228 lines
8 KiB
TypeScript
228 lines
8 KiB
TypeScript
"use strict"
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import Geometry, { Rect } from '../common/Geometry'
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import Graphics from './Graphics'
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import Util, { logger } from './../common/Util'
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import { Puzzle, PuzzleInfo, PieceShape, EncodedPiece } from './../common/Types'
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const log = logger('PuzzleGraphics.js')
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async function createPuzzleTileBitmaps(
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img: ImageBitmap,
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pieces: EncodedPiece[],
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info: PuzzleInfo
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): Promise<Array<ImageBitmap>> {
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log.log('start createPuzzleTileBitmaps')
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const tileSize = info.tileSize
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const tileMarginWidth = info.tileMarginWidth
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const tileDrawSize = info.tileDrawSize
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const tileRatio = tileSize / 100.0
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const curvyCoords = [
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0, 0, 40, 15, 37, 5,
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37, 5, 40, 0, 38, -5,
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38, -5, 20, -20, 50, -20,
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50, -20, 80, -20, 62, -5,
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62, -5, 60, 0, 63, 5,
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63, 5, 65, 15, 100, 0
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];
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const bitmaps: Array<ImageBitmap> = new Array(pieces.length)
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const paths: Record<string, Path2D> = {}
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function pathForShape(shape: PieceShape) {
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const key = `${shape.top}${shape.right}${shape.left}${shape.bottom}`
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if (paths[key]) {
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return paths[key]
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}
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const path = new Path2D()
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const topLeftEdge = { x: tileMarginWidth, y: tileMarginWidth }
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const topRightEdge = Geometry.pointAdd(topLeftEdge, { x: tileSize, y: 0 })
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const bottomRightEdge = Geometry.pointAdd(topRightEdge, { x: 0, y: tileSize })
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const bottomLeftEdge = Geometry.pointSub(bottomRightEdge, { x: tileSize, y: 0 })
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path.moveTo(topLeftEdge.x, topLeftEdge.y)
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if (shape.top !== 0) {
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for (let i = 0; i < curvyCoords.length / 6; i++) {
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const p1 = Geometry.pointAdd(topLeftEdge, { x: curvyCoords[i * 6 + 0] * tileRatio, y: shape.top * curvyCoords[i * 6 + 1] * tileRatio })
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const p2 = Geometry.pointAdd(topLeftEdge, { x: curvyCoords[i * 6 + 2] * tileRatio, y: shape.top * curvyCoords[i * 6 + 3] * tileRatio })
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const p3 = Geometry.pointAdd(topLeftEdge, { x: curvyCoords[i * 6 + 4] * tileRatio, y: shape.top * curvyCoords[i * 6 + 5] * tileRatio })
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path.bezierCurveTo(p1.x, p1.y, p2.x, p2.y, p3.x, p3.y);
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}
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} else {
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path.lineTo(topRightEdge.x, topRightEdge.y)
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}
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if (shape.right !== 0) {
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for (let i = 0; i < curvyCoords.length / 6; i++) {
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const p1 = Geometry.pointAdd(topRightEdge, { x: -shape.right * curvyCoords[i * 6 + 1] * tileRatio, y: curvyCoords[i * 6 + 0] * tileRatio })
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const p2 = Geometry.pointAdd(topRightEdge, { x: -shape.right * curvyCoords[i * 6 + 3] * tileRatio, y: curvyCoords[i * 6 + 2] * tileRatio })
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const p3 = Geometry.pointAdd(topRightEdge, { x: -shape.right * curvyCoords[i * 6 + 5] * tileRatio, y: curvyCoords[i * 6 + 4] * tileRatio })
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path.bezierCurveTo(p1.x, p1.y, p2.x, p2.y, p3.x, p3.y);
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}
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} else {
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path.lineTo(bottomRightEdge.x, bottomRightEdge.y)
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}
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if (shape.bottom !== 0) {
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for (let i = 0; i < curvyCoords.length / 6; i++) {
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const p1 = Geometry.pointSub(bottomRightEdge, { x: curvyCoords[i * 6 + 0] * tileRatio, y: shape.bottom * curvyCoords[i * 6 + 1] * tileRatio })
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const p2 = Geometry.pointSub(bottomRightEdge, { x: curvyCoords[i * 6 + 2] * tileRatio, y: shape.bottom * curvyCoords[i * 6 + 3] * tileRatio })
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const p3 = Geometry.pointSub(bottomRightEdge, { x: curvyCoords[i * 6 + 4] * tileRatio, y: shape.bottom * curvyCoords[i * 6 + 5] * tileRatio })
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path.bezierCurveTo(p1.x, p1.y, p2.x, p2.y, p3.x, p3.y);
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}
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} else {
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path.lineTo(bottomLeftEdge.x, bottomLeftEdge.y)
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}
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if (shape.left !== 0) {
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for (let i = 0; i < curvyCoords.length / 6; i++) {
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const p1 = Geometry.pointSub(bottomLeftEdge, { x: -shape.left * curvyCoords[i * 6 + 1] * tileRatio, y: curvyCoords[i * 6 + 0] * tileRatio })
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const p2 = Geometry.pointSub(bottomLeftEdge, { x: -shape.left * curvyCoords[i * 6 + 3] * tileRatio, y: curvyCoords[i * 6 + 2] * tileRatio })
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const p3 = Geometry.pointSub(bottomLeftEdge, { x: -shape.left * curvyCoords[i * 6 + 5] * tileRatio, y: curvyCoords[i * 6 + 4] * tileRatio })
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path.bezierCurveTo(p1.x, p1.y, p2.x, p2.y, p3.x, p3.y);
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}
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} else {
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path.lineTo(topLeftEdge.x, topLeftEdge.y)
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}
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paths[key] = path
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return path
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}
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const c = Graphics.createCanvas(tileDrawSize, tileDrawSize)
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const ctx = c.getContext('2d') as CanvasRenderingContext2D
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const c2 = Graphics.createCanvas(tileDrawSize, tileDrawSize)
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const ctx2 = c2.getContext('2d') as CanvasRenderingContext2D
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for (const p of pieces) {
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const piece = Util.decodePiece(p)
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const srcRect = srcRectByIdx(info, piece.idx)
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const path = pathForShape(Util.decodeShape(info.shapes[piece.idx]))
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ctx.clearRect(0, 0, tileDrawSize, tileDrawSize)
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// stroke (slightly darker version of image)
