Untitled Goose on path 🏠🌳
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// Forked from "Houses on path 🏠🌳" by markknol
// https://turtletoy.net/turtle/4c92500323
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-133.777, -53.905,
-133.285, -55.065,
-132.831, -56.248,
-132.413, -57.439,
-132.032, -58.621,
-131.738, -59.6,
-131.415, -60.747,
-131.125, -61.849,
-130.866, -62.892,
-130.603, -64.012,
-130.382, -65.003,
-130.152, -66.068,
-129.939, -67.046,
-129.929, -67.088,
-129.704, -68.168,
-129.508, -69.252,
-129.336, -70.274,
-129.152, -71.424,
-128.989, -72.493,
-128.827, -73.624,
-128.667, -74.799,
-128.54, -75.803,
-128.419, -76.817,
-128.307, -77.835,
-128.206, -78.847,
-128.119, -79.845,
-128.034, -81.009,
-127.992, -81.759,
-127.953, -82.829,
-127.945, -83.832,
-127.983, -84.893,
-128.096, -85.931,
-128.16, -86.263,
-128.502, -87.35,
-128.914, -88.274,
-129.422, -89.233,
-130.002, -90.215,
-130.628, -91.207,
-131.277, -92.196,
-131.923, -93.17,
-132.082, -93.41];
var c = [
124.993, 16.553,
126.997, 15.456,
128.936, 14.395,
130.81, 13.371,
132.622, 12.382,
134.372, 11.429,
136.06, 10.509,
137.69, 9.624,
139.26, 8.772,
140.773, 7.952,
142.229, 7.164,
143.63, 6.408,
144.976, 5.682,
146.27, 4.986,
147.511, 4.319,
148.7, 3.681,
149.84, 3.072,
150.931, 2.49,
151.974, 1.935,
152.97, 1.406,
153.921, 0.902,
154.827, 0.424,
156.509, -0.46,
158.025, -1.251,
159.385, -1.955,
160.596, -2.576,
161.148, -2.857];
var d = [
124.993, 16.553,
125.65, 17.738,
127.643, 16.621,
129.57, 15.541,
131.433, 14.497,
133.234, 13.489,
134.972, 12.516,
136.649, 11.577,
138.267, 10.672,
139.826, 9.8,
141.328, 8.961,
142.773, 8.153,
144.162, 7.377,
145.497, 6.632,
146.779, 5.916,
148.009, 5.23,
149.187, 4.573,
150.316, 3.944,
151.395, 3.342,
152.427, 2.768,
153.412, 2.219,
154.351, 1.696,
155.246, 1.199,
156.905, 0.276,
158.399, -0.555,
159.736, -1.298,
160.924, -1.958,
161.466, -2.259,
162.448, -2.805,
163.498, -3.389,
164.521, -3.96,
165.424, -4.466,
166.128, -4.869,
166.742, -5.251,
166.82, -5.327,
166.826, -5.373,
166.793, -5.407,
166.676, -5.407,
165.979, -5.173,
164.99, -4.74,
163.963, -4.255,
163.031, -3.8,
161.914, -3.244,
161.148, -2.857];
var f=[
130.655, 47.377,
130.586, 48.73,
130.586, 48.73,
199.5, 51.586,
130.655, 47.377];
var g=[
120.77, 80.122,
120.16, 81.332,
122.662, 82.582,
125.08, 83.791,
127.417, 84.96,
129.673, 86.09,
131.85, 87.182,
133.95, 88.235,
135.973, 89.252,
137.922, 90.232,
139.797, 91.175,
141.6, 92.084,
143.333, 92.958,
144.997, 93.798,
146.593, 94.605,
148.123, 95.379,
149.587, 96.122,
150.989, 96.833,
152.328, 97.513,
153.607, 98.164,
154.826, 98.785,
155.988, 99.378,
157.093, 99.942,
158.143, 100.479,
159.14, 100.99,
160.084, 101.475,
160.978, 101.934,
162.618, 102.78,
164.073, 103.532,
164.734, 103.875,
165.647, 104.349,
166.724, 104.911,
167.651, 105.396,
168.616, 105.904,
169.521, 106.382,
170.36, 106.826,
171.092, 107.199,
171.199, 107.233,
171.222, 107.227,
171.242, 107.219,
171.242, 107.219,
171.258, 107.205,
171.26, 107.173,
171.193, 107.063,
170.536, 106.536,
169.609, 105.93,
168.688, 105.368,
167.705, 104.787,
166.761, 104.243,
165.664, 103.62,
165.055, 103.278,
163.709, 102.53,
162.182, 101.691,
160.464, 100.756,
159.529, 100.251,
158.542, 99.72,
157.501, 99.162,
156.406, 98.577,
155.254, 97.964,
154.044, 97.322,
152.775, 96.651,
151.445, 95.95,
150.053, 95.219,
148.598, 94.456,
147.078, 93.661,
145.491, 92.834,
143.837, 91.973,
142.114, 91.079,
140.32, 90.15,
138.454, 89.185,
136.515, 88.185,
134.502, 87.148,
132.412, 86.074,
130.244, 84.962,
