vnew(b.x + b.width, b.y + b.height, b.z); var n = Vnew(0, 0, -1); tri(ftl, ftr, fbr, n, R, G, B, A); // front tri(ftl, fbl, fbr, n, R, G, B, A); var n = Vnew(0, 0, 1); tri(btl, btr, bbr, n, R, G, B, A); // back tri(btl, bbl, bbr, n, R, G, B, A); var n = Vnew(0, -1, 0); tri(btl, btr, ftr, n, R, G, B, A); // top tri(btl, ftl, ftr, n, R, G, B, A); var n = Vnew(0, 1, 0); tri(bbl, bbr, fbr, n, R, G, B, A); // bottom tri(bbl, fbl, fbr, n, R, G, B, A); var n = Vnew(-1, 0, 0); tri(btl, bbl, fbl, n, R, G, B, A); // left tri(btl, ftl, fbl, n, R, G, B, A); var n = Vnew(1, 0, 0); tri(btr, bbr, fbr, n, R, G, B, A); // right tri(btr, ftr, fbr, n, R, G, B, A); rotateBlock(0, 0, 0, 0, 0, 0); }; // Display Triangle var dispTri = function(pt) { // if(t.displayed) { // return; // } // t.displayed = true; var t = copyObj(pt); if(t.normal !== 1) { if(Vdot(look, t.normal) <= 0 && orthographic) { return; } if(!orthographic && Vdot(Vnormalize(Vsub(Vnew(t.ax, t.ay, t.az), Vnew(cam.x, cam.y, cam.z))), t.normal) >= 0) { return; } } t.v = Vnew(t.v.x - cam.x, t.v.y - cam.y, t.v.z - cam.z); t.v = yRotate(cam.yaw, t.v.x, t.v.y, t.v.z); t.v = xRotate(cam.pitch, t.v.x, t.v.y, t.v.z); t.v2 = Vnew(t.v2.x - cam.x, t.v2.y - cam.y, t.v2.z - cam.z); t.v2 = yRotate(cam.yaw, t.v2.x, t.v2.y, t.v2.z); t.v2 = xRotate(cam.pitch, t.v2.x, t.v2.y, t.v2.z); t.v3 = Vnew(t.v3.x - cam.x, t.v3.y - cam.y, t.v3.z - cam.z); t.v3 = yRotate(cam.yaw, t.v3.x, t.v3.y, t.v3.z); t.v3 = xRotate(cam.pitch, t.v3.x, t.v3.y, t.v3.z); if(t.v.z <= clipStart && t.v2.z <= clipStart && t.v3.z <= clipStart) { return; } var d = 1; var d2 = 1; var d3 = 1; if(!orthographic) { d = t.v.z / FOV; d2 = t.v2.z / FOV; d3 = t.v3.z / FOV; } var shade = 1; if(t.normal !== 1) { shade = 0; shade += constrain(Vdot(t.normal, sun), 0.3, 1); } var di = dist(t.ax, t.ay, t.az, cam.x, cam.y, cam.z); var c = color(t.r * shade, t.g * shade, t.b * shade); if(di > blockSize(renderDistance - 2)) { c = lerpColor(c, skyColor, map(di, blockSize(renderDistance - 2), blockSizerenderDistance, 0, 1)); } fill(c); stroke(c); strokeWeight(1); if(t.v.z > clipStart && t.v2.z > clipStart && t.v3.z > clipStart) { triangle(t.v.x / d, t.v.y / d, t.v2.x / d2, t.v2.y / d2, t.v3.x / d3, t.v3.y / d3); } else { var clipped = clipTri(t.v.x, t.v.y, t.v.z, t.v2.x, t.v2.y, t.v2.z, t.v3.x, t.v3.y, t.v3.z); var d = 1; var d2 = 1; var d3 = 1; if(!orthographic) { d = clipped[0].z / FOV; d2 = clipped[1].z / FOV; d3 = clipped[2].z / FOV; } if(clipped.length === 3) { triangle(clipped[0].x / d, clipped[0].y / d, clipped[1].x / d2, clipped[1].y / d2, clipped[2].x / d3, clipped[2].y / d3); } else { var d4 = 1; if(!orthographic) { d4 = clipped[3].z / FOV; } quad(clipped[0].x / d, clipped[0].y / d, clipped[1].x / d2, clipped[1].y / d2, clipped[2].x / d3, clipped[2].y / d3, clipped[3].x / d4, clipped[3].y / d4); } } }; // Blocks var blocks = []; var Block = function(x, y, z, type) { blocks.push({ x: x, y: y, z: z, width: blockSize, height: blockSize, depth: blockSize, type: type, display: function() { switch(this.type) { case "grass": block(this.x blockSize, this.y * blockSize, this.z * blockSize, blockSize, blockSize, blockSize, 0, 255, 0, 255); break; case "dirt": block(this.x * blockSize, this.y * blockSize, this.z * blockSize, blockSize, blockSize, blockSize, 255, 200, 0, 255); break; } }, }); }; // World Generation { var seed = random(1); var wx = 0; // } // Player var player = { x: 0, y: 0, z: 0, xVel: 0, yVel: 0, zVel: 0, onFloor: false, width: blockSize * 3/4, height: blockSize * 7/4, depth: blockSize * 3/4, col: function(xVel, yVel, zVel) { for(var i = 0; i < blocks.length; i += 1) { var b = blocks[i]; if(!ccCol(this.x, this.y, this.z, this.width, this.height, this.depth, b.x * blockSize, b.y * blockSize, b.z * blockSize, b.width, b.height, b.depth)) { continue; } switch(b.type) { default: if(xVel > 0) { this.x = b.x * blockSize - this.width; this.xVel = 0; } if(xVel < 0) { this.x = b.x * blockSize + b.width; this.xVel = 0; } if(yVel > 0) { this.y = b.y * blockSize - this.height; this.yVel = 0; this.onFloor = true; } if(yVel < 0) { this.y = b.y * blockSize + b.height; this.yVel = 0; } if(zVel > 0) { this.z = b.z * blockSize - this.depth; this.zVel = 0; } if(zVel < 0) { this.z = b.z * blockSize + b.depth; this.zVel = 0; } break; } } }, update: function() { var spd = 3; if(keys.a \|\| keys.s \|\| keys.d \|\| keys.w) { this.xVel = 0; this.zVel = 0; if(keys.d) { this.xVel += cos(cam.yaw) * spd; this.zVel += sin(cam.yaw) * spd; } if(keys.a) { this.xVel -= cos(cam.yaw) * spd; this.zVel -= sin(cam.yaw) * spd; } if(keys.w) { this.xVel += cos(90 + cam.yaw) * spd; this.zVel += sin(90 + cam.yaw) * spd; } if(keys.s) { this.xVel -= cos(90 + cam.yaw) * spd; this.zVel -= sin(90 + cam.yaw) * spd; } } else { this.xVel = 0.8; this.zVel = 0.8; } if(this.onFloor && keys[" "]) { this.yVel = -8; this.onFloor = false; } this.x += this.xVel; this.col(this.xVel); this.yVel += 0.5; this.y += this.yVel; this.onFloor = false; this.col(0, this.yVel); this.z += this.zVel; this.col(0, 0, this.zVel); cam.x = this.x + this.width/2; cam.y = this.y + this.height/4; cam.z = this.z + this.depth/2; }, }; // Mouse var mouseReleased = function() { clicked = true; }; // Keyboard var keyPressed = function() { keys[keyCode] = true; keys[key.toString().toLowerCase()] = true; keysp[keyCode] = true; keysp[key.toString().toLowerCase()] = true; }; var keyReleased = function() { keys[keyCode] = false; keys[key.toString().toLowerCase()] = false; keysr[keyCode] = true; keysr[key.toString().toLowerCase()] = true; }; var draw = delag(function() { fps(); resetTimer(25555); if(s < sn.length) { sprites.init(sn[s]); s ++; background(0); fill(255); textAlign(CENTER, CENTER); textSize(50); text("Loading images ...\n" + map(s, 0, sn.length, 0, 100) + "%", width/2, height/2); return; } if(wx < 20) { for(var j = 0; j < 20; j += 1) { var n = noise(wx * 0.1 + seed, j * 0.1 + seed); if(random(10) < 2) { Block(wx, 5 + round(n * 10), j, "dirt"); } else { Block(wx, 5 + round(n * 10), j, "grass"); } // for(var y = 1; y < 5; y += 1) { // Block(wx, 5 + round(n * 10) + y, j, "dirt"); // } } wx += 1; background(0); fill(255); textAlign(CENTER, CENTER); textSize(50); text("Loading world ...\n" + map(wx, 0, 20, 0, 100) + "%", width/2, height/2); return; } sceneAnim += 1; background(255); pushMatrix(); translate(random(-shake, shake), random(-shake, shake)); shake = max(shake - 1, 0); cursor(ARROW); switch(scene) { case "intro": // Intro { background(0); if(!logoinit) { logotx = width / 2; logoty = height * 0.3; logoy = 0; logoyvel = height / 11; logo = 0; frameCount = 0; logoinit = true; } if(frameCount > 25 && frameCount < 100) { logotx = 0.9; logoty = 0.8; image(sprites.logosans, width / 2 - map(sprites.logo.width, 0, 600, 0, width) / 2 - (100 - frameCount) * 30, height * 0.7 - map(sprites.logo.height, 0, 600, 0, height) / 2, map(sprites.logo.width, 0, 600, 0, width), map(sprites.logo.height, 0, 600, 0, height)); fill(255); textAlign(CENTER, CENTER); textSize(map(30, 0, 600, 0, width)); pushMatrix(); translate(width / 2 - logotx - textWidth("J") / 0.9, height * 0.75 + logoty); rotate(logotx); scale(2 - logotx / height * 4, 2 - logoty / height * 4); text("J", 0, 0); popMatrix(); pushMatrix(); translate(width / 2 + logotx + textWidth("G") / 