Build mode drag-and-build functionality (#8936)

code/_onclick/click.dm

@@ -36,6 +36,10 @@
 /mob/proc/OnMouseDrag(src_object, over_object, src_location, over_location, src_control, over_control, params)
 	if(istype(loc, /atom))
 		var/atom/A = loc
+		if(client && client.buildmode)
+			build_click(src, client.buildmode, params, A)
+			return
+
 		if(A.RelayMouseDrag(src_object, over_object, src_location, over_location, src_control, over_control, params, src))
 			return
 

code/modules/client/client procs.dm

@@ -734,3 +734,20 @@
 		sleep(1)
 	else
 		stoplag(5)
+
+/client/MouseDrag(src_object, over_object, src_location, over_location, src_control, over_control, params)
+	. = ..()
+
+	if(over_object)
+		var/mob/living/M = mob
+		if(istype(get_turf(over_object), /atom))
+			var/atom/A = get_turf(over_object)
+			if(src && src.buildmode)
+				build_click(M, src.buildmode, params, A)
+				return
+
+		if(istype(M) && !M.incapacitated())
+			var/obj/item/gun/gun = mob.get_active_hand()
+			if(istype(gun) && gun.can_autofire())
+				M.set_dir(get_dir(M, over_object))
+				gun.Fire(get_turf(over_object), mob, params, (get_dist(over_object, mob) <= 1), FALSE)

code/modules/projectiles/gun.dm

@@ -824,14 +824,4 @@
 //Autofire
 
 /obj/item/gun/proc/can_autofire()
-	return (can_autofire && world.time >= next_fire_time)
-
-/client/MouseDrag(src_object, over_object, src_location, over_location, src_control, over_control, params)
-	. = ..()
-	if(over_object)
-		var/mob/living/M = mob
-		if(istype(M) && !M.incapacitated())
-			var/obj/item/gun/gun = mob.get_active_hand()
-			if(istype(gun) && gun.can_autofire())
-				M.set_dir(get_dir(M, over_object))
-				gun.Fire(get_turf(over_object), mob, params, (get_dist(over_object, mob) <= 1), FALSE)
+	return (can_autofire && world.time >= next_fire_time)

html/changelogs/Sindorman-build.yml

@@ -0,0 +1,41 @@
+################################
+# Example Changelog File
+#
+# Note: This file, and files beginning with ".", and files that don't end in ".yml" will not be read. If you change this file, you will look really dumb.
+#
+# Your changelog will be merged with a master changelog. (New stuff added only, and only on the date entry for the day it was merged.)
+# When it is, any changes listed below will disappear.
+#
+# Valid Prefixes: 
+#   bugfix
+#   wip (For works in progress)
+#   tweak
+#   soundadd
+#   sounddel
+#   rscadd (general adding of nice things)
+#   rscdel (general deleting of nice things)
+#   imageadd
+#   imagedel
+#   maptweak
+#   spellcheck (typo fixes)
+#   experiment
+#   balance
+#   admin
+#   backend
+#   security
+#   refactor
+#################################
+
+# Your name.  
+author: PoZe
+
+# Optional: Remove this file after generating master changelog.  Useful for PR changelogs that won't get used again.
+delete-after: True
+
+# Any changes you've made.  See valid prefix list above.
+# INDENT WITH TWO SPACES.  NOT TABS.  SPACES.
+# SCREW THIS UP AND IT WON'T WORK.
+# Also, all entries are changed into a single [] after a master changelog generation. Just remove the brackets when you add new entries.
+# Please surround your changes in  double quotes ("), as certain characters otherwise screws up compiling. The quotes will not show up in the changelog.
+changes: 
+  - rscadd: "Admin build mode now supports drag-and-build. Where you can hold mouse to continously build."