127.997, 83.812,
125.671, 82.622,
123.262, 81.392,
120.77, 80.122];
var list = [a,b,c,d,f,g];
var scale=0.06;
var tx=7;
var ty=-6.5;
var k=0;
function goose() {
var k;
for(k=0;k<list.length;++k) {
var j=0;
turtle.penup();
turtle.goto(
tx+scale*list[k][j*2+0],
ty-scale*list[k][j*2+1]
);
turtle.pendown();
for(j=1;j<list[k].length/2;++j) {
turtle.goto(
tx+scale*list[k][j*2+0],
ty-scale*list[k][j*2+1]
);
}
turtle.penup();
}
}
// You can find the Turtle API reference here: https://turtletoy.net/syntax
Canvas.setpenopacity(2);
const PATH_PRECISION = .5;
const totalPathPoints = 180; // min=5, max=5000, step=1
const totalPathSpiral1 = 0.69; // min=0.01, max=10, step=0.01
const totalPathSpiral2 = 0.13; // min=0.001, max=2, step=0.001
let houseWidth = 15; // min=5, max=40, step=1
houseWidth /= PATH_PRECISION;
let houseDistance = 30; // min=10 max=100, step=1
houseDistance /= PATH_PRECISION;
let houseHeight = 14; // min=1 max=100, step=1
let houseDepth = 10; // min=1 max=100, step=1
houseDepth /= PATH_PRECISION;
const roof = 25; // min=10 max=100, step=0.5
// 3d depth
const z = 0.94; // min=0.5 max=1, step=0.01
// Global code will be evaluated once.
const turtle = new Turtle();
turtle.pendown();
let path;
let objectId = (Math.random() * 777) | 0;
// The walk function will be called until it returns false.
function walk(i) {
if (i === 0) {
setup();
goose();
turtle.goto(0,0);
turtle.pendown();
}
// line of the path
turtle.jump(path[i][0], path[i][1]);
turtle.goto(path[i+1][0], path[i+1][1]);
// houses
if (i > 4 && i % houseDistance === 0 && i + houseWidth+houseDepth < path.length - 1) {
if (objectId % 4 < 2) drawHouse(i, i + houseWidth);
else if(objectId % 4 == 2) {
if(Math.random()>0.1)drawTree(i+ 5, houseHeight * 0.5);
if(Math.random()>0.1)drawTree(i+ 5 + houseWidth / 2, houseHeight*0.75);
if(Math.random()>0.1)drawTree(i+ 5 + houseWidth, houseHeight * 0.5);
} else drawFlat(i, i + houseWidth);
objectId ++;
}
return i < path.length - 2;
}
function drawTree(x, treeHeight) {
moveTo(path, x - 1);
lineTo(path, x - 1, treeHeight);
lineTo(path, x - 1 , treeHeight + 2);
lineTo(path, x - 1 - randomRange(6,7), treeHeight + 4);
lineTo(path, x - 1 - randomRange(5,7), treeHeight + 10);
lineTo(path, x - 1 - randomRange(3,4), treeHeight + 14);
lineTo(path, x , treeHeight + 18);
lineTo(path, x + 1 + randomRange(3,4), treeHeight + 14);
lineTo(path, x + 1 + randomRange(5,7), treeHeight + 10);
lineTo(path, x + 1 + randomRange(6,7), treeHeight + 4);
lineTo(path, x + 1, treeHeight);
lineTo(path, x + 1);
}
function drawHouse(x1,x2) {
var hasLine = Math.random()>.5;
var doubleLine = Math.random()>.5;
var windowHeight = 3;
// walls
moveTo(path, x1);
lineTo(path, x1, houseHeight);
var roofX = ((x1 + x2) * 0.5) | 0
lineTo(path, roofX, roof);
lineTo(path, x2, houseHeight);
lineTo(path, x2);
// 3d depth
line(path, roofX, roof* z, roofX + houseDepth, roof );
lineTo(path, x2 + houseDepth, houseHeight * z);
line(path, x2, houseHeight * z, x2 + houseDepth, houseHeight);
moveTo(path, x2 + houseDepth, houseHeight * z);
lineTo(path, x2 + houseDepth);
// wall/roof line
if (hasLine) line(path, x1, houseHeight, x2, houseHeight);
if (hasLine && doubleLine) {
line(path, x1, houseHeight-1, x2, houseHeight-1);
// double line
line(path, x2, houseHeight * z-1, x2 + houseDepth, houseHeight-1);
}
// door
var doorWidth = 3;
var doorX = Math.random() > 0.5 ? x1 + 2 : x2 - 2 - doorWidth;
moveTo(path, doorX);
lineTo(path, doorX, 5);
lineTo(path, doorX + doorWidth, 5);
lineTo(path, doorX + doorWidth);
// windows
for(let ii=0;ii<=2;ii++) {
