X-Git-Url: http://nitlanguage.org

diff --git a/lib/gamnit/flat.nit b/lib/gamnit/flat.nit
index f7f7c4a..cafac8a 100644
--- a/lib/gamnit/flat.nit
+++ b/lib/gamnit/flat.nit
@@ -42,6 +42,7 @@ import performance_analysis
 
 import gamnit
 import gamnit::cameras_cache
+intrude import gamnit::cameras
 import gamnit::dynamic_resolution
 import gamnit::limit_fps
 import gamnit::camera_control
@@ -633,6 +634,26 @@ redef class Point3d[N]
 	end
 end
 
+redef class OffsetPoint3d
+	redef fun x=(v)
+	do
+		if isset _x and v != x then needs_update
+		super
+	end
+
+	redef fun y=(v)
+	do
+		if isset _y and v != y then needs_update
+		super
+	end
+
+	redef fun z=(v)
+	do
+		if isset _z and v != z then needs_update
+		super
+	end
+end
+
 # Set of sprites sorting them into different `SpriteContext`
 private class SpriteSet
 	super HashSet[Sprite]