Clicks refactor (#20321)

Added various events to the dcs system in regards to click handling.
Refactored various mouse related procs.
Fixed MUI mask.
Fixed AI jump on double click.
Fixed some runtimes with the click handler system.
Updated the click handler system.
Fixed fireman carry.

code/datums/components/_component.dm

@@ -4,7 +4,7 @@
  * The component datum
  *
  * A component should be a single standalone unit
- * of functionality, that works by receiving signals from it's parent
+ * of functionality, that works by receiving signals from its parent
  * object to provide some single functionality (i.e a slippery component)
  * that makes the object it's attached to cause people to slip over.
  * Useful when you want shared behaviour independent of type inheritance
@@ -17,15 +17,6 @@
 	 */
 	var/dupe_mode = COMPONENT_DUPE_HIGHLANDER
 
-	/**
-	 * The type to check for duplication
-	 *
-	 * `null` means exact match on `type` (default)
-	 *
-	 * Any other type means that and all subtypes
-	 */
-	var/dupe_type
-
 	/// The datum this components belongs to
 	var/datum/parent
 
@@ -57,7 +48,7 @@
 		qdel(src, TRUE, TRUE)
 		return
 
-	_JoinParent(parent)
+	_JoinParent()
 
 /**
  * Called during component creation with the same arguments as in new excluding parent.
@@ -217,7 +208,7 @@
  *
  * Use this to do any special cleanup you might need to do before being deregged from an object
  */
-/datum/component/proc/PreTransfer()
+/datum/component/proc/PreTransfer(datum/new_parent)
 	return
 
 /**
@@ -227,7 +218,7 @@
  *
  * Do not call `qdel(src)` from this function, `return COMPONENT_INCOMPATIBLE` instead
  */
-/datum/component/proc/PostTransfer()
+/datum/component/proc/PostTransfer(datum/new_parent)
 	return COMPONENT_INCOMPATIBLE //Do not support transfer by default as you must properly support it
 
 /**
@@ -328,7 +319,6 @@
 		CRASH("[component_type] attempted instantiation!")
 
 	var/dupe_mode = initial(component_type.dupe_mode)
-	var/dupe_type = initial(component_type.dupe_type)
 	var/uses_sources = (dupe_mode == COMPONENT_DUPE_SOURCES)
 	if(uses_sources && !source)
 		CRASH("Attempted to add a sourced component of type '[component_type]' to '[type]' without a source!")
@@ -339,10 +329,7 @@
 
 	raw_args[1] = src
 	if(dupe_mode != COMPONENT_DUPE_ALLOWED && dupe_mode != COMPONENT_DUPE_SELECTIVE && dupe_mode != COMPONENT_DUPE_SOURCES)
-		if(!dupe_type)
-			old_component = GetExactComponent(component_type)
-		else
-			old_component = GetComponent(dupe_type)
+		old_component = GetComponent(component_type)
 
 		if(old_component)
 			switch(dupe_mode)
@@ -434,11 +421,11 @@
  * Removes the component from parent, ends up with a null parent
  * Used as a helper proc by the component transfer proc, does not clean up the component like Destroy does
  */
-/datum/component/proc/ClearFromParent()
+/datum/component/proc/ClearFromParent(datum/new_parent)
 	if(!parent)
 		return
 	var/datum/old_parent = parent
-	PreTransfer()
+	PreTransfer(new_parent)
 	_RemoveFromParent()
 	parent = null
 	SEND_SIGNAL(old_parent, COMSIG_COMPONENT_REMOVING, src)
@@ -455,16 +442,17 @@
 	if(!target || target.parent == src)
 		return
 	if(target.parent)
-		target.ClearFromParent()
-	target.parent = src
-	var/result = target.PostTransfer()
+		target.ClearFromParent(src)
+	var/result = target.PostTransfer(src)
 	switch(result)
 		if(COMPONENT_INCOMPATIBLE)
 			var/c_type = target.type
 			qdel(target)
 			CRASH("Incompatible [c_type] transfer attempt to a [type]!")
 
-	if(target == AddComponent(target))
+	AddComponent(target)
+	if(!QDELETED(target))
+		target.parent = src
 		target._JoinParent()
 
 /**
@@ -482,13 +470,13 @@
 	for(var/component_key in dc)
 		var/component_or_list = dc[component_key]
 		if(islist(component_or_list))
-			for(var/datum/component/I in component_or_list)
-				if(I.can_transfer)
-					target.TakeComponent(I)
+			for(var/datum/component/component in component_or_list)
+				if(component.can_transfer)
+					target.TakeComponent(component)
 		else
-			var/datum/component/C = component_or_list
-			if(C.can_transfer)
-				target.TakeComponent(C)
+			var/datum/component/component = component_or_list
+			if(!QDELETED(component) && component.can_transfer)
+				target.TakeComponent(component)
 
 /**
  * Return the object that is the host of any UI's that this component has

code/datums/components/eye/_eye.dm

@@ -17,7 +17,7 @@
 	QDEL_LIST(actions)
 	. = ..()
 
-/datum/component/eye/proc/look(var/mob/new_looker, var/list/eye_args)
+/datum/component/eye/proc/look(mob/new_looker, list/eye_args)
 	if(new_looker.eyeobj || current_looker)
 		return FALSE
 	LAZYINSERT(eye_args, get_turf(current_looker), 1) //Make sure that a loc is provided to the eye

code/datums/components/eye/freelook.dm

@@ -1,12 +1,14 @@
-//For mobs connecting to the station's cameranet without needing AI procs
+/**
+ * Freelook eye component
+ *
+ * For mobs connecting to the station's cameranet without needing AI procs
+ *
+ * For mobs connecting to other visualnets, call set_visualnet() with the visualnet to use
+ */
 /datum/component/eye/freelook
 	eye_type = /mob/abstract/eye/freelook
 
-//For mobs connecting to other visualnets. Pass visualnet as eye_args in look()
-/datum/component/eye/freelook
-	eye_type = /mob/abstract/eye
-
-/datum/component/eye/freelook/proc/set_visualnet(var/datum/visualnet/net)
+/datum/component/eye/freelook/proc/set_visualnet(datum/visualnet/net = GLOB.cameranet)
 	if(component_eye)
 		var/mob/abstract/eye/eye = component_eye
 		if(istype(eye))