Initial commit

src/Spinner.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace NoccyLabs\Spinner;
+
+
+class Spinner
+{
+    private static $defaultStyle = Style\BrailleDotsStyle::class;
+
+    private static $defaultFps = 10;
+
+    private array $frames = [];
+
+    private int $frame = 0;
+
+    private float $lastAdvance = 0;
+
+    private float $advanceIv = 0;
+
+    public static function setDefaultStyle(string $class)
+    {
+        $inst = new $class;
+        if (!($inst instanceof Style\StyleInterface)) {
+            throw new \DomainException();
+        }
+        self::$defaultStyle = $class;
+    }
+
+    public function __construct(?string $style=null, ?int $fps=null)
+    {
+        $style = $style??self::$defaultStyle;
+        $fps = $fps??self::$defaultFps;
+
+        $this->advanceIv = 1.0 / $fps;
+
+        $style = new $style();
+        $this->frames = $style->getFrames();
+    }
+
+    public function __toString()
+    {
+        $now = microtime(true);
+        if ($this->lastAdvance + $this->advanceIv < $now) {
+            $this->frame = ($this->frame + 1) % count($this->frames);
+            $this->lastAdvance = $now;
+        }
+        return $this->frames[$this->frame];
+    }
+}

src/Style/BrailleDotsStyle.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace NoccyLabs\Spinner\Style;
+
+class BrailleDotsStyle implements StyleInterface
+{
+    public function getFrames(): array
+    {
+        return [
+            mb_chr(0x2839),
+            mb_chr(0x283c),
+            mb_chr(0x2836),
+            mb_chr(0x2827),
+            mb_chr(0x280f),
+            mb_chr(0x281b),
+        ];
+    }
+}

src/Style/RollingBallStyle.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace NoccyLabs\Spinner\Style;
+
+class RollingBallStyle implements StyleInterface
+{
+    public function getFrames(): array
+    {
+        return [
+            mb_chr(0x25d0),
+            mb_chr(0x25d3),
+            mb_chr(0x25d1),
+            mb_chr(0x25d2),
+        ];
+    }
+}

src/Style/SpinnerStyle.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace NoccyLabs\Spinner\Style;
+
+class SpinnerStyle implements StyleInterface
+{
+    public function getFrames(): array
+    {
+        return [
+            mb_chr(0x25dc).' ',
+            ' '.mb_chr(0x25dd),
+            ' '.mb_chr(0x25de),
+            mb_chr(0x25df).' ',
+        ];
+    }
+}

src/Style/StyleInterface.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace NoccyLabs\Spinner\Style;
+
+interface StyleInterface
+{
+    public function getFrames(): array;
+}