516 Renderer update (#20579)

Updated the renderers to work with BYOND 516.
Some update of ZAS to hopefully be more efficient, and cold/hot air
effects.
Gas effects are now less prominent.

Ported from Bay

code/ZAS/Fire.dm

@@ -118,6 +118,13 @@ If it gains pressure too slowly, it may leak or just rupture instead of explodin
 
 	return 0
 
+/obj/heat
+	icon = 'icons/effects/fire.dmi'
+	icon_state = "3"
+	appearance_flags = PIXEL_SCALE | NO_CLIENT_COLOR
+	render_target = HEAT_EFFECT_TARGET
+	mouse_opacity = MOUSE_OPACITY_TRANSPARENT
+
 /obj/fire
 	//Icon for fire on turfs.
 

code/ZAS/Zone.dm

@@ -53,6 +53,9 @@ Class Procs:
 
 	var/datum/gas_mixture/air = new
 
+	var/list/graphic_add = list()
+	var/list/graphic_remove = list()
+
 /zone/New()
 	SSair.add_zone(src)
 	air.temperature = TCMB
@@ -148,21 +151,20 @@ Class Procs:
 	air.group_multiplier = contents.len+1
 
 /zone/proc/tick()
+	// Update fires.
 	if(air.temperature >= PHORON_FLASHPOINT && !(src in SSair.active_fire_zones) && air.check_combustability() && contents.len)
 		var/turf/T = pick(contents)
 		if(istype(T))
 			T.create_fire(GLOB.vsc.fire_firelevel_multiplier)
 
-	var/world_time_counter = world.time
-	var/list/graphic_add = list()
-	var/list/graphic_remove = list()
+	// Update gas overlays.
 	if(air.check_tile_graphic(graphic_add, graphic_remove))
 		for(var/turf/simulated/T in contents)
 			T.update_graphic(graphic_add, graphic_remove)
-	var/delta_time = world.time - world_time_counter
-	if(delta_time > 5 SECONDS)
-		log_admin("AN AREA IS TAKING EXTREMELY LONG TO UPDATE: [name] WITH CONTENTS LENGTH [length(contents)] TELL MATT WITH THE ROUND ID!")
+		graphic_add.Cut()
+		graphic_remove.Cut()
 
+	// Update connected edges.
 	for(var/connection_edge/E in edges)
 		if(E.sleeping)
 			E.recheck()

code/__DEFINES/atmos.dm

@@ -49,6 +49,9 @@
 #define CARBON_LIFEFORM_FIRE_RESISTANCE (T0C + 200)
 #define CARBON_LIFEFORM_FIRE_DAMAGE     4
 
+#define FOGGING_TEMPERATURE (T0C + 5)
+#define MAX_FOG_TEMPERATURE (T0C - 50)
+
 // Phoron fire properties.
 #define PHORON_MINIMUM_BURN_TEMPERATURE    (T0C +  126) //400 K - autoignite temperature in tanks and canisters - enclosed environments I guess
 #define PHORON_FLASHPOINT                  (T0C +  246) //519 K - autoignite temperature in air if that ever gets implemented.
@@ -122,6 +125,8 @@
 #define GAS_DEUTERIUM			"deuterium"
 #define GAS_TRITIUM				"tritium"
 #define GAS_BORON				"boron"
+#define GAS_HEAT                "heat" //Not a real gas, used for visual effects
+#define GAS_COLD                "cold" //Not a real gas, used for visual effects
 
 #define	PIPE_COLOR_GREY		"#ffffff"	//yes white is grey
 #define	PIPE_COLOR_RED		"#ff0000"

code/__DEFINES/layers.dm

@@ -36,6 +36,11 @@
 
 #define OVER_OPENSPACE_PLANE -4
 
+#define HEAT_EFFECT_PLANE -4
+#define HEAT_EFFECT_TARGET    "*heat"
+#define COLD_EFFECT_TARGET    "*cold"
+#define COLD_EFFECT_BACK_TARGET "*coldb"
+#define HEAT_COMPOSITE_TARGET "*heatc"
 #define WARP_EFFECT_PLANE -3
 
 #define BLACKNESS_PLANE 0 //Blackness plane as per DM documentation.

code/__HELPERS/global_lists.dm

@@ -133,6 +133,8 @@ GLOBAL_LIST_EMPTY(contained_clothing_species_adaption_cache)
 /// Cache for outfit selection.
 GLOBAL_LIST_EMPTY(outfit_cache)
 
+GLOBAL_LIST_EMPTY(all_particles)
+
 //////////////////////////
 /////Initial Building/////
 //////////////////////////
@@ -240,6 +242,11 @@ GLOBAL_LIST_EMPTY(outfit_cache)
 		if(S.spawn_flags & IS_WHITELISTED)
 			GLOB.whitelisted_species += S.name
 
+	paths = typesof(/particles)
+	for (var/path in paths)
+		var/particles/P = new path()
+		GLOB.all_particles[P.name] = P
+
 	return TRUE
 
