eyes follow cursor

1 files changed, 43 insertions, 0 deletions

diff --git a/src/engine/config/constants.ts b/src/engine/config/constants.ts
index a00a141..c2cbc76 100644
--- a/src/engine/config/constants.ts
+++ b/src/engine/config/constants.ts
@@ -1,3 +1,46 @@
+export enum Action {
+  MOVE_LEFT,
+  MOVE_RIGHT,
+  MOVE_UP,
+  MOVE_DOWN,
+  RESET,
+  INTERACT,
+}
+
+export namespace KeyConstants {
+  export const KeyActions: Record<string, Action> = {
+    a: Action.MOVE_LEFT,
+    arrowleft: Action.MOVE_LEFT,
+
+    d: Action.MOVE_RIGHT,
+    arrowright: Action.MOVE_RIGHT,
+
+    w: Action.MOVE_UP,
+    arrowup: Action.MOVE_UP,
+
+    s: Action.MOVE_DOWN,
+    arrowdown: Action.MOVE_DOWN,
+
+    " ": Action.INTERACT,
+    enter: Action.INTERACT,
+  };
+
+  // value -> [key] from KeyActions
+  export const ActionKeys: Map<Action, string[]> = Object.keys(
+    KeyActions,
+  ).reduce((acc: Map<Action, string[]>, key) => {
+    const action = KeyActions[key.toLowerCase()];
+
+    if (acc.has(action)) {
+      acc.get(action)!.push(key);
+      return acc;
+    }
+
+    acc.set(action, [key]);
+    return acc;
+  }, new Map());
+}
+
 export namespace Miscellaneous {
   export const WIDTH = 800;
   export const HEIGHT = 800;