js实现canvas皇家斯图尔特格子背景效果代码-html代码-BFW代码库

代码语言：html

所属分类：背景

代码描述：js实现canvas皇家斯图尔特格子背景效果代码

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">

  
  
  
<style>
body {
	margin:0;
	background:#034710;	
}


#cvs {
	border:solid black 4px;
	border-radius:12px;
	position:absolute;
	left:50%;
	top:50%;
	transform:translate(-50%,-50%);
}
</style>




</head>

<body >
  <canvas id="cvs" width="599" height="599"></canvas>

      <script >
let ctx
const SQUARE_SIZE = 599
const MAIN_COLOR = '#AB0303'
const RED_WEAVE_COLOR = '#810303'
const BLUE_WEAVE_COLOR = '#2C215E'
const BLACK_WEAVE_COLOR = '#150B0B'
const YELLOW_WEAVE_COLOR = '#AB8D03'
const WHITE_WEAVE_COLOR = '#B9B9B9'
const GREEN_WEAVE_COLOR = '#094710'
const BLUE_BK_COLOR = '#25256D'
const BLACK_BK_COLOR = '#0C0C0C'
const GREEN_BK_COLOR = '#035613'
const YELLOW_BK_COLOR = '#C3A103'
const YELLOW_BK_WEAVE_COLOR = '#987E03'
const WHITE_BK_COLOR = '#D4D4D4'
const WHITE_BK_WEAVE_COLOR = '#A1A1A1'

function drawTartan() {
	const cvsNd = document.getElementById("cvs")
	ctx = cvsNd.getContext('2d')
	
	solidWeave({x:0,y:0,w:SQUARE_SIZE,h:SQUARE_SIZE,c:MAIN_COLOR,wc:RED_WEAVE_COLOR})
	
	let nNewY = 0
	let nWidth = 72
	let nNewX = 0

	gapRow({y:nNewY,h:72})
	
	nNewY = 180
	gapRow({y:nNewY,h:20})
	
	nNewY = nNewY + 26
	gapRow({y:nNewY,h:8})
	
	nNewY = nNewY + 16
	gapRow({y:nNewY,h:8})
	
	nNewY = nNewY + 16
	gapRow({y:nNewY,h:20})
	
	nNewY = nNewY + 130
	gapRow({y:nNewY,h:152})
	
	// ***
	nNewX=0
	nNewY=0
	nNewY = 72
	regRow({y:nNewY,h:18,c:BLUE_WEAVE_COLOR,bgc:BLUE_BK_COLOR})
	nNewY=nNewY+18
	
	regRow({y:nNewY,h:24,c:BLACK_WEAVE_COLOR,bgc:BLACK_BK_COLOR})	
	nNewY=nNewY+24
	
	regRow({y:nNewY,h:8,c:YELLOW_WEAVE_COLOR})	
	nNewY=nNewY+8
	
	regRow({y:nNewY,h:8,c:BLACK_WEAVE_COLOR,bgc:BLACK_BK_COLOR})	
	nNewY=nNewY+8
	
	regRow({y:nNewY,h:8,c:WHITE_WEAVE_COLOR,bgc:BLUE_BK_COLOR})
	nNewY=nNewY+8
	
	regRow({y:nNewY,h:8,c:BLACK_WEAVE_COLOR,bgc:BLACK_BK_COLOR})
	nNewY=nNewY+8
	
	regRow({y:nNewY,h:34,c:GREEN_WEAVE_COLOR,bgc:BLUE_BK_COLOR})
	nNewY=nNewY+34

	nNewY=nNewY+18
	regRow({y:nNewY,h:8,c:BLACK_WEAVE_COLOR,bgc:BLACK_BK_COLOR})
	nNewY=nNewY+8
	
	nNewY=nNewY+8
	regRow({y:nNewY,h:9,c:WHITE_WEAVE_COLOR,bgc:BLUE_BK_COLOR})
	nNewY=nNewY+9
	
	nNewY=nNewY+8
	regRow({y:nNewY,h:8,c:BLACK_WEAVE_COLOR,bgc:BLACK_BK_COLOR})
	nNewY=nNewY+8
	
	nNewY=nNewY+18
	regRow({y:nNewY,h:34,c:GREEN_WEAVE_COLOR,bgc:BLUE_BK_COLOR})
	nNewY=nNewY+34
	
	regRow({y:nNewY,h:8,c:BLACK_WEAVE_COLOR,bgc:BLACK_BK_COLOR})
	nNewY=nNewY+8
	
	regRow({y:nNewY,h:9,c:WHITE_WEAVE_COLOR,bgc:BLUE_BK_COLOR})
	nNewY=nNewY+9
	
	regRow({y:nNewY,h:8,c:BLACK_WEAVE_COLOR,bgc:BLACK_BK_COLOR})
	nNewY=nNewY+8
	
	regRow({y:nNewY,h:8,c:YELLOW_WEAVE_COLOR})	
	nNewY=nNewY+8
	
	regRow({y:nNewY,h:26,c:BLACK_WEAVE_COLOR,bgc:BLACK_BK_COLOR})	
	nNewY=nNewY+26
	
	regRow({y:nNewY,h:18,c:BLUE_WEAVE_COLOR,bgc:BLUE_BK_COLOR})
	nNewY=nNewY+18
	
	nNewY=nNewY+152
	regRow({y:nNewY,h:18,c:BLUE_WEAVE_COLOR,bgc:BLUE_BK_COLOR})
	nNewY=nNewY+18
	
