add: composite

readme.md

@@ -17,7 +17,7 @@ npm i git+ssh://git@gitlab2.dui88.com:lufei/moto.git
 
 ## 文档
 ```js
-import {curve, tween, easing} from 'moto'
+import {curve, tween, easing, composite, utils} from 'moto'
 
 // 二次贝塞尔曲线
 curve.bezier({
@@ -61,6 +61,22 @@ const anime = tween({
 })
 
 setTimeout(() => anime.stop(), 2e3)
+
+// 组合模式
+composite({
+  position: curve.bezier({
+    p1: {x: 0, y: 0},
+    p2: {x: 50, y: 50},
+    p3: {x: 100, y: 0},
+    duration: 1,
+    ease: easing.easeInOut
+  }),
+  scale: tween({from: 1, to: 2}),
+  color: tween({from: utils.hex2rgb(0xff33cc), to: utils.hex2rgb(0xffcc33)})
+}).start(v => {
+  const {position, scale, color} = v
+  //...
+})
 ```
 
 **`curve.bezier(options)`**
@@ -72,6 +88,16 @@ options`{object}`:
   - duration: 动画持续时间(单位：`s`)，默认 `1`
   - ease: 时间函数，默认 `easing.linear`
 
+**`curve.cubicBezier(options)`**
+
+options`{object}`:
+  - p1: 起始点 `{x, y}`
+  - p2: 控制点 `{x, y}`
+  - p3: 控制点 `{x, y}`
+  - p4: 结束点 `{x, y}`
+  - duration: 动画持续时间(单位：`s`)，默认 `1`
+  - ease: 时间函数，默认 `easing.linear`
+
 **`curve.catmullRom(points, [v])`**
 
 - points: 路径点数组 `[{x, y}...]`
@@ -86,10 +112,20 @@ options`{object}`:
   - duration: 动画持续时间(单位：`s`)，默认 `1`
   - ease: 时间函数，默认 `easing.linear`
 
+**`composite(options)`**
+
+options`{object}`:
+  - 键值`{string}`: 动画`{tween || curve}`
+
+
 以上函数都返回一个`object`:
 
 **`start({function} || {object})`**
- - update:
-   - v: 当前值
- - complete:
+  - `update(v)`:
+    - `v`: 当前值
+  - `complete()`: 结束回调
+
+
+**`start()`** 返回一个`object`:
+  - `stop()`: 结束动画
 

src/app.js

-import {curve, easing, tween} from './core'
+import {curve, easing, tween, composite, utils} from './core'
 
 HTMLElement.prototype.on = function(...args) {
     this.addEventListener(...args)
@@ -32,7 +32,7 @@ document.body.on('pointerdown', ev => {
     }
 })
 
-async function run(action) {
+function run(action) {
     const dots = document.querySelectorAll('.dot')
 
     document.querySelectorAll('.mini-dot').forEach(child => child.remove())
@@ -41,13 +41,30 @@ async function run(action) {
     if (action === 'bezier') {
         if (dots.length < 2) return alert('至少 2 个点！')
         const points = Array.prototype.map.call(dots, dot => JSON.parse(dot.dataset.position))
-        curve.bezier({
+
+        composite({
+            position: curve.bezier({
                 p1: {x: player.offsetLeft, y: player.offsetTop},
                 p2: points[0],
                 p3: points[1],
                 duration: 1,
                 ease: easing.easeInOut
-        }).start(trace)
+            }),
+            scale: tween({from: 1, to: 2}),
+            color: tween({from: utils.hex2rgb(0xff33cc), to: utils.hex2rgb(0xffcc33)})
+        }).start(v => {
+            player.style.left = `${v.position.x}px`
+            player.style.top = `${v.position.y}px`
+            player.style.backgroundColor = utils.rgb2hex(v.color)
+            player.style.transform = `translate(-50%, -50%) scale(${v.scale})`
+
+            const dot = document.createElement('i')
+            dot.classList.add('mini-dot')
+            dot.style.left = player.style.left
+            dot.style.top = player.style.top
+            document.body.appendChild(dot)
+        })
+
     } else if (action === 'cubicBezier') {
         if (dots.length < 3) return alert('至少 3 个点！')
         const points = Array.prototype.map.call(dots, dot => JSON.parse(dot.dataset.position))
@@ -64,7 +81,7 @@ async function run(action) {
 
         const points = Array.prototype.map.call(dots, dot => JSON.parse(dot.dataset.position))
         points.unshift({x: player.offsetLeft, y: player.offsetTop})
-        curve.catmullRom(points).start(trace)
+        curve.catmullRom(points, 10).start(trace)
     } else if (action === 'tween') {
         if (dots.length < 1) return alert('至少 1 个点！')
 
@@ -102,3 +119,9 @@ function clear() {
 function distance(a, b) {
     return Math.sqrt((a.x - b.x) ** 2 + (a.y - b.y) ** 2)
 }
+
+function hex2string(hex) {
+    hex = hex.toString(16)
+    hex = '000000'.substr(0, 6 - hex.length) + hex
+    return `#${hex}`
+}
\ No newline at end of file

src/core/composite.js

+export default function(action) {
+    const keys = Object.keys(action)
+
+    function start(option) {
+        const result = {}
+        let update, complete, total = {start: 0, end: 0}
+
+        if (option instanceof Function) update = option
+        else ({update, complete} = option)
+
+        const animes = keys.map(key => {
+            total.start++
+            return action[key].start({
+                update: v => {
+                    result[key] = v
+                    total.start === keys.length && update(result)
+                },
+
+                complete: () => {
+                    total.end++
+                    total.end === keys.length && complete && complete()
+                }
+            })
+        })
+
+        return {
+            stop() {
+                animes.forEach(anime => anime.stop())
+            }
+        }
+    }
+
+    return {start}
+}
\ No newline at end of file

src/core/index.js

 export * as easing from './easing'
 export * as curve from './curve'
 export tween from './tween'
+export composite from './composite'
+export * as utils from './utils'

src/core/tween.js

@@ -6,8 +6,7 @@ export default function(option) {
     function start(option) {
         const complex = isNaN(from)
 
-        let update, complete, id, delta, result,
-            t = 0
+        let update, complete, id, delta, result, t = 0
 
         complex ? (delta = {}, result = {}, Object.keys(from).forEach(key => {
             delta[key] = to[key] - from[key]
@@ -19,9 +18,11 @@ export default function(option) {
         !function loop() {
             t += 1 / 60 / duration
             t > 1 ? t = 1 : null
+
             if (complex) for (const key in delta) {
                 result[key] = from[key] + delta[key] * ease(t)
             } else result = from + delta * ease(t)
+
             update(result)
             t === 1 ? complete && complete() : id = requestAnimationFrame(loop)
         }()

src/core/utils/index.js

+export function hex2rgb(hex) {
+    return {
+        r: (hex >> 16) & 0xff,
+        g: (hex >> 8) & 0xff,
+        b: hex & 0xff,
+    }
+}
+
+export function rgb2hex(color) {
+    color = ((color.r << 16) + (color.g << 8) + (color.b | 0)).toString(16)
+    return `#${'000000'.substring(0, 6 - color.length)}${color}`
+}
\ No newline at end of file