Migrating to flame v1.0.0 - flutter

Question

I'm Migrating to flame v1.0.0-rc8 from flame v0.29.4
and I can't find a good roadmap of how to get the initialDimensions, how to get the engine widget via engine.widget, how to init the Sprite object (Previously via Sprite('path_to_asset_file')), and how to set the width and height for SpriteComponent (Previously via SpriteComponent.rectangle).

Answer 1

These are several questions, so I'll give several answers:
How to get the inititialDimensions?
inititialDimensions is no longer needed, onGameResize is called before onLoad which will give you the size of the game. You can also get the size of the game by adding the HasGameRef mixin to your Components and call gameRef.size.
How to get the flutter widget?
You now wrap your game inside of a GameWidget instead of using .widget:
import 'package:flutter/material.dart';
import 'package:flame/game.dart';
void main() {
final myGame = MyGame();
runApp(
GameWidget(
game: myGame,
),
);
}
How to initialize a Sprite?
You usually want a SpriteComponent, and not a raw Sprite.
To create a Sprite:
class MyGame extends FlameGame {
Sprite player;
#override
Future<void> onLoad() async {
player = Sprite.load('player.png');
}
}
To create a SpriteComponent:
class MyGame extends FlameGame {
SpriteComponent player;
#override
Future<void> onLoad() async {
final sprite = await loadSprite('player.png');
player = SpriteComponent(sprite: sprite);
// And you usually want to add your component to the game too.
add(player);
}
}
How to set the size of a component?
Simply do component.size = Vector2(width, height); or component.width = width; + component.height = height