	regRow({y:nNewY,h:25,c:BLACK_WEAVE_COLOR,bgc:BLACK_BK_COLOR})	
	nNewY=nNewY+25
	
	regRow({y:nNewY,h:8,c:YELLOW_WEAVE_COLOR})	
	nNewY=nNewY+8
	
	regRow({y:nNewY,h:8,c:BLACK_WEAVE_COLOR,bgc:BLACK_BK_COLOR})
	nNewY=nNewY+8
	
	regRow({y:nNewY,h:9,c:WHITE_WEAVE_COLOR,bgc:BLUE_BK_COLOR})
	nNewY=nNewY+9
	
	regRow({y:nNewY,h:10,c:BLACK_WEAVE_COLOR,bgc:BLACK_BK_COLOR})
	nNewY=nNewY+10
	//console.log(nNewY)
} // end of drawTartan


//function weaveY1(startX,startY,nWidth,nHeight,nOffset,sColor,sBgColor) {
function weaveY1(params) {
	let startX = params.x
	let startY = params.y
	let nWidth = params.w
  let nHeight = params.h
	let nOffset = params.o
	let sColor = params.c
	let sBgColor = params.b
	let sBgStichColor = params.bsc
	
	let nStart = nWidth
	
	if (nHeight>nWidth) {
		nStart = nHeight
	} // end if
	
	let x = (nStart+nOffset) * -1
	
	let y = startY
	const c2 = document.createElement("canvas")
	c2.width = nWidth
	c2.height = nHeight
	const ctx2 = c2.getContext('2d')
	ctx2.lineWidth = 1.5
	ctx2.strokeStyle = sColor
	
	do {
		ctx2.beginPath()
		ctx2.moveTo(x, 0)
		let x2 = x+nHeight
		let y2 = nHeight
				
		
		ctx2.lineTo(x2, y2)
		ctx2.closePath()
		ctx2.stroke()
		x = x + 6
	} while (x < nWidth)
		
	ctx.drawImage(c2,startX,startY, nWidth, nHeight)
} // end of weaveY1()


function solidWeave(params) {
	let startX = params.x
	let startY = params.y
	let nWidth = params.w
	let nHeight = params.h
	let sBgColor = params.c
	let sWeaveColor = params.wc
		
	
	const STITCH_SIZE = 6
	const STITCH_OFFSET = STITCH_SIZE / 2
	//const STITCH_INCR = STITCH_SIZE + Math.floor(STITCH_SIZE * .7)
	const STITCH_INCR = 10
	const c2 = document.createElement("canvas")
	c2.width = nWidth
	c2.height = nHeight
	const ctx2 = c2.getContext('2d')
	
	ctx2.fillStyle = sBgColor
	ctx2.fillRect(0, 0, nWidth, nHeight)
	
	if (typeof sWeaveColor === "string") {
		ctx2.lineWidth = 1
		ctx2.strokeStyle = sWeaveColor
		let x = 0
		let y = -1
		let i=0
		do {
				do {
					ctx2.fillRect(x, y, STITCH_SIZE, STITCH_SIZE)
					ctx2.strokeRect(x, y, STITCH_SIZE, STITCH_SIZE)
					x = x + STITCH_INCR
				} while (x<nWidth)
				y = y + STITCH_OFFSET
				i = i + 1
				if (i===2) {
					i=-1
				}
				x = i * STITCH_OFFSET
			} while (y < nHeight)		
		
	} // end if (typeof sWeaveColor === "string")
	
	ctx.drawImage(c2,startX,startY, nWidth, nHeight)
} // end of solidWeave()

function regRow(params) {
	let nNewY = params.y
	let nHeight = params.h
	let sStitchColor = params.c
	let sBgColor = params.bgc
	let sWeaveColor = sStitchColor
	let nNewX = 0
	
	if (typeof params.wc === "string") {
		sWeaveColor = params.wc
	} // end if
	
	let sWhiteBackgroundColor = sBgColor
	let sYellowBackgroundColor = sBgColor
	let sWhiteBgWeaveColor = sWeaveColor
	let sYellowBgWeaveColor = sWeaveColor
	
	if (sStitchColor===YELLOW_WEAVE_COLOR) {
		sYellowBackgroundColor = YELLOW_BK_COLOR
		sYellowBgWeaveColor = YELLOW_BK_WEAVE_COLOR
	} // end if
	
	if (sStitchColor===WHITE_WEAVE_COLOR) {
		sWhiteBackgroundColor = WHITE_BK_COLOR
		sWhiteBgWeaveColor = WHITE_BK_WEAVE_COLOR
	} // end if
	
	weaveY1({x:nNewX,y:nNewY,w:72,h:nHeight,o:0,c:sStitchColor})
	
	nNewX = nNewX + 72
	solidWeave({y:nNewY,x:nNewX,h:nHeight,w:18,c:sBgColor,wc.........完整代码请登录后点击上方下载按钮下载查看