PK PNV flexible-snake/README.mdUT c# Flexible snake
A Pen created on CodePen.io. Original URL: [https://codepen.io/bali_balo/pen/nQpvEB](https://codepen.io/bali_balo/pen/nQpvEB).
The sneaky snake length is varying when it's taking sharp bends.PK PK PNV flexible-snake/LICENSE.txtUT cThe MIT License (MIT)
Copyright (c) 2023 Bali Balo (https://codepen.io/bali_balo/pen/nQpvEB)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.PK͔}`] ] PK PNV flexible-snake/src/index.htmlUT c
Use space or down to pause and space or up to resume.
PK
PK PNV flexible-snake/src/style.cssUT c@import url(https://fonts.googleapis.com/css?family=Merriweather+Sans:300);
#c
{
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
#settings
{
position: absolute;
right: 0;
font-family: 'Merriweather Sans', sans-serif;
font-size: 14px;
line-height: 18px;
}
#settings .block
{
display: inline-block;
vertical-align: top;
height: 18px;
overflow: hidden;
transition: .3s all;
}
#settings:hover .block
{
height: 54px;
}
input[type="checkbox"]
{
vertical-align: -1px;
margin: 0 3px;
}
.notice-pause
{
position: absolute;
bottom: 0;
width: 100%;
text-align: center;
color: #999;
font: 14px 'Merriweather Sans', sans-serif;
}PKȫ PK PNV flexible-snake/src/script.jsUT cMath.PI2 = 2 * Math.PI;
if(!window.requestAnimationFrame)
{
window.requestAnimationFrame = (function(){
return window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.oRequestAnimationFrame ||
window.msRequestAnimationFrame ||
function(callback, element){
return window.setTimeout(callback, 1000 / 60);
};
})();
}
if(!window.cancelAnimationFrame)
{
window.cancelAnimationFrame = (function(){
return window.webkitCancelAnimationFrame ||
window.mozCancelAnimationFrame ||
window.oCancelAnimationFrame ||
window.msCancelAnimationFrame ||
function(a){
window.clearTimeout(a);
};
})();
}
function comeCloser(n, goal, factor, limit)
{
return (limit && Math.abs(goal - n) < limit) ? n : n + (goal - n) / (factor || 10);
}
function randomBetween(min, max)
{
return Math.random() * (max - min) + min;
}
function Point(x, y)
{
this.x = x;
this.y = y;
return this;
}
Point.prototype = {
clone: function() { return new Point(this.x, this.y); },
add: function(p)
{
this.x += p.x;
this.y += p.y;
return this;
},
sub: function(p)
{
this.x -= p.x;
this.y -= p.y;
return this;
},
dist: function(p)
{
var x = p.x - this.x,
y = p.y - this.y;
return Math.sqrt(x*x + y*y);
},
toPolar: function()
{
return new Polar(Math.atan2(this.y, this.x),
Math.sqrt(this.y*this.y + this.x*this.x));
}
};
function Polar(a, d)
{
this.a = a;
this.d = d;
return this;
}
Polar.prototype = {
set: function(p,v) { this[p] = v; return this; },
clone: function() { return new Polar(this.a, this.d); },
multiply: function(f)
{
this.d *= f;
return this;
},
toPoint: function()
{
return new Point(this.d * Math.cos(this.a),
this.d * Math.sin(this.a));
}
};
var scoreFont = ' Verdana, Geneva, sans-serif';
var fontFamily = ' "Merriweather Sans", sans-serif';
$(document).ready(function() {
var $c = $('#c'),
c = $c[0],
ctx = c.getContext('2d'),
w = c.width, h = c.height,
played = false, ingame = false,
playing = false, aniFrame;
var kbd = {left: false, right: false};
/* P for positions, M for movements */
var goal, goalSize,
bodyP = [], bodyM = [],
bodyRadius, rotSpeed,
density, score;
var drawing = {circles: true,
lines: false,
contour: false};
function newGoal()
{
var p, ok = false,
rect = {