 GLOBAL_LIST_INIT(correct_punctuation, list("!" = TRUE, "." = TRUE, "?" = TRUE, "-" = TRUE, "~" = TRUE, \

code/_onclick/hud/rendering/_renderer.dm

@@ -7,13 +7,23 @@
 * visual effects.
 */
 
+/// Add one instance of this renderer on mob/Login with no special setup
+#define RENDERER_FLAG_AUTO BITFLAG(1)
+
+/// This renderer can be used with mob/AddRenderer & mob/RemoveRenderer
+#define RENDERER_FLAG_OPTIONAL BITFLAG(2)
+
+
 /// The base /renderer definition and defaults.
 ABSTRACT_TYPE(/atom/movable/renderer)
 	appearance_flags = DEFAULT_RENDERER_APPEARANCE_FLAGS
-	screen_loc = "CENTER"
+	screen_loc = "1,1"
 	plane = LOWEST_PLANE
 	blend_mode = BLEND_OVERLAY
 
+	/// A bitfield of RENDERER_* defines.
+	var/renderer_flags = NONE
+
 	/// The compositing renderer this renderer belongs to.
 	var/group = RENDER_GROUP_FINAL
 
@@ -23,21 +33,20 @@ ABSTRACT_TYPE(/atom/movable/renderer)
 	/// Optional blend mode override for the renderer's composition relay.
 	var/relay_blend_mode
 
-	/// If text, uses the text or, if TRUE, uses "*AUTO-[name]"
+	/// If text, uses the text or, if TRUE, uses "*AUTO-[name]".
 	var/render_target_name = TRUE
 
-	var/mob/owner = null
+	/// When not shared, the mob associated with this renderer.
+	var/mob/owner
 
 
 /atom/movable/renderer/Destroy()
-	owner = null
 	QDEL_NULL(relay)
+	owner = null
 	return ..()
 
 
 INITIALIZE_IMMEDIATE(/atom/movable/renderer)
-
-
 /atom/movable/renderer/Initialize(mapload, mob/owner)
 	. = ..()
 	if (. == INITIALIZE_HINT_QDEL)
@@ -51,8 +60,10 @@ INITIALIZE_IMMEDIATE(/atom/movable/renderer)
 		render_target = render_target_name
 	else if (render_target_name)
 		render_target = "*[ckey(name)]"
+	if (owner?.client?.byond_version < 516)
+		screen_loc = "CENTER"
 	relay = new
-	relay.screen_loc = "CENTER"
+	relay.screen_loc = screen_loc
 	relay.appearance_flags = PASS_MOUSE | NO_CLIENT_COLOR | KEEP_TOGETHER
 	relay.name = "[render_target] relay"
 	relay.mouse_opacity = mouse_opacity
@@ -64,10 +75,11 @@ INITIALIZE_IMMEDIATE(/atom/movable/renderer)
 	else
 		relay.blend_mode = relay_blend_mode
 
+
 /**
 * Graphic preferences
-*
-* Some renderers may be able to use a graphic preference to determine how to display effects. For example reduce particle counts or filter variables.
+* Some renderers may be able to use a graphic preference to determine how to display effects.
+* For example reduce particle counts or filter variables.
 */
 /atom/movable/renderer/proc/GraphicsUpdate()
 	return
@@ -81,52 +93,104 @@ INITIALIZE_IMMEDIATE(/atom/movable/renderer)
 * to share them globally.
 */
 
-/// The list of renderers associated with this mob.
-/mob/var/list/atom/movable/renderer/renderers
+/// A map of (instance = plane) renderers in use by this mob.
+/mob/var/list/atom/movable/renderer/renderer_plane_map
+
+/// A map of (type = instance) renderers in use by this mob.
+/mob/var/list/atom/movable/renderer/path_renderer_map
 
 
 /// Creates the mob's renderers on /Login()
-/mob/proc/CreateRenderers()
-	if (!renderers)
-		renderers = list()
-	for (var/renderer as anything in subtypesof(/atom/movable/renderer))
-		if(ispath(renderer, /atom/movable/renderer/shared))
-			continue
-		var/atom/movable/renderer/render = new renderer (null, src)
-		renderers["[render.plane]"] = render // (render = plane) format for visual debugging
-		if (render.relay)
-			my_client.screen += render.relay
-		my_client.screen += render
+/mob/proc/AddDefaultRenderers()
+	if (renderer_plane_map)
+		ClearRenderers()
+	renderer_plane_map = list()
+	path_renderer_map = list()
+	for (var/atom/movable/renderer/renderer as anything in subtypesof(/atom/movable/renderer))
+		if (initial(renderer.renderer_flags) & RENDERER_FLAG_AUTO)
+			renderer = new renderer(null, src)
+			renderer_plane_map[renderer] = renderer.plane
+			path_renderer_map[renderer.type] = renderer
+			if (renderer.relay)
+				my_client.screen += renderer.relay
+			my_client.screen += renderer
+	var/list/zmimic_renderers = list()
+	path_renderer_map[/atom/movable/renderer/zmimic] = zmimic_renderers
+	for (var/i = 0 to OPENTURF_MAX_DEPTH)
+		var/atom/movable/renderer/zmimic/renderer = new (null, src, OPENTURF_MAX_PLANE - i)
+		renderer_plane_map[renderer] = renderer.plane
+		zmimic_renderers += renderer
+		if (renderer.relay)
+			my_client.screen += renderer.relay
+		my_client.screen += renderer
 
