Added a reset state to every object so that the game can cleanly be restarted.

lib/BugHolder.dart

@@ -16,6 +16,15 @@ class BugHolder {
   Future loadBugs() async {
     bug = await Flame.images.load("bug-frames.png");
     breaking = await Flame.images.load("bug-break-frames.png");
+  }
+
+  void setUp() {
+    for (int i = 0; i < bugs.length; i++) {
+      for (int j = 0; j < bugs[i].length; j++) {
+        remove(bugs[i], j);
+      }
+    }
+    bugs = [];
     for (int i = 0; i < 9; i++) {
       bugs.add([]);
     }
@@ -93,12 +102,17 @@ class BugHolder {
     }
   }
 
+  void remove(List<Bug> levelHolder, int j) {
+    levelHolder[j].remove();
+    levelHolder[j].sprite.remove();
+    levelHolder.removeAt(j);
+  }
+
   void removePast(MyGame gameRef) {
     for (List<Bug> bugLevel in bugs) {
       for (int i = 0; i < bugLevel.length;) {
         if (bugLevel[i].sprite.x + bugLevel[i].sprite.width < 0) {
-          bugLevel[i].sprite.remove();
+          remove(bugLevel, i);
-          bugLevel.removeAt(i);
           continue;
         }
         i++;

lib/CircuitBackground.dart

@@ -19,7 +19,11 @@ class CircuitBackground extends MovingObject {
     background = await Flame.images.load("bg.png");
     background1 = Sprite(background);
     background2 = Sprite(background);
+    setUp();
+  }
 
+  void setUp() {
+    background1Position = Vector2(0, 0);
     background1Size = Vector2(
         gameRef.size.y * (background!.width / background!.height),
         gameRef.size.y);

lib/CoinHolder.dart

@@ -13,6 +13,15 @@ class CoinHolder {
 
   Future loadCoins() async {
     coin = await Flame.images.load("coin-frames.png");
+  }
+
+  void setUp() {
+    for (int i = 0; i < coins.length; i++) {
+      for (int j = 0; j < coins[i].length; j++) {
+        remove(coins[i], j);
+      }
+    }
+    coins = [];
     for (int i = 0; i < 9; i++) {
       coins.add([]);
     }
@@ -63,12 +72,17 @@ class CoinHolder {
     }
   }
 
+  void remove(List<Coin> levelHolder, int j) {
+    levelHolder[j].remove();
+    levelHolder[j].sprite.remove();
+    levelHolder.removeAt(j);
+  }
+
   void removePast(MyGame gameRef) {
     for (List<Coin> coinLevel in coins) {
       for (int i = 0; i < coinLevel.length;) {
         if (coinLevel[i].sprite.x + coinLevel[i].sprite.width < 0) {
-          coinLevel[i].sprite.remove();
+          remove(coinLevel, i);
-          coinLevel.removeAt(i);
           continue;
         }
         i++;

lib/GameState.dart

@@ -4,19 +4,23 @@ import 'package:flame/components.dart';
 import 'package:flutter/material.dart';
 
 class GameState extends Component {
-  int numCoins = 0;
+  static const int CIRCUIT_PERIOD = 500000;
-  int distance = 0;
   late Rect square;
   late Color color = Colors.white;
-  int start = 0;
   late ColorTween tween;
-  static const int CIRCUIT_PERIOD = 500000;
+
+  int start = 0;
+  bool isPaused = false;
+  int numCoins = 0;
+  int distance = 0;
 
   @override
   void update(double dt) {
     super.update(dt);
-    distance = DateTime.now().microsecondsSinceEpoch - start;
+    if (!isPaused) {
-    color = tween.lerp(sin(distance.toDouble() / CIRCUIT_PERIOD))!;
+      distance = DateTime.now().microsecondsSinceEpoch - start;
+      color = tween.lerp(sin(distance.toDouble() / CIRCUIT_PERIOD))!;
+    }
   }
 
   void addCoin() {
@@ -31,25 +35,35 @@ class GameState extends Component {
 
   Future load(Vector2 size) async {
     square = Rect.fromLTWH(0, 0, size.x, size.y);
-    reset();
   }
 
   void setSize(Vector2 size) {
     square = Rect.fromLTWH(0, 0, size.x, size.y);
   }
 
