round(x) deprecation for 515 (#6281)

# About the pull request


![image](https://github.com/cmss13-devs/cmss13/assets/14267245/43d08dca-fc72-4401-aabf-ae63460074e7)
> The first format returns the floor of A (the largest integer less than
or equal to A), and has been deprecated in favor of floor(A).

https://www.byond.com/docs/ref/#/proc/round

With the move to 515, replaces any use of the one-argument `round(x)`
with `floor(x)`.

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# Explain why it's good for the game

`floor(x)` clearly communicates what is actually happening, as opposed
to `round(x)` which doesn't.
# Testing Photographs and Procedure
Boots without obvious issue.


# Changelog
No player-facing changes.

code/__DEFINES/autofire.dm

@@ -1,4 +1,4 @@
 // Controls how many buckets should be kept, each representing a tick. Max is ten seconds, to have better perf.
 #define AUTOFIRE_BUCKET_LEN (world.fps * 10)
 /// Helper for getting the correct bucket
-#define AUTOFIRE_BUCKET_POS(next_fire) (((round((next_fire - SSautomatedfire.head_offset) / world.tick_lag) + 1) % AUTOFIRE_BUCKET_LEN) || AUTOFIRE_BUCKET_LEN)
+#define AUTOFIRE_BUCKET_POS(next_fire) (((floor((next_fire - SSautomatedfire.head_offset) / world.tick_lag) + 1) % AUTOFIRE_BUCKET_LEN) || AUTOFIRE_BUCKET_LEN)

code/__HELPERS/#maths.dm

@@ -44,7 +44,7 @@ GLOBAL_LIST_INIT(sqrtTable, list(1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4,
 #define ToRadians(degrees) ((degrees) * 0.0174532925)
 
 // min is inclusive, max is exclusive
-#define WRAP(val, min, max) clamp(( (min) == (max) ? (min) : (val) - (round(((val) - (min))/((max) - (min))) * ((max) - (min))) ),(min),(max))
+#define WRAP(val, min, max) clamp(( (min) == (max) ? (min) : (val) - (floor(((val) - (min))/((max) - (min))) * ((max) - (min))) ),(min),(max))
 
 
 // MATH PROCS
@@ -97,7 +97,7 @@ GLOBAL_LIST_INIT(sqrtTable, list(1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4,
 	var/static/list/units_prefix = list("", "un", "duo", "tre", "quattuor", "quin", "sex", "septen", "octo", "novem")
 	var/static/list/tens_prefix = list("", "decem", "vigin", "trigin", "quadragin", "quinquagin", "sexagin", "septuagin", "octogin", "nongen")
 	var/static/list/one_to_nine = list("monuple", "double", "triple", "quadruple", "quintuple", "sextuple", "septuple", "octuple", "nonuple")
-	number = round(number)
+	number = floor(number)
 	switch(number)
 		if(0)
 			return "empty tuple"
@@ -106,7 +106,7 @@ GLOBAL_LIST_INIT(sqrtTable, list(1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4,
 		if(10 to 19)
 			return "[units_prefix[(number%10)+1]]decuple"
 		if(20 to 99)
-			return "[units_prefix[(number%10)+1]][tens_prefix[round((number % 100)/10)+1]]tuple"
+			return "[units_prefix[(number%10)+1]][tens_prefix[floor((number % 100)/10)+1]]tuple"
 		if(100)
 			return "centuple"
 		else //It gets too tedious to use latin prefixes from here.

code/__HELPERS/files.dm

@@ -48,7 +48,7 @@
 /client/proc/file_spam_check()
 	var/time_to_wait = GLOB.fileaccess_timer - world.time
 	if(time_to_wait > 0)
-		to_chat(src, "<font color='red'>Error: file_spam_check(): Spam. Please wait [round(time_to_wait/10)] seconds.</font>")
+		to_chat(src, "<font color='red'>Error: file_spam_check(): Spam. Please wait [floor(time_to_wait/10)] seconds.</font>")
 		return 1
 	GLOB.fileaccess_timer = world.time + FTPDELAY
 	return 0

code/__HELPERS/game.dm

@@ -190,7 +190,7 @@
 		if(X1<X2)
 			b+=m
 		while(X1!=X2 || Y1!=Y2)
-			if(round(m*X1+b-Y1))
+			if(floor(m*X1+b-Y1))
 				Y1+=signY //Line exits tile vertically
 			else
 				X1+=signX //Line exits tile horizontally