-	for (var/atom/movable/renderer/zrenderer as anything in GLOB.zmimic_renderers)
-		if (zrenderer.relay)
-			my_client.screen += zrenderer.relay
-		my_client.screen += zrenderer
 
 /// Removes the mob's renderers on /Logout()
-/mob/proc/RemoveRenderers()
-	if(my_client)
-		for(var/renderer as anything in renderers)
-			var/atom/movable/renderer/render = renderers[renderer]
-			my_client.screen -= render
-			if (render.relay)
-				my_client.screen -= render.relay
-			qdel(render)
-		for (var/atom/movable/renderer/renderer as anything in GLOB.zmimic_renderers)
+/mob/proc/ClearRenderers()
+	if (my_client)
+		for (var/atom/movable/renderer/renderer as anything in renderer_plane_map)
+			if (renderer.relay)
+				my_client.screen -= renderer.relay
 			my_client.screen -= renderer
-	if (renderers)
-		renderers.Cut()
+			qdel(renderer)
+	renderer_plane_map = null
+	path_renderer_map = null
+
+
+/// Returns the renderer instance of_type if the mob has one and it is not shared.
+/mob/proc/GetRenderer(atom/movable/renderer/of_type)
+	if (!my_client)
+		return
+	return path_renderer_map[of_type]
+
+
+/// Adds a non-main renderer to the mob by type if the mob doesn't already have it.
+/mob/proc/AddRenderer(atom/movable/renderer/of_type)
+	if (!my_client)
+		return
+	if (~initial(of_type.renderer_flags) & RENDERER_FLAG_OPTIONAL)
+		return
+	if (of_type in path_renderer_map)
+		return
+	var/atom/movable/renderer/renderer = new of_type (null, src)
+	if (renderer.relay)
+		my_client.screen += renderer.relay
+	my_client.screen += renderer
+	renderer_plane_map[renderer] = renderer.plane
+	path_renderer_map[of_type] = renderer
+	return renderer
+
+
+/// Removes a non-main renderer to the mob by type.
+/mob/proc/RemoveRenderer(atom/movable/renderer/of_type)
+	if (!my_client)
+		return
+	if (~initial(of_type.renderer_flags) & RENDERER_FLAG_OPTIONAL)
+		return
+	if (!length(path_renderer_map))
+		return
+	var/atom/movable/renderer/renderer = path_renderer_map[of_type]
+	if (!renderer)
+		return
+	if (renderer.relay)
+		my_client.screen -= renderer.relay
+	my_client.screen -= renderer
+	path_renderer_map -= of_type
+	renderer_plane_map -= renderer
+	qdel(renderer)
+
 
 /* *
 * Plane Renderers
 * We treat some renderers as planes with layers. When some atom has the same plane
 * as a Plane Renderer, it is drawn by that renderer. The layer of the atom determines
 * its draw order within the scope of the renderer. The draw order of same-layered things
-* is probably by atom contents order, but can be assumed not to matter - if it's out of
-* order, it should have a more appropriate layer value.
+* is probably by atom contents order, but can be assumed not to matter - if it's visibly
+* incorrect, it should have a more appropriate layer value.
 * Higher plane values are composited over lower. Here, they are ordered from under to over.
 */
 
+
 /// Handles byond internal letterboxing. Avoid touching.
 /atom/movable/renderer/letterbox
 	name = "Letterbox"
@@ -134,58 +198,50 @@ INITIALIZE_IMMEDIATE(/atom/movable/renderer)
 	plane = BLACKNESS_PLANE
 	blend_mode = BLEND_MULTIPLY
 	mouse_opacity = MOUSE_OPACITY_TRANSPARENT
+	renderer_flags = RENDERER_FLAG_AUTO
+
 
 /atom/movable/renderer/space
 	name = "Space"
 	group = RENDER_GROUP_SCENE
 	plane = SPACE_PLANE
+	renderer_flags = RENDERER_FLAG_AUTO
+
 
 /atom/movable/renderer/skybox
 	name = "Skybox"
 	group = RENDER_GROUP_SCENE
 	plane = SKYBOX_PLANE
 	relay_blend_mode = BLEND_MULTIPLY
+	renderer_flags = RENDERER_FLAG_AUTO
 
-//Z Mimic planemasters -> Could apply scaling for parallax though that requires copying appearances from adjacent turfs
-GLOBAL_LIST_EMPTY(zmimic_renderers)
 
-/hook/startup/proc/create_global_renderers() //Some (most) renderers probably do not need to be instantiated per mob. So may as well make them global and just add to screen
-	//Zmimic planemasters
-	for(var/i = 0 to OPENTURF_MAX_DEPTH)
-		GLOB.zmimic_renderers += new /atom/movable/renderer/shared/zmimic(null, null, OPENTURF_MAX_PLANE - i)
-
-	return TRUE
-
-/atom/movable/renderer/shared/zmimic
+/atom/movable/renderer/zmimic
 	name = "Zrenderer"
 	group = RENDER_GROUP_SCENE
 
