From 84b003379043d2aaea7945d32d4ac2d096b5b953 Mon Sep 17 00:00:00 2001
From: falsycat <me@falsy.cat>
Date: Sat, 5 Oct 2019 00:00:00 +0000
Subject: [PATCH] [add] Added ElementInterface.

---
 sjplayer/src/sjplayer/ElementInterface.d | 26 ++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 sjplayer/src/sjplayer/ElementInterface.d

diff --git a/sjplayer/src/sjplayer/ElementInterface.d b/sjplayer/src/sjplayer/ElementInterface.d
new file mode 100644
index 0000000..5ed8a58
--- /dev/null
+++ b/sjplayer/src/sjplayer/ElementInterface.d
@@ -0,0 +1,26 @@
+/// License: MIT
+module sjplayer.ElementInterface;
+
+import gl4d;
+
+///
+interface ElementInterface {
+ public:
+  ///
+  static struct DamageCalculationResult {
+    /// An amount of the damage. (0~1)
+    float damage;
+    /// A nearness of the point. (0~1)
+    float nearness;
+  }
+
+  ///
+  DamageCalculationResult CalculateDamage(vec2 p1, vec2 p2) const;
+}
+
+///
+interface ElementDrawerInterface {
+ public:
+  ///
+  void Draw();
+}