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Easing Box
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| height: 500 |
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| <script async src=https://cdn.JsDelivr.net/npm/p5></script> | |
| <script defer src=sketch.js></script> |
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| /** | |
| * Easing Box (v2.2) | |
| * Author: MsKelly (2016-Oct-04) | |
| * Mod: GoToLoop | |
| * | |
| * forum.Processing.org/two/discussion/18404/ | |
| * processing-code-doesn-t-work-in-p5#Item_6 | |
| * | |
| * p5js.SketchPad.cc/sp/pad/view/ro.CQ494WRivD81VV/latest | |
| * Bl.ocks.org/GoSubRoutine/dc44acdaa0f05c1402ea33bd60a69da4 | |
| */ | |
| "use strict"; | |
| const EASING = .05, LIMIT = .1, | |
| RAD = 15, EDGE = 50, | |
| INNER = EDGE + RAD; | |
| let mx = INNER, my = INNER, | |
| iw, ih, ew, eh, | |
| boxCol, ballCol; | |
| function setup() { | |
| createCanvas(400, 500); | |
| ellipseMode(RADIUS).rectMode(CORNERS); | |
| noStroke().background(0); | |
| iw = width - INNER, ih = height - INNER; | |
| ew = width - EDGE, eh = height - EDGE; | |
| boxCol = color(196, 239, 234); | |
| ballCol = color(146, 140, 211); | |
| } | |
| function draw() { | |
| const dx = mouseX - mx, dy = mouseY - my; | |
| if (abs(dx) > LIMIT) mx = constrain(mx + dx*EASING, INNER, iw); | |
| if (abs(dy) > LIMIT) my = constrain(my + dy*EASING, INNER, ih); | |
| fill(boxCol).rect(EDGE, EDGE, ew, eh); | |
| fill(ballCol).ellipse(mx, my, RAD, RAD); | |
| } |
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