-/atom/movable/renderer/shared/zmimic/Initialize(mapload, _owner, _plane)
+
+/atom/movable/renderer/zmimic/Initialize(mapload, _owner, _plane)
 	plane = _plane
 	name = "Zrenderer [plane]"
-	. = ..()
-
-/atom/movable/renderer/shared/zmimic/Destroy()
-	GLOB.zmimic_renderers -= src
 	return ..()
 
+
 // Draws the game world; live mobs, items, turfs, etc.
 /atom/movable/renderer/game
 	name = "Game"
 	group = RENDER_GROUP_SCENE
 	plane = DEFAULT_PLANE
+	renderer_flags = RENDERER_FLAG_AUTO
+
 
 /// Draws observers; ghosts, camera eyes, etc.
 /atom/movable/renderer/observers
 	name = "Observers"
 	group = RENDER_GROUP_SCENE
 	plane = OBSERVER_PLANE
+	renderer_flags = RENDERER_FLAG_AUTO
 
-/atom/movable/renderer/roofs
-	name = "Roofs"
-	group = RENDER_GROUP_SCENE
-	plane = ROOF_PLANE
-	mouse_opacity = MOUSE_OPACITY_TRANSPARENT
 
 /// Draws darkness effects.
 /atom/movable/renderer/lighting
@@ -194,6 +250,8 @@ GLOBAL_LIST_EMPTY(zmimic_renderers)
 	plane = LIGHTING_PLANE
 	relay_blend_mode = BLEND_MULTIPLY
 	mouse_opacity = MOUSE_OPACITY_TRANSPARENT
+	renderer_flags = RENDERER_FLAG_AUTO
+
 
 /atom/movable/renderer/lighting/Initialize()
 	. = ..()
@@ -203,11 +261,13 @@ GLOBAL_LIST_EMPTY(zmimic_renderers)
 		flags = MASK_INVERSE
 	)
 
+
 /// Draws visuals that should not be affected by darkness.
 /atom/movable/renderer/above_lighting
 	name = "Above Lighting"
 	group = RENDER_GROUP_SCENE
 	plane = EFFECTS_ABOVE_LIGHTING_PLANE
+	renderer_flags = RENDERER_FLAG_AUTO
 
 
 /// Draws full screen visual effects, like pain and bluespace.
@@ -216,6 +276,7 @@ GLOBAL_LIST_EMPTY(zmimic_renderers)
 	group = RENDER_GROUP_SCENE
 	plane = FULLSCREEN_PLANE
 	mouse_opacity = MOUSE_OPACITY_TRANSPARENT
+	renderer_flags = RENDERER_FLAG_AUTO
 
 
 /// Draws user interface elements.
@@ -223,6 +284,7 @@ GLOBAL_LIST_EMPTY(zmimic_renderers)
 	name = "Interface"
 	group = RENDER_GROUP_SCREEN
 	plane = HUD_PLANE
+	renderer_flags = RENDERER_FLAG_AUTO
 
 
 /* *
@@ -235,17 +297,21 @@ GLOBAL_LIST_EMPTY(zmimic_renderers)
 * granular manipulation of how the final scene is composed.
 */
 
+
 /// Render group for stuff INSIDE the typical game context - people, items, lighting, etc.
 /atom/movable/renderer/scene_group
 	name = "Scene Group"
 	group = RENDER_GROUP_FINAL
 	plane = RENDER_GROUP_SCENE
+	renderer_flags = RENDERER_FLAG_AUTO
+
 
 /// Render group for stuff OUTSIDE the typical game context - UI, full screen effects, etc.
 /atom/movable/renderer/screen_group
 	name = "Screen Group"
 	group = RENDER_GROUP_FINAL
 	plane = RENDER_GROUP_SCREEN
+	renderer_flags = RENDERER_FLAG_AUTO
 
 
 /// Render group for final compositing before user display.
@@ -253,6 +319,7 @@ GLOBAL_LIST_EMPTY(zmimic_renderers)
 	name = "Final Group"
 	group = RENDER_GROUP_NONE
 	plane = RENDER_GROUP_FINAL
+	renderer_flags = RENDERER_FLAG_AUTO
 
 
 /* *
@@ -264,6 +331,7 @@ GLOBAL_LIST_EMPTY(zmimic_renderers)
 * behavior, such as the effect atom below, causes them to be noticeable.
 */
 
