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module: rename all_components -> component_types_by_name

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2024-05-04 12:45:29 -07:00
parent 7ccfcefa96
commit b37ece1b9a
4 changed files with 34 additions and 34 deletions
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10
src/module/query.zig
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@ -8,17 +8,17 @@ pub const QueryTag = enum {
};
/// A complex query for entities matching a given criteria
pub fn Query(comptime all_components: anytype) type {
pub fn Query(comptime component_types_by_name: anytype) type {
return union(QueryTag) {
// TODO: cleanup comptime
/// Enum matching a namespace. e.g. `.game` or `.physics2d`
pub const Namespace = std.meta.FieldEnum(@TypeOf(all_components));
pub const Namespace = std.meta.FieldEnum(@TypeOf(component_types_by_name));
// TODO: cleanup comptime
/// Enum matching a component within a namespace
/// e.g. `var a: Component(.physics2d) = .location`
pub fn Component(comptime namespace: Namespace) type {
const components = @field(all_components, @tagName(namespace));
const components = @field(component_types_by_name, @tagName(namespace));
if (@typeInfo(@TypeOf(components)).Struct.fields.len == 0) return enum {};
return std.meta.FieldEnum(@TypeOf(components));
}
@ -70,7 +70,7 @@ test "query" {
const Rotation = struct { degrees: f32 };
const all_components = ComponentTypesByName(.{
const component_types_by_name = ComponentTypesByName(.{
struct {
pub const name = .game;
pub const components = .{
@ -89,7 +89,7 @@ test "query" {
},
}){};
const Q = Query(all_components);
const Q = Query(component_types_by_name);
// Namespace type lets us select a single namespace.
try testing.expectEqual(@as(Q.Namespace, .game), .game);