Introduce a tiny logo in run-time interface (#82)

metadrive/engine/asset_loader.py

@@ -90,3 +90,9 @@ def randomize_cover():
     selected = get_np_random().choice(files)
     selected_file = AssetLoader.file_path("{}/{}".format(background_folder_name, selected))
     return selected_file
+
+
+def get_logo_file():
+    file = AssetLoader.file_path("logo-tiny.png")
+    assert os.path.exists(file)
+    return file

metadrive/engine/core/engine_core.py

@@ -10,7 +10,7 @@
 
 from metadrive.constants import RENDER_MODE_OFFSCREEN, RENDER_MODE_NONE, RENDER_MODE_ONSCREEN, EDITION, CamMask, \
     BKG_COLOR
-from metadrive.engine.asset_loader import initialize_asset_loader, close_asset_loader, randomize_cover
+from metadrive.engine.asset_loader import initialize_asset_loader, close_asset_loader, randomize_cover, get_logo_file
 from metadrive.engine.core.collision_callback import collision_callback
 from metadrive.engine.core.force_fps import ForceFPS
 from metadrive.engine.core.light import Light
@@ -48,6 +48,17 @@ def attach_cover_image(window_width, window_height):
     return image
 
 
+def attach_logo(engine):
+    cover_file_path = get_logo_file()
+    image = OnscreenImage(image=cover_file_path)
+    scale = 0.075
+    image.set_scale((scale * 3, 1, scale))
+    image.set_pos((0.8325 * engine.w_scale, 0, -0.94 * engine.h_scale))
+    image.set_antialias(AntialiasAttrib.MMultisample)
+    image.setTransparency(True)
+    return image
+
+
 class EngineCore(ShowBase.ShowBase):
     DEBUG = False
     loadPrcFileData("", "window-title {}".format(EDITION))
@@ -163,6 +174,7 @@ def __init__(self, global_config):
 
             # Display logo
             if self.mode == RENDER_MODE_ONSCREEN and (not self.global_config["debug"]):
+                self._window_logo = attach_logo(self)
                 self._loading_logo = attach_cover_image(
                     window_width=self.get_size()[0], window_height=self.get_size()[1]
                 )