+
 /// Renders the /obj/effect/warp example effect as well as gravity catapult effects
 /atom/movable/renderer/warp
 	name = "Warp Effect"
@@ -271,14 +339,57 @@ GLOBAL_LIST_EMPTY(zmimic_renderers)
 	plane = WARP_EFFECT_PLANE
 	render_target_name = "*warp"
 	mouse_opacity = MOUSE_OPACITY_TRANSPARENT
+	renderer_flags = RENDERER_FLAG_AUTO
+
+
+//Similar to warp but not as strong
+/atom/movable/renderer/heat
+	name = "Heat Effect"
+	group = RENDER_GROUP_NONE
+	plane = HEAT_EFFECT_PLANE
+	render_target_name = HEAT_COMPOSITE_TARGET
+	mouse_opacity = MOUSE_OPACITY_TRANSPARENT
+	renderer_flags = RENDERER_FLAG_AUTO
+
+	var/obj/gas_heat_object
+	var/obj/gas_cold_object
+
+
+/atom/movable/renderer/heat/Initialize()
+	. = ..()
+	GraphicsUpdate()
+
+/atom/movable/renderer/heat/GraphicsUpdate()
+	if (!ismob(owner))
+		return
+	if (gas_heat_object)
+		vis_contents -= gas_heat_object
+	if (gas_cold_object)
+		vis_contents -= gas_cold_object
+		QDEL_NULL(gas_heat_object)
+		QDEL_NULL(gas_cold_object)
+		gas_cold_object = new /obj/particle_emitter/mist/gas
+		gas_heat_object = new /obj/particle_emitter/heat/high
+	vis_contents += gas_heat_object
+	// if (config.enable_cold_mist)
+	// 	vis_contents += gas_cold_object
 
 /atom/movable/renderer/scene_group/Initialize()
 	. = ..()
-	filters += filter(type = "displace", render_source = "*warp", size = 5)
+	filters += filter(
+		type = "displace",
+		render_source = "*warp",
+		size = 5
+	)
+	filters += filter(
+		type = "displace",
+		render_source = HEAT_COMPOSITE_TARGET,
+		size = 2.5
+	)
 
 
 /*!
- * This system works by exploiting BYONDs color matrix filter to use layers to handle emissive blockers.
+ * Emmissives work by exploiting BYONDs color matrix filter to use layers to handle emissive blockers.
  *
  * Emissive overlays are pasted with an atom color that converts them to be entirely some specific color.
  * Emissive blockers are pasted with an atom color that converts them to be entirely some different color.
@@ -290,12 +401,16 @@ GLOBAL_LIST_EMPTY(zmimic_renderers)
  * This works best if emissive overlays applied only to objects that emit light,
  * since luminosity=0 turfs may not be rendered.
  */
+
+
 /atom/movable/renderer/emissive
 	name = "Emissive"
 	group = RENDER_GROUP_NONE
 	plane = EMISSIVE_PLANE
 	mouse_opacity = MOUSE_OPACITY_TRANSPARENT
 	render_target_name = EMISSIVE_TARGET
+	renderer_flags = RENDERER_FLAG_AUTO
+
 
 /atom/movable/renderer/emissive/Initialize()
 	. = ..()
@@ -303,3 +418,18 @@ GLOBAL_LIST_EMPTY(zmimic_renderers)
 		type = "color",
 		color = GLOB.em_mask_matrix
 	)
+
+
+
+
+
+/*
+	AURORA SNOWFLAKES
+*/
+
+/atom/movable/renderer/roofs
+	name = "Roofs"
+	group = RENDER_GROUP_SCENE
+	plane = ROOF_PLANE
+	mouse_opacity = MOUSE_OPACITY_TRANSPARENT
+	renderer_flags = RENDERER_FLAG_AUTO

code/defines/gases.dm

@@ -32,6 +32,7 @@
 	molar_mass = 0.405	// kg/mol
 
 	tile_overlay = "phoron"
+	tile_color = "#ff9940"
 	overlay_limit = 0.7
 	flags = XGM_GAS_FUEL | XGM_GAS_CONTAMINANT
 
@@ -108,6 +109,7 @@
 /singleton/xgm_gas/chlorine
 	id = GAS_CHLORINE
 	name = "Chlorine"
+	tile_color = "#c5f72d"
 	tile_overlay = "chlorine"
 	overlay_limit = 0.5
 	specific_heat = 5	// J/(mol*K)

code/game/machinery/atmoalter/canister.dm

@@ -55,8 +55,10 @@
 /obj/machinery/portable_atmospherics/canister/oxygen/Initialize()
 	. = ..()
 	src.air_contents.adjust_gas(GAS_OXYGEN, MolesForPressure())
+
 /obj/machinery/portable_atmospherics/canister/oxygen/prechilled
 	name = "Canister: \[O2 (Cryo)\]"
+
 /obj/machinery/portable_atmospherics/canister/oxygen/prechilled/Initialize()
 	. = ..()
 	src.air_contents.temperature = 80
@@ -69,6 +71,7 @@
 /obj/machinery/portable_atmospherics/canister/phoron/Initialize()
 	. = ..()
 	src.air_contents.adjust_gas(GAS_PHORON, MolesForPressure())
+
 /obj/machinery/portable_atmospherics/canister/phoron_scarce // replacing on-station canisters with this for scarcity - full-capacity canisters are staying to avoid mapping errors in future
 	name = "Canister \[Phoron\]"
 	icon_state = "orange"
@@ -92,6 +95,7 @@
 /obj/machinery/portable_atmospherics/canister/hydrogen/Initialize()
 	. = ..()
 	air_contents.adjust_gas(GAS_HYDROGEN, MolesForPressure())
+
 /obj/machinery/portable_atmospherics/canister/hydrogen/deuterium
 	name = "Canister \[2H\]"
 	icon_state = "teal"
@@ -100,6 +104,7 @@
 /obj/machinery/portable_atmospherics/canister/hydrogen/deuterium/Initialize()
 	. = ..()
 	air_contents.adjust_gas(GAS_DEUTERIUM, MolesForPressure())
+
 /obj/machinery/portable_atmospherics/canister/hydrogen/tritium
 	name = "Canister \[3H\]"
 	icon_state = "pink"
@@ -126,6 +131,7 @@
 /obj/machinery/portable_atmospherics/canister/boron/Initialize()
 	. = ..()
 	air_contents.adjust_gas(GAS_BORON, MolesForPressure())
+
 /obj/machinery/portable_atmospherics/canister/chlorine
 	name = "\improper Chlorine \[Cl2\]"
 	icon_state = "darkyellow"