-  void reset() {
+  void setUp() {
+    numCoins = 0;
+    distance = 0;
     start = DateTime.now().microsecondsSinceEpoch;
     tween = ColorTween(begin: Colors.yellow, end: Colors.yellowAccent);
+    isPaused = false;
+  }
+
+  void setPaused() {
+    isPaused = true;
   }
 
   double getVelocity() {
-    if (distance > 50000000) {
+    if (!isPaused) {
-      return 250.0;
+      if (distance > 50000000) {
-    } else if (distance > 10000000)
+        return 250.0;
-      return 175.0;
+      } else if (distance > 10000000)
-    else {
+        return 175.0;
-      return 100.0;
+      else {
+        return 100.0;
+      }
+    } else {
+      return 0;
     }
   }
 }

lib/PlatformHolder.dart

@@ -15,6 +15,15 @@ class PlatformHolder {
     platform1 = await Flame.images.load('p1-frames.png');
     platform2 = await Flame.images.load('p2-frames.png');
     platform3 = await Flame.images.load('p3-frames.png');
+  }
+
+  void setUp() {
+    for (int i = 0; i < platforms.length; i++) {
+      for (int j = 0; j < platforms[i].length; j++) {
+        remove(platforms[i], j);
+      }
+    }
+    platforms = [];
     for (int i = 0; i < 9; i++) {
       platforms.add([]);
     }
@@ -56,14 +65,20 @@ class PlatformHolder {
     }
   }
 
+  void remove(List<Platform> levelHolder, int j) {
+    levelHolder[j].remove();
+    levelHolder[j].sprite.remove();
+    levelHolder.removeAt(j);
+    print("removed platform");
+  }
+
   void removePast(MyGame gameRef) {
     for (List<Platform> platformLevel in platforms) {
       int removed = 0;
       while (platformLevel.isNotEmpty &&
           platformLevel[0].sprite.position.x + platformLevel[0].sprite.width <
               0) {
-        platformLevel[0].sprite.remove();
+        remove(platformLevel, 0);
-        platformLevel.removeAt(0);
         removed++;
       }
       if (platformLevel.isNotEmpty &&
@@ -74,13 +89,8 @@ class PlatformHolder {
         double secondToLastPosition =
             platformLevel.elementAt(secondToLast).sprite.x;
         if (secondToLastPosition > gameRef.size.x) {
-          platformLevel[secondToLast].remove();
+          remove(platformLevel, secondToLast + 1);
-          platformLevel[secondToLast].sprite.remove();
+          remove(platformLevel, secondToLast);
-          platformLevel.removeAt(secondToLast);
-
-          platformLevel[secondToLast + 1].remove();
-          platformLevel[secondToLast + 1].sprite.remove();
-          platformLevel.removeAt(secondToLast + 1);
         }
       }
     }

lib/Runner.dart

@@ -22,6 +22,27 @@ enum RunnerState {
 class Runner extends Component with HasGameRef<MyGame> {
   late SpriteAnimationGroupComponent sprite;
   String runnerState = "run";
+  int level = 4;
+  String previousState = "run";
+  var runnerPosition = Vector2(0, 0);
+  var runnerSize;
+  bool dead = false;
+
+  void setUp() {
+    dead = false;
+    runnerState = "run";
+    previousState = "run";
+    level = 4;
+
+    runnerSize = Vector2(
+      gameRef.size.y / 9,
+      gameRef.size.y / 9,
+    );
+
+    setSize(runnerSize, gameRef.blockSize);
+    runnerPosition = Vector2(gameRef.blockSize, gameRef.blockSize * 4);
+    setPosition(runnerPosition);
+  }
 
   void setPosition(Vector2 position) {
     sprite.position = position;
@@ -41,15 +62,14 @@ class Runner extends Component with HasGameRef<MyGame> {
     getSprite().render(c, position: sprite.position, size: sprite.size);
   }
 
-  int level = 1;
-
   void updateLevel() {
     level = (sprite.position.y / gameRef.blockSize).round();
   }
 
