added background functionality

.idea/workspace.xml

@@ -8,7 +8,7 @@
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/src/starsky_presenter/entry.py" beforeDir="false" afterPath="$PROJECT_DIR$/src/starsky_presenter/entry.py" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/src/starsky_presenter/projection/screen.py" beforeDir="false" afterPath="$PROJECT_DIR$/src/starsky_presenter/projection/screen.py" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/starsky_presenter/resources/scenes.yml" beforeDir="false" afterPath="$PROJECT_DIR$/src/starsky_presenter/resources/scenes.yml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/starsky_presenter/resources/objects.yml" beforeDir="false" afterPath="$PROJECT_DIR$/src/starsky_presenter/resources/objects.yml" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -33,18 +33,18 @@
     <option name="hideEmptyMiddlePackages" value="true" />
     <option name="showLibraryContents" value="true" />
   </component>
-  <component name="PropertiesComponent"><![CDATA[{
-  "keyToString": {
-    "ModuleVcsDetector.initialDetectionPerformed": "true",
-    "RunOnceActivity.ShowReadmeOnStart": "true",
-    "RunOnceActivity.TerminalTabsStorage.copyFrom.TerminalArrangementManager": "true",
-    "RunOnceActivity.git.unshallow": "true",
-    "git-widget-placeholder": "main",
-    "last_opened_file_path": "/home/linus/Desktop/HomeLabProjects/StarSkyPresenter/src/starsky_presenter/main.py",
-    "settings.editor.selected.configurable": "preferences.pluginManager",
-    "uv run.StarSky Presenter.executor": "Run"
+  <component name="PropertiesComponent">{
+  &quot;keyToString&quot;: {
+    &quot;ModuleVcsDetector.initialDetectionPerformed&quot;: &quot;true&quot;,
+    &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
+    &quot;RunOnceActivity.TerminalTabsStorage.copyFrom.TerminalArrangementManager&quot;: &quot;true&quot;,
+    &quot;RunOnceActivity.git.unshallow&quot;: &quot;true&quot;,
+    &quot;git-widget-placeholder&quot;: &quot;main&quot;,
+    &quot;last_opened_file_path&quot;: &quot;/home/linus/Desktop/HomeLabProjects/StarSkyPresenter/src/starsky_presenter/main.py&quot;,
+    &quot;settings.editor.selected.configurable&quot;: &quot;preferences.pluginManager&quot;,
+    &quot;uv run.StarSky Presenter.executor&quot;: &quot;Run&quot;
   }
-}]]></component>
+}</component>
   <component name="RecentsManager">
     <key name="CopyFile.RECENT_KEYS">
       <recent name="$PROJECT_DIR$/resources" />

src/starsky_presenter/entry.py

@@ -52,7 +52,10 @@ def cli_main():
 
     stars = [ setup_star_instance(star) for star in objects["stars"] ]
 
-    screen = Screen(stars)
+    # load the background image
+    background = pygame.image.load(reader.open_resource(f"resources/{objects['background']}"))
+
+    screen = Screen(stars, background)
     control_window = ControlWindow(screen)
 
     while control_window.is_running():

src/starsky_presenter/projection/screen.py

@@ -1,7 +1,7 @@
 import json
 
 import pygame
-from pygame import transform, gfxdraw, Vector2
+from pygame import transform, gfxdraw, Vector2, Surface
 from math import sin, cos, pi
 
 from time import time, sleep
@@ -19,7 +19,7 @@ class Star:
         self.image = image
 
 class Screen:
-    def __init__(self, stars: list[Star]) -> None:
+    def __init__(self, stars: list[Star], background: Surface | None) -> None:
         if not pygame.get_init():
             pygame.init()
         self.screen = pygame.display.set_mode((1920, 1080))
@@ -30,6 +30,8 @@ class Screen:
         self.active_scene = 0
         self.last_scene = 0
         self.scene_time: float = 0
+        self.background = background
+
 
 
     def update(self, scene_data):
@@ -47,7 +49,19 @@ class Screen:
             star.rot = weight*new[star.sid]['rot'] + (1-weight)*old[star.sid]['rot']
             star.scale = weight*new[star.sid]['scale'] + (1-weight)*old[star.sid]['scale']
 
+        # first draw the background, if any
+        if self.background:
+            ratio_x = self.screen.get_width() / self.background.get_width()
+            ratio_y = self.screen.get_height() / self.background.get_height()
+            scaled_background = transform.rotozoom(self.background, 0, max(ratio_x, ratio_y))
 
+            bg_pos = (
+                (self.screen.get_width() - scaled_background.get_width()) / 2,
+                (self.screen.get_height() - scaled_background.get_height()) / 2
+            )
+            self.screen.blit(scaled_background, bg_pos)
+
+        # draw all the star objects
         for star in self.stars:
             update_star_scene(star, scene_data[self.last_scene], scene_data[self.active_scene], weight)
             star.alpha += star.rot * delta

src/starsky_presenter/resources/objects.yml

@@ -6,7 +6,7 @@ stars:
     alpha: 0
     rot: 30
     offset: 0
-    image: star.png
+    image: BasicStar1.png
   - sid: star-bg-02
     x: 0.3
     y: 0.4
@@ -14,4 +14,5 @@ stars:
     alpha: 25
     rot: 29
     offset: 0
-    image: star.png
+    image: BasicStar1.png
+background: background-01.jpg