code/__HELPERS/icons.dm

@@ -561,7 +561,7 @@ world
 	while (gap > 1 || swapped)
 		swapped = 0
 		if(gap > 1)
-			gap = round(gap / 1.3) // 1.3 is the emperic comb sort coefficient
+			gap = floor(gap / 1.3) // 1.3 is the emperic comb sort coefficient
 		if(gap < 1)
 			gap = 1
 		for(var/i = 1; gap + i <= result.len; i++)

code/__HELPERS/sanitize_values.dm

@@ -1,7 +1,7 @@
 //general stuff
 /proc/sanitize_integer(number, min=0, max=1, default=0)
 	if(isnum(number))
-		number = round(number)
+		number = floor(number)
 		if(min <= number && number <= max)
 			return number
 	return default

code/__HELPERS/sorts/_Main.dm

@@ -113,7 +113,7 @@ GLOBAL_DATUM_INIT(sortInstance, /datum/sortInstance, new())
 		//[lo, left) elements <= pivot < [right, start) elements
 		//in other words, find where the pivot element should go using bisection search
 		while(left < right)
-			var/mid = (left + right) >> 1 //round((left+right)/2)
+			var/mid = (left + right) >> 1 //floor((left+right)/2)
 			if(call(cmp)(fetchElement(L,mid), pivot) > 0)
 				right = mid
 			else

code/__HELPERS/type2type.dm

@@ -60,7 +60,7 @@
 	var/power = null
 	power = i - 1
 	while(power >= 0)
-		var/val = round(num / 16 ** power)
+		var/val = floor(num / 16 ** power)
 		num -= val * 16 ** power
 		switch(val)
 			if(9.0, 8.0, 7.0, 6.0, 5.0, 4.0, 3.0, 2.0, 1.0, 0.0)

code/__HELPERS/unsorted.dm

@@ -40,15 +40,15 @@
 #define skillcheckexplicit(user, skill, req_level) ((!user.skills || user.skills.is_skilled((skill), (req_level), TRUE)))
 
 // Ensure the frequency is within bounds of what it should be sending/receiving at
-// Sets f within bounds via `clamp(round(f), 1441, 1489)`
+// Sets f within bounds via `clamp(floor(f), 1441, 1489)`
 // If f is even, adds 1 to its value to make it odd
-#define sanitize_frequency(f) ((clamp(round(f), 1441, 1489) % 2) == 0 ? \
-									clamp(round(f), 1441, 1489) + 1 : \
-									clamp(round(f), 1441, 1489) \
+#define sanitize_frequency(f) ((clamp(floor(f), 1441, 1489) % 2) == 0 ? \
+									clamp(floor(f), 1441, 1489) + 1 : \
+									clamp(floor(f), 1441, 1489) \
 								)
 
 //Turns 1479 into 147.9
-#define format_frequency(f) "[round((f) / 10)].[(f) % 10]"
+#define format_frequency(f) "[floor((f) / 10)].[(f) % 10]"
 
 #define reverse_direction(direction) ( \
 											( dir & (NORTH|SOUTH) ? ~dir & (NORTH|SOUTH) : 0 ) | \
@@ -1766,8 +1766,8 @@ GLOBAL_DATUM_INIT(dview_mob, /mob/dview, new)
 		pixel_y_offset += ((AMiconheight/world.icon_size)-1)*(world.icon_size*0.5)
 
 	//DY and DX
-	var/rough_x = round(round(pixel_x_offset,world.icon_size)/world.icon_size)
-	var/rough_y = round(round(pixel_y_offset,world.icon_size)/world.icon_size)
+	var/rough_x = floor(round(pixel_x_offset,world.icon_size)/world.icon_size)
+	var/rough_y = floor(round(pixel_y_offset,world.icon_size)/world.icon_size)
 
