alysbrooks-public » games » isometric-park-fna

Location: alysbrooks-public/games/isometric-park-fna/ImGui.NET/RangeAccessor.cs

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Commit Description:
Add basic infrastructure to store and display visitor count....
Commit Description:
Add basic infrastructure to store and display visitor count. May eventually move to simulating visitors as entities. We'll see.
References:
r700:8fe8f6282cc6 m7-leisure
File last commit:
r16:2e10c6ae1d70 default
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ImGui.NET/RangeAccessor.cs
68 lines | 1.8 KiB | text/x-csharp | CSharpLexer
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using System;
using System.Runtime.CompilerServices;
using System.Text;
namespace ImGuiNET
{
public unsafe struct RangeAccessor<T> where T : struct
{
private static readonly int s_sizeOfT = Unsafe.SizeOf<T>();
public readonly void* Data;
public readonly int Count;
public RangeAccessor(IntPtr data, int count) : this(data.ToPointer(), count) { }
public RangeAccessor(void* data, int count)
{
Data = data;
Count = count;
}
public ref T this[int index]
{
get
{
if (index < 0 || index >= Count)
{
throw new IndexOutOfRangeException();
}
return ref Unsafe.AsRef<T>((byte*)Data + s_sizeOfT * index);
}
}
}
public unsafe struct RangePtrAccessor<T> where T : struct
{
public readonly void* Data;
public readonly int Count;
public RangePtrAccessor(IntPtr data, int count) : this(data.ToPointer(), count) { }
public RangePtrAccessor(void* data, int count)
{
Data = data;
Count = count;
}
public T this[int index]
{
get
{
if (index < 0 || index >= Count)
{
throw new IndexOutOfRangeException();
}
return Unsafe.Read<T>((byte*)Data + sizeof(void*) * index);
}
}
}
public static class RangeAccessorExtensions
{
public static unsafe string GetStringASCII(this RangeAccessor<byte> stringAccessor)
{
return Encoding.ASCII.GetString((byte*)stringAccessor.Data, stringAccessor.Count);
}
}
}