js实现一款升级益智类小游戏代码
代码语言：html
所属分类：游戏
代码描述：js实现一款升级益智类小游戏代码，玩法：将鼠标拖拽转动把小熊方到星星上即可升级。
下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开
<!DOCTYPE html>
<html lang="en" >
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
* { box-sizing: border-box; }
body {
margin: 0;
padding: 0;
overflow-x: hidden;
font-family: 'Avenir Next', Avenir, sans-serif;
font-weight: 500;
font-size: 20px;
color: #555;
background-color: #1B1B1B;
}
canvas {
cursor: move;
display: block;
position: absolute;
max-width: 100%;
left: 0;
top: 0;
}
.is-cub-hovered,
.is-cub-hovered canvas {
cursor: -webkit-grab;
cursor: grab;
}
.is-cub-dragging,
.is-cub-dragging canvas {
cursor: -webkit-grabbing;
cursor: grabbing;
}
.instruction {
padding: 0 10px;
text-align: center;
position: absolute;
width: 100%;
padding-bottom: 40px;
}
.button {
font-family: 'Avenir Next', Avenir, sans-serif;
font-weight: 500;
font-size: 20px;
padding: 5px 15px;
margin: 10px;
background: #BBB;
color: white;
border-radius: 5px;
border: none;
cursor: pointer;
}
.button:hover {
background: #09F;
}
.top-bar {
position: absolute;
left: 0;
top: 0;
}
.level-select-button {
position: relative;
z-index: 2; /* above canvas */
}
.next-level-button {
position: absolute;
left: 50%;
-webkit-transform: translateX(-110px) scale(0.5);
transform: translateX(-110px) scale(0.5);
opacity: 0;
background: #09F;
width: 200px;
height: 80px;
pointer-events: none;
-webkit-transition: -webkit-transform 0.2s, opacity 0.2s;
transition: transform 0.2s, opacity 0.2s;
}
.next-level-button:hover {
background: #2BF;
}
.next-level-button.is-open {
display: inline-block;
pointer-events: auto;
-webkit-transform: translateX(-110px) scale(1);
transform: translate(-110px) scale(1);
opacity: 1;
}
/* ---- level list ---- */
.level-list {
position: absolute;
background: #EEE;
width: 100%;
min-height: 100%;
left: 0;
top: 0;
margin: 0;
list-style: none;
padding: 10px;
z-index: 3; /* above canvas, level select button */
left: -100%;
transition: left 0.2s;
}
.level-list.is-open {
left: 0;
}
.level-list__item {
display: inline-block;
background: #DDD;
margin: 5px;
padding: 10px;
width: 80px;
height: 80px;
text-align: center;
border-radius: 10px;
position: relative;
}
.level-list__item:hover {
color: #09F;
cursor: pointer;
background: white;
}
.level-list__item.is-playing {
background: #09F;
color: white;
}
.level-list__item__number {
display: block;
font-size: 30px;
line-height: 35px;
}
.level-list__item__blurb {
display: block;
font-size: 16px;
}
.level-list__item__check {
position: absolute;
right: -10px;
top: -10px;
width: 30px;
line-height: 30px;
background: #555;
border-radius: 15px;
color: white;
display: none;
}
.level-list__item.did-complete .level-list__item__check {
display: block;
}
/* ---- level pres ---- */
.levels { display: none; }
</style>
</head>
<body>
<div class="top-bar">
<button class="button level-select-button">Levels</button>
</div>
<ol class="level-list"></ol>
<canvas></canvas>
<p class="instruction"></p>
<button class="button next-level-button">Next level</button>
<div class="levels">
<pre id="intro-fixed1" data-blurb="Tutorial">
blurb: Tutorial
instruction: Drag cub to star
---
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<pre id="intro-fixed2" data-blurb="Tutorial">
blurb: Tutorial
instruction: Drag grid to rotate. Cub and star moves with grid. Orange links stay in place.
---
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<pre id="intro-fixed3" data-blurb="★">
blurb: ★
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<pre id="intro-free1" data-blurb="Tutorial">
blurb: Tutorial
instruction: Blue links move with grid. Rotate grid to connect blue and orange links in different ways.
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</div>
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/*!