code/game/objects/items/camping.dm

@@ -59,17 +59,18 @@
 	. = ..()
 	if(!.)
 		return
-	var/mob/M = entering
-	if(!M.renderers)
+	if(!istype(entering, /mob))
 		return
-	var/atom/movable/renderer/roofs/roof_plane = M.renderers["[ROOF_PLANE]"]
+
+	var/mob/M = entering
+	var/atom/movable/renderer/roofs/roof_plane = M.GetRenderer(/atom/movable/renderer/roofs)
 	if(roof_plane)
 		roof_plane.alpha = 76
 
 /datum/large_structure/tent/mob_moved(mob/mover, turf/exit_point)
 	. = ..()
 	if(!.)
-		var/atom/movable/renderer/roofs/roof_plane = mover.renderers["[ROOF_PLANE]"]
+		var/atom/movable/renderer/roofs/roof_plane = mover.GetRenderer(/atom/movable/renderer/roofs)
 		if(roof_plane)
 			roof_plane.alpha = 255
 
@@ -262,7 +263,7 @@
 
 /obj/structure/component/tent_canvas/Destroy() //When we're destroyed, make sure we return the roof plane to anyone inside
 	for(var/mob/M in loc)
-		var/atom/movable/renderer/roofs/roof_plane = M.renderers["[ROOF_PLANE]"]
+		var/atom/movable/renderer/roofs/roof_plane = M.GetRenderer(/atom/movable/renderer/roofs)
 		if(roof_plane)
 			roof_plane.alpha = 255
 	return ..()

code/game/turfs/simulated.dm

@@ -6,8 +6,6 @@
 
 	var/thermite = 0
 	initial_gas = list("oxygen" = MOLES_O2STANDARD, "nitrogen" = MOLES_N2STANDARD)
-	var/to_be_destroyed = 0 //Used for fire, if a melting temperature was reached, it will be destroyed
-	var/max_fire_temperature_sustained = 0 //The max temperature of the fire which it was subjected to
 	var/dirt = 0
 
 	var/unwet_timer	// Used to keep track of the unwet timer & delete it on turf change so we don't runtime if the new turf is not simulated.

code/modules/effects/particles/native_particles.dm

@@ -1,3 +1,6 @@
+/particles
+	var/name = "particles"
+
 /particles/cooking_smoke
 	width = 256
 	height = 256
@@ -28,6 +31,43 @@
 	icon = 'icons/effects/native_particles.dmi'
 	icon_state = "bar_smoke"
 