 	//Find coordinates
 	var/turf/T = get_turf(AM) //use AM's turfs, as it's coords are the same as AM's AND AM's coords are lost if it is inside another atom

code/_globalvars/global_lists.dm

@@ -375,7 +375,7 @@ GLOBAL_LIST_INIT(hj_emotes, setup_hazard_joe_emotes())
 	while(gap > 1 || swapped)
 		swapped = 0
 		if(gap > 1)
-			gap = round(gap / 1.247330950103979)
+			gap = floor(gap / 1.247330950103979)
 		if(gap < 1)
 			gap = 1
 		for(var/i = 1; gap + i <= length(surgeries); i++)

code/_onclick/click.dm

@@ -376,8 +376,8 @@
 	var/shiftX = C.pixel_x / world.icon_size
 	var/shiftY = C.pixel_y / world.icon_size
 	var/list/actual_view = getviewsize(C ? C.view : GLOB.world_view_size)
-	tX = clamp(origin.x + text2num(tX) + shiftX - round(actual_view[1] / 2) - 1, 1, world.maxx)
-	tY = clamp(origin.y + text2num(tY) + shiftY - round(actual_view[2] / 2) - 1, 1, world.maxy)
+	tX = clamp(origin.x + text2num(tX) + shiftX - floor(actual_view[1] / 2) - 1, 1, world.maxx)
+	tY = clamp(origin.y + text2num(tY) + shiftY - floor(actual_view[2] / 2) - 1, 1, world.maxy)
 	return locate(tX, tY, tZ)
 
 

code/_onclick/hud/radial.dm

@@ -142,7 +142,7 @@ GLOBAL_LIST_EMPTY(radial_menus)
 	else
 		zone = 360 - starting_angle + ending_angle
 
-	max_elements = round(zone / min_angle)
+	max_elements = floor(zone / min_angle)
 	var/paged = max_elements < choices.len
 	if(elements.len < max_elements)
 		var/elements_to_add = max_elements - elements.len
@@ -177,7 +177,7 @@ GLOBAL_LIST_EMPTY(radial_menus)
 
 /datum/radial_menu/proc/update_screen_objects(anim = FALSE)
 	var/list/page_choices = page_data[current_page]
-	var/angle_per_element = round(zone / length(page_choices))
+	var/angle_per_element = floor(zone / length(page_choices))
 	for(var/i in 1 to length(elements))
 		var/atom/movable/screen/radial/E = elements[i]
 		var/angle = WRAP(starting_angle + (i - 1) * angle_per_element,0,360)
@@ -197,8 +197,8 @@ GLOBAL_LIST_EMPTY(radial_menus)
 
 /datum/radial_menu/proc/SetElement(atom/movable/screen/radial/slice/E,choice_id,angle,anim,anim_order)
 	//Position
-	var/py = round(cos(angle) * radius) + py_shift
-	var/px = round(sin(angle) * radius)
+	var/py = floor(cos(angle) * radius) + py_shift
+	var/px = floor(sin(angle) * radius)
 	if(anim)
 		var/timing = anim_order * 0.5
 		var/matrix/starting = matrix()
@@ -271,8 +271,8 @@ GLOBAL_LIST_EMPTY(radial_menus)
 		if(use_labels)
 			MA.maptext_width = 64
 			MA.maptext_height = 64
-			MA.maptext_x = -round(MA.maptext_width / 2) + 16
-			MA.maptext_y = -round(MA.maptext_height / 2) + 16
+			MA.maptext_x = -floor(MA.maptext_width / 2) + 16
+			MA.maptext_y = -floor(MA.maptext_height / 2) + 16
 			MA.maptext = SMALL_FONTS_CENTRED(7, label)
 	return MA
 

code/_onclick/hud/screen_objects.dm

@@ -75,7 +75,7 @@
 	return ..()
 
 /atom/movable/screen/action_button/proc/get_button_screen_loc(button_number)
-	var/row = round((button_number-1)/13) //13 is max amount of buttons per row
+	var/row = floor((button_number-1)/13) //13 is max amount of buttons per row
 	var/col = ((button_number - 1)%(13)) + 1
 	var/coord_col = "+[col-1]"
 	var/coord_col_offset = 4+2*col
@@ -129,9 +129,9 @@
 		//Calculate fullness for etiher max storage, or for storage slots if the container has them
 		var/fullness = 0
 		if (master_storage.storage_slots == null)
-			fullness = round(10*total_w/master_storage.max_storage_space)
+			fullness = floor(10*total_w/master_storage.max_storage_space)
 		else
-			fullness = round(10*master_storage.contents.len/master_storage.storage_slots)
+			fullness = floor(10*master_storage.contents.len/master_storage.storage_slots)
 		switch(fullness)
 			if(10)
 				color = "#ff0000"