-  String previousState = "run";
-
   void event(String event) {
+    if (gameRef.gameState.isPaused) {
+      return;
+    }
     previousState = runnerState;
     print(event);
     switch (event) {
@@ -129,12 +149,20 @@ class Runner extends Component with HasGameRef<MyGame> {
         sprite.current = RunnerState.duck;
         break;
       case "die":
+        if (dead) {
+          return;
+        }
         runnerState = event;
         sprite.current = RunnerState.die;
+        gameRef.die();
         break;
       case "electro":
+        if (dead) {
+          return;
+        }
         runnerState = event;
         sprite.current = RunnerState.electro;
+        gameRef.die();
         break;
       default:
         break;
@@ -142,6 +170,9 @@ class Runner extends Component with HasGameRef<MyGame> {
   }
 
   void control(String input) {
+    if (gameRef.gameState.isPaused) {
+      return;
+    }
     print(input);
     switch (input) {
       case "up":
@@ -190,7 +221,6 @@ class Runner extends Component with HasGameRef<MyGame> {
 
     intersecting();
     sprite.update(dt);
-    print(runnerState);
   }
 
   bool onTopOfPlatform() {
@@ -212,6 +242,9 @@ class Runner extends Component with HasGameRef<MyGame> {
   }
 
   void intersecting() {
+    if (gameRef.gameState.isPaused) {
+      return;
+    }
     Rect runnerRect = sprite.toRect();
     bool onTopOfPlatform = false;
     for (List<Platform> platformLevel in gameRef.platformHolder.platforms) {
@@ -234,8 +267,7 @@ class Runner extends Component with HasGameRef<MyGame> {
       for (int i = 0; i < coinLevel.length;) {
         if (coinLevel[i].intersect(runnerRect) != "none") {
           gameRef.gameState.numCoins++;
-          coinLevel[i].remove();
+          gameRef.coinHolder.remove(coinLevel, i);
-          coinLevel.removeAt(i);
           print(gameRef.gameState.numCoins);
           continue;
         }
@@ -247,6 +279,7 @@ class Runner extends Component with HasGameRef<MyGame> {
       for (int i = 0; i < wireLevel.length; i++) {
         if (wireLevel[i].intersect(runnerRect) != "none") {
           event("electro");
+          return;
         }
       }
     }
@@ -266,6 +299,7 @@ class Runner extends Component with HasGameRef<MyGame> {
             continue;
           } else if (aboveIntersect != "none") {
             event("die");
+            return;
           }
         } else if (intersectState == "left" && runnerState == "kick") {
           bugLevel[i].sprite.current = BugState.breaking;
@@ -273,6 +307,7 @@ class Runner extends Component with HasGameRef<MyGame> {
           // bugLevel.removeAt(i);
         } else {
           event("die");
+          return;
         }
       }
     }
@@ -356,8 +391,9 @@ class Runner extends Component with HasGameRef<MyGame> {
       'electrocuted-frames.png',
       SpriteAnimationData.sequenced(
         amount: 2,
-        stepTime: 0.1,
+        stepTime: 0.25,
         textureSize: Vector2(512, 512),
+        loop: false,
       ),
     );
 

lib/WireHolder.dart

@@ -14,6 +14,15 @@ class WireHolder {
 
   Future loadWires() async {
     wire = await Flame.images.load("wire-frames.png");
+  }
+
+  void setUp() {
+    for (int i = 0; i < wires.length; i++) {
+      for (int j = 0; j < wires[i].length; j++) {
+        remove(wires[i], j);
+      }
+    }
+    wires = [];
     for (int i = 0; i < 9; i++) {
       wires.add([]);
     }
@@ -52,6 +61,7 @@ class WireHolder {
       }
 
       Wire wire = Wire(gameRef);
+      wire.sprite.renderFlipX = true;
       if (level % 3 == 0) {
         wire.sprite.renderFlipY = true;
         wire.setPosition(
@@ -93,12 +103,17 @@ class WireHolder {
     }
   }
 
+  void remove(List<Wire> levelHolder, int j) {
+    levelHolder[j].remove();
+    levelHolder[j].sprite.remove();
+    levelHolder.removeAt(j);
+  }
+
   void removePast(MyGame gameRef) {
     for (List<Wire> wireLevel in wires) {
       for (int i = 0; i < wireLevel.length;) {
         if (wireLevel[i].sprite.x + wireLevel[i].sprite.width < 0) {
-          wireLevel[i].sprite.remove();
+          remove(wireLevel, i);
-          wireLevel.removeAt(i);
           continue;
         }
         i++;

lib/main.dart

@@ -48,17 +48,8 @@ class MyGame extends BaseGame with PanDetector, TapDetector, KeyboardEvents {
   late BugHolder bugHolder;
   Random random = Random();
 
