feat: static priorities

packages/pinball_components/lib/src/flame/priority.dart

@@ -1,5 +1,111 @@
 import 'dart:math' as math;
+
 import 'package:flame/components.dart';
+import 'package:pinball_components/pinball_components.dart';
+
+/// {@template pinball_priority}
+/// Priorities for the component rendering order in the pinball game.
+/// {@endtemplate}
+abstract class PinballPriority {
+  static const base = 0;
+  static const above = 1;
+  static const below = -1;
+
+  // BALL
+
+  /// Render priority for the [Ball] while it's on the board.
+  static const int ballOnBoard = base;
+
+  /// Render priority for the [Ball] while it's on the [SpaceshipRamp].
+  static const int ballOnSpaceshipRamp = above + spaceshipRampBackgroundRailing;
+
+  /// Render priority for the [Ball] while it's on the [Spaceship].
+  static const int ballOnSpaceship = above + spaceshipSaucer;
+
+  /// Render priority for the [Ball] while it's on the [SpaceshipRail].
+  static const int ballOnSpaceshipRail = spaceshipRail;
+
+  /// Render priority for the [Ball] while it's on the [LaunchRamp].
+  static const int ballOnLaunchRamp = above + launchRamp;
+
+  // BACKGROUND
+
+  static const int background = 3 * below + base;
+
+  // BOUNDARIES
+
+  static const int bottomBoundary = above + dinoBottomWall;
+
+  static const int outerBoudary = above + background;
+
+  // BOTTOM GROUP
+
+  static const int bottomGroup = above + ballOnBoard;
+
+  // LAUNCHER
+
+  static const int launchRamp = above + outerBoudary;
+
+  static const int launchRampForegroundRailing = above + ballOnLaunchRamp;
+
+  static const int plunger = launchRamp;
+
+  static const int rocket = above + bottomBoundary;
+
+  // DINO LAND
+
+  static const int dinoTopWall = above + ballOnBoard;
+
+  static const int dino = above + dinoTopWall;
+
+  static const int dinoBottomWall = above + dino;
+
+  static const int slingshot = above + ballOnBoard;
+
+  // FLUTTER FOREST
+
+  static const int flutterSignPost = above + launchRampForegroundRailing;
+
+  static const int dashBumper = above + ballOnBoard;
+
+  static const int dashAnimatronic = above + launchRampForegroundRailing;
+
+  // SPARKY FIRE ZONE
+
+  static const int computerBase = below + ballOnBoard;
+
+  static const int computerTop = above + ballOnBoard;
+
+  static const int sparkyAnimatronic = above + spaceshipRampForegroundRailing;
+
+  static const int sparkyBumper = above + ballOnBoard;
+
+  // ANDROID SPACESHIP
+
+  static const int spaceshipRail = above + bottomGroup;
+
+  static const int spaceshipRailForeground = above + spaceshipRail;
+
+  static const int spaceshipSaucer = above + spaceshipRail;
+
+  static const int spaceshipSaucerWall = above + spaceshipSaucer;
+
+  static const int androidHead = above + spaceshipSaucer;
+
+  static const int spaceshipRamp = above + ballOnBoard;
+
+  static const int spaceshipRampBackgroundRailing = above + spaceshipRamp;
+
+  static const int spaceshipRampForegroundRailing = above + ballOnSpaceshipRamp;
+
+  static const int spaceshipRampBoardOpening = below + ballOnBoard;
+
+  static const int alienBumper = above + ballOnBoard;
+
+  // SCORE TEXT
+
+  static const int scoreText = above + spaceshipRampForegroundRailing;
+}
 
 /// Helper methods to change the [priority] of a [Component].
 extension ComponentPriorityX on Component {