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ecs: allow components to have type void

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dweiller 2022-06-13 14:20:56 +10:00 • committed by Stephen Gutekanst
parent 52a67b1809
commit fa5afee5bc
1 changed files with 4 additions and 1 deletions
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5
ecs/src/entities.zig
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@ -177,6 +177,7 @@ pub const ArchetypeStorage = struct {
const fields = std.meta.fields(@TypeOf(row));
inline for (fields) |field, index| {
const ColumnType = field.field_type;
if (@sizeOf(ColumnType) == 0) continue;
const column = storage.columns[index];
const columnValues = @ptrCast([*]ColumnType, @alignCast(@alignOf(ColumnType), &storage.block[column.offset]));
columnValues[row_index] = @field(row, field.name);
@ -186,6 +187,7 @@ pub const ArchetypeStorage = struct {
/// Sets the value of the named components (columns) for the given row in the table.
pub fn set(storage: *ArchetypeStorage, gpa: Allocator, row_index: u32, name: []const u8, component: anytype) void {
const ColumnType = @TypeOf(component);
if (@sizeOf(ColumnType) == 0) return;
for (storage.columns) |column| {
if (!std.mem.eql(u8, column.name, name)) continue;
if (is_debug) {
@ -209,6 +211,7 @@ pub const ArchetypeStorage = struct {
pub fn get(storage: *ArchetypeStorage, gpa: Allocator, row_index: u32, name: []const u8, comptime ColumnType: type) ?ColumnType {
for (storage.columns) |column| {
if (!std.mem.eql(u8, column.name, name)) continue;
if (@sizeOf(ColumnType) == 0) return {};
if (is_debug) {
if (typeId(ColumnType) != column.typeId) {
const msg = std.mem.concat(gpa, u8, &.{
@ -515,7 +518,7 @@ pub const Entities = struct {
.name = name,
.typeId = typeId(@TypeOf(component)),
.size = @sizeOf(@TypeOf(component)),
.alignment = @alignOf(@TypeOf(component)),
.alignment = if (@sizeOf(@TypeOf(component)) == 0) 1 else @alignOf(@TypeOf(component)),
.offset = undefined,
};
std.sort.sort(Column, columns, {}, by_alignment_name);