From 45fa74573acc01cc87f4e69cec24ec28a31ee9ec Mon Sep 17 00:00:00 2001
From: Hide_D <hided62@gmail.com>
Date: Wed, 29 Oct 2025 14:58:38 +0000
Subject: [PATCH] feat: VarTurn60

---
 hwe/sammo/VarTurn60.php | 176 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 176 insertions(+)
 create mode 100644 hwe/sammo/VarTurn60.php

diff --git a/hwe/sammo/VarTurn60.php b/hwe/sammo/VarTurn60.php
new file mode 100644
index 00000000..6dcf301e
--- /dev/null
+++ b/hwe/sammo/VarTurn60.php
@@ -0,0 +1,176 @@
+<?php
+
+namespace sammo;
+
+class VarTurn60
+{
+    const MonthAdjustOffset = 2;
+
+    static array $min30ToTurn = [
+        [0, 0, 120],   //00:00 2
+        [0, 30, 120],  //00:30
+        [0, 60, 120],  //01:00
+        [0, 90, 120],  //01:30
+        [1, 0, 120],   //02:00 3
+        [1, 30, 120],  //02:30
+        [1, 60, 120],  //03:00
+        [1, 90, 120],  //03:30
+        [2, 0, 120],   //04:00 4
+        [2, 30, 120],  //04:30
+        [2, 60, 120],  //05:00 
+        [2, 90, 120],  //05:30
+        [3, 0, 60],    //06:00 5
+        [3, 30, 60],   //06:30
+        [4, 0, 60],    //07:00 6
+        [4, 30, 60],   //07:30 
+        [5, 0, 60],    //08:00 7
+        [5, 30, 60],   //08:30 
+        [6, 0, 60],    //09:00 8
+        [6, 30, 60],   //09:30 
+        [7, 0, 60],    //10:00 9
+        [7, 30, 60],   //10:30 
+        [8, 0, 60],    //11:00 10
+        [8, 30, 60],   //11:30 
+        [9, 0, 60],    //12:00 11
+        [9, 30, 60],   //12:30 
+        [10, 0, 60],   //13:00 0(12)
+        [10, 30, 60],  //13:30
+        [11, 0, 60],   //14:00 1(13)
+        [11, 30, 60],  //14:30
+        [12, 0, 60],   //15:00 2(14)
+        [12, 30, 60],  //15:30
+        [13, 0, 60],   //16:00 3(15)
+        [13, 30, 60],  //16:30
+        [14, 0, 60],   //17:00 4(16)
+        [14, 30, 60],  //17:30
+        [15, 0, 60],   //18:00 5(17)
+        [15, 30, 60],  //18:30
+        [16, 0, 30],   //19:00 6(18)
+        [17, 0, 30],   //19:30 7(19)
+        [18, 0, 30],   //20:00 8(20)
+        [19, 0, 30],   //20:30 9(21)
+        [20, 0, 30],   //21:00 10(22)
+        [21, 0, 30],   //21:30 11(23)
+        [22, 0, 60],   //22:00 0
+        [22, 30, 60],  //22:30 
+        [23, 0, 60],   //23:00 1
+        [23, 30, 60],  //23:30
+        //[24, 0, 60],   //24:00 2
+    ];
+
+    static array $turnToHM = [
+        [0, 0, 120], //0
+        [2, 0, 120], //1
+        [4, 0, 120], //2
+        [6, 0, 60],  //3
+        [7, 0, 60],  //4
+        [8, 0, 60],  //5
+        [9, 0, 60],  //6
+        [10, 0, 60], //7
+        [11, 0, 60], //8
+        [12, 0, 60], //9
+        [13, 0, 60], //10
+        [14, 0, 60], //11
+        [15, 0, 60], //12
+        [16, 0, 60], //13
+        [17, 0, 60], //14
+        [18, 0, 60], //15
+        [19, 0, 30], //16
+        [19, 30, 30],//17
+        [20, 0, 30], //18
+        [20, 30, 30],//19
+        [21, 0, 30], //20
+        [21, 30, 30],//21
+        [22, 0, 60], //22
+        [23, 0, 60], //23
+        //[24, 0, 60], //24(?)