0.9, height * 0.75 + logoty); rotate(logotx); scale(2 - logotx / height * 4, 2 - logoty / height * 0.4); text("G", 0, 0); popMatrix(); } else if(frameCount > 100) { if(frameCount < 120) { background((120 - frameCount) * 255/20); } logo = constrain(logo + 5, 0, 180); pushMatrix(); translate(width / 2 + cos(logo - 90) * 100, height * 0.7); rotate(cos(logo - 90) * 25); image(sprites.logo, -map(sprites.logo.width, 0, 600, 0, width) / 2, -map(sprites.logo.height, 0, 600, 0, width) / 2, map(sprites.logo.width, 0, 600, 0, width), map(sprites.logo.height, 0, 600, 0, height)); popMatrix(); if(frameCount > 125) { logoy += logoyvel; logoyvel = 0.9; textAlign(CENTER, CENTER); textSize(map(30, 0, 600, 0, width)); fill(255); text("J E N T A C U L A R G E N T", width / 2, logoy / 3.4 - 2); textSize(map(15, 0, 600, 0, width)); text("presents ...", width / 2, logoy / 3.4 + 40); fill(0, 0, 0); noStroke(); rect(0, 0, width, height / 6); if(frameCount >= 250) { fader.fade(10, color(0, 0, 0), "createdusing"); } } } // } break; case "createdusing": // Created using { withAnim += 4; background(0); fill(255); textAlign(CENTER, CENTER); textSize(50); text("Created with", width / 2 + 2000 / withAnim, height / 3); textAlign(CENTER, BOTTOM); fill(255, 0, 255); textSize(25); text("Jentacular Gent's", width / 2 - 2000 / withAnim, height 7/10 - 35); textAlign(CENTER, CENTER); fill(255, 150, 0); textSize(70); text("o c t o r y ", width / 2 - textWidth("3D") / 2, height * 7/10 - 2000 / withAnim); fill(0, 255, 255); text("3D", width / 2 + textWidth("o c t o r y ") / 2, height * 7/10 + 2000 / withAnim); textAlign(CENTER, TOP); fill(0, 255, 0); textSize(25); text("engine", width / 2, height * 7/10 + 35); // } if(withAnim > 500) { fader.fade(10, color(0), "menu"); } break; case "menu": // Menu { // } break; case "game": // Game { if(mouseIsPressed) { cam.yaw -= (mouseX - pmouseX) * ut; cam.pitch += (mouseY - pmouseY) * ut; } cam.pitch = constrain(cam.pitch, -90, 90); background(skyColor); look = xRotate(cam.pitch, 0, 0, 1); look = yRotate(cam.yaw, look.x, look.y, look.z); look.z = -look.z; pushMatrix(); translate(width / 2, height / 2); /RASTERIZER/ if(blocksUpdated) { tris = []; for(var i = blocks.length - 1; i >= 0; i --) { var b = blocks[i]; b.display(); } for(var i = tris.length - 1; i >= 0; i --) { var t = tris[i]; for(var j = i - 1; j >= 0; j -= 1) { var t2 = tris[j]; if(t.ax !== t2.ax \|\| t.ay !== t2.ay \|\| t.az !== t2.az) { continue; } tris.splice(i, 1); tris.splice(j, 1); i -= 1; break; } } oldTris = copyArr(tris); blocksUpdated = false; } else { tris = oldTris; } player.update(); // Z-SORT tris = tris.sort(function(a, b) { return (sqDist(a.ax, a.ay, a.az, cam.x, cam.y, cam.z) - sqDist(b.ax, b.ay, b.az, cam.x, cam.y, cam.z)); }); for(var i = tris.length - 1; i >= 0; i --) { var t = tris[i]; if(sqDist(t.ax, t.ay, t.az, cam.x, cam.y, cam.z) > blockSizeblockSizerenderDistancerenderDistance) { continue; } dispTri(t); } /RASTERIZER END*/ popMatrix(); // } break; } popMatrix(); keysr = {}; keysp = {}; fader.display(); clicked = false; fill(255); textAlign(LEFT, TOP); textSize(20); text(60/ut + ",\n" + this.__frameRate, 5, 5); }); // } }
Folds	20,632,635,1549
Fork	false
Key	ag5zfmtoYW4tYWNhZGVteXIXCxIKU2NyYXRjaHBhZBiAgPG_p6XXCQw
Votes	169
Spin-Offs	33
Type	PJS
Width	600
Height	600
User Flagged	false
Origin Scratchpad	null
Hidden From Hotlist	false
Restricted Posting	false
By Child	false
Author Nick	JentGent
Author Name	JentacularGent
Author ID	kaid_1111444645373975142506044
Author Profile Access	COACH

Archive Data

Added	10 months ago, 1739382221673
Updated	10 months ago, 1739382224195
Source Deleted	unknown