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This commit is contained in:
Mike 2020-06-05 14:17:25 -07:00
parent 3fa455dc48
commit a547add727
2 changed files with 24 additions and 23 deletions
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23
zig-ecs/src/ecs/utils.zig
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@ -1,5 +1,28 @@
const std = @import("std");
pub const ErasedPtr = struct {
ptr: usize,
pub fn init(ptr: var) ErasedPtr {
if (@sizeOf(@TypeOf(ptr)) == 0) {
return .{ .ptr = undefined };
}
return .{ .ptr = @ptrToInt(ptr) };
}
pub fn as(self: ErasedPtr, comptime T: type) *T {
if (@sizeOf(T) == 0)
return @as(T, undefined);
return self.asPtr(*T);
}
pub fn asPtr(self: ErasedPtr, comptime PtrT: type) PtrT {
if (@sizeOf(PtrT) == 0)
return @as(PtrT, undefined);
return @intToPtr(PtrT, self.ptr);
}
};
/// sorts items using lessThan and keeps sub_items with the same sort
pub fn sortSub(comptime T1: type, comptime T2: type, items: []T1, sub_items: []T2, lessThan: fn (lhs: T1, rhs: T1) bool) void {
var i: usize = 1;

24
zig-ecs/src/resources/cache.zig
View File

@ -1,27 +1,5 @@
const std = @import("std");
pub const ErasedPtr = struct {
ptr: usize,
pub fn init(ptr: var) ErasedPtr {
if (@sizeOf(@TypeOf(ptr)) == 0) {
return .{ .ptr = undefined };
}
return .{ .ptr = @ptrToInt(ptr) };
}
pub fn as(self: ErasedPtr, comptime T: type) *T {
if (@sizeOf(T) == 0)
return @as(T, undefined);
return self.asPtr(*T);
}
pub fn asPtr(self: ErasedPtr, comptime PtrT: type) PtrT {
if (@sizeOf(PtrT) == 0)
return @as(PtrT, undefined);
return @intToPtr(PtrT, self.ptr);
}
};
const ErasedPtr = @import("../ecs/utils.zig").ErasedPtr;
/// Simple cache for resources of a given type. TLoader should be a struct that implements a single
/// method: load(args: var) *T. If any resource has a deinit method it will be called when clear