firo_runner/lib/BugHolder.dart

import 'dart:math';

import 'package:firo_runner/Platform.dart';
import 'package:flame/flame.dart';

import 'Bug.dart';
import 'main.dart';

class BugHolder {
  var bug;
  var breaking;
  Random random = Random();

  late List<List<Bug>> bugs = [];

  Future loadBugs() async {
    bug = await Flame.images.load("bug-frames.png");
    breaking = await Flame.images.load("bug-break-frames.png");
    for (int i = 0; i < 9; i++) {
      bugs.add([]);
    }
  }

  getBug(String state) {
    switch (state) {
      case "normal":
        return bug;
      default:
        return breaking;
    }
  }

  bool generateBug(MyGame gameRef, int level, bool force) {
    if (bugs[level].isNotEmpty) {
      return false;
    }

    if (random.nextInt(100) > 25) {
      return true;
    } else {
      int nearestPlatform = level <= 0
          ? 0
          : level <= 3
              ? 2
              : level <= 6
                  ? 5
                  : 8;

      Platform? platform =
          gameRef.platformHolder.getPlatformOffScreen(nearestPlatform);
      double xCoordinate = -100;

      if (level == 0) {
        xCoordinate = gameRef.size.x;
      } else if (platform != null) {
        xCoordinate = platform.sprite.x;
      } else {
        return false;
      }

      Bug bug = Bug(gameRef);
      bug.setPosition(xCoordinate, gameRef.blockSize * level);

      if (gameRef.isTooNearOtherObstacles(bug.sprite.toRect())) {
        return false;
      }

      bugs[level].add(bug);
      gameRef.add(bug.sprite);
      if (platform != null) {
        platform.removeChildren.add(() {
          bugs[level].remove(bug);
          bug.remove();
        });
      }
      return false;
    }
  }

  int totalBugs() {
    int total = 0;
    for (List<Bug> levelBugs in bugs) {
      total += levelBugs.length;
    }
    return total;
  }

  void update(double dt) {
    for (List<Bug> bugLevel in bugs) {
      for (Bug p in bugLevel) {
        p.update(dt);
      }
    }
  }

  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();
          bugLevel.removeAt(i);
          continue;
        }
        i++;
      }
    }
  }
}