+    ];
+
+    function __construct(
+        public \DateTimeImmutable $baseDay,
+        public int $turnIdx, //0~23
+        public float $secOffset, ///turnTerm에 따라 최대치가 30*60, 60*60, 120*60 가변
+    )
+    {
+        
+    }
+
+    static function fromDatetime(\DateTimeInterface $date): self {
+        $baseDay = new \DateTimeImmutable($date->format('Y-m-d'));
+        $totalSec = $date->getTimestamp() - $baseDay->getTimestamp();
+
+        $min30 = intdiv($totalSec, 60 * 30);
+
+        assert($min30 < 48);
+
+        [$turnIdx, $minOffset, ] = static::$min30ToTurn[$min30];
+        
+        $secOffset = $totalSec - 60 * 30 * $min30 + $minOffset * 60;
+        return new static($baseDay, $turnIdx, $secOffset);
+    }
+
+    /// $b - $a 의 턴차
+    static function calcTurnDiff(\DateTimeInterface $a, \DateTimeInterface $b): int{
+        $aObj = static::fromDatetime($a);
+        $bObj = static::fromDatetime($b);
+
+        $resDays = $aObj->baseDay->diff($bObj->baseDay)->days; //놀랍게도 절대값
+        if($aObj->baseDay > $bObj->baseDay){
+            $resDays *= -1;
+        }
+
+        $res = $resDays * 24 + $bObj->turnIdx - $aObj->turnIdx;
+
+        return $res;
+    }
+
+    function cutTurn($withFraction = true): array{
+        [$hour, $minOffset, $turnTerm] = static::$turnToHM[$this->turnIdx];
+        $date = $this->baseDay->add(TimeUtil::secondsToDateInterval(($hour * 60 + $minOffset) * 60));
+        return [TimeUtil::format($date, $withFraction), $turnTerm];
+    }
+
+    function toDateStr($withFraction = true): string{
+        [$hour, $minOffset, ] = static::$turnToHM[$this->turnIdx];
+        $date = $this->baseDay->add(TimeUtil::secondsToDateInterval(($hour * 60 + $minOffset) * 60 + $this->secOffset));
+        return TimeUtil::format($date, $withFraction);
+    }
+
+    function addTurn(int $moreTurn): self{
+        $dayDiff = intdiv($moreTurn, 24);
+        $moreTurn %= 24;
+
+        $nextTurnIdx = $this->turnIdx + $moreTurn;
+        if($nextTurnIdx < 0){
+            $dayDiff -= 1;
+            $nextTurnIdx += 24;
+        }
+        else if($nextTurnIdx >= 24){
+            $dayDiff += 1;
+            $nextTurnIdx -= 24;
+        }
+
+        [, , $oldTurnTerm] = static::$turnToHM[$this->turnIdx];
+        [, , $nextTurnTerm] = static::$turnToHM[$nextTurnIdx];
+
+        $nextSecOffset = $this->secOffset;
+        if($oldTurnTerm != $nextTurnTerm){
+            $nextSecOffset *= $nextTurnTerm;
+            $nextSecOffset /= $oldTurnTerm;
+        }
+
+        if($dayDiff == 0){
+            return new static($this->baseDay, $nextTurnIdx, $nextSecOffset);
+        }
+
+        if($dayDiff > 0){
+            $nextBaseDay = $this->baseDay->add(new \DateInterval("P{$dayDiff}D"));
+        }
+        else{
+            $dayAbsDiff = abs($dayDiff);
+            $nextBaseDay = $this->baseDay->sub(new \DateInterval("P{$dayAbsDiff}D"));
+        }
+        
+        return new static($nextBaseDay, $nextTurnIdx, $nextSecOffset);
+    }
+}