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basic group ready kind of

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This commit is contained in:
Mike 2020-06-03 15:25:27 -07:00
parent 8fd20e3b42
commit 4cd3d37657
2 changed files with 25 additions and 2 deletions
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14
zig-ecs/src/ecs/groups.zig
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@ -97,7 +97,7 @@ test "BasicGroup creation" {
std.debug.assert(group.len() == 0);
}
test "BasicGroup exclides" {
test "BasicGroup excludes" {
var reg = Registry.init(std.testing.allocator);
defer reg.deinit();
@ -118,4 +118,16 @@ test "BasicGroup exclides" {
reg.add(e0, @as(u32, 55));
std.debug.assert(group.len() == 0);
}
test "BasicGroup create late" {
var reg = Registry.init(std.testing.allocator);
defer reg.deinit();
var e0 = reg.create();
reg.add(e0, @as(i32, 44));
reg.add(e0, @as(u32, 55));
var group = reg.group(.{}, .{ i32, u32 }, .{});
std.testing.expectEqual(group.len(), 1);
}

13
zig-ecs/src/ecs/registry.zig
View File

@ -417,6 +417,7 @@ pub const Registry = struct {
// we need to create a new GroupData
var new_group_data = GroupData.initPtr(self.allocator, self, hash, &[_]u32{}, includes_arr[0..], excludes_arr[0..]);
self.groups.append(new_group_data) catch unreachable;
// wire up our listeners
inline for (owned) |t| self.onConstruct(t).connectBound(new_group_data, "maybeValidIf");
@ -427,7 +428,17 @@ pub const Registry = struct {
inline for (includes) |t| self.onDestruct(t).connectBound(new_group_data, "discardIf");
inline for (excludes) |t| self.onConstruct(t).connectBound(new_group_data, "discardIf");
self.groups.append(new_group_data) catch unreachable;
// pre-fill the GroupData with any existing entitites that match
if (owned.len == 0) {
var tmp_view = self.view(owned ++ includes, excludes);
var view_iter = tmp_view.iterator();
while (view_iter.next()) |entity| {
new_group_data.entity_set.add(entity);
}
} else {
unreachable;
}
return BasicGroup(includes.len, excludes.len).init(&new_group_data.entity_set, self, includes_arr, excludes_arr);
}