+/particles/mist
+	name = "mist"
+	icon = 'icons/effects/particles.dmi'
+	icon_state = list("steam_1" = 1, "steam_2" = 1, "steam_3" = 1)
+	count = 500
+	spawning = 4
+	lifespan = 5 SECONDS
+	fade = 1 SECOND
+	fadein = 1 SECOND
+	velocity = generator("box", list(-0.5, -0.25, 0), list(0.5, 0.25, 0), NORMAL_RAND)
+	position = generator("box", list(-20, -16), list(20, -2), UNIFORM_RAND)
+	friction = 0.2
+	grow = 0.0015
+
+/particles/heat
+	name = "heat"
+	width = 500
+	height = 500
+	count = 250
+	spawning = 15
+	lifespan = 1.85 SECONDS
+	fade = 1.25 SECONDS
+	position = generator("box", list(-16, -16), list(16, 0), NORMAL_RAND)
+	friction = 0.15
+	gradient = list(0, COLOR_WHITE, 0.75, COLOR_ORANGE)
+	color_change = 0.1
+	color = 0
+	gravity = list(0, 1)
+	drift = generator("circle", 0.4, NORMAL_RAND)
+	velocity = generator("circle", 0, 3, NORMAL_RAND)
+
+
+/particles/heat/high
+	name = "high heat"
+	count = 600
+	spawning = 35
+
 /obj/effect/map_effect/particle_emitter
 	var/particles/particle_type = /particles/bar_smoke
 	invisibility = 0
@@ -41,3 +81,64 @@
 	particle_type = /particles/bar_smoke
 	layer = BELOW_TABLE_LAYER
 	alpha = 128
+
+
+//Spawner object
+//Maybe we could pool them in and out
+
+/obj/particle_emitter
+	name = ""
+	anchored = TRUE
+	mouse_opacity = 0
+	appearance_flags = PIXEL_SCALE
+	var/particle_type = null
+
+
+/obj/particle_emitter/Initialize(mapload, time, _color)
+	. = ..()
+	if (particle_type)
+		particles = GLOB.all_particles[particle_type]
+
+	if (time > 0)
+		QDEL_IN(src, time)
+	color = _color
+
+/obj/particle_emitter/heat
+	particle_type = "heat"
+	render_target = HEAT_EFFECT_TARGET
+	appearance_flags = PIXEL_SCALE | NO_CLIENT_COLOR
+
+
+/obj/particle_emitter/heat/Initialize()
+	. = ..()
+	filters += filter(type = "blur", size = 1)
+
+/obj/particle_emitter/heat/high
+	particle_type = "high heat"
+
+
+/obj/particle_emitter/mist
+	particle_type = "mist"
+	layer = FIRE_LAYER
+
+/obj/particle_emitter/mist/back
+	particle_type = "mist_back"
+	layer = BELOW_OBJ_LAYER
+
+
+/obj/particle_emitter/mist/back/gas
+	render_target = COLD_EFFECT_BACK_TARGET
+
+/obj/particle_emitter/mist/back/gas/Initialize(mapload, time, _color)
+	. = ..()
+	filters += filter(type="alpha", render_source = COLD_EFFECT_TARGET, flags = MASK_INVERSE)
+
+//for cold gas effect
+/obj/particle_emitter/mist/gas
+	render_target = COLD_EFFECT_TARGET
+	var/obj/particle_emitter/mist/back/b = /obj/particle_emitter/mist/back/gas
+
+/obj/particle_emitter/mist/gas/Initialize(mapload, time, _color)
+	. = ..()
+	b = new b(null)
+	vis_contents += b

code/modules/mob/login.dm

@@ -100,7 +100,7 @@
 	clear_important_client_contents(client)
 	enable_client_mobs_in_contents(client)
 
-	CreateRenderers()
+	AddDefaultRenderers()
 	update_client_color()
 	add_click_catcher()
 

code/modules/mob/logout.dm

@@ -10,7 +10,7 @@
 	disconnect_time = world.realtime
 	log_access("Logout: [key_name(src)]")
 	SSstatistics.update_status()
-	RemoveRenderers()
+	ClearRenderers()
 	if(client)
 		clear_important_client_contents(client)
 

code/modules/xgm/xgm_gas_data.dm

@@ -1,4 +1,4 @@
-/var/datum/xgm_gas_data/gas_data
+var/global/datum/xgm_gas_data/gas_data
 
 /datum/xgm_gas_data
 	//Simple list of all the gas IDs.
@@ -9,7 +9,7 @@
 	var/list/specific_heat = list()
 	//Molar mass of the gas.  Used for calculating specific entropy.
 	var/list/molar_mass = list()
-	//Tile overlays.  /obj/effect/gas_overlay, created from references to 'icons/effects/tile_effects.dmi'
+	//Tile overlays.  /obj/gas_overlay, created from references to 'icons/effects/tile_effects.dmi'
 	var/list/tile_overlay = list()
 	//Optional color for tile overlay
 	var/list/tile_overlay_color = list()
@@ -36,7 +36,7 @@
 		var/singleton/xgm_gas/gas = new p //avoid initial() because of potential New() actions
 
 		if(gas.id in gas_data.gases)
-			log_world("ERROR: Duplicate gas id `[gas.id]` in `[p]`")
+			stack_trace("ERROR: Duplicate gas id `[gas.id]` in `[p]`")
 
 		gas_data.gases += gas.id
 		gas_data.name[gas.id] = gas.name
@@ -44,27 +44,62 @@
 		gas_data.molar_mass[gas.id] = gas.molar_mass
 		if(gas.overlay_limit)
 			gas_data.overlay_limit[gas.id] = gas.overlay_limit
-			var/obj/effect/gas_overlay/I = new()
-			if(gas.tile_overlay)
-				I.icon_state = gas.tile_overlay
-			if(gas.tile_color)
-				gas_data.tile_overlay_color[gas.id] = gas.tile_color
-				I.color = gas.tile_color
-			gas_data.tile_overlay[gas.id] = I
+			gas_data.tile_overlay[gas.id] = gas.tile_overlay
+			gas_data.tile_overlay_color[gas.id] = gas.tile_color
 		gas_data.flags[gas.id] = gas.flags
 
 	return 1
 
-/obj/effect/gas_overlay
+/obj/gas_overlay
 	name = "gas"
-	desc = DESC_PARENT
+	desc = "You shouldn't be clicking this."
 	icon = 'icons/effects/tile_effects.dmi'
 	icon_state = "generic"
 	layer = FIRE_LAYER
-	appearance_flags = RESET_COLOR
-	mouse_opacity = MOUSE_OPACITY_TRANSPARENT
+	appearance_flags = DEFAULT_APPEARANCE_FLAGS | RESET_COLOR
+	mouse_opacity = 0
+	var/gas_id
 
