ref(event): split Size into two Points (one for the size and one for the anchor / origin)

src/point.zig

@@ -0,0 +1,60 @@
+pub const Point = packed struct {
+    x: u16 = 0,
+    y: u16 = 0,
+
+    pub fn add(this: @This(), other: @This()) @This() {
+        return .{
+            .x = this.x + other.x,
+            .y = this.y + other.y,
+        };
+    }
+
+    pub fn max(this: @This(), other: @This()) @This() {
+        return .{
+            .x = @max(this.x, other.x),
+            .y = @max(this.y, other.y),
+        };
+    }
+
+    test "adding" {
+        const testing = @import("std").testing;
+
+        const a: @This() = .{
+            .x = 10,
+            .y = 20,
+        };
+
+        const b: @This() = .{
+            .x = 20,
+            .y = 10,
+        };
+
+        try testing.expectEqual(@This(){
+            .x = 30,
+            .y = 30,
+        }, a.add(b));
+    }
+
+    test "maximum" {
+        const testing = @import("std").testing;
+
+        const a: @This() = .{
+            .x = 10,
+            .y = 20,
+        };
+
+        const b: @This() = .{
+            .x = 20,
+            .y = 10,
+        };
+
+        try testing.expectEqual(@This(){
+            .x = 20,
+            .y = 20,
+        }, a.max(b));
+    }
+};
+
+test {
+    _ = Point;
+}