code/_onclick/item_attack.dm

@@ -87,7 +87,7 @@
 
 	var/power = force
 	if(user.skills)
-		power = round(power * (1 + 0.25 * user.skills.get_skill_level(SKILL_MELEE_WEAPONS))) //25% bonus per melee level
+		power = floor(power * (1 + 0.25 * user.skills.get_skill_level(SKILL_MELEE_WEAPONS))) //25% bonus per melee level
 	if(!ishuman(M))
 		var/used_verb = "attacked"
 		if(attack_verb && attack_verb.len)

code/controllers/configuration/config_entry.dm

@@ -80,7 +80,7 @@
 		return FALSE
 	var/temp = text2num(trim(str_val))
 	if(!isnull(temp))
-		config_entry_value = clamp(integer ? round(temp) : temp, min_val, max_val)
+		config_entry_value = clamp(integer ? floor(temp) : temp, min_val, max_val)
 		if(config_entry_value != temp && !(datum_flags & DF_VAR_EDITED))
 			log_config("Changing [name] from [temp] to [config_entry_value]!")
 		return TRUE

code/controllers/mc/master.dm

@@ -232,7 +232,7 @@ GLOBAL_REAL(Master, /datum/controller/master) = new
 
 	for (var/datum/controller/subsystem/subsystem as anything in subsystems)
 		var/subsystem_init_stage = subsystem.init_stage
-		if (!isnum(subsystem_init_stage) || subsystem_init_stage < 1 || subsystem_init_stage > INITSTAGE_MAX || round(subsystem_init_stage) != subsystem_init_stage)
+		if (!isnum(subsystem_init_stage) || subsystem_init_stage < 1 || subsystem_init_stage > INITSTAGE_MAX || floor(subsystem_init_stage) != subsystem_init_stage)
 			stack_trace("ERROR: MC: subsystem `[subsystem.type]` has invalid init_stage: `[subsystem_init_stage]`. Setting to `[INITSTAGE_MAX]`")
 			subsystem_init_stage = subsystem.init_stage = INITSTAGE_MAX
 		stage_sorted_subsystems[subsystem_init_stage] += subsystem
@@ -668,7 +668,7 @@ GLOBAL_REAL(Master, /datum/controller/master) = new
 
 			tick_precentage = max(tick_precentage*0.5, tick_precentage-queue_node.tick_overrun)
 
-			current_ticklimit = round(TICK_USAGE + tick_precentage)
+			current_ticklimit = floor(TICK_USAGE + tick_precentage)
 
 			ran = TRUE
 

code/controllers/subsystem/mapping.dm

@@ -187,9 +187,9 @@ SUBSYSTEM_DEF(mapping)
 		var/x_offset = 1
 		var/y_offset = 1
 		if(bounds && world.maxx > bounds[MAP_MAXX])
-			x_offset = round(world.maxx / 2 - bounds[MAP_MAXX] / 2) + 1
+			x_offset = floor(world.maxx / 2 - bounds[MAP_MAXX] / 2) + 1
 		if(bounds && world.maxy > bounds[MAP_MAXY])
-			y_offset = round(world.maxy / 2 - bounds[MAP_MAXY] / 2) + 1
+			y_offset = floor(world.maxy / 2 - bounds[MAP_MAXY] / 2) + 1
 		if (!pm.load(x_offset, y_offset, start_z + parsed_maps[pm], no_changeturf = TRUE, new_z = TRUE))
 			errorList |= pm.original_path
 		// CM Snowflake for Mass Screenshot dimensions auto detection

code/controllers/subsystem/statpanel.dm

@@ -108,7 +108,7 @@ SUBSYSTEM_DEF(statpanels)
 
 	target.stat_panel.send_message("update_stat", list(
 		"global_data" = global_data,
-		//"ping_str" = "Ping: [round(target.lastping, 1)]ms (Average: [round(target.avgping, 1)]ms)",
+		//"ping_str" = "Ping: [floor(target.lastping, 1)]ms (Average: [floor(target.avgping, 1)]ms)",
 		"other_str" = target.mob?.get_status_tab_items(),
 	))
 

