Updated README.

README.md

@@ -2,20 +2,15 @@
 
 This project is a demo for a websocket-based rollback netcode inspired by [GGPO](https://github.com/pond3r/ggpo/blob/master/doc/README.md). 
 
+[Demo recorded over INTERNET (Phone-Wifi v.s. PC-Wifi UDP holepunched) using an input delay of 6 frames](https://pan.baidu.com/s/1UArwqDShLoPjYppjjqsTqQ?pwd=10wc), and it feels SMOOTH when playing!
+
+![Merged_cut_annotated_spedup](./charts/Merged_cut_annotated_spedup.gif)
+
 As lots of feedbacks ask for a discussion on using UDP instead, I tried to summarize my personal opinion about it in [ConcerningEdgeCases](./ConcerningEdgeCases.md) -- **since v0.9.25, the project is actually equipped with UDP capabilities as follows**.
 - When using the so called `native apps` on `Android` and `Windows` (I'm working casually hard to support `iOS` next), the frontends will try to use UDP hole-punching w/ the help of backend as a registry. If UDP hole-punching is working, the rollback is often less than `turn-around frames to recover` and thus not noticeable, being much better than using websocket alone. This video shows how the UDP holepunched p2p performs for [Phone-Wifi v.s. PC-Wifi (viewed by PC side)](https://pan.baidu.com/s/1K6704bJKlrSBTVqGcXhajA?pwd=l7ok).
 - If UDP hole-punching is not working, e.g. for Symmetric NAT like in 4G/5G cellular network, the frontends will use backend as a UDP tunnel (or relay, whatever you like to call it). This video shows how the UDP tunnel performs for [Phone-4G v.s. PC-Wifi (viewed by PC side)](https://pan.baidu.com/s/1IZVa5wVgAdeH6D-xsZYFUw?pwd=dgkj). 
 - Browser vs `native app` is possible but in that case only websocket is used.
 
-The following video is recorded over INTERNET using an input delay of 4 frames and it feels SMOOTH when playing! Please also checkout these demo videos
-- [source video of the first gif (earlier version)](https://pan.baidu.com/s/1ML6hNupaPHPJRd5rcTvQvw?pwd=8ruc) 
-- [source video of the second gif (added turn-around optimization & dashing)](https://pan.baidu.com/s/1isMcLvxax4NNkDgitV_FDg?pwd=s1i6) 
-
-to see how this demo carries out a full 60fps synchronization with the help of _batched input upsync/downsync_ for satisfying network I/O performance.
-
-![gif_demo_1](./charts/internet_fireball_explosion_wallmove_spedup.gif)
-
-![gif_demo_2](./charts/internet_dash_turnaround_cut_spedup.gif)
 
 # Notable Features
 - Backend dynamics toggle via [Room.BackendDynamicsEnabled](https://github.com/genxium/DelayNoMore/blob/v0.9.14/battle_srv/models/room.go#L786)

frontend/assets/scenes/offline_map.fire

@@ -547,7 +547,7 @@
       "array": [
         0,
         0,
-        209.73151519075364,
+        210.27555739078596,
         0,
         0,
         0,
@@ -2313,7 +2313,7 @@
     "mapNode": {
       "__id__": 3
     },
-    "speed": 5000,
+    "speed": 500,
     "_id": "76ImpM7XtPSbiLHDXdsJa+"
   },
   {

frontend/assets/scripts/CameraTracker.js

@@ -8,7 +8,7 @@ cc.Class({
     },
     speed: {
       type: cc.Float,
-      default: 500
+      default: 100
     },
   },
 

frontend/assets/scripts/modules/jsexport.js.meta

@@ -1,6 +1,6 @@
 {
   "ver": "1.0.5",
-  "uuid": "40edd08e-316c-44b8-a50f-bd173554c554",
+  "uuid": "22e2b0ab-1350-4f5e-9960-f2b45b0bf353",
   "isPlugin": false,
   "loadPluginInWeb": true,
   "loadPluginInNative": true,

jsexport/battle/battle.go

@@ -30,6 +30,7 @@ const (
 	SNAP_INTO_PLATFORM_OVERLAP   = float64(0.1)
 	SNAP_INTO_PLATFORM_THRESHOLD = float64(0.5)
 	VERTICAL_PLATFORM_THRESHOLD  = float64(0.9)
+	MAGIC_FRAMES_TO_BE_ONWALL    = int32(12)
 
 	NO_SKILL     = -1
 	NO_SKILL_HIT = -1
@@ -939,11 +940,6 @@ func ApplyInputFrameDownsyncDynamicsOnSingleRenderFrame(inputsBuffer *RingBuffer
 							break
 						}
 					}
-
-					if !currPlayerDownsync.OnWall && thatPlayerInNextFrame.OnWall {
-						// To avoid mysterious climbing up the wall after sticking on it
-						thatPlayerInNextFrame.VelY = 0
-					}
 				}
 			}
 			if !thatPlayerInNextFrame.OnWall {
@@ -1071,9 +1067,7 @@ func ApplyInputFrameDownsyncDynamicsOnSingleRenderFrame(inputsBuffer *RingBuffer
 			oldNextCharacterState := thatPlayerInNextFrame.CharacterState
 			switch oldNextCharacterState {
 			case ATK_CHARACTER_STATE_IDLE1, ATK_CHARACTER_STATE_WALKING, ATK_CHARACTER_STATE_TURNAROUND:
-				if thatPlayerInNextFrame.OnWall {
+				if jumpedOrNotList[i] || ATK_CHARACTER_STATE_INAIR_IDLE1_BY_JUMP == currPlayerDownsync.CharacterState {
-					thatPlayerInNextFrame.CharacterState = ATK_CHARACTER_STATE_ONWALL
-				} else if jumpedOrNotList[i] || ATK_CHARACTER_STATE_INAIR_IDLE1_BY_JUMP == currPlayerDownsync.CharacterState {
 					thatPlayerInNextFrame.CharacterState = ATK_CHARACTER_STATE_INAIR_IDLE1_BY_JUMP
 				} else {
 					thatPlayerInNextFrame.CharacterState = ATK_CHARACTER_STATE_INAIR_IDLE1_NO_JUMP
@@ -1086,6 +1080,17 @@ func ApplyInputFrameDownsyncDynamicsOnSingleRenderFrame(inputsBuffer *RingBuffer
 			}
 		}
 
+		if thatPlayerInNextFrame.OnWall {
+			switch thatPlayerInNextFrame.CharacterState {
+			case ATK_CHARACTER_STATE_WALKING, ATK_CHARACTER_STATE_INAIR_IDLE1_BY_JUMP, ATK_CHARACTER_STATE_INAIR_IDLE1_NO_JUMP:
+				hasBeenOnWallChState := (ATK_CHARACTER_STATE_ONWALL == currPlayerDownsync.CharacterState)
+				hasBeenOnWallCollisionResultForSameChState := (currPlayerDownsync.OnWall && MAGIC_FRAMES_TO_BE_ONWALL <= thatPlayerInNextFrame.FramesInChState)
+				if hasBeenOnWallChState || hasBeenOnWallCollisionResultForSameChState {
+					thatPlayerInNextFrame.CharacterState = ATK_CHARACTER_STATE_ONWALL
+				}
+			}
+		}
+
 		// Reset "FramesInChState" if "CharacterState" is changed
 		if thatPlayerInNextFrame.CharacterState != currPlayerDownsync.CharacterState {
 			thatPlayerInNextFrame.FramesInChState = 0