Ported action button system from Paradise/tg

code/game/objects/items.dm

@@ -21,8 +21,9 @@
 	var/max_heat_protection_temperature //Set this variable to determine up to which temperature (IN KELVIN) the item protects against heat damage. Keep at null to disable protection. Only protects areas set by heat_protection flags
 	var/min_cold_protection_temperature //Set this variable to determine down to which temperature (IN KELVIN) the item protects against cold damage. 0 is NOT an acceptable number due to if(varname) tests!! Keep at null to disable protection. Only protects areas set by cold_protection flags
 
-	var/icon_action_button //If this is set, The item will make an action button on the player's HUD when picked up. The button will have the icon_action_button sprite from the screen1_action.dmi file.
-	var/action_button_name //This is the text which gets displayed on the action button. If not set it defaults to 'Use [name]'. Note that icon_action_button needs to be set in order for the action button to appear.
+	var/datum/action/item_action/action = null
+	var/action_button_name //It is also the text which gets displayed on the action button. If not set it defaults to 'Use [name]'. If it's not set, there'll be no button.
+	var/action_button_is_hands_free = 0 //If 1, bypass the restrained, lying, and stunned checks action buttons normally test for
 
 	//Since any item can now be a piece of clothing, this has to be put here so all items share it.
 	var/flags_inv //This flag is used to determine when items in someone's inventory cover others. IE helmets making it so you can't see glasses, etc.
@@ -398,9 +399,7 @@ var/list/global/slot_flags_enumeration = list(
 //The default action is attack_self().
 //Checks before we get to here are: mob is alive, mob is not restrained, paralyzed, asleep, resting, laying, item is on the mob.
 /obj/item/proc/ui_action_click()
-	if( src in usr )
-		attack_self(usr)
-
+	attack_self(usr)
 
 /obj/item/proc/IsShield()
 	return 0

code/game/objects/items/devices/flashlight.dm

@@ -10,7 +10,7 @@
 
 	matter = list(DEFAULT_WALL_MATERIAL = 50,"glass" = 20)
 
-	icon_action_button = "action_flashlight"
+	action_button_name = "Toggle Flashlight"
 	var/on = 0
 	var/brightness_on = 4 //luminosity when on
 
@@ -141,7 +141,7 @@
 	light_color = "#e58775"
 	icon_state = "flare"
 	item_state = "flare"
-	icon_action_button = null	//just pull it manually, neckbeard.
+	action_button_name = null //just pull it manually, neckbeard.
 	var/fuel = 0
 	var/on_damage = 7
 	var/produce_heat = 1500

code/game/objects/items/weapons/tanks/jetpack.dm

@@ -11,7 +11,7 @@
 	var/on = 0.0
 	var/stabilization_on = 0
 	var/volume_rate = 500              //Needed for borg jetpack transfer
-	icon_action_button = "action_jetpack"
+	action_button_name = "Toggle Jetpack"
 
 /obj/item/weapon/tank/jetpack/New()
 	..()