code/controllers/subsystem/ticker.dm

@@ -69,7 +69,7 @@ SUBSYSTEM_DEF(ticker)
 			if(isnull(start_at))
 				start_at = time_left || world.time + (CONFIG_GET(number/lobby_countdown) * 10)
 			to_chat_spaced(world, type = MESSAGE_TYPE_SYSTEM, margin_top = 2, margin_bottom = 0, html = SPAN_ROUNDHEADER("Welcome to the pre-game lobby of [CONFIG_GET(string/servername)]!"))
-			to_chat_spaced(world, type = MESSAGE_TYPE_SYSTEM, margin_top = 0, html = SPAN_ROUNDBODY("Please, setup your character and select ready. Game will start in [round(time_left / 10) || CONFIG_GET(number/lobby_countdown)] seconds."))
+			to_chat_spaced(world, type = MESSAGE_TYPE_SYSTEM, margin_top = 0, html = SPAN_ROUNDBODY("Please, setup your character and select ready. Game will start in [floor(time_left / 10) || CONFIG_GET(number/lobby_countdown)] seconds."))
 			SEND_GLOBAL_SIGNAL(COMSIG_GLOB_MODE_PREGAME_LOBBY)
 			current_state = GAME_STATE_PREGAME
 			fire()
@@ -346,8 +346,8 @@ SUBSYSTEM_DEF(ticker)
 
 /datum/controller/subsystem/ticker/proc/GetTimeLeft()
 	if(isnull(SSticker.time_left))
-		return round(max(0, start_at - world.time) / 10)
-	return round(time_left / 10)
+		return floor(max(0, start_at - world.time) / 10)
+	return floor(time_left / 10)
 
 
 /datum/controller/subsystem/ticker/proc/SetTimeLeft(newtime)

code/controllers/subsystem/timer.dm

@@ -1,7 +1,7 @@
 /// Controls how many buckets should be kept, each representing a tick. (1 minutes worth)
 #define BUCKET_LEN (world.fps*1*60)
 /// Helper for getting the correct bucket for a given timer
-#define BUCKET_POS(timer) (((round((timer.timeToRun - timer.timer_subsystem.head_offset) / world.tick_lag)+1) % BUCKET_LEN)||BUCKET_LEN)
+#define BUCKET_POS(timer) (((floor((timer.timeToRun - timer.timer_subsystem.head_offset) / world.tick_lag)+1) % BUCKET_LEN)||BUCKET_LEN)
 /// Gets the maximum time at which timers will be invoked from buckets, used for deferring to secondary queue
 #define TIMER_MAX(timer_ss) (timer_ss.head_offset + TICKS2DS(BUCKET_LEN + timer_ss.practical_offset - 1))
 /// Max float with integer precision
@@ -411,7 +411,7 @@ SUBSYSTEM_DEF(timer)
 	if (flags & TIMER_STOPPABLE)
 		id = num2text(nextid, 100)
 		if (nextid >= SHORT_REAL_LIMIT)
-			nextid += min(1, 2 ** round(nextid / SHORT_REAL_LIMIT))
+			nextid += min(1, 2 ** floor(nextid / SHORT_REAL_LIMIT))
 		else
 			nextid++
 		timer_subsystem.timer_id_dict[id] = src

code/controllers/subsystem/vote.dm

@@ -36,7 +36,7 @@ SUBSYSTEM_DEF(vote)
 
 /datum/controller/subsystem/vote/fire()
 	if(mode)
-		time_remaining = round((started_time + CONFIG_GET(number/vote_period) - world.time)/10)
+		time_remaining = floor((started_time + CONFIG_GET(number/vote_period) - world.time)/10)
 
 		if(time_remaining < 0)
 			result()
@@ -363,7 +363,7 @@ SUBSYSTEM_DEF(vote)
 		var/vp = CONFIG_GET(number/vote_period)
 		SEND_SOUND(world, sound(vote_sound, channel = SOUND_CHANNEL_VOX, volume = vote_sound_vol))
 		to_chat(world, SPAN_CENTERBOLD("<br><br><font color='purple'><b>[text]</b><br>Type <b>vote</b> or click <a href='?src=[REF(src)]'>here</a> to place your votes.<br>You have [DisplayTimeText(vp)] to vote.</font><br><br>"))
-		time_remaining = round(vp/10)
+		time_remaining = floor(vp/10)
 		for(var/c in GLOB.clients)
 			var/client/C = c
 			var/datum/action/innate/vote/V = give_action(C.mob, /datum/action/innate/vote)
@@ -380,7 +380,7 @@ SUBSYSTEM_DEF(vote)
 
