📌feat: Add Function calculateFlowDirection

src/util/common-utils.js

@@ -99,4 +99,21 @@ export const inputNumberCheck = (e) => {
  * @param  {...any} fns 순수함수들
  * @returns
  */
-export const pipe = (...fns) => (x) => fns.reduce((v, f) => f(v), x)
+export const pipe =
+  (...fns) =>
+  (x) =>
+    fns.reduce((v, f) => f(v), x)
+
+/**
+ * 캔버스 각도에 따른 흐름 방향 계산
+ * @param {number} canvasAngle
+ * @returns {object} 흐름 방향 객체
+ */
+export const calculateFlowDirection = (canvasAngle) => {
+  return {
+    down: -canvasAngle,
+    up: 180 - canvasAngle,
+    left: 90 - canvasAngle,
+    right: -90 - canvasAngle,
+  }
+}