Update keybindings and enhance loading screen functionality

- Refactor keybindings for gas spawning across multiple configurations
- Implement new loading screen updates during game initialization
- Add tests to ensure all weapon actions are exposed in keybinding profiles
- Introduce new assets for explosion effects

conf/keybindings.json

@@ -14,7 +14,7 @@
     "keydown_Space": "spawn_new_bomb",
     "keydown_N": "spawn_new_nuclear_bomb",
     "keydown_Left_Ctrl": "spawn_new_mine",
-    "keydown_G": "spawn_gas",
+    "keydown_G": "spawn_new_gas",
     "keydown_P": "toggle_pause"
   },
   "keybinding_start_menu": {

conf/keybindings_gamepad.yaml

@@ -1,5 +1,6 @@
 keybinding_game:
-  controllerbuttondown_a: spawn_rat
+  controllerbuttondown_a: spawn_new_mine
+  controllerbuttondown_b: spawn_rat
   controllerbuttondown_dpad_up: start_scrolling|Up
   controllerbuttondown_dpad_down: start_scrolling|Down
   controllerbuttondown_dpad_left: start_scrolling|Left
@@ -9,9 +10,9 @@ keybinding_game:
   controllerbuttonup_dpad_left: stop_scrolling
   controllerbuttonup_dpad_right: stop_scrolling
   controllerbuttondown_x: spawn_new_bomb
-  controllerbuttondown_y: spawn_new_nuclear_bomb
-  controllerbuttondown_leftshoulder: spawn_new_mine
-  controllerbuttondown_rightshoulder: spawn_gas
+  controllerbuttondown_y: spawn_new_gas
+  controllerbuttondown_guide: spawn_new_nuclear_bomb
+  controllerbuttondown_misc1: spawn_new_nuclear_bomb
   controllerbuttondown_start: toggle_pause
 
 keybinding_start_menu:
@@ -21,15 +22,13 @@ keybinding_start_menu:
   controllerbuttondown_dpad_down: menu_down
   controllerbuttondown_dpad_left: menu_left
   controllerbuttondown_dpad_right: menu_right
-  controllerbuttondown_b: quit_game
-  controllerbuttondown_back: quit_game
+  controllerbuttondown_misc1: quit_game
 
 keybinding_paused:
-  controllerbuttondown_a: reset_game
   controllerbuttondown_start: toggle_pause
   controllerbuttondown_dpad_up: menu_up
   controllerbuttondown_dpad_down: menu_down
   controllerbuttondown_dpad_left: menu_left
   controllerbuttondown_dpad_right: menu_right
-  controllerbuttondown_b: quit_game
-  controllerbuttondown_back: quit_game
+  controllerbuttondown_misc1: quit_game
+  controllerbuttondown_guide: quit_game

conf/keybindings_pc.yaml

@@ -13,6 +13,7 @@ keybinding_game:
   keydown_Space: spawn_new_bomb
   keydown_N: spawn_new_nuclear_bomb
   keydown_Left_Ctrl: spawn_new_mine
+  keydown_G: spawn_new_gas
   keydown_P: toggle_pause
 
 keybinding_start_menu:

conf/keybindings_r36s.yaml

@@ -11,6 +11,8 @@ keybinding_game:
   joybuttondown_1: spawn_new_bomb
   joybuttondown_3: spawn_new_nuclear_bomb
   joybuttondown_2: spawn_new_mine
+  joybuttondown_4: spawn_new_gas
+  joybuttondown_5: spawn_new_gas
   joybuttondown_16: toggle_pause
 
 keybinding_start_menu:

conf/keybindings_rg40xx.yaml

@@ -9,7 +9,7 @@ keybinding_game:
   joybuttondown_11: spawn_new_nuclear_bomb
   joybuttondown_4: spawn_new_mine
   joybuttondown_10: toggle_pause
-  joybuttondown_5: spawn_gas
+  joybuttondown_5: spawn_new_gas
 
 keybinding_start_menu:
   joybuttondown_9: reset_game