From 8c36739ebd346f3a52e89978f4dcf657841b61da Mon Sep 17 00:00:00 2001
From: Kumar <36933347+rav4kumar@users.noreply.github.com>
Date: Fri, 23 Jan 2026 21:27:12 -0700
Subject: [PATCH] [TIZI/TICI] ui: Rocket Fuel (#1337)

* rocket

* raylib

* extra

---------

Co-authored-by: Jason Wen <haibin.wen3@gmail.com>
---
 common/params_keys.h                          |  1 +
 .../ui/sunnypilot/onroad/hud_renderer.py      |  5 +++
 selfdrive/ui/sunnypilot/onroad/rocket_fuel.py | 45 +++++++++++++++++++
 selfdrive/ui/sunnypilot/ui_state.py           |  1 +
 sunnypilot/sunnylink/params_metadata.json     |  4 ++
 5 files changed, 56 insertions(+)
 create mode 100644 selfdrive/ui/sunnypilot/onroad/rocket_fuel.py

diff --git a/common/params_keys.h b/common/params_keys.h
index e04211392..ecc656cc7 100644
--- a/common/params_keys.h
+++ b/common/params_keys.h
@@ -173,6 +173,7 @@ inline static std::unordered_map<std::string, ParamKeyAttributes> keys = {
     {"QuickBootToggle", {PERSISTENT | BACKUP, BOOL, "0"}},
     {"QuietMode", {PERSISTENT | BACKUP, BOOL, "0"}},
     {"RainbowMode", {PERSISTENT | BACKUP, BOOL, "0"}},
+    {"RocketFuel", {PERSISTENT | BACKUP, BOOL, "0"}},
     {"ShowAdvancedControls", {PERSISTENT | BACKUP, BOOL, "0"}},
     {"ShowTurnSignals", {PERSISTENT | BACKUP, BOOL, "0"}},
     {"StandstillTimer", {PERSISTENT | BACKUP, BOOL, "0"}},
diff --git a/selfdrive/ui/sunnypilot/onroad/hud_renderer.py b/selfdrive/ui/sunnypilot/onroad/hud_renderer.py
index 33582df19..9a29a97b9 100644
--- a/selfdrive/ui/sunnypilot/onroad/hud_renderer.py
+++ b/selfdrive/ui/sunnypilot/onroad/hud_renderer.py
@@ -6,15 +6,20 @@ See the LICENSE.md file in the root directory for more details.
 """
 import pyray as rl
 
+from openpilot.selfdrive.ui.ui_state import ui_state
 from openpilot.selfdrive.ui.onroad.hud_renderer import HudRenderer
 from openpilot.selfdrive.ui.sunnypilot.onroad.developer_ui import DeveloperUiRenderer
+from openpilot.selfdrive.ui.sunnypilot.onroad.rocket_fuel import RocketFuel
 
 
 class HudRendererSP(HudRenderer):
   def __init__(self):
     super().__init__()
     self.developer_ui = DeveloperUiRenderer()
+    self.rocket_fuel = RocketFuel()
 
   def _render(self, rect: rl.Rectangle) -> None:
     super()._render(rect)
     self.developer_ui.render(rect)
+    if ui_state.rocket_fuel:
+      self.rocket_fuel.render(rect, ui_state.sm)
diff --git a/selfdrive/ui/sunnypilot/onroad/rocket_fuel.py b/selfdrive/ui/sunnypilot/onroad/rocket_fuel.py
new file mode 100644
index 000000000..af25711a9
--- /dev/null
+++ b/selfdrive/ui/sunnypilot/onroad/rocket_fuel.py
@@ -0,0 +1,45 @@
+"""
+Copyright (c) 2021-, Haibin Wen, sunnypilot, and a number of other contributors.
+
+This file is part of sunnypilot and is licensed under the MIT License.
+See the LICENSE.md file in the root directory for more details.
+"""
+import pyray as rl
+
+
+class RocketFuel:
+  def __init__(self):
+    self.vc_accel = 0.0
+
+  def render(self, rect: rl.Rectangle, sm) -> None:
+    vc_accel0 = sm['carState'].aEgo
+
+    # Smooth the acceleration
+    self.vc_accel = self.vc_accel + (vc_accel0 - self.vc_accel) / 5.0
+
+    hha = 0.0
+    color = rl.Color(0, 0, 0, 0)  # Transparent by default
+
+    if self.vc_accel > 0:
+      hha = 0.85 - 0.1 / self.vc_accel  # only extend up to 85%
+      color = rl.Color(0, 245, 0, 200)
+    elif self.vc_accel < 0:
+      hha = 0.85 + 0.1 / self.vc_accel  # only extend up to 85%
+      color = rl.Color(245, 0, 0, 200)
+
+    if hha < 0:
+      hha = 0.0
+
+    hha = hha * rect.height
+    wp = 28.0
+
+    # Draw
+    rect_h = rect.height
+
+    if self.vc_accel > 0:
+      ra_y = rect_h / 2.0 - hha / 2.0
+    else:
+      ra_y = rect_h / 2.0
+
+    if hha > 0:
+      rl.draw_rectangle(int(rect.x), int(rect.y + ra_y), int(wp), int(hha / 2.0), color)
diff --git a/selfdrive/ui/sunnypilot/ui_state.py b/selfdrive/ui/sunnypilot/ui_state.py
index 2644c157a..9ef4e1d7c 100644
--- a/selfdrive/ui/sunnypilot/ui_state.py
+++ b/selfdrive/ui/sunnypilot/ui_state.py
@@ -122,6 +122,7 @@ class UIStateSP:
       self.CP_SP = messaging.log_from_bytes(CP_SP_bytes, custom.CarParamsSP)
     self.sunnylink_enabled = self.params.get_bool("SunnylinkEnabled")
     self.developer_ui = self.params.get("DevUIInfo")
+    self.rocket_fuel = self.params.get_bool("RocketFuel")
     self.rainbow_path = self.params.get_bool("RainbowMode")
     self.chevron_metrics = self.params.get("ChevronInfo")
     self.active_bundle = self.params.get("ModelManager_ActiveBundle")
diff --git a/sunnypilot/sunnylink/params_metadata.json b/sunnypilot/sunnylink/params_metadata.json
index e4390586b..7f597a962 100644
--- a/sunnypilot/sunnylink/params_metadata.json
+++ b/sunnypilot/sunnylink/params_metadata.json
@@ -1082,6 +1082,10 @@
     "title": "Display Road Name",
     "description": ""
   },
+  "RocketFuel": {
+    "title": "Display Rocket Fuel Bar",
+    "description": "Show an indicator on the left side of the screen to display real-time vehicle acceleration and deceleration."
+  },
   "RouteCount": {
     "title": "Route Count",
     "description": ""