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Update handles.zig

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RUSshy 2021-07-17 14:04:10 +02:00 committed by GitHub
parent 7fd238b638
commit b900dfde2d
1 changed files with 4 additions and 4 deletions
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8
zig-ecs/src/ecs/handles.zig
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@ -1,4 +1,5 @@
const std = @import("std");
const registry = @import("registry.zig");
/// generates versioned "handles" (https://floooh.github.io/2018/06/17/handles-vs-pointers.html)
/// you choose the type of the handle (aka its size) and how much of that goes to the index and the version.
@ -38,7 +39,6 @@ pub fn Handles(comptime HandleType: type, comptime IndexType: type, comptime Ver
return h;
}
}
return null;
}
};
@ -59,15 +59,15 @@ pub fn Handles(comptime HandleType: type, comptime IndexType: type, comptime Ver
}
pub fn extractId(_: Self, handle: HandleType) IndexType {
return @truncate(IndexType, handle);
return @truncate(IndexType, handle & @as(IndexType, registry.entity_traits.entity_mask));
}
pub fn extractVersion(_: Self, handle: HandleType) VersionType {
return @truncate(VersionType, handle >> @bitSizeOf(IndexType));
return @truncate(VersionType, handle >> registry.entity_traits.entity_shift);
}
fn forge(id: IndexType, version: VersionType) HandleType {
return id | @as(HandleType, version) << @bitSizeOf(IndexType);
return id | @as(HandleType, version) << registry.entity_traits.entity_shift;
}
pub fn create(self: *Self) HandleType {