arcade: update on resize

- fix resize misplaced player due to float precision
- remove top and right black borders if we can
- add min scale

lib/level/arcade_utils/constants.py

@@ -9,6 +9,7 @@ class Tiles:
 
     SPRITE_SIZE = 32
     TILE_SIZE = 32
+    MIN_SCALE = 2
 
 
 class Anim:

lib/level/arcade_utils/sprites/characters.py

@@ -48,7 +48,7 @@ class Character(arcade.Sprite):
 
         # Coordinates of the starting tile if in movement
         self.coord_x: int = 0
-        self.coord_y: int = map_height
+        self.coord_y: int = map_height - 1
 
         # Coordinates of the target tile
         self.target_x: int = self.coord_x

lib/level/arcade_utils/views/game_view.py

@@ -2,6 +2,7 @@
 
 from os.path import dirname
 from typing import Optional
+from math import ceil
 
 import arcade
 import arcade.gui
@@ -74,6 +75,9 @@ class GameView(EmptyView):
             int(self.tile_map.height),
             int(self.tile_map.width),
         )
+        # TODO: move this in a setup method
+        self.scale = 1.0
+        self.scale_old = 1.0
         self.on_resize(0, 0)  # dummy resize to scale everything
 
     def on_map_resize(self) -> None:
@@ -97,7 +101,8 @@ class GameView(EmptyView):
         scale_x = win_width / map_width / cst.Tiles.TILE_SIZE
         scale_y = win_height / map_height / cst.Tiles.TILE_SIZE
 
-        self.scale = min(scale_x, scale_y)
+        scale_candidate = ceil(min(scale_x, scale_y))
+        self.scale = max(cst.Tiles.MIN_SCALE, scale_candidate)
 
         return self.scale
 
@@ -178,11 +183,16 @@ class GameView(EmptyView):
         screen_center_x = max(screen_center_x, 0)
         screen_center_y = max(screen_center_y, 0)
 
-        # Do not scroll if the map can fit in one axis
-        if self.scaled_tile * self.tile_map.width <= vp_w:
-            screen_center_y = 0
-        if self.scaled_tile * self.tile_map.height <= vp_h:
-            screen_center_x = 0
+        # Avoid black borders on the top
+        map_height_px = self.scaled_tile * self.tile_map.height
+        if map_height_px >= vp_h:
+            top_vp_center = map_height_px - vp_h
+            screen_center_y = min(screen_center_y, top_vp_center)
+        # Avoid black borders on the right
+        map_width_px = self.scaled_tile * self.tile_map.width
+        if map_width_px >= vp_w:
+            top_vp_center = map_width_px - vp_w
+            screen_center_x = min(screen_center_x, top_vp_center)
 
         # Here's our center, move to it
         player_centered = screen_center_x, screen_center_y