Merge branch 'master' into 'mouse_interaction'

# Conflicts:
#   squirrelbattle/display/display_manager.py
#   squirrelbattle/display/menudisplay.py
#   squirrelbattle/entities/items.py

squirrelbattle/game.py

@@ -24,6 +24,7 @@ class Game:
     """
     map: Map
     player: Player
+    screen: Any
     # display_actions is a display interface set by the bootstrapper
     display_actions: callable
 
@@ -32,6 +33,7 @@ class Game:
         Init the game.
         """
         self.state = GameMode.MAINMENU
+        self.waiting_for_friendly_key = False
         self.settings = Settings()
         self.settings.load_settings()
         self.settings.write_settings()
@@ -40,6 +42,7 @@ class Game:
         self.settings_menu = menus.SettingsMenu()
         self.settings_menu.update_values(self.settings)
         self.inventory_menu = menus.InventoryMenu()
+        self.store_menu = menus.StoreMenu()
         self.logs = Logs()
         self.message = None
 
@@ -87,13 +90,19 @@ class Game:
             return
 
         if self.state == GameMode.PLAY:
-            self.handle_key_pressed_play(key)
+            if self.waiting_for_friendly_key:
+                # The player requested to talk with a friendly entity
+                self.handle_friendly_entity_chat(key)
+            else:
+                self.handle_key_pressed_play(key)
         elif self.state == GameMode.INVENTORY:
             self.handle_key_pressed_inventory(key)
         elif self.state == GameMode.MAINMENU:
             self.handle_key_pressed_main_menu(key)
         elif self.state == GameMode.SETTINGS:
             self.settings_menu.handle_key_pressed(key, raw_key, self)
+        elif self.state == GameMode.STORE:
+            self.handle_key_pressed_store(key)
         self.display_actions(DisplayActions.REFRESH)
 
     def handle_key_pressed_play(self, key: KeyValues) -> None:
@@ -116,6 +125,42 @@ class Game:
             self.state = GameMode.INVENTORY
         elif key == KeyValues.SPACE:
             self.state = GameMode.MAINMENU
+        elif key == KeyValues.CHAT:
+            # Wait for the direction of the friendly entity
+            self.waiting_for_friendly_key = True
+
+    def handle_friendly_entity_chat(self, key: KeyValues) -> None:
+        """
+        If the player is talking to a friendly entity, we get the direction
+        where the entity is, then we interact with it.
+        """
+        if not self.waiting_for_friendly_key:
+            return
+        self.waiting_for_friendly_key = False
+
+        if key == KeyValues.UP:
+            xp = self.player.x
+            yp = self.player.y - 1
+        elif key == KeyValues.DOWN:
+            xp = self.player.x
+            yp = self.player.y + 1
+        elif key == KeyValues.LEFT:
+            xp = self.player.x - 1
+            yp = self.player.y
+        elif key == KeyValues.RIGHT:
+            xp = self.player.x + 1
+            yp = self.player.y
+        else:
+            return
+        if self.map.entity_is_present(yp, xp):
+            for entity in self.map.entities:
+                if entity.is_friendly() and entity.x == xp and \
+                        entity.y == yp:
+                    msg = entity.talk_to(self.player)
+                    self.logs.add_message(msg)
+                    if entity.is_merchant():
+                        self.state = GameMode.STORE
+                        self.store_menu.update_merchant(entity)
 
     def handle_key_pressed_inventory(self, key: KeyValues) -> None:
         """
@@ -140,6 +185,27 @@ class Game:
                                                len(self.inventory_menu.values)
                                                - 1)
 
+    def handle_key_pressed_store(self, key: KeyValues) -> None:
+        """
+        In a store menu, we can buy items or close the menu.
+        """
+        if key == KeyValues.SPACE:
+            self.state = GameMode.PLAY
+        elif key == KeyValues.UP:
+            self.store_menu.go_up()
+        elif key == KeyValues.DOWN:
+            self.store_menu.go_down()
+        if self.store_menu.values and not self.player.dead:
+            if key == KeyValues.ENTER:
+                item = self.store_menu.validate()
+                flag = item.be_sold(self.player, self.store_menu.merchant)
+                if not flag:
+                    self.message = _("You do not have enough money")
+                    self.display_actions(DisplayActions.UPDATE)
+            # Ensure that the cursor has a good position
+            self.store_menu.position = min(self.store_menu.position,
+                                           len(self.store_menu.values) - 1)
+
     def handle_key_pressed_main_menu(self, key: KeyValues) -> None:
         """
         In the main menu, we can navigate through options.