drafting game components

3 files changed, 40 insertions, 2 deletions

diff --git a/src/sliceitoff/display/__init__.py b/src/sliceitoff/display/__init__.py
index 6332319..296f519 100644
--- a/src/sliceitoff/display/__init__.py
+++ b/src/sliceitoff/display/__init__.py
@@ -1 +1,8 @@
 from .display import Display
+from .static import (
+    Scaling,
+    INTERNAL_WIDTH,
+    INTERNAL_HEIGHT,
+    INTERNAL_ASPECT)
+
+
diff --git a/src/sliceitoff/display/display.py b/src/sliceitoff/display/display.py
index 151bb11..af61d49 100644
--- a/src/sliceitoff/display/display.py
+++ b/src/sliceitoff/display/display.py
@@ -1,16 +1,36 @@
 import pygame
 
+from .static import (
+    Scaling,
+    INTERNAL_WIDTH,
+    INTERNAL_HEIGHT,
+    INTERNAL_ASPECT)
+
 class Display():
     def __init__(self):
         pygame.display.init()
         mode_info = pygame.display.Info()
         self.screen = pygame.display.set_mode(
                 (mode_info.current_w, mode_info.current_h),
-                pygame.FULLSCREEN )
+                pygame.FULLSCREEN | pygame.SCALED )
+
+    def get_scaling(self):
+        w, h = self.screen.get_size()
+        if w/h <= INTERNAL_ASPECT:
+            scale = w / INTERNAL_WIDTH
+            left = 0
+            top = int((h - INTERNAL_HEIGHT * scale) / 2)
+        else :
+            scale = h / INTERNAL_HEIGHT
+            left = int((w - INTERNAL_WIDTH * scale) / 2)
+            top = 0
+        return Scaling(scale, left, top)
 
     def update(self, groups = None):
         """ Updates the screen: clear, blit gropus and flip """
-        self.screen.fill()
+        self.screen.fill("magenta")
+        for group in groups:
+            group.draw(self.screen)
         pygame.display.flip()
 
     def __del__(self):
diff --git a/src/sliceitoff/display/static.py b/src/sliceitoff/display/static.py
new file mode 100644
index 0000000..43dc385
--- /dev/null
+++ b/src/sliceitoff/display/static.py
@@ -0,0 +1,11 @@
+from dataclasses import dataclass
+
+INTERNAL_WIDTH = 40000
+INTERNAL_HEIGHT = 30000
+INTERNAL_ASPECT = INTERNAL_WIDTH / INTERNAL_HEIGHT
+
+@dataclass
+class Scaling():
+    scale: float
+    left: int
+    top: int