Merge branch 'master' into upstream-merge-29839

code/game/atoms.dm

@@ -304,6 +304,7 @@
 /atom/proc/ex_act(severity, target)
 	set waitfor = FALSE
 	contents_explosion(severity, target)
+	SendSignal(COMSIG_ATOM_EX_ACT, severity, target)
 
 /atom/proc/blob_act(obj/structure/blob/B)
 	return
@@ -468,8 +469,8 @@ GLOBAL_LIST_EMPTY(blood_splatter_icons)
 /atom/proc/singularity_act()
 	return
 
-/atom/proc/singularity_pull()
-	return
+/atom/proc/singularity_pull(obj/singularity/S, current_size)
+	SendSignal(COMSIG_ATOM_SING_PULL, S, current_size)
 
 /atom/proc/acid_act(acidpwr, acid_volume)
 	return