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MoonTools.Bonk
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retarget to .net standard 2.0

generics
thatcosmonaut 2019-12-16 10:51:27 -08:00
parent c29b61992f
commit d60a5f4311
5 changed files with 48 additions and 19 deletions
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2
Bonk/AABB.cs
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@ -68,4 +68,4 @@ namespace MoonTools.Core.Bonk
return !(left == right); return !(left == right);
} }
} }
} }

11
Bonk/Bonk.csproj
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@ -1,7 +1,7 @@
<Project Sdk="Microsoft.NET.Sdk"> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup> <PropertyGroup>
<Version>5.0.1</Version> <Version>5.0.1</Version>
<TargetFramework>netstandard2.1</TargetFramework> <TargetFramework>netstandard2.0</TargetFramework>
<Description>.NET Core High Performance Collision Detection</Description> <Description>.NET Core High Performance Collision Detection</Description>
<PackageId>MoonTools.Core.Bonk</PackageId> <PackageId>MoonTools.Core.Bonk</PackageId>
<RootNamespace>MoonTools.Core.Bonk</RootNamespace> <RootNamespace>MoonTools.Core.Bonk</RootNamespace>
@ -19,8 +19,9 @@
<PrivateAssets>all</PrivateAssets> <PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets> <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference> </PackageReference>
<PackageReference Include="MoonTools.Core.Structs" Version="2.0.0" /> <PackageReference Include="MoonTools.Core.Structs" Version="2.1.0"/>
<PackageReference Include="morelinq" Version="3.2.0" /> <PackageReference Include="System.Collections.Immutable" Version="1.6.0"/>
<PackageReference Include="System.Collections.Immutable" Version="1.6.0" /> <PackageReference Include="System.Numerics.Vectors" Version="4.5.0"/>
<PackageReference Include="Microsoft.Bcl.HashCode" Version="1.1.0"/>
</ItemGroup> </ItemGroup>
</Project> </Project>

17
Bonk/Shapes/Polygon.cs
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@ -4,7 +4,6 @@ using System.Collections.Generic;
using System.Collections.Immutable; using System.Collections.Immutable;
using System.Numerics; using System.Numerics;
using MoonTools.Core.Structs; using MoonTools.Core.Structs;
using MoreLinq;
namespace MoonTools.Core.Bonk namespace MoonTools.Core.Bonk
{ {
@ -18,7 +17,7 @@ namespace MoonTools.Core.Bonk
public IEnumerable<Position2D> Vertices { get { return vertices; } } public IEnumerable<Position2D> Vertices { get { return vertices; } }
public int VertexCount { get { return vertices.Length; } } public int VertexCount { get { return vertices.Length; } }
// vertices are local to the origin // vertices are local to the origin
public Polygon(IEnumerable<Position2D> vertices) // TODO: remove this, params is bad because it allocates an array public Polygon(IEnumerable<Position2D> vertices) // TODO: remove this, params is bad because it allocates an array
@ -33,7 +32,19 @@ namespace MoonTools.Core.Bonk
public Vector2 Support(Vector2 direction, Transform2D transform) public Vector2 Support(Vector2 direction, Transform2D transform)
{ {
return Vertices.Select(vertex => Vector2.Transform(vertex, transform.TransformMatrix)).MaxBy(transformed => Vector2.Dot(transformed, direction)).First(); var maxDotProduct = float.NegativeInfinity;
var maxVertex = vertices[0].ToVector2();
foreach (var vertex in Vertices)
{
var transformed = Vector2.Transform(vertex, transform.TransformMatrix);
var dot = Vector2.Dot(transformed, direction);
if (dot > maxDotProduct)
{
maxVertex = transformed;
maxDotProduct = dot;
}
}
return maxVertex;
} }
public AABB AABB(Transform2D Transform2D) public AABB AABB(Transform2D Transform2D)

15
Bonk/Shapes/Rectangle.cs
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@ -3,7 +3,6 @@ using System.Collections.Generic;
using System.Linq; using System.Linq;
using System.Numerics; using System.Numerics;
using MoonTools.Core.Structs; using MoonTools.Core.Structs;
using MoreLinq;
namespace MoonTools.Core.Bonk namespace MoonTools.Core.Bonk
{ {
@ -38,7 +37,19 @@ namespace MoonTools.Core.Bonk
public Vector2 Support(Vector2 direction, Transform2D transform) public Vector2 Support(Vector2 direction, Transform2D transform)
{ {
return Vertices.Select(vertex => Vector2.Transform(vertex, transform.TransformMatrix)).MaxBy(transformed => Vector2.Dot(transformed, direction)).First(); var maxDotProduct = float.NegativeInfinity;
var maxVertex = new Vector2(MinX, MinY);
foreach (var vertex in Vertices)
{
var transformed = Vector2.Transform(vertex, transform.TransformMatrix);
var dot = Vector2.Dot(transformed, direction);
if (dot > maxDotProduct)
{
maxVertex = transformed;
maxDotProduct = dot;
}
}
return maxVertex;
} }
public AABB AABB(Transform2D Transform2D) public AABB AABB(Transform2D Transform2D)

22
Bonk/Shapes/Simplex.cs
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@ -2,7 +2,6 @@ using System.Linq;
using System.Collections.Generic; using System.Collections.Generic;
using System.Numerics; using System.Numerics;
using MoonTools.Core.Structs; using MoonTools.Core.Structs;
using MoreLinq;
using System; using System;
namespace MoonTools.Core.Bonk namespace MoonTools.Core.Bonk
@ -62,14 +61,21 @@ namespace MoonTools.Core.Bonk
return Bonk.AABB.FromTransformedVertices(Vertices, transform); return Bonk.AABB.FromTransformedVertices(Vertices, transform);
} }
public Vector2 Support(Vector2 direction)
{
return Vertices.MaxBy(vertex => Vector2.Dot(vertex, direction)).First();
}
public Vector2 Support(Vector2 direction, Transform2D transform) public Vector2 Support(Vector2 direction, Transform2D transform)
{ {
return Vector2.Transform(Support(direction), transform.TransformMatrix); var maxDotProduct = float.NegativeInfinity;
var maxVertex = a;
foreach (var vertex in Vertices)
{
var transformed = Vector2.Transform(vertex, transform.TransformMatrix);
var dot = Vector2.Dot(transformed, direction);
if (dot > maxDotProduct)
{
maxVertex = transformed;
maxDotProduct = dot;
}
}
return maxVertex;
} }
public override bool Equals(object obj) public override bool Equals(object obj)
@ -106,4 +112,4 @@ namespace MoonTools.Core.Bonk
return !(a == b); return !(a == b);
} }
} }
} }