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// ----- ----- //
// utility function for getting x/y coords from event
Unipointer.getPointerPoint = function( pointer ) {
return {
x: pointer.pageX,
y: pointer.pageY
};
};
// ----- ----- //
return Unipointer;
}));
function FreeSegment( a, b ) {
this.type = 'FreeSegment';
this.a = a;
this.b = b;
// orientations
this.noon = {
a: a,
b: b
};
this.three = {
a: { x: -a.y, y: a.x },
b: { x: -b.y, y: b.x }
};
this.six = {
a: { x: -a.x, y: -a.y },
b: { x: -b.x, y: -b.y }
};
this.nine = {
a: { x: a.y, y: -a.x },
b: { x: b.y, y: -b.x }
};
}
var proto = FreeSegment.prototype;
proto.render = function( ctx, center, gridSize ) {
var ax = this.a.x * gridSize;
var ay = this.a.y * gridSize;
var bx = this.b.x * gridSize;
var by = this.b.y * gridSize;
ctx.strokeStyle = 'hsla(200, 80%, 50%, 0.7)';
ctx.lineWidth = gridSize * 0.6;
ctx.lineCap = 'round';
ctx.beginPath();
ctx.moveTo( ax, ay );
ctx.lineTo( bx, by );
ctx.stroke();
ctx.closePath();
};
function FixedSegment( a, b ) {
this.type = 'FixedSegment';
this.a = a;
this.b = b;
// orientations
this.noon = { a: a, b: b };
this.three = { a: a, b: b };
this.six = { a: a, b: b };
this.nine = { a: a, b: b };
}
var proto = FixedSegment.prototype;
proto.render = function( ctx, center, gridSize ) {
var ax = this.a.x * gridSize;
var ay = this.a.y * gridSize;
var bx = this.b.x * gridSize;
var by = this.b.y * gridSize;
ctx.strokeStyle = 'hsla(30, 100%, 40%, 0.6)';
ctx.lineWidth = gridSize * 0.8;
ctx.lineCap = 'round';
ctx.beginPath();
ctx.moveTo( ax, ay );
ctx.lineTo( bx, by );
ctx.stroke();
ctx.closePath();
};
function PivotSegment( a, b ) {
this.type = 'FreeSegment';
this.a = a;
this.b = b;
var dx = b.x - a.x;
var dy = b.y - a.y;
this.delta = { x: dx, y: dy };
// orientations
this.noon = {
a: a,
b: b
};
this.three = {
a: { x: -a.y, y: a.x },
b: { x: -a.y + dx, y: a.x + dy }
};
this.six = {
a: { x: -a.x, y: -a.y },
b: { x: -a.x + dx, y: -a.y + dy }
};
this.nine = {
a: { x: a.y, y: -a.x },
b: { x: a.y + dx, y: -a.x + dy }
};
}
var proto = PivotSegment.prototype;
proto.render = function( ctx, center, gridSize, mazeAngle ) {
var ax = this.a.x * gridSize;
var ay = this.a.y * gridSize;
var bx = this.delta.x * gridSize;
var by = this.delta.y * gridSize;
ctx.save();
ctx.translate( ax, ay );
ctx.rotate( -mazeAngle );
var color = 'hsla(150, 100%, 35%, 0.7)'
// line
ctx.strokeStyle = color;
ctx.lineWidth = gridSize * 0.4;
ctx.lineCap = 'round';
ctx.beginPath();
ctx.moveTo( 0, 0 );
ctx.lineTo( bx, by );
ctx.stroke();
ctx.closePath();
// circle
ctx.fillStyle = color;
ctx.beginPath();
ctx.arc( 0, 0, gridSize * 0.4, 0, Math.PI * 2 );
ctx.fill();
ctx.closePath();
ctx.restore();
};
var TAU = Math.PI * 2;
function RotateSegment( a, b ) {
this.type = 'RotateSegment';
this.a = a;
this.b = b;
// orientations
var dx = b.x - a.x;
var dy = b.y - a.y;
this.delta = { x: dx, y: dy };
this.theta = Math.atan2( dy, dx );
this.noon = { a: a, b: b };
this.three = { a: a, b: this.getB( TAU/4 ) };
this.six = { a: a, b: this.getB( TAU/2 ) };
this.nine = { a: a, b: this.getB( TAU*3/4 ) };
}
var proto = RotateSegment.prototype;
proto.getB = function( angle ) {
return {
x: Math.round( this.a.x + Math.cos( this.theta + angle ) * 2 ),
y: Math.round( this.a.y + Math.sin( this.theta + angle ) * 2 ),
};
};
