From d1df87ce04f6d79fed94ab154fa098ccc83ebab8 Mon Sep 17 00:00:00 2001
From: Kelly Rauchenberger <fefferburbia@gmail.com>
Date: Sat, 30 Jan 2021 16:15:55 -0500
Subject: Added crouching/running

---
 src/direction.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'src/direction.h')

diff --git a/src/direction.h b/src/direction.h
index 0679a00..ebc0e46 100644
--- a/src/direction.h
+++ b/src/direction.h
@@ -3,6 +3,7 @@
 
 #include <string>
 #include <stdexcept>
+#include "vector.h"
 
 enum class Direction {
   up,
@@ -27,4 +28,17 @@ inline Direction directionFromString(std::string_view str) {
   throw std::invalid_argument("Invalid direction: " + std::string(str));
 }
 
+inline vec2i unitVecInDirection(Direction dir) {
+  switch (dir) {
+    case Direction::up: return { 0, -1 };
+    case Direction::up_right: return { 1, -1 };
+    case Direction::right: return { 1, 0 };
+    case Direction::down_right: return { 1, 1 };
+    case Direction::down: return { 0, 1 };
+    case Direction::down_left: return { -1, 1 };
+    case Direction::left: return { -1, 0 };
+    case Direction::up_left: return { -1, -1 };
+  }
+}
+
 #endif /* end of include guard: DIRECTION_H_AB66A90E */
-- 
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