x: {min: 2 * bodyRadius, max: w - 2*bodyRadius},
y: {min: 2 * bodyRadius, max: h - 2*bodyRadius}
},
i, len = bodyP.length;
while(!ok)
{
p = new Point(randomBetween(rect.x.min, rect.x.max),
randomBetween(rect.y.min, rect.y.max));
ok = true;
// Prevent giving free candies
// Comment the following loop if you don't mind
for(i = 0; i < len; i++)
if(p.dist(bodyP[i]) <= bodyRadius)
{
ok = false;
break;
}
}
goalSize = 200;
goal = p;
}
function start()
{
if(playing) return;
bodyRadius = 9;
rotSpeed = 0.085;
density = 0.15;
bodyP = [new Point(w*0.5, h*0.5)];
bodyM = [new Polar(0, 2.2)];
score = 0;
newGoal();
played = ingame = playing = true;
step();
}
function lose(source)
{
stop();
ingame = false;
draw();
ctx.font = '30px'+fontFamily;
ctx.textAlign = 'center';
ctx.textBaseline = 'bottom';
var text = 'GAME OVER';
if(source == 'tail') text = 'OH SNAKE, WHY DID YOU EAT YOURSELF ?!';
if(source == 'wall') text = 'THERE\'S A WALL DOWN THERE';
ctx.fillText(text, w*0.5, h*0.5);
/* Prevent photoshopping */
ctx.font = '30px'+scoreFont;
var rScore = Math.round(score);
ctx.textBaseline = 'middle';
ctx.save();
ctx.translate(w*0.5, h*0.5 + 15);
for(var i = 0, n = 5; i < n; i++)
{
ctx.save();
ctx.fillStyle = 'rgba(0,0,0,'+((i + 1) / (n * 3))+')';
ctx.translate(randomBetween(-5,5), randomBetween(-5,5));
ctx.rotate(randomBetween(-Math.PI*0.1, Math.PI*0.1));
var s = randomBetween(0.9,1.2);
ctx.scale(s, s);
ctx.fillText(rScore, 0, 0);
ctx.restore();
}
ctx.fillStyle = 'black';
ctx.fillText(rScore, 0, 0);
ctx.restore();
}
function resume()
{
if(playing) return;
playing = true;
step();
}
function stop()
{
cancelAnimationFrame(aniFrame);
playing = false;
}
function step()
{
if(!playing) return;
score = Math.max(0, score - 0.005 * bodyP.length);
goalSize = comeCloser(goalSize, 1, 15);
if(kbd.left)
bodyM[0].a -= rotSpeed;
if(kbd.right)
bodyM[0].a += rotSpeed;
bodyM[0].a %= Math.PI2;
var i, l, point, head = bodyP[0];
for(i = 1, l = bodyM.length; i < l; i++)
bodyM[i] = bodyP[i].clone().sub(bodyP[i - 1])
.toPolar().multiply(-density);
for(i = 0, l = bodyP.length; i < l; i++)
{
point = bodyP[i];
point.add(bodyM[i].toPoint());
if(point.dist(goal) <= bodyRadius)
{
score += 50 * l;
bodyM.push(bodyM[l - 1].clone());
bodyP.push(bodyP[l - 1].clone());
newGoal();
}
if(i > 2 && point.dist(head) < 2 * bodyRadius)
return lose('tail');
}
if(head.x < bodyRadius || head.x > w - bodyRadius
|| head.y < bodyRadius || head.y > h - bodyRadius)
return lose('wall');
draw();
if(playing)
aniFrame = requestAnimationFrame(step);
}
function draw()
{
ctx.clearRect(0, 0, w, h);
ctx.font = '15px'+scoreFont;
ctx.textAlign = 'left';
ctx.textBaseline = 'top';
ctx.fillText(Math.round(score), 0, 0);
ctx.beginPath();
ctx.arc(goal.x, goal.y, goalSize, 0, Math.PI2, false);
ctx.stroke();
var p, i, l;
if(drawing.circles)
{
for(i = 0, l = bodyP.length; i < l; i++)
{
p = bodyP[i];
ctx.beginPath();
ctx.arc(p.x, p.y, bodyRadius, 0, Math.PI2, false);
ctx.stroke();
}
}
if(drawing.lines)
{
ctx.beginPath();
p = bodyP[0].clone().add(bodyM[0].clone().set('d', bodyRadius).toPoint());
ctx.moveTo(p.x, p.y);
for(i = 0, l = bodyP.length; i < l; i++)
{
p = bodyP[i];
ctx.lineTo(p.x, p.y);
}
p = bodyP[l-1].clone().add(bodyM[l-1].clone().set('d', bodyRadius).toPoint());
ctx.lineTo(p.x, p.y);
ctx.stroke();
}
if(drawing.contour)
{
ctx.beginPath();
p = bodyP[0];
ctx.save();
ctx.translate(p.x, p.y);
ctx.rotate(bodyM[0].a + Math.PI*0.5);
ctx.arc(0, 0, bodyRadius, 0, Math.PI, true);
