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added easy scale origin function to custom draw groups

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Ellpeck 2020-03-18 16:47:14 +01:00
parent 739d337d49
commit cb56319924
1 changed files with 4 additions and 0 deletions
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MLEM.Ui/Elements/CustomDrawGroup.cs
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@ -42,6 +42,10 @@ namespace MLEM.Ui.Elements {
} }
} }
public void ScaleOrigin(float scale, Vector2? origin = null) {
this.Transform = Matrix.CreateScale(scale, scale, 0) * Matrix.CreateTranslation(new Vector3((1 - scale) * (origin ?? this.DisplayArea.Center), 0));
}
public delegate void BeginDelegate(CustomDrawGroup element, GameTime time, SpriteBatch batch, float alpha, BlendState blendState, SamplerState samplerState, Matrix matrix); public delegate void BeginDelegate(CustomDrawGroup element, GameTime time, SpriteBatch batch, float alpha, BlendState blendState, SamplerState samplerState, Matrix matrix);
public delegate Matrix TransformCallback(CustomDrawGroup element, GameTime time, Matrix matrix); public delegate Matrix TransformCallback(CustomDrawGroup element, GameTime time, Matrix matrix);