 /datum/controller/subsystem/vote/proc/map_vote_adjustment(current_votes, carry_over, total_votes)
 	// Get 10% of the total map votes and remove them from the pool
-	var/total_vote_adjustment = round(total_votes * CONFIG_GET(number/vote_adjustment_callback))
+	var/total_vote_adjustment = floor(total_votes * CONFIG_GET(number/vote_adjustment_callback))
 
 	// Do not remove more votes than were made for the map
 	return -(min(current_votes, total_vote_adjustment))

code/datums/ammo/ammo.dm

@@ -228,7 +228,7 @@
 
 		var/obj/projectile/P = new /obj/projectile(curloc, original_P.weapon_cause_data)
 		P.generate_bullet(GLOB.ammo_list[bonus_projectiles_type]) //No bonus damage or anything.
-		P.accuracy = round(P.accuracy * original_P.accuracy/initial(original_P.accuracy)) //if the gun changes the accuracy of the main projectile, it also affects the bonus ones.
+		P.accuracy = floor(P.accuracy * original_P.accuracy/initial(original_P.accuracy)) //if the gun changes the accuracy of the main projectile, it also affects the bonus ones.
 		original_P.give_bullet_traits(P)
 		P.bonus_projectile_check = 2 //It's a bonus projectile!
 

code/datums/beam.dm

@@ -82,7 +82,7 @@
 /datum/beam/proc/Draw()
 	if(always_turn)
 		origin.setDir(get_dir(origin, target)) //Causes the source of the beam to rotate to continuosly face the BeamTarget.
-	var/Angle = round(Get_Angle(origin,target))
+	var/Angle = floor(Get_Angle(origin,target))
 	var/matrix/rot_matrix = matrix()
 	var/turf/origin_turf = get_turf(origin)
 	rot_matrix.Turn(Angle)
@@ -91,7 +91,7 @@
 	var/DX = get_pixel_position_x(target) - get_pixel_position_x(origin)
 	var/DY = get_pixel_position_y(target) - get_pixel_position_y(origin)
 	var/N = 0
-	var/length = round(sqrt((DX)**2+(DY)**2)) //hypotenuse of the triangle formed by target and origin's displacement
+	var/length = floor(sqrt((DX)**2+(DY)**2)) //hypotenuse of the triangle formed by target and origin's displacement
 
 	for(N in 0 to length-1 step world.icon_size)//-1 as we want < not <=, but we want the speed of X in Y to Z and step X
 		if(QDELETED(src))
@@ -116,20 +116,20 @@
 		if(DX == 0)
 			Pixel_x = 0
 		else
-			Pixel_x = round(sin(Angle) + world.icon_size*sin(Angle)*(N+world.icon_size/2) / world.icon_size)
+			Pixel_x = floor(sin(Angle) + world.icon_size*sin(Angle)*(N+world.icon_size/2) / world.icon_size)
 		if(DY == 0)
 			Pixel_y = 0
 		else
-			Pixel_y = round(cos(Angle) + world.icon_size*cos(Angle)*(N+world.icon_size/2) / world.icon_size)
+			Pixel_y = floor(cos(Angle) + world.icon_size*cos(Angle)*(N+world.icon_size/2) / world.icon_size)
 
 		//Position the effect so the beam is one continous line
 		var/a
 		if(abs(Pixel_x)>world.icon_size)
-			a = Pixel_x > 0 ? round(Pixel_x/32) : ceil(Pixel_x/world.icon_size)
+			a = Pixel_x > 0 ? floor(Pixel_x/32) : ceil(Pixel_x/world.icon_size)
 			X.x += a
 			Pixel_x %= world.icon_size
 		if(abs(Pixel_y)>world.icon_size)
-			a = Pixel_y > 0 ? round(Pixel_y/32) : ceil(Pixel_y/world.icon_size)
+			a = Pixel_y > 0 ? floor(Pixel_y/32) : ceil(Pixel_y/world.icon_size)
 			X.y += a
 			Pixel_y %= world.icon_size