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// -----------------------------------------------------------
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// -----------------------------------------------------------
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ctx.save()
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ctx.lineWidth = 2
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ctx.stroke(path)
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ctx.globalCompositeOperation = 'source-in'
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ctx.drawImage(
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img,
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srcRect.x - tileMarginWidth,
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srcRect.y - tileMarginWidth,
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tileDrawSize,
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tileDrawSize,
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0,
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0,
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tileDrawSize,
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tileDrawSize,
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)
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ctx.restore()
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ctx.save()
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ctx.globalCompositeOperation = 'source-in'
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ctx.globalAlpha = .2
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ctx.fillStyle = 'black'
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ctx.fillRect(0,0, c.width, c.height)
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ctx.restore()
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// main image
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// -----------------------------------------------------------
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// -----------------------------------------------------------
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ctx.save()
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ctx.clip(path)
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ctx.drawImage(
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img,
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srcRect.x - tileMarginWidth,
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srcRect.y - tileMarginWidth,
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tileDrawSize,
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tileDrawSize,
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0,
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0,
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tileDrawSize,
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tileDrawSize,
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)
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ctx.restore()
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// INSET SHADOW (bottom, right)
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// -----------------------------------------------------------
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// -----------------------------------------------------------
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ctx.save()
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ctx.clip(path)
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ctx.strokeStyle = 'rgba(0,0,0,.4)'
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ctx.lineWidth = 0
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ctx.shadowColor = "black";
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ctx.shadowBlur = 2;
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ctx.shadowOffsetX = -1;
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ctx.shadowOffsetY = -1;
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ctx.stroke(path)
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ctx.restore()
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// INSET SHADOW (top, left)
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// -----------------------------------------------------------
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// -----------------------------------------------------------
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ctx.save()
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ctx.clip(path)
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ctx.strokeStyle = 'rgba(255,255,255,.4)'
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ctx.lineWidth = 0
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ctx.shadowColor = "white";
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ctx.shadowBlur = 2;
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ctx.shadowOffsetX = 1;
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ctx.shadowOffsetY = 1;
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ctx.stroke(path)
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ctx.restore()
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// Redraw the path (border) in the color of the
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// tile, this makes the tile look more realistic
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// -----------------------------------------------------------
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// -----------------------------------------------------------
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ctx2.clearRect(0, 0, tileDrawSize, tileDrawSize)
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ctx2.save()
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ctx2.lineWidth = 1
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ctx2.stroke(path)
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ctx2.globalCompositeOperation = 'source-in'
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ctx2.drawImage(
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img,
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srcRect.x - tileMarginWidth,
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srcRect.y - tileMarginWidth,
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tileDrawSize,
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tileDrawSize,
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0,
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0,
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tileDrawSize,
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tileDrawSize,
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)
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ctx2.restore()
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ctx.drawImage(c2, 0, 0)
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bitmaps[piece.idx] = await createImageBitmap(c)
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}
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log.log('end createPuzzleTileBitmaps')
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return bitmaps
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}
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function srcRectByIdx(puzzleInfo: PuzzleInfo, idx: number): Rect {
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const c = Util.coordByPieceIdx(puzzleInfo, idx)
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return {
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x: c.x * puzzleInfo.tileSize,
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y: c.y * puzzleInfo.tileSize,
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w: puzzleInfo.tileSize,
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h: puzzleInfo.tileSize,
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}
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}
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async function loadPuzzleBitmaps(puzzle: Puzzle): Promise<Array<ImageBitmap>> {
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// load bitmap, to determine the original size of the image
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const bmp = await Graphics.loadImageToBitmap(puzzle.info.imageUrl)
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// creation of tile bitmaps
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// then create the final puzzle bitmap
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// NOTE: this can decrease OR increase in size!
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const bmpResized = await Graphics.resizeBitmap(bmp, puzzle.info.width, puzzle.info.height)
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return await createPuzzleTileBitmaps(bmpResized, puzzle.tiles, puzzle.info)
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}
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export default {
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loadPuzzleBitmaps,
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}
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