-/obj/effect/gas_overlay/Initialize()
+/obj/gas_overlay/proc/update_alpha_animation(new_alpha)
+	animate(src, alpha = new_alpha)
+	alpha = new_alpha
+	animate(src, alpha = 0.8 * new_alpha, time = 10, easing = SINE_EASING | EASE_OUT, loop = -1)
+	animate(alpha = new_alpha, time = 10, easing = SINE_EASING | EASE_IN, loop = -1)
+
+/obj/gas_overlay/Initialize(mapload, gas)
 	. = ..()
-	animate(src, alpha = 175, time = 10, easing = SINE_EASING | EASE_OUT, loop = -1)
-	animate(alpha = 255, time = 10, easing = SINE_EASING | EASE_IN, loop = -1)
+	gas_id = gas
+	if(gas_data.tile_overlay[gas_id])
+		icon_state = gas_data.tile_overlay[gas_id]
+		color = gas_data.tile_overlay_color[gas_id]
+
+/obj/gas_overlay/heat
+	name = "gas"
+	desc = "You shouldn't be clicking this."
+	plane = HEAT_EFFECT_PLANE
+	gas_id = GAS_HEAT
+	render_source = HEAT_EFFECT_TARGET
+
+/obj/gas_overlay/heat/Initialize(mapload, gas)
+	. = ..()
+	icon = null
+	icon_state = null
+
+/obj/effect/gas_cold_back
+	render_source = COLD_EFFECT_BACK_TARGET
+	plane = DEFAULT_PLANE
+	layer = BELOW_OBJ_LAYER
+
+/obj/gas_overlay/cold
+	name = "gas"
+	desc = "You shouldn't be clicking this."
+	gas_id = GAS_COLD
+	render_source = COLD_EFFECT_TARGET
+	var/obj/effect/gas_cold_back/b = null
+
+/obj/gas_overlay/cold/Initialize(mapload, gas)
+	. = ..()
+	icon = null
+	icon_state = null
+	b = new()
+	vis_contents += b

code/modules/xgm/xgm_gas_mixture.dm

@@ -13,7 +13,9 @@
 	var/group_multiplier = 1
 
 	///List of active tile overlays for this gas_mixture.  Updated by check_tile_graphic()
-	var/list/graphic
+	var/list/graphic = list()
+	//Cache of gas overlay objects
+	var/list/tile_overlay_cache
 
 /datum/gas_mixture/New(_volume = CELL_VOLUME, _temperature = 0, _group_multiplier = 1)
 	volume = _volume
@@ -353,32 +355,73 @@
 	zburn(null, force_burn=0, no_check=0) //could probably just call zburn() here with no args but I like being explicit.
 
 
-///Rechecks the gas_mixture and adjusts the graphic list if needed.
-///Two lists can be passed by reference if you need know specifically which graphics were added and removed.
+//Rechecks the gas_mixture and adjusts the graphic list if needed.
+//Two lists can be passed by reference if you need know specifically which graphics were added and removed.
 /datum/gas_mixture/proc/check_tile_graphic(list/graphic_add = null, list/graphic_remove = null)
+	for(var/obj/gas_overlay/O in graphic)
+		if(istype(O, /obj/gas_overlay/heat))
+			continue
+		if(istype(O, /obj/gas_overlay/cold))
+			continue
+		if(gas[O.gas_id] <= gas_data.overlay_limit[O.gas_id])
+			LAZYADD(graphic_remove, O)
 	for(var/g in gas_data.overlay_limit)
-		if (graphic && graphic[gas_data.tile_overlay[g]])
-			//Overlay is already applied for this gas, check if it's still valid.
-			if(gas[g] <= gas_data.overlay_limit[g])
-				LAZYADD(graphic_remove, gas_data.tile_overlay[g])
-		else
-			//Overlay isn't applied for this gas, check if it's valid and needs to be added.
-			if(gas[g] > gas_data.overlay_limit[g])
-				if(!(gas_data.tile_overlay[g] in graphic))
-					LAZYADD(graphic_add, gas_data.tile_overlay[g])
-
+		//Overlay isn't applied for this gas, check if it's valid and needs to be added.
+		if(gas[g] > gas_data.overlay_limit[g])
+			var/tile_overlay = get_tile_overlay(g)
+			if(!(tile_overlay in graphic))
+				LAZYADD(graphic_add, tile_overlay)
 	. = 0
+
+	var/heat_overlay = get_tile_overlay(GAS_HEAT)
+	//If it's hot add something
+	if(temperature >= CARBON_LIFEFORM_FIRE_RESISTANCE)
+		if(!(heat_overlay in graphic))
+			LAZYADD(graphic_add, heat_overlay)
+	else if (heat_overlay in graphic)
+		LAZYADD(graphic_remove, heat_overlay)
+
+	var/cold_overlay = get_tile_overlay(GAS_COLD)
+	if(temperature <= FOGGING_TEMPERATURE && (return_pressure() >= (ONE_ATMOSPHERE / 4)))
+		if(!(cold_overlay