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border constraints as well as some other useful goodies

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This commit is contained in:
Ellpeck 2019-08-07 16:32:19 +02:00
parent 3cde47c762
commit 2ead7c6c6b
2 changed files with 22 additions and 6 deletions
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26
MLEM/Cameras/Camera.cs
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@ -15,8 +15,16 @@ namespace MLEM.Cameras {
return Matrix.CreateScale(this.Scale, this.Scale, 1) * Matrix.CreateTranslation(new Vector3(pos, 0)); return Matrix.CreateScale(this.Scale, this.Scale, 1) * Matrix.CreateTranslation(new Vector3(pos, 0));
} }
} }
public Vector2 LookingPosition => this.Position + new Vector2(this.Viewport.Width / 2, this.Viewport.Height / 2) / this.Scale; public Vector2 Max {
get => this.Position + this.ScaledViewport;
set => this.Position = value - this.ScaledViewport;
}
public Vector2 LookingPosition {
get => this.Position + this.ScaledViewport / 2;
set => this.Position = value - this.ScaledViewport / 2;
}
public Viewport Viewport => this.graphicsDevice.Viewport; public Viewport Viewport => this.graphicsDevice.Viewport;
public Vector2 ScaledViewport => new Vector2(this.Viewport.Width, this.Viewport.Height) / this.Scale;
private readonly bool roundPosition; private readonly bool roundPosition;
private readonly GraphicsDevice graphicsDevice; private readonly GraphicsDevice graphicsDevice;
@ -26,10 +34,6 @@ namespace MLEM.Cameras {
this.roundPosition = roundPosition; this.roundPosition = roundPosition;
} }
public void LookAt(Vector2 worldPos) {
this.Position = worldPos - new Vector2(this.Viewport.Width / 2, this.Viewport.Height / 2) / this.Scale;
}
public Vector2 ToWorldPos(Vector2 pos) { public Vector2 ToWorldPos(Vector2 pos) {
return Vector2.Transform(pos, Matrix.Invert(this.ViewMatrix)); return Vector2.Transform(pos, Matrix.Invert(this.ViewMatrix));
} }
@ -42,5 +46,17 @@ namespace MLEM.Cameras {
return (this.ToWorldPos(Vector2.Zero), this.ToWorldPos(new Vector2(this.Viewport.Width, this.Viewport.Height))); return (this.ToWorldPos(Vector2.Zero), this.ToWorldPos(new Vector2(this.Viewport.Width, this.Viewport.Height)));
} }
public void ConstrainWorldBounds(Vector2 min, Vector2 max) {
if (this.Position.X < min.X)
this.Position.X = min.X;
if (this.Position.Y < min.Y)
this.Position.Y = min.Y;
if (this.Max.X > max.X)
this.Max = new Vector2(max.X, this.Max.Y);
if (this.Max.Y > max.Y)
this.Max = new Vector2(this.Max.X, max.Y);
}
} }
} }

2
MLEM/MLEM.csproj
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@ -10,7 +10,7 @@
<PackageProjectUrl>https://github.com/Ellpeck/MLEM</PackageProjectUrl> <PackageProjectUrl>https://github.com/Ellpeck/MLEM</PackageProjectUrl>
<RepositoryUrl>https://github.com/Ellpeck/MLEM</RepositoryUrl> <RepositoryUrl>https://github.com/Ellpeck/MLEM</RepositoryUrl>
<PackageLicenseUrl>https://github.com/Ellpeck/MLEM/blob/master/LICENSE</PackageLicenseUrl> <PackageLicenseUrl>https://github.com/Ellpeck/MLEM/blob/master/LICENSE</PackageLicenseUrl>
<Version>1.0.9</Version> <Version>1.0.10</Version>
</PropertyGroup> </PropertyGroup>
<ItemGroup> <ItemGroup>