fix: Color, powerup and ship parameter fixes (#84)

Some general fixes

lib/game/components/background.dart

@@ -9,24 +9,23 @@ import 'package:lightrunners/game/lightrunners_game.dart';
 import 'package:lightrunners/ui/palette.dart';
 import 'package:lightrunners/utils/delaunay.dart';
 import 'package:lightrunners/utils/flame_utils.dart';
-import 'package:lightrunners/utils/triangle2.dart';
 
 const _margin = 200.0;
 
 const _numberShades = 5;
 const _shadeStep = 0.1;
 const _colorMoveSpeed = 30;
-final _emptyColor = GamePalette.black.brighten(_numberShades * _shadeStep);
+final _emptyColor = GamePalette.black.brighten(0.1);
 
-final _r = Random();
+final _random = Random();
 
 typedef ShadedTriangle = ({
-  Triangle2 triangle,
+  Path path,
   int shadeLevel,
 });
 
 class Background extends PositionComponent
-    with HasGameReference<LightRunnersGame> {
+    with HasGameReference<LightRunnersGame>, HasPaint {
   late Rect clipArea;
   late List<ShadedTriangle> mesh;
 
@@ -57,8 +56,8 @@ class Background extends PositionComponent
         .map((e) => e.translateBy(delta))
         .map(
           (triangle) => (
-            triangle: triangle,
-            shadeLevel: _r.nextInt(_numberShades),
+            path: triangle.toPath(),
+            shadeLevel: _random.nextInt(_numberShades),
           ),
         )
         .toList();
@@ -79,9 +78,8 @@ class Background extends PositionComponent
     canvas.clipRect(clipArea);
 
     for (final t in mesh) {
-      final shadedColor = currentColor.darken(t.shadeLevel * _shadeStep);
-      final path = t.triangle.toPath();
-      canvas.drawPath(path, Paint()..color = shadedColor);
+      final shadedColor = currentColor.brighten(t.shadeLevel * _shadeStep);
+      canvas.drawPath(t.path, paint..color = shadedColor);
     }
   }
 
@@ -91,10 +89,9 @@ class Background extends PositionComponent
     if (maxScore == 0) {
       return _fromColor(_emptyColor);
     }
-    const defaultBrightening = _numberShades / 2 * _shadeStep;
     final colors = sortedShips
         .takeWhile((ship) => ship.score == maxScore)
-        .map((ship) => ship.paint.color.brighten(defaultBrightening))
+        .map((ship) => ship.paint.color.darken(0.75))
         .toList();
     return colors.map(_fromColor).reduce((value, element) => value + element) /
         colors.length.toDouble();

lib/game/components/bullet.dart

@@ -6,8 +6,6 @@ import 'package:flame/experimental.dart';
 import 'package:lightrunners/game/game.dart';
 import 'package:lightrunners/ui/ui.dart';
 
-const bulletRadius = 8.0;
-
 class Bullet extends CircleComponent with HasGameReference<LightRunnersGame> {
   final int ownerPlayerNumber;
   final Vector2 velocity;
@@ -19,7 +17,7 @@ class Bullet extends CircleComponent with HasGameReference<LightRunnersGame> {
     required this.velocity,
     required this.color,
   }) : super(
-          radius: velocity.length / 32,
+          radius: velocity.length / 50,
           anchor: Anchor.center,
           paint: GamePalette.bulletPaints[ownerPlayerNumber],
         );

lib/game/components/powerup.dart

@@ -12,7 +12,7 @@ import 'package:lightrunners/game/game.dart';
 enum PowerUpType {
   speed('invertase.png'),
   shots('flame.png'),
-  secret('melos.png'),
+  drag('melos.png'),
   weight('widgetbook.png');
 
   const PowerUpType(this.asset);
@@ -80,9 +80,10 @@ class PowerUp extends SpriteComponent
       case PowerUpType.speed:
         ship.engineStrength *= 2;
       case PowerUpType.weight:
-        ship.weightFactor *= 2;
-      case PowerUpType.secret:
-      // Does absolutely nothing, very mysterious!
+        ship.weightFactor *= 1.5;
+        ship.size.scale(1.5);
+      case PowerUpType.drag:
+        ship.dragFactor *= 0.7;
     }
   }
 }

lib/game/components/ship.dart

@@ -100,9 +100,9 @@ class Ship extends SpriteComponent
   late final String spritePath;
 
   double engineStrength = 125.0;
-  double bulletSpeed = 300.0;
+  double bulletSpeed = 400.0;
   double weightFactor = 1.0;
-  final double _drag = 5.0;
+  double dragFactor = 5.0;
 
   final Vector2 velocity = Vector2.zero();
   final Vector2 drag = Vector2.zero();
@@ -208,7 +208,7 @@ class Ship extends SpriteComponent
       ..scale(engineStrength);
     drag
       ..setFrom(velocity)
-      ..scaleTo(_drag)
+      ..scaleTo(dragFactor)
       ..scale(-1);
     acceleration
       ..setFrom(engine)
@@ -262,7 +262,7 @@ class Ship extends SpriteComponent
       if (other.ownerPlayerNumber == playerNumber) {
         return;
       }
-      velocity.add(other.velocity..scale(0.1));
+      velocity.add(other.velocity..scale(0.2));
       other.removeFromParent();
     } else if (other is Ship && playerNumber < other.playerNumber) {
       _nextVelocity.setFrom(other.velocity.scaled(other.weightFactor));

lib/game/components/spotlight.dart

@@ -9,7 +9,7 @@ import 'package:lightrunners/game/components/ship.dart';
 import 'package:lightrunners/game/lightrunners_game.dart';
 import 'package:lightrunners/utils/utils.dart';
 
-const _spotlightRadius = 35.0; //pixels
+const _spotlightRadius = 45.0; // pixels
 const _spotlightSpeed = 50.0; // pixels per second
 const _targetChangeProbability = 0.05; // per [_targetChangePeriod]
 const _targetChangePeriod = 0.5; // seconds

lib/ui/palette.dart

@@ -1,7 +1,5 @@
 import 'dart:ui';
 
-import 'package:lightrunners/game/components/bullet.dart';
-
 class GamePalette {
   static const red = Color(0xFFE03232);
   static const orange = Color(0xFFE07B32);
@@ -28,9 +26,6 @@ class GamePalette {
   static final bulletPaints = shipValues.map((color) {
     return Paint()
       ..color = color
-      ..maskFilter = const MaskFilter.blur(
-        BlurStyle.normal,
-        bulletRadius / 2,
-      );
+      ..maskFilter = const MaskFilter.blur(BlurStyle.normal, 3);
   }).toList(growable: false);
 }