-  // late Sprite background1;
-  // late Sprite background2;
   late Runner runner;
   late GameState gameState;
-  // var background;
-
-  var runnerPosition = Vector2(0, 0);
-  var runnerSize;
-  // var backgroundSize;
-  // var background1Position;
-  // var background2Position;
   late double blockSize;
 
   bool loaded = false;
@@ -68,9 +59,6 @@ class MyGame extends BaseGame with PanDetector, TapDetector, KeyboardEvents {
   Future<void> onLoad() async {
     // debugMode = true;
     FlameAudio.bgm.initialize();
-    // background = await Flame.images.load('bg.png');
-    // background1 = Sprite(background);
-    // background2 = Sprite(background);
 
     circuitBackground = CircuitBackground(this);
     await circuitBackground.load();
@@ -88,22 +76,16 @@ class MyGame extends BaseGame with PanDetector, TapDetector, KeyboardEvents {
 
     runner = Runner();
     await runner.load(loadSpriteAnimation);
-    runner.setSize(runnerSize, blockSize);
-    runnerPosition = Vector2(blockSize, blockSize * 1);
-    runner.setPosition(runnerPosition);
-    add(runner);
-
-    // Generate the first 4 Platforms that will always be there at the start.
-    for (int i = 0; i < 4; i++) {
-      platformHolder.generatePlatform(this, 8, true);
-    }
-    fillScreen();
 
     FlameAudio.bgm.play('Infinite_Spankage_M.mp3');
     loaded = true;
+    setUp();
   }
 
   void fillScreen() {
+    if (shouldReset) {
+      return;
+    }
     for (int i = 2; i < 9; i = i + 3) {
       while (!platformHolder.generatePlatform(this, i, false)) {}
     }
@@ -156,15 +138,48 @@ class MyGame extends BaseGame with PanDetector, TapDetector, KeyboardEvents {
     return false;
   }
 
+  bool shouldReset = false;
+
+  void reset() {
+    if (!(runner.sprite.animation?.done() ?? false)) {
+      return;
+    }
+    runner.sprite.animation!.reset();
+    shouldReset = false;
+    this.components.clear();
+    setUp();
+  }
+
+  void die() {
+    gameState.setPaused();
+    shouldReset = true;
+  }
+
+  void setUp() {
+    add(runner);
+    runner.sprite.clearEffects();
+    runner.sprite.current = RunnerState.run;
+    circuitBackground.setUp();
+    platformHolder.setUp();
+    coinHolder.setUp();
+    wireHolder.setUp();
+    bugHolder.setUp();
+
+    gameState.setUp();
+
+    runner.setUp();
+
+    // Generate the first 4 Platforms that will always be there at the start.
+    for (int i = 0; i < 4; i++) {
+      platformHolder.generatePlatform(this, 8, true);
+    }
+    fillScreen();
+  }
+
   @override
   void render(Canvas canvas) {
     gameState.render(canvas);
     circuitBackground.render(canvas);
-    // background1.render(
-    //   canvas,
-    //   position: Vector2(0, 0),
-    //   size: Vector2(size.y * (background!.width / background!.height), size.y),
-    // );
     super.render(canvas);
     final fpsCount = fps(1);
     textPaint.render(
@@ -188,20 +203,18 @@ class MyGame extends BaseGame with PanDetector, TapDetector, KeyboardEvents {
     coinHolder.update(dt);
     wireHolder.update(dt);
     bugHolder.update(dt);
+    if (shouldReset) {
+      print("should reset");
+      reset();
+    }
   }
 
   @override
   void onResize(Vector2 size) {
     super.onResize(size);
     blockSize = size.y / 9;
-    runnerSize = Vector2(
-      size.y / 9,
-      size.y / 9,
-    );
 
     if (loaded) {
-      // backgroundSize =
-      //     Vector2(size.y * (background!.width / background!.height), size.y);
       gameState.setSize(size);
     }
   }