var x = ii * 3;
if (Math.random()> 0.5 && 8+windowHeight < houseHeight) {
moveTo(path, x+x1 + 2, 8);
lineTo(path, x+x1 + 2, 8+windowHeight);
lineTo(path, x+x1 + 4, 8+windowHeight);
lineTo(path, x+x1 + 4, 8);
lineTo(path, x+x1 + 2, 8);
}
}
}
function drawFlat(x1,x2) {
var doubleLine = Math.random()>.5;
var windowHeight = 3;
const flatHeight = roof;
// walls
moveTo(path, x1);
lineTo(path, x1, flatHeight);
moveTo(path, x2, flatHeight);
lineTo(path, x2);
line(path, x2, flatHeight * z, x2 + houseDepth, flatHeight);
moveTo(path, x2 + houseDepth, flatHeight * z);
lineTo(path, x2 + houseDepth);
// wall/roof line
line(path, x1, flatHeight, x2, flatHeight);
if (doubleLine) {
line(path, x1, flatHeight-1, x2, flatHeight-1);
// double line
line(path, x2, flatHeight * z-1, x2 + houseDepth, flatHeight-1);
}
// door
var doorWidth = 3;
var doorX = Math.random() > 0.5 ? x1 + 2 : x2 - 2 - doorWidth;
moveTo(path, doorX);
lineTo(path, doorX, 5);
lineTo(path, doorX + doorWidth, 5);
lineTo(path, doorX + doorWidth);
// windows
var windowWidth = 4;
for(let ii=0;ii<=14;ii++) {
var x = ii * windowWidth;
if (x>1&&x +windowWidth +1 < houseWidth) {
for(let jj=0;jj<14;jj++) {
var h = 8 + jj * 4;
if (Math.random() > 0.6 && h+windowHeight+1 < roof) {
moveTo(path, x+x1, h);
lineTo(path, x+x1, h+windowHeight);
lineTo(path, x+x1+windowWidth, h+windowHeight);
lineTo(path, x+x1+windowWidth, h);
lineTo(path, x+x1, h);
}
}
}
}
}
function getPos(path, x, y = 0) {
var idx = x|0;
var p1 = path[idx+1];
var p2 = path[idx];
var a = angle(p2, p1) - Math.PI*0.5;
// TODO: fix this interpolation somehow..
var t = x - idx; // 10.34 - 10 = 0.34
var xx = lerp(p2[0], p1[0], t);
var yy = lerp(p2[1], p1[1], t);
return [xx + Math.cos(a) * y, yy + Math.sin(a) * y];
}
function moveTo(path, x, y = 0) {
var pos = getPos(path, x, y);
turtle.jump(pos[0], pos[1]);
}
function lineTo(path, x, y = 0) {
var pos = getPos(path, x, y);
turtle.goto(pos[0], pos[1]);
}
function line(path, x1, y1, x2, y2, precision = PATH_PRECISION/2) {
var xa = Math.min(x1,x2);
var xb = Math.max(x1,x2);
for(let x=xa;x<=xb; x+=precision) {
var t=((xb-x)/(xb-xa));
if (x==x1) moveTo(path, x, lerp(y1,y2,t));
else lineTo(path, x, lerp(y1,y2,t));
}
//lineTo(path, xx, y2);
}
function setup(){
path = createPath();
path = normalizePath(path, PATH_PRECISION);
console.log(path);
}
// vec2 functions
const equal2=(a,b)=>.001>dist_sqr2(a,b);
const scale2=(a,b)=>[a[0]*b,a[1]*b];
const add2=(a,b)=>[a[0]+b[0],a[1]+b[1]];
const sub2=(a,b)=>[a[0]-b[0],a[1]-b[1]];
const dot2=(a,b)=>a[0]*b[0]+a[1]*b[1];
const dist_sqr2=(a,b)=>(a[0]-b[0])*(a[0]-b[0])+(a[1]-b[1])*(a[1]-b[1]);
const dist=(a,b)=>Math.sqrt(dist_sqr2(a,b));
const angle=(a,b)=>Math.atan2(b[1]-a[1], b[0]-a[0]);
const center=(a,b)=>[(a[0]+b[0])/2,(a[1]+b[1])/2];
const lerp=(a,b,t)=>a+(b-a)*t;
const clone=(a)=>[a[0],a[1]];
const clamp01=(t)=>Math.min(1.0,Math.max(0.0,t));
const randomRange=(a,b)=>a+Math.random()*(b-a)
const createPath = ()=> {
const path = [];
const total = totalPathPoints;
for (let i = 0; i < total; i++) {
let r = i * totalPathSpiral1;
path.push([r * Math.cos(i*totalPathSpiral2), r * Math.sin(i*totalPathSpiral2)]);
}
return path;
}
const normalizePath = (path, minDist) => {
var newPath = [];
let d = 0.0
let prev = path[0];
newPath.push(clone(prev));
for (let i = 1; i < path.length; i++) {
let curr = clone(path[i]);
d = dist(prev, curr);
var a = angle(prev, curr);
while (d > minDist) {
prev[0] += Math.cos(a) * minDist;
prev[1] += Math.sin(a) * minDist;
newPath.push(clone(prev));
d -= minDist;
}
}
return newPath;
}