From 708fa4e9ab5fe83998fdc5b8de2d81db39df4f51 Mon Sep 17 00:00:00 2001
From: Tomas Horsky <tomashorsky@kaist.ac.kr>
Date: Wed, 29 Apr 2026 19:27:19 +0900
Subject: [PATCH] optimazed version

---
 src/game/cameraControl.js | 37 +++++++++++++++++++------------------
 1 file changed, 19 insertions(+), 18 deletions(-)

diff --git a/src/game/cameraControl.js b/src/game/cameraControl.js
index 22f5265..e896ebc 100644
--- a/src/game/cameraControl.js
+++ b/src/game/cameraControl.js
@@ -10,12 +10,12 @@ export const cameraInput = {
 
 let video;
 let faceDetector;
-let smoothedX = 0.5;
 
-// 🔥 TWEAK THESE FOR FEEL:
-const SMOOTHING_FACTOR = 0.6; // Higher = more responsive/less lag (try 0.5 - 0.8)
-const LEFT_THRESHOLD = 0.45;  // Closer to 0.5 = smaller center zone
-const RIGHT_THRESHOLD = 0.55; // Closer to 0.5 = smaller center zone
+// 🔥 NARROW CENTER ZONE:
+// 0.48 and 0.52 means the center is only 4% of the screen width.
+// Adjust these if it's still too hard to trigger movement.
+const LEFT_THRESHOLD = 0.48;  
+const RIGHT_THRESHOLD = 0.52; 
 
 export async function initCameraControl() {
   if (cameraInput.active) return video;
@@ -26,7 +26,11 @@ export async function initCameraControl() {
   video.muted = true;
 
   const stream = await navigator.mediaDevices.getUserMedia({
-    video: { width: 160, height: 120, frameRate: 15 }
+    video: { 
+      width: 160, 
+      height: 120, 
+      frameRate: { ideal: 20 } // Slightly higher for faster reaction
+    }
   });
 
   video.srcObject = stream;
@@ -57,23 +61,20 @@ function startDetectionLoop() {
 
     if (result.detections.length > 0) {
       const box = result.detections[0].boundingBox;
-      const centerX = box.originX + box.width / 2;
-      const normalizedX = centerX / 160;
+      // Calculate raw center point (0 to 1)
+      const rawX = (box.originX + box.width / 2) / 160;
+      
+      cameraInput.x = rawX;
 
-      // Snappier smoothing
-      smoothedX += (normalizedX - smoothedX) * SMOOTHING_FACTOR;
-      cameraInput.x = smoothedX;
-
-      // Updated Logic with smaller center zone
-      if (smoothedX < LEFT_THRESHOLD) {
-        updateZones(false, true, 'right'); // Mirrored
-      } else if (smoothedX > RIGHT_THRESHOLD) {
-        updateZones(true, false, 'left');  // Mirrored
+      // INSTANT LOGIC (No smoothing)
+      if (rawX < LEFT_THRESHOLD) {
+        updateZones(false, true, 'right'); // Mirrored: Face on left of cam = move right
+      } else if (rawX > RIGHT_THRESHOLD) {
+        updateZones(true, false, 'left');  // Mirrored: Face on right of cam = move left
       } else {
         updateZones(false, false, 'center');
       }
     } else {
-      // Snap to center if face is lost
       updateZones(false, false, 'center');
     }