proto.render = function( ctx, center, gridSize, mazeAngle ) {
var ax = this.a.x * gridSize;
var ay = this.a.y * gridSize;
ctx.save();
ctx.translate( ax, ay );
ctx.rotate( mazeAngle );
var color = 'hsla(0, 100%, 50%, 0.6)';
ctx.strokeStyle = color;
ctx.fillStyle = color;
// axle
ctx.lineWidth = gridSize* 0.8;
ctx.lineJoin = 'round';
ctx.rotate(TAU/8);
ctx.strokeRect( -gridSize*0.2, -gridSize*0.2, gridSize*0.4, gridSize*0.4 );
ctx.rotate(-TAU/8);
// line
ctx.lineWidth = gridSize * 0.8;
ctx.lineCap = 'round';
ctx.beginPath();
ctx.moveTo( 0, 0 );
var bx = this.delta.x * gridSize;
var by = this.delta.y * gridSize;
ctx.lineTo( bx, by );
ctx.stroke();
ctx.closePath();
ctx.restore();
};
// rotational physics model
var TAU = Math.PI * 2;
function FlyWheel( props ) {
this.angle = 0;
this.friction = 0.95;
this.velocity = 0;
for ( var prop in props ) {
this[ prop ] = props[ prop ];
}
}
var proto = FlyWheel.prototype;
proto.integrate = function() {
this.velocity *= this.friction;
this.angle += this.velocity;
this.normalizeAngle();
};
proto.applyForce = function( force ) {
this.velocity += force;
};
proto.normalizeAngle = function() {
this.angle = ( ( this.angle % TAU ) + TAU ) % TAU;
};
proto.setAngle = function( theta ) {
var velo = theta - this.angle;
if ( velo > TAU/2 ) {
velo -= TAU;
} else if ( velo < -TAU/2 ) {
velo += TAU;
}
var force = velo - this.velocity;
this.applyForce( force );
};
var cub = {
offset: { x: 0, y: 0 },
};
var pegOrienter = {
noon: function( peg ) {
return peg;
},
three: function( peg ) {
return { x: peg.y, y: -peg.x };
},
six: function( peg ) {
return { x: -peg.x, y: -peg.y };
},
nine: function( peg ) {
return { x: -peg.y, y: peg.x };
},
};
cub.setPeg = function( peg, orientation ) {
peg = pegOrienter[ orientation ]( peg );
this.peg = peg;
this.noon = { x: peg.x, y: peg.y };
this.three = { x: -peg.y, y: peg.x };
this.six = { x: -peg.x, y: -peg.y };
this.nine = { x: peg.y, y: -peg.x };
};
var offsetOrienter = {
noon: function( offset ) {
return offset;
},
three: function( offset ) {
// flip y because its rendering
return { x: offset.y, y: -offset.x };
},
six: function( offset ) {
return { x: -offset.x, y: -offset.y };
},
nine: function( offset ) {
// flip y because its rendering
return { x: -offset.y, y: offset.x };
},
};
cub.setOffset = function( offset, orientation ) {
this.offset = offsetOrienter[ orientation ]( offset );
};
// ----- render ----- //
cub.render = function( ctx, mazeCenter, gridSize, angle, isHovered ) {
function circle( x, y, radius ) {
ctx.beginPath();
ctx.arc( x, y, radius, 0, Math.PI * 2 );
ctx.fill();
ctx.closePath();
}
var x = this.peg.x * gridSize + this.offset.x;
var y = this.peg.y * gridSize + this.offset.y;
ctx.save();
ctx.translate( mazeCenter.x, mazeCenter.y );
ctx.rotate( angle );
ctx.translate( x, y );
ctx.rotate( -angle );
ctx.fillStyle = 'hsla(330, 100%, 40%, 1)';
var scale = isHovered ? 1.15 : 1;
ctx.scale( scale, scale );
circle( 0, 0, gridSize * 0.6 );
circle( gridSize * -0.45, gridSize * -0.35, gridSize * 0.3 );
circle( gridSize * 0.45, gridSize * -0.35, gridSize * 0.3 );
ctx.restore();
};
/* globals FlyWheel, FreeSegment, FixedSegment, PivotSegment, RotateSegment, cub */
function Maze() {
this.freeSegments = [];
this.fixedSegments = [];
this.pivotSegments = [.........完整代码请登录后点击上方下载按钮下载查看
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