make strafing toggleable (closes #220)

src/data/builtin/builtin_data/locale/en.json

@@ -130,7 +130,8 @@
           "hold": "Hold to Skip",
           "fastforward": "Fast-Forward"
         },
-        "discord_rpc": "Discord Rich Presence:"
+        "discord_rpc": "Discord Rich Presence:",
+        "allow_strafe": "Allow strafe:"
       },
       "links": "Links...",
       "advanced": "Advanced...",

src/data/builtin/builtin_data/locale/jp.json

@@ -130,7 +130,8 @@
           "hold": "を押し続け",
           "fastforward": "はやおくり"
         },
-        "discord_rpc": "Discord Rich Presence:"
+        "discord_rpc": "Discord Rich Presence:",
+        "allow_strafe": "ストレイフを許可する："
       },
       "links": "リンク",
       "advanced": "詳細設定",

src/game/player/mod.rs

@@ -237,7 +237,7 @@ impl Player {
             self.booster_switch = BoosterSwitch::None;
         }
 
-        if state.control_flags.control_enabled() {
+        if state.control_flags.control_enabled() && state.settings.allow_strafe {
             if self.controller.trigger_strafe() {
                 if self.controller.move_up() {
                     self.strafe_up = true;
@@ -291,7 +291,7 @@ impl Player {
                         self.vel_x += physics.dash_ground;
                     }
 
-                    if !self.controller.strafe() {
+                    if !self.controller.strafe() || !state.settings.allow_strafe {
                         if self.controller.move_left() {
                             self.direction = Direction::Left;
                         }
@@ -363,7 +363,7 @@ impl Player {
                     self.vel_x += physics.dash_air;
                 }
 
-                if !self.controller.strafe() {
+                if !self.controller.strafe() || !state.settings.allow_strafe {
                     if self.controller.look_left() {
                         self.direction = Direction::Left;
                     }
@@ -446,7 +446,7 @@ impl Player {
 
                     let mut booster_dir = self.direction;
 
-                    if self.controller.strafe() {
+                    if self.controller.strafe() && state.settings.allow_strafe {
                         if self.controller.move_left() {
                             self.booster_switch = BoosterSwitch::Left;
                         } else if self.controller.move_right() {
@@ -805,13 +805,11 @@ impl Player {
                 self.anim_num = 0;
                 self.anim_counter = 0;
             }
-        } else if self.up
-        {
+        } else if self.up {
             self.skin.set_state(PlayerAnimationState::FallingLookingUp);
             self.anim_num = 6;
             self.anim_counter = 0;
-        } else if self.down
-        {
+        } else if self.down {
             self.skin.set_state(PlayerAnimationState::FallingLookingDown);
             self.anim_num = 10;
             self.anim_counter = 0;

src/game/settings.rs

@@ -85,6 +85,8 @@ pub struct Settings {
     pub cutscene_skip_mode: CutsceneSkipMode,
     #[serde(default = "default_true")]
     pub discord_rpc: bool,
+    #[serde(default = "default_true")]
+    pub allow_strafe: bool,
 }
 
 fn default_true() -> bool {
@@ -93,7 +95,7 @@ fn default_true() -> bool {
 
 #[inline(always)]
 fn current_version() -> u32 {
-    23
+    24
 }
 
 #[inline(always)]
@@ -341,6 +343,11 @@ impl Settings {
             self.display_touch_controls = true;
         }
 
+        if self.version == 23 {
+            self.version = 24;
+            self.allow_strafe = true;
+        }
+
         if self.version != initial_version {
             log::info!("Upgraded configuration file from version {} to {}.", initial_version, self.version);
         }
@@ -448,6 +455,7 @@ impl Default for Settings {
             more_rust: false,
             cutscene_skip_mode: CutsceneSkipMode::Hold,
             discord_rpc: true,
+            allow_strafe: true,
         }
     }
 }

src/menu/settings_menu.rs

@@ -114,6 +114,7 @@ impl Default for LanguageMenuEntry {
 enum BehaviorMenuEntry {
     GameTiming,
     PauseOnFocusLoss,
+    AllowStrafe,
     CutsceneSkipMode,
     #[cfg(feature = "discord-rpc")]
     DiscordRPC,
@@ -559,6 +560,14 @@ impl SettingsMenu {
             ),
         );
 
+        self.behavior.push_entry(
+            BehaviorMenuEntry::AllowStrafe,
+            MenuEntry::Toggle(
+                state.loc.t("menus.options_menu.behavior_menu.allow_strafe").to_owned(),
+                state.settings.allow_strafe,
+            ),
+        );
+
         self.behavior.push_entry(
             BehaviorMenuEntry::CutsceneSkipMode,
             MenuEntry::Options(
@@ -969,6 +978,14 @@ impl SettingsMenu {
                         *value = state.settings.pause_on_focus_loss;
                     }
                 }
+                MenuSelectionResult::Selected(BehaviorMenuEntry::AllowStrafe, toggle) => {
+                    if let MenuEntry::Toggle(_, value) = toggle {
+                        state.settings.allow_strafe = !state.settings.allow_strafe;
+                        let _ = state.settings.save(ctx);
+
+                        *value = state.settings.allow_strafe;
+                    }
+                }
                 MenuSelectionResult::Selected(BehaviorMenuEntry::CutsceneSkipMode, toggle) => {
                     if let MenuEntry::Options(_, value, _) = toggle {
                         match state.settings.cutscene_skip_mode {