ㄱ자 모양 shape 정의

src/hooks/useMode.js

@@ -353,6 +353,47 @@ export function useMode() {
     // 캔버스에서 모든 라인 객체를 찾습니다.
     const lines = otherLines || historyLines.current
     if (!otherLines) {
+
+      const sortedIndex = getStartIndex(lines)
+      const tmpArraySorted = rearrangeArray(lines, sortedIndex)
+      
+      function findTopTwoIndexesByDistance(objArr) {
+        if (objArr.length < 2) {
+            return []; // 배열의 길이가 2보다 작으면 빈 배열 반환
+        }
+    
+        let firstIndex = -1;
+        let secondIndex = -1;
+        let firstDistance = -Infinity;
+        let secondDistance = -Infinity;
+    
+        for (let i = 0; i < objArr.length; i++) {
+            const distance = objArr[i].length;
+    
+            if (distance > firstDistance) {
+                secondDistance = firstDistance;
+                secondIndex = firstIndex;
+                firstDistance = distance;
+                firstIndex = i;
+            } else if (distance > secondDistance) {
+                secondDistance = distance;
+                secondIndex = i;
+            }
+        }
+    
+        return [firstIndex, secondIndex];
+      }
+
+      const topIndex = findTopTwoIndexesByDistance(tmpArraySorted);
+
+      const shape = 0;
+
+      if(topIndex[0] === 2) {
+        if(topIndex[1] === 3) shape = 1 
+      }else if(topIndex === 1){
+        if(topIndex[1] === 2) shape = 4 
+      }
+      
       historyLines.current = []
     }