[PORT/SPRITES] New BSA beam sprite (#26925)

* Better BSA beam sprite

* Changed front_turf finding

---------

Co-authored-by: Adrer <adrermail@gmail.com>

code/game/objects/effects/temporary_visuals/misc_visuals.dm

@@ -520,3 +520,20 @@
 	icon = 'icons/effects/96x96.dmi'
 	icon_state = "warning"
 	duration = 3 SECONDS
+
+/obj/effect/temp_visual/bsa_splash
+	name = "\improper Bluespace energy wave"
+	desc = "A massive, rippling wave of bluepace energy, all rapidly exhausting itself the moment it leaves the concentrated beam of light."
+	icon = 'icons/effects/beam_splash.dmi'
+	icon_state = "beam_splash_l"
+	layer = ABOVE_ALL_MOB_LAYER
+	pixel_y = -16
+	duration = 50
+
+/obj/effect/temp_visual/bsa_splash/Initialize(mapload, dir)
+	. = ..()
+	switch(dir)
+		if(WEST)
+			icon_state = "beam_splash_w"
+		if(EAST)
+			icon_state = "beam_splash_e"