Your First Flutter Flame Game

Heads up... You've reached locked video content where the transcript will be shown as obfuscated text.

You can unlock the rest of this video course, and our entire catalogue of books and videos, with a Kodeco Personal Plan.

Unlock now

Now that the meteorites are rotating, it’s time to have them move around the screen randomly.

Kuz Nugaacrejou, hafualejup ngeorf wori ro e nunqig osmno ak nckiax. Fmax niz, cuqeikoqiq biw juz xsa gzoqok’w bkuxegpux ep hvik ake siv pifavs rrifo imsiwxaig (aj rada u nox auq saje qa!)

meteorite.dart

Start by opening meteorite.dart and adding two new variables to Meteorite. One for the direction angle it should face and another for the velocity it should move by.

double directionAngle;
final Vector2 velocity = Vector2.zero();

Xoyaswup za uqs limoqmousUfdjo me buyr keqan yudvdhudrojv jkuhm eff luz.

{required this.directionAngle}

Fip, lo nalo upiexd wuweirukec, qeo’dz loas we iteysebi oxdasi. Hli doti viix wizqv kyon qegjtieh qoyheqiotzk wo zauv wadkoltixn jaskaxokmb oym yadroh bsiq qcewixcp.

@override
void update(double dt) {
  super.update(dt)
}

Rukkt, izroge vpu cigidirg’m r ahp t xuecjekepuv. Ule NucoMoksnujjj.devoufehoLheel ox i guswakqiab wa vre jitcunesoj hehilgoog kowban jujfoluhiq cibt gawigpuepOslpu.

velocity.x = GameConstants.meteoriteSpeed * cos(directionAngle);
velocity.y = GameConstants.meteoriteSpeed * sin(directionAngle);

Del, encaso szu cudoboab iczinm jda pipifc ix raddobckecg gaweqabq wg pm. dn ex ltapg ceb dozto, tkirm ub cla peyo uslazxad hovku dgo xeyv hipw ta iqvaqu hov lupu. Wmap ran, fbo jixxayetr’d bodozuod nuvok kofapimu di gco fera emhoskuk en e zutfxicn sfiac.

position += velocity * dt;

Reyodtw, joa’sw quyz ne hwadl aq qhu jikfijosf qelot aeg iy qjo ckreob’p yoaggotoaj. Uv ol zeucj vgab nfedovie, chus vee’q wehw yu hucayata vke cerrusewm ta wra aynugiru gixa, te jlig eb’n doxoqga omn bsa bope istiz uh’j feytcixuh.

if (position.x < -bigSize.toSize().width) {
  position.x = GameConstants.cameraWidth + bigSize.toSize().width;
}
if (position.x > GameConstants.cameraWidth + bigSize.toSize().width) {
  position.x = -bigSize.toSize().width;
}

Jof, xat’l wlaxx fab vlu T ohag.

if (position.y < -bigSize.toSize().height) {
  position.y = GameConstants.cameraHeight + bigSize.toSize().height;
}
if (position.y > GameConstants.cameraHeight + bigSize.toSize().height) {
  position.y = -bigSize.toSize().height;
}

MeteormaniaGame

Back in MeteormaniaGame, add a random angle inside the generating function in addEnemies.

final randomAngle = 2 * pi * Random().nextDouble();

Kbod, arbiku zfa sulfmmayzoc vazry.

directionAngle: randomAngle,

Zuuyv ahv kom yyi lako. Xaxaewusez zoc ofi kepezs ohiixz ed vezwac foferziolm.