add: combo counter (#3881)

code/_onclick/hud/_defines.dm

@@ -37,6 +37,7 @@
 #define ui_storage1 "CENTER+1:18,SOUTH:5"
 #define ui_storage2 "CENTER+2:20,SOUTH:5"
 #define ui_pda "CENTER+3:22,SOUTH:5"
+#define ui_combo "CENTER+4:24,SOUTH+1:7" //combo meter for martial arts
 
 #define ui_alien_head "4:12,1:5"	//aliens
 #define ui_alien_oclothing "5:14,1:5"	//aliens

code/_onclick/hud/hud.dm

@@ -29,6 +29,7 @@
 	var/obj/screen/zone_select
 	var/obj/screen/move_intent
 	var/obj/screen/module_store_icon
+	var/obj/screen/combo/combo_display
 
 	var/obj/screen/devil/soul_counter/devilsouldisplay
 

code/_onclick/hud/human.dm

@@ -401,6 +401,10 @@
 
 	inventory_shown = FALSE
 
+	combo_display = new()
+	infodisplay += combo_display
+
+
 	for(var/obj/screen/inventory/inv in (static_inventory + toggleable_inventory))
 		if(inv.slot_id)
 			inv.hud = src

code/modules/martial_arts/martial.dm

@@ -4,8 +4,9 @@
 /datum/martial_art
 	var/name = "Martial Art"
 	var/streak = ""
-	var/max_streak_length = 6
+	// var/max_streak_length = 6
 	var/temporary = FALSE
+	var/owner_UID
 	/// The permanent style.
 	var/datum/martial_art/base = null
 	/// Chance to deflect projectiles while on throw mode.
@@ -33,7 +34,9 @@
 	/// What combos are currently (possibly) being performed.
 	var/list/datum/martial_art/current_combos = list()
 	/// When the last hit happened.
-	var/last_hit = 0
+	// var/last_hit = 0
+	/// Stores the timer_id for the combo timeout timer
+	var/combo_timer
 	/// If the user is preparing a martial arts stance.
 	var/in_stance = FALSE
 
@@ -59,16 +62,26 @@
 /datum/martial_art/proc/act(step, mob/living/carbon/human/user, mob/living/carbon/human/target)
 	if(!can_use(user))
 		return MARTIAL_ARTS_CANNOT_USE
+	if(combo_timer)
+		deltimer(combo_timer)
+/*
 	if(last_hit + COMBO_ALIVE_TIME < world.time)
 		reset_combos()
 	last_hit = world.time
-
+*/
+	combo_timer = addtimer(CALLBACK(src, PROC_REF(reset_combos)), COMBO_ALIVE_TIME, TIMER_UNIQUE | TIMER_STOPPABLE)
+	streak += intent_to_streak(step)
+	var/mob/living/carbon/human/owner = locateUID(owner_UID)
+	owner?.hud_used.combo_display.update_icon(ALL, streak)
 	if(HAS_COMBOS)
 		return check_combos(step, user, target)
 	return FALSE
 
 /datum/martial_art/proc/reset_combos()
 	current_combos.Cut()
+	streak = ""
+	var/mob/living/carbon/human/owner = locateUID(owner_UID)
+	owner?.hud_used.combo_display.update_icon(ALL, streak)
 	for(var/combo_type in combos)
 		current_combos.Add(new combo_type())
 
@@ -174,6 +187,7 @@
 			base = H.mind.martial_art.base
 	else
 		base = src
+	owner_UID = H.UID()
 	H.mind.martial_art = src
 
 /datum/martial_art/proc/remove(var/mob/living/carbon/human/H)
@@ -234,6 +248,17 @@
 /datum/martial_art/proc/try_deflect(mob/user)
 	return prob(deflection_chance)
 
+/datum/martial_art/proc/intent_to_streak(intent)
+	switch(intent)
+		if(MARTIAL_COMBO_STEP_HARM)
+			return "E" // these hands are rated E for everyone
+		if(MARTIAL_COMBO_STEP_DISARM)
+			return "D"
+		if(MARTIAL_COMBO_STEP_GRAB)
+			return "G"
+		if(MARTIAL_COMBO_STEP_HELP)
+			return "H"
+
 //ITEMS
 
 /obj/item/clothing/gloves/boxing
@@ -507,5 +532,31 @@
 		return ..()
 	return 0
 
+/obj/screen/combo
+	icon_state = ""
+	mouse_opacity = MOUSE_OPACITY_TRANSPARENT
+	screen_loc = ui_combo
+	layer = ABOVE_HUD_LAYER
+	var/streak
+
+/obj/screen/combo/proc/clear_streak()
+	cut_overlays()
+	streak = ""
+	icon_state = ""
+
+/obj/screen/combo/update_icon(updates, _streak)
+	streak = _streak
+	icon_state = ""
+	if(!streak)
+		clear_streak()
+		return
+	icon_state = "combo"
+	for(var/i in 1 to length(streak))
+		var/intent_text = copytext(streak, i, i + 1)
+		var/image/intent_icon = image(icon, src, "combo_[intent_text]")
+		intent_icon.pixel_x = 16 * (i - 1) - 8 * length(streak)
+		overlays += intent_icon
+	return ..()
+
 #undef HAS_COMBOS
 #undef COMBO_ALIVE_TIME