Rengöring

1 files changed, 38 insertions, 0 deletions

diff --git a/src/keyboard.js b/src/keyboard.js
new file mode 100644
index 0000000..8f9b12d
--- /dev/null
+++ b/src/keyboard.js
@@ -0,0 +1,38 @@
+function keyboard(keyCode) {
+  var key = {};
+  key.code = keyCode;
+  key.isDown = false;
+  key.isUp = true;
+  key.press = undefined;
+  key.release = undefined;
+  //The `downHandler`
+  key.downHandler = function(event) {
+    if (event.keyCode === key.code) {
+      if (key.isUp && key.press) key.press();
+      key.isDown = true;
+      key.isUp = false;
+    }
+    event.preventDefault();
+  };
+
+  //The `upHandler`
+  key.upHandler = function(event) {
+    if (event.keyCode === key.code) {
+      if (key.isDown && key.release) key.release();
+      key.isDown = false;
+      key.isUp = true;
+    }
+    event.preventDefault();
+  };
+
+  //Attach event listeners
+  window.addEventListener(
+    "keydown", key.downHandler.bind(key), false
+  );
+  window.addEventListener(
+    "keyup", key.upHandler.bind(key), false
+  );
+  return key;
+}
+
+var k_space = keyboard(32) // space bar