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Merge pull request #12 from keguigong/dev
Add HP bar and mountain
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,130 @@ | ||
| import Runner from "./Runner" | ||
| import { IS_HIDPI } from "./varibles" | ||
|
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| export default class HPBar { | ||
| canvas!: HTMLCanvasElement | ||
| ctx!: CanvasRenderingContext2D | ||
| spritePos!: Position | ||
| canvasWidth = 0 | ||
|
|
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| x = 0 | ||
| y = 0 | ||
|
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| hp = 3 | ||
| hpChanged = false | ||
| flashTimer = 0 | ||
| flashIterations = 0 | ||
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| opacity = 0 | ||
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| constructor(canvas: HTMLCanvasElement, spritePos: Position, canvasWidth: number) { | ||
| this.canvas = canvas | ||
| this.ctx = canvas.getContext("2d")! | ||
| this.spritePos = spritePos | ||
| this.canvasWidth = canvasWidth | ||
| } | ||
|
|
||
| update(deltaTime: number, hp: number) { | ||
| let paint = true | ||
| if (this.opacity < 1) { | ||
| this.opacity = Math.min(this.opacity + HPBar.config.FADE_SPEED, 1) | ||
| } | ||
|
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| if (!this.hpChanged) { | ||
| this.hpChanged = hp !== this.hp | ||
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| this.flashIterations = 0 | ||
| this.flashTimer = 0 | ||
| } else { | ||
| if (this.flashIterations <= HPBar.config.FLASH_ITERATIONS) { | ||
| this.flashTimer += deltaTime | ||
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| if (this.flashTimer < HPBar.config.FLASH_DURATION) { | ||
| paint = false | ||
| } else if (this.flashTimer > HPBar.config.FLASH_DURATION * 2) { | ||
| this.flashTimer = 0 | ||
| this.flashIterations++ | ||
| } | ||
| } else { | ||
| this.hpChanged = false | ||
| this.flashIterations = 0 | ||
| this.flashTimer = 0 | ||
| } | ||
| } | ||
|
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| this.hp = hp | ||
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| // Draw the digits if not flashing. | ||
| if (paint) { | ||
| for (let i = 0; i <= HPBar.config.MAX_HP - 1; i++) { | ||
| if (i <= this.hp - 1) { | ||
| this.draw(i, 0) | ||
| } else { | ||
| this.draw(i, 1) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| draw(targetPos: number, sourcePos: number) { | ||
| let sourceWidth = HPBar.dimensions.WIDTH | ||
| let sourceHeight = HPBar.dimensions.HEIGHT | ||
| let sourceX = HPBar.dimensions.WIDTH * sourcePos | ||
| let sourceY = 0 | ||
|
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||
| let targetX = targetPos * HPBar.dimensions.DEST_WIDTH | ||
| let targetY = this.y | ||
| let targetWidth = HPBar.dimensions.WIDTH | ||
| let targetHeight = HPBar.dimensions.HEIGHT | ||
|
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| if (IS_HIDPI) { | ||
| sourceWidth *= 2 | ||
| sourceHeight *= 2 | ||
| sourceX *= 2 | ||
| } | ||
|
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| sourceX += this.spritePos.x | ||
| sourceY += this.spritePos.y | ||
|
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||
| this.ctx.save() | ||
| this.ctx.globalAlpha = this.opacity | ||
|
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| this.ctx.drawImage( | ||
| Runner.imageBdaySprite, | ||
| sourceX, | ||
| sourceY, | ||
| sourceWidth, | ||
| sourceHeight, | ||
| targetX, | ||
| targetY, | ||
| targetWidth, | ||
| targetHeight | ||
| ) | ||
|
|
||
| this.ctx.restore() | ||
| this.ctx.globalAlpha = 1 | ||
| } | ||
|
|
||
| reset() { | ||
| this.hp = HPBar.config.MAX_HP | ||
| this.hpChanged = false | ||
| this.flashTimer = 0 | ||
| this.flashIterations = 0 | ||
|
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| this.update(0, this.hp) | ||
| } | ||
|
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| static config = { | ||
| FLASH_DURATION: 1000 / 4, // 一闪的时间（一次闪动分别两闪：从有到无，从无到有） | ||
| FLASH_ITERATIONS: 3, // 闪动的次数 | ||
| MAX_HP: 3, | ||
| HP_UNIT: 1, | ||
| FADE_SPEED: 0.035 // 淡入淡出的速度 | ||
| } | ||
|
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||
| static dimensions = { | ||
| WIDTH: 28, | ||
| HEIGHT: 26, | ||
| DEST_WIDTH: 30 | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| import HorizonLine from "./HorizonLine" | ||
| import Runner from "./Runner" | ||
| import { IS_HIDPI } from "./varibles" | ||
|
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||
| export default class Mountain { | ||
| canvas!: HTMLCanvasElement | ||
| ctx!: CanvasRenderingContext2D | ||
| spritePos!: Position | ||
| containerWidth = 0 | ||
|
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| xPos = Runner.defaultDimensions.WIDTH | ||
| yPos = 0 | ||
|
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| constructor(canvas: HTMLCanvasElement, spritePos: Position, containerWidth: number) { | ||
| this.canvas = canvas | ||
| this.ctx = canvas.getContext("2d")! | ||
| this.spritePos = spritePos | ||
| this.containerWidth = containerWidth | ||
|
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| this.xPos = containerWidth | ||
| this.yPos = HorizonLine.dimensions.YPOS - Mountain.config.HEIGHT | ||
|
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| this.draw() | ||
| } | ||
|
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| updateXPos(currentPos: number, speed: number) { | ||
| if (currentPos < -Mountain.config.WIDTH) { | ||
| currentPos = this.containerWidth | ||
| } else { | ||
| currentPos -= speed | ||
| } | ||
| return currentPos | ||
| } | ||
|
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| draw() { | ||
| let sourceWidth = Mountain.config.WIDTH | ||
| let sourceHeight = Mountain.config.HEIGHT | ||
| if (IS_HIDPI) { | ||
| sourceWidth *= 2 | ||
| sourceHeight *= 2 | ||
| } | ||
| this.ctx.save() | ||
|
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||
| this.ctx.drawImage( | ||
| Runner.imageBdaySprite, | ||
| this.spritePos.x, | ||
| this.spritePos.y, | ||
| sourceWidth, | ||
| sourceHeight, | ||
| this.xPos, | ||
| this.yPos, | ||
| Mountain.config.WIDTH, | ||
| Mountain.config.HEIGHT | ||
| ) | ||
|
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| this.ctx.restore() | ||
| } | ||
|
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| update() { | ||
| this.xPos = this.updateXPos(this.xPos, Mountain.config.MOUNTAIN_SPEED) | ||
| this.draw() | ||
| } | ||
|
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| reset() { | ||
| this.xPos = this.containerWidth | ||
| this.draw() | ||
| } | ||
|
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| protected isVisible() { | ||
| return this.xPos + Mountain.config.WIDTH > 0 | ||
| } | ||
|
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| static config = { | ||
| WIDTH: 413, | ||
| HEIGHT: 92, | ||
| MOUNTAIN_SPEED: 0.1 | ||
| } | ||
| } |
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