Cycle game speed from the analog triggers too (L2/R2)

src/core/Game.lua

@@ -566,7 +566,7 @@ function Game:keypressed(key)
     return
   elseif key == "1" then
     -- cycle GAME SPEED (0.25X → 200X, logic only; audio unaffected);
-    -- R2/L2 on gamepad do the same (see gamepadpressed)
+    -- shoulders/triggers on gamepad do the same (see gamepadpressed)
     self:_cycleSpeed(1)
     return
   elseif key == "2" then
@@ -649,12 +649,15 @@ function Game:gamepadpressed(joystick, button)
   -- a controller is being used: the touch overlay steps aside until the
   -- next screen touch (mobile only; a no-op elsewhere)
   TouchControls:noteGamepad()
-  -- shoulder buttons cycle GAME SPEED (R2/rightshoulder = faster,
-  -- L2/leftshoulder = slower; same as keyboard hotkey 1)
-  if button == "rightshoulder" then
+  -- shoulder buttons and analog triggers cycle GAME SPEED (R1/RB or
+  -- R2/RT = faster, L1/LB or L2/LT = slower; same as keyboard hotkey
+  -- 1).  LÖVE reports an analog trigger as gamepadpressed once it
+  -- crosses the press threshold, so a trigger pull lands here like any
+  -- other pad button.
+  if button == "rightshoulder" or button == "righttrigger" then
     self:_cycleSpeed(1)
     return
-  elseif button == "leftshoulder" then
+  elseif button == "leftshoulder" or button == "lefttrigger" then
     self:_cycleSpeed(-1)
     return
   end

tests/engine/speed_shoulders_triggers_test.lua

@@ -0,0 +1,64 @@
+-- The built-in GAME SPEED hotkeys on controller: the shoulder buttons
+-- (L1/R1) and the analog triggers (L2/R2) all cycle the engine speed
+-- ladder, R-side faster and L-side slower, exactly like keyboard hotkey
+-- 1.  Anything else must still fall through to the top-state pad
+-- routing and never touch the speed ladder.  LÖVE reports an analog
+-- trigger as gamepadpressed once it crosses the press threshold, so
+-- "lefttrigger"/"righttrigger" land here like any other pad button.
+-- No pokered cite: port-only (gap C2).
+--   luajit tests/engine/speed_shoulders_triggers_test.lua
+
+package.path = "./?.lua;./?/init.lua;" .. package.path
+
+local T = require("tests.harness")
+local check, eq = T.check, T.eq
+love = love or require("tests.love_stub")
+
+local Game = require("src.core.Game")
+local Input = require("src.core.Input")
+Input:init()
+
+local dirs = {}
+local game = {
+  save = { options = { speed = 1 } },
+  _cycleSpeed = function(self, dir)
+    dirs[#dirs + 1] = dir
+    self.save.options.speed = self.save.options.speed + dir
+  end,
+  stack = { top = function() return nil end },
+}
+function game:writeOptions() end
+
+local function last()
+  return dirs[#dirs]
+end
+
+-- ---- shoulders ----------------------------------------------------------
+dirs = {}
+Game.gamepadpressed(game, nil, "rightshoulder")
+eq(last(), 1, "R1 speeds up")
+Game.gamepadpressed(game, nil, "leftshoulder")
+eq(last(), -1, "L1 slows down")
+
+-- ---- analog triggers ----------------------------------------------------
+dirs = {}
+Game.gamepadpressed(game, nil, "righttrigger")
+eq(last(), 1, "R2 speeds up")
+Game.gamepadpressed(game, nil, "lefttrigger")
+eq(last(), -1, "L2 slows down")
+
+-- ---- everything else falls through to the top-state pad routing ---------
+local routed = nil
+game.stack.top = function()
+  return { onGamepadPressed = function(_, b) routed = b end }
+end
+Game.gamepadpressed(game, nil, "a")
+eq(routed, "a", "a normal button still reaches the top-state pad routing")
+routed = nil
+Game.gamepadpressed(game, nil, "rightshoulder")
+check(routed == nil, "the speed buttons are consumed, never routed to a menu")
+Game.gamepadpressed(game, nil, "lefttrigger")
+check(routed == nil, "a trigger pull is consumed the same way")
+check(#dirs == 4, "only the speed buttons touched the speed ladder")
+
+T.finish("speed_shoulders_triggers")