ctx.restore();
for(i = 1, l = bodyP.length; i < l; i++)
{
p = bodyP[i];
ctx.save();
ctx.translate(p.x, p.y);
ctx.rotate(bodyM[i].a);
ctx.lineTo(0, bodyRadius);
ctx.restore();
}
p = bodyP[l-1];
ctx.save();
ctx.translate(p.x, p.y);
ctx.rotate(bodyM[l-1].a + Math.PI * 0.5);
ctx.arc(0, 0, bodyRadius, 0, Math.PI, true);
ctx.restore();
for(i = l - 1; i > 0; i--)
{
p = bodyP[i];
ctx.save();
ctx.translate(p.x, p.y);
ctx.rotate(bodyM[i].a);
ctx.lineTo(0, -bodyRadius);
ctx.restore();
}
ctx.closePath();
ctx.stroke();
}
}
$(document).keydown(function(e){
var preventDefault = true;
switch(e.keyCode)
{
case 32:
if(ingame && playing)
{
stop();
break;
}
if(!playing)
if(!ingame) start();
else resume();
break;
case 40:
if(ingame && playing) stop();
break;
case 38:
if(!playing)
if(!ingame) start();
else resume();
break;
case 37:
kbd.left = true;
break;
case 39:
kbd.right = true;
break;
default:
preventDefault = false;
}
if(preventDefault) e.preventDefault();
}).keyup(function(e){
var preventDefault = true;
switch(e.keyCode)
{
case 37:
kbd.left = false;
break;
case 39:
kbd.right = false;
break;
default:
preventDefault = false;
}
if(preventDefault) e.preventDefault();
});
$(window).resize(function(){
w = c.width = $c.width();
h = c.height = $c.height();
if(!played)
{
ctx.font = '37px'+fontFamily;
ctx.textAlign = 'center';
ctx.textBaseline = 'bottom';
ctx.strokeText('PRESS SPACE OR UP TO START', w*0.5, h*0.5);
ctx.font = '20px'+fontFamily;
ctx.textBaseline = 'top';
ctx.fillText('Then use left and right arrows to turn and eat everything', w*0.5, h*0.5);
}
}).resize();
$('#circles, #lines, #contour').change(function(e) {
var $this = $(this);
drawing[$this.attr('id')] = $this.is(':checked');
}).change();
});PKVN:# # PK PNV flexible-snake/dist/index.htmlUT c
CodePen - Flexible snake
Use space or down to pause and space or up to resume.
PK8t7 7 PK PNV flexible-snake/dist/style.cssUT c@import url(https://fonts.googleapis.com/css?family=Merriweather+Sans:300);
#c
{
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
#settings
{
position: absolute;
right: 0;
font-family: 'Merriweather Sans', sans-serif;
font-size: 14px;
line-height: 18px;
}
#settings .block
{
display: inline-block;
vertical-align: top;
height: 18px;
overflow: hidden;
transition: .3s all;
}
#settings:hover .block
{
height: 54px;
}
input[type="checkbox"]
{
vertical-align: -1px;
margin: 0 3px;
}
.notice-pause
{
position: absolute;
bottom: 0;
width: 100%;
text-align: center;
color: #999;
font: 14px 'Merriweather Sans', sans-serif;
}PKȫ PK PNV flexible-snake/dist/script.jsUT cMath.PI2 = 2 * Math.PI;
if(!window.requestAnimationFrame)
{
window.requestAnimationFrame = (function(){
return window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.oRequestAnimationFrame ||
window.msRequestAnimationFrame ||
function(callback, element){
return window.setTimeout(callback, 1000 / 60);
};
})();
}
if(!window.cancelAnimationFrame)
{
window.cancelAnimationFrame = (function(){
return window.webkitCancelAnimationFrame ||
window.mozCancelAnimationFrame ||
window.oCancelAnimationFrame ||
window.msCancelAnimationFrame ||
function(a){
window.clearTimeout(a);
};
})();
}
function comeCloser(n, goal, factor, limit)
{
return (limit && Math.abs(goal - n) < limit) ? n : n + (goal - n) / (factor || 10);
}
function randomBetween(min, max)
{
return Math.random() * (max - min) + min;
}
function Point(x, y)
{
this.x = x;
this.y = y;
