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Code Issues Packages Projects Releases Wiki Activity

Scale for PositionComponent (#892)

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* Draft of PositionComponent.scale

* Use matrix transformations

* Update tests to take matrix transform into consideration

* Add tests for collision detection with scale

* Rename ScaleEffect to SizeEffect

* Use transform matrix to prepare canvas

* Fix scaledSizeCache

* Add changelog entries and docs

* Dartdoc on public access methods

* Update packages/flame/CHANGELOG.md

Co-authored-by: Jochum van der Ploeg <jochum@vdploeg.net>

* Move cache classes to own directory

Co-authored-by: Jochum van der Ploeg <jochum@vdploeg.net>
This commit is contained in:
Lukas Klingsbo
2021-08-06 21:59:52 +02:00
committed by GitHub
parent 4860cac87f
commit 54fbd260bc
31 changed files with 497 additions and 150 deletions
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16
examples/lib/stories/effects/scale_effect.dart
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@ -3,6 +3,7 @@ import 'package:flame/effects.dart';
import 'package:flame/extensions.dart';
import 'package:flame/game.dart';
import 'package:flame/input.dart';
import 'package:flame/palette.dart';
import 'package:flutter/material.dart';
import '../../commons/square_component.dart';
@ -16,19 +17,26 @@ class ScaleEffectGame extends BaseGame with TapDetector {
square = SquareComponent()
..position.setValues(200, 200)
..anchor = Anchor.center;
square.paint = BasicPalette.white.paint()..style = PaintingStyle.stroke;
final childSquare = SquareComponent()
..position = Vector2.all(70)
..size = Vector2.all(20)
..anchor = Anchor.center;
square.addChild(childSquare);
add(square);
}
@override
void onTap() {
final s = grow ? 300.0 : 100.0;
final s = grow ? 3.0 : 1.0;
grow = !grow;
square.addEffect(
ScaleEffect(
size: Vector2.all(s),
speed: 250.0,
curve: Curves.bounceInOut,
scale: Vector2.all(s),
speed: 2.0,
curve: Curves.linear,
),
);
}