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77 lines
2.4 KiB
77 lines
2.4 KiB
const std = @import("std");
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const warn = std.debug.warn;
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const ecs = @import("ecs");
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const Registry = @import("ecs").Registry;
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const Velocity = struct { x: f32 = 0, y: f32 = 0 };
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const Position = struct { x: f32 = 0, y: f32 = 0 };
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const Empty = struct {};
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const Sprite = struct { x: f32 = 0 };
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const Transform = struct { x: f32 = 0 };
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const Renderable = struct { x: f32 = 0 };
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const Rotation = struct { x: f32 = 0 };
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fn printStore(store: var, name: []const u8) void {
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warn("--- {} ---\n", .{name});
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for (store.set.dense.items) |e, i| {
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warn("{:3.0}", .{e});
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warn(" ({d:3.0})", .{store.instances.items[i]});
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}
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warn("\n", .{});
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}
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test "nested OwningGroups add/remove components" {
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var reg = Registry.init(std.testing.allocator);
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defer reg.deinit();
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var group1 = reg.group(.{Sprite}, .{Renderable}, .{});
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var group2 = reg.group(.{ Sprite, Transform }, .{Renderable}, .{});
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var group3 = reg.group(.{ Sprite, Transform }, .{ Renderable, Rotation }, .{});
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std.testing.expect(!reg.sortable(Sprite));
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std.testing.expect(!reg.sortable(Transform));
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std.testing.expect(reg.sortable(Renderable));
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var e1 = reg.create();
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reg.addTypes(e1, .{ Sprite, Renderable, Rotation });
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std.testing.expectEqual(group1.len(), 1);
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std.testing.expectEqual(group2.len(), 0);
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std.testing.expectEqual(group3.len(), 0);
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reg.add(e1, Transform{});
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std.testing.expectEqual(group3.len(), 1);
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reg.remove(Sprite, e1);
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std.testing.expectEqual(group1.len(), 0);
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std.testing.expectEqual(group2.len(), 0);
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std.testing.expectEqual(group3.len(), 0);
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}
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test "nested OwningGroups entity order" {
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var reg = Registry.init(std.testing.allocator);
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defer reg.deinit();
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var group1 = reg.group(.{Sprite}, .{Renderable}, .{});
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var group2 = reg.group(.{ Sprite, Transform }, .{Renderable}, .{});
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var i: usize = 0;
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while (i < 5) : (i += 1) {
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var e = reg.create();
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reg.add(e, Sprite{ .x = @intToFloat(f32, i) });
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reg.add(e, Renderable{ .x = @intToFloat(f32, i) });
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}
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std.testing.expectEqual(group1.len(), 5);
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std.testing.expectEqual(group2.len(), 0);
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var sprite_store = reg.assure(Sprite);
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var transform_store = reg.assure(Transform);
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printStore(sprite_store, "Sprite");
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reg.add(1, Transform{.x = 1});
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printStore(sprite_store, "Sprite");
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printStore(transform_store, "Transform");
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warn("group2.current: {}\n", .{group2.group_data.current});
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}
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