return this;
}
Point.prototype = {
clone: function() { return new Point(this.x, this.y); },
add: function(p)
{
this.x += p.x;
this.y += p.y;
return this;
},
sub: function(p)
{
this.x -= p.x;
this.y -= p.y;
return this;
},
dist: function(p)
{
var x = p.x - this.x,
y = p.y - this.y;
return Math.sqrt(x*x + y*y);
},
toPolar: function()
{
return new Polar(Math.atan2(this.y, this.x),
Math.sqrt(this.y*this.y + this.x*this.x));
}
};
function Polar(a, d)
{
this.a = a;
this.d = d;
return this;
}
Polar.prototype = {
set: function(p,v) { this[p] = v; return this; },
clone: function() { return new Polar(this.a, this.d); },
multiply: function(f)
{
this.d *= f;
return this;
},
toPoint: function()
{
return new Point(this.d * Math.cos(this.a),
this.d * Math.sin(this.a));
}
};
var scoreFont = ' Verdana, Geneva, sans-serif';
var fontFamily = ' "Merriweather Sans", sans-serif';
$(document).ready(function() {
var $c = $('#c'),
c = $c[0],
ctx = c.getContext('2d'),
w = c.width, h = c.height,
played = false, ingame = false,
playing = false, aniFrame;
var kbd = {left: false, right: false};
/* P for positions, M for movements */
var goal, goalSize,
bodyP = [], bodyM = [],
bodyRadius, rotSpeed,
density, score;
var drawing = {circles: true,
lines: false,
contour: false};
function newGoal()
{
var p, ok = false,
rect = {
x: {min: 2 * bodyRadius, max: w - 2*bodyRadius},
y: {min: 2 * bodyRadius, max: h - 2*bodyRadius}
},
i, len = bodyP.length;
while(!ok)
{
p = new Point(randomBetween(rect.x.min, rect.x.max),
randomBetween(rect.y.min, rect.y.max));
ok = true;
// Prevent giving free candies
// Comment the following loop if you don't mind
for(i = 0; i < len; i++)
if(p.dist(bodyP[i]) <= bodyRadius)
{
ok = false;
break;
}
}
goalSize = 200;
goal = p;
}
function start()
{
if(playing) return;
bodyRadius = 9;
rotSpeed = 0.085;
density = 0.15;
bodyP = [new Point(w*0.5, h*0.5)];
bodyM = [new Polar(0, 2.2)];
score = 0;
newGoal();
played = ingame = playing = true;
step();
}
function lose(source)
{
stop();
ingame = false;
draw();
ctx.font = '30px'+fontFamily;
ctx.textAlign = 'center';
ctx.textBaseline = 'bottom';
var text = 'GAME OVER';
if(source == 'tail') text = 'OH SNAKE, WHY DID YOU EAT YOURSELF ?!';
if(source == 'wall') text = 'THERE\'S A WALL DOWN THERE';
ctx.fillText(text, w*0.5, h*0.5);
/* Prevent photoshopping */
ctx.font = '30px'+scoreFont;
var rScore = Math.round(score);
ctx.textBaseline = 'middle';
ctx.save();
ctx.translate(w*0.5, h*0.5 + 15);
for(var i = 0, n = 5; i < n; i++)
{
ctx.save();
ctx.fillStyle = 'rgba(0,0,0,'+((i + 1) / (n * 3))+')';
ctx.translate(randomBetween(-5,5), randomBetween(-5,5));
ctx.rotate(randomBetween(-Math.PI*0.1, Math.PI*0.1));
var s = randomBetween(0.9,1.2);
ctx.scale(s, s);
ctx.fillText(rScore, 0, 0);
ctx.restore();
}
ctx.fillStyle = 'black';
ctx.fillText(rScore, 0, 0);
ctx.restore();
}
function resume()
{
if(playing) return;
playing = true;
step();
}
function stop()
{
cancelAnimationFrame(aniFrame);
playing = false;
}
function step()
{
if(!playing) return;
score = Math.max(0, score - 0.005 * bodyP.length);
goalSize = comeCloser(goalSize, 1, 15);
if(kbd.left)
bodyM[0].a -= rotSpeed;
if(kbd.right)
bodyM[0].a += rotSpeed;
bodyM[0].a %= Math.PI2;
var i, l, point, head = bodyP[0];
for(i = 1, l = bodyM.length; i < l; i++)
bodyM[i] = bodyP[i].clone().sub(bodyP[i - 1])
.toPolar().multiply(-density);
for(i = 0, l = bodyP.length; i < l; i++)
{
point = bodyP[i];
point.add(bodyM[i].toPoint());
if(point.dist(goal) <= bodyRadius)
{
score += 50 * l;
bodyM.push(bodyM[l - 1].clone());
bodyP.push(bodyP[l - 1].clone());
newGoal();
}
if(i > 2 && point.dist(head) < 2 * bodyRadius)
return lose('tail');
}
if(head.x < bodyRadius || head.x > w - bodyRadius
|| head.y < bodyRadius || head.y > h - bodyRadius)
return lose('wall');
draw();
if(playing)
aniFrame = requestAnimationFrame(step);
}
function draw()
{
ctx.clearRect(0, 0, w, h);
ctx.font = '15px'+scoreFont;
ctx.textAlign = 'left';
ctx.textBaseline = 'top';
ctx.fillText(Math.round(score), 0, 0);
ctx.beginPath();
ctx.arc(goal.x, goal.y, goalSize, 0, Math.PI2, false);
ctx.stroke();
var p, i, l;
if(drawing.circles)
{
for(i = 0, l = bodyP.length; i < l; i++)
{
p = bodyP[i];
ctx.beginPath();
ctx.arc(p.x, p.y, bodyRadius, 0, Math.PI2, false);
ctx.stroke();
}
}
if(drawing.lines)
{
ctx.beginPath();
p = bodyP[0].clone().add(bodyM[0].clone().set('d', bodyRadius).toPoint());
ctx.moveTo(p.x, p.y);
for(i = 0, l = bodyP.length; i < l; i++)
{
p = bodyP[i];
ctx.lineTo(p.x, p.y);
}
p = bodyP[l-1].clone().add(bodyM[l-1].clone().set('d', bodyRadius).toPoint());
ctx.lineTo(p.x, p.y);
ctx.stroke();
}
if(drawing.contour)
{
ctx.beginPath();
p = bodyP[0];
ctx.save();
ctx.translate(p.x, p.y);
ctx.rotate(bodyM[0].a + Math.PI*0.5);
ctx.arc(0, 0, bodyRadius, 0, Math.PI, true);
ctx.restore();
for(i = 1, l = bodyP.length; i < l; i++)
{
p = bodyP[i];
ctx.save();
ctx.translate(p.x, p.y);
ctx.rotate(bodyM[i].a);
ctx.lineTo(0, bodyRadius);
ctx.restore();
}
p = bodyP[l-1];
ctx.save();
ctx.translate(p.x, p.y);
ctx.rotate(bodyM[l-1].a + Math.PI * 0.5);
ctx.arc(0, 0, bodyRadius, 0, Math.PI, true);
ctx.restore();
for(i = l - 1; i > 0; i--)
{
p = bodyP[i];
ctx.save();
ctx.translate(p.x, p.y);
ctx.rotate(bodyM[i].a);
ctx.lineTo(0, -bodyRadius);
ctx.restore();
}
ctx.closePath();
ctx.stroke();
}
}
$(document).keydown(function(e){
var preventDefault = true;
switch(e.keyCode)
{
case 32:
if(ingame && playing)
{
stop();
break;
}
if(!playing)
if(!ingame) start();
else resume();
break;
case 40:
if(ingame && playing) stop();
break;
case 38:
if(!playing)
if(!ingame) start();
else resume();
break;
case 37:
kbd.left = true;
break;
case 39:
kbd.right = true;
break;
default:
preventDefault = false;
}
if(preventDefault) e.preventDefault();
}).keyup(function(e){
var preventDefault = true;
switch(e.keyCode)
{
case 37:
kbd.left = false;
break;
case 39:
kbd.right = false;
break;
default:
preventDefault = false;
}
if(preventDefault) e.preventDefault();
});
$(window).resize(function(){
w = c.width = $c.width();
h = c.height = $c.height();
if(!played)
{
ctx.font = '37px'+fontFamily;
ctx.textAlign = 'center';
ctx.textBaseline = 'bottom';
ctx.strokeText('PRESS SPACE OR UP TO START', w*0.5, h*0.5);
ctx.font = '20px'+fontFamily;
ctx.textBaseline = 'top';
ctx.fillText('Then use left and right arrows to turn and eat everything', w*0.5, h*0.5);
}
}).resize();
$('#circles, #lines, #contour').change(function(e) {
var $this = $(this);
drawing[$this.attr('id')] = $this.is(':checked');
}).change();
});PKVN:# # PK PNV flexible-snake/README.mdUT cPK PNV͔}`] ] ! flexible-snake/LICENSE.txtUT cPK PNV
flexible-snake/src/index.htmlUT cPK PNVȫ & flexible-snake/src/style.cssUT cPK PNVVN:# # $ flexible-snake/src/script.jsUT cPK PNV8t7 7 +/ flexible-snake/dist/index.htmlUT cPK PNVȫ 3 flexible-snake/dist/style.cssUT cPK PNVVN:# # 6 flexible-snake/dist/script.jsUT cPK Z