A lighting fixture (120, 220, 320, 420, 520) configured to be placed within a room including multiple surfaces, comprising: a housing; characterized in that the lighting fixture (120, 220, 320, 420, 520) further comprises: at least two light-emitting diodes, LEDs, contained within the housing and configured to, when energized, project at least two spatially-limited lighting effects (124, 224, 324, 424) on a respective surface of the room; a mask placed over the at least two LEDs, the mask comprising at least two shaped apertures configured to respectively shape light emitted from the at least two LEDs so as to define respective shapes of the at least two lighting effects; at least two optical elements (122, 222, 322, 422, 522) placed over the mask, the at least two optical elements being shaped to respectively direct light emitted by the at least two LEDs onto the respective surface of the room; a controller contained within the housing and operably coupled to the at least two LEDs and configured to selectively energize the at least two LEDs to emit light and to cause the at least two projected lighting effects to carry at least two respective distinct coded light signals, wherein the at least two respective distinct coded light signals convey at least two respective light messages that that are associable with at least two respective distinct locations within the room. a housing; characterized in that the lighting fixture (120, 220, 320, 420, 520) further comprises: at least two light-emitting diodes, LEDs, contained within the housing and configured to, when energized, project at least two spatially-limited lighting effects (124, 224, 324, 424) on a respective surface of the room; a mask placed over the at least two LEDs, the mask comprising at least two shaped apertures configured to respectively shape light emitted from the at least two LEDs so as to define respective shapes of the at least two lighting effects; at least two optical elements (122, 222, 322, 422, 522) placed over the mask, the at least two optical elements being shaped to respectively direct light emitted by the at least two LEDs onto the respective surface of the room; a controller contained within the housing and operably coupled to the at least two LEDs and configured to selectively energize the at least two LEDs to emit light and to cause the at least two projected lighting effects to carry at least two respective distinct coded light signals, wherein the at least two respective distinct coded light signals convey at least two respective light messages that that are associable with at least two respective distinct locations within the room. at least two light-emitting diodes, LEDs, contained within the housing and configured to, when energized, project at least two spatially-limited lighting effects (124, 224, 324, 424) on a respective surface of the room; a mask placed over the at least two LEDs, the mask comprising at least two shaped apertures configured to respectively shape light emitted from the at least two LEDs so as to define respective shapes of the at least two lighting effects; at least two optical elements (122, 222, 322, 422, 522) placed over the mask, the at least two optical elements being shaped to respectively direct light emitted by the at least two LEDs onto the respective surface of the room; a controller contained within the housing and operably coupled to the at least two LEDs and configured to selectively energize the at least two LEDs to emit light and to cause the at least two projected lighting effects to carry at least two respective distinct coded light signals, wherein the at least two respective distinct coded light signals convey at least two respective light messages that that are associable with at least two respective distinct locations within the room.