1 files changed, 24 insertions, 0 deletions
diff --git a/src/glfw/key_watcher.cc b/src/glfw/key_watcher.cc
new file mode 100644
index 0000000..21a570a
--- /dev/null
+++ b/src/glfw/key_watcher.cc
@@ -0,0 +1,24 @@
+#include "key_watcher.h"
+
+KeyWatcher::KeyWatcher(GLFWwindow* handle, int key):
+	_handle(handle),
+	_key(key),
+	_last_state(glfwGetKey(_handle, _key))
+{ }
+
+bool KeyWatcher::wasClicked() {
+	switch ( glfwGetKey(_handle, _key) ) {
+		case GLFW_RELEASE:
+			_last_state = GLFW_RELEASE;
+			return false;
+		case GLFW_PRESS:
+			if ( _last_state == GLFW_RELEASE ) {
+				_last_state = GLFW_PRESS;
+				return true;
+			} else {
+				return false;
+			}
+		default:
+			return false;
+	}
+}