1 files changed, 25 insertions, 0 deletions
diff --git a/src/direction.cpp b/src/direction.cpp
new file mode 100644
index 0000000..cf6409e
--- /dev/null
+++ b/src/direction.cpp

@@ -0,0 +1,25 @@
+#include "direction.h"
+vec2s posInDir(vec2s orig, Direction dir)
+{
+  switch (dir)
+  {
+    case Direction::left: return orig - vec2s { 1, 0 };
+    case Direction::right: return orig + vec2s { 1, 0 };
+    case Direction::up: return orig - vec2s { 0, 1 };
+    case Direction::down: return orig + vec2s { 0, 1 };
+    case Direction::none: return orig;
+  }
+}
+Direction oppositeDir(Direction dir)
+{
+  switch (dir)
+  {
+    case Direction::left: return Direction::right;
+    case Direction::right: return Direction::left;
+    case Direction::up: return Direction::down;
+    case Direction::down: return Direction::up;
+    case Direction::none: return Direction::none;
+  }
+}

diff --git a/src/direction.cpp b/src/direction.cpp new file mode 100644 index 0000000..cf6409e --- /dev/null +++ b/src/direction.cpp
@@ -0,0 +1,25 @@
	1	#include "direction.h"
	2
	3	vec2s posInDir(vec2s orig, Direction dir)
	4	{
	5	switch (dir)
	6	{
	7	case Direction::left: return orig - vec2s { 1, 0 };
	8	case Direction::right: return orig + vec2s { 1, 0 };
	9	case Direction::up: return orig - vec2s { 0, 1 };
	10	case Direction::down: return orig + vec2s { 0, 1 };
	11	case Direction::none: return orig;
	12	}
	13	}
	14
	15	Direction oppositeDir(Direction dir)
	16	{
	17	switch (dir)
	18	{
	19	case Direction::left: return Direction::right;
	20	case Direction::right: return Direction::left;
	21	case Direction::up: return Direction::down;
	22	case Direction::down: return Direction::up;
	23	case Direction::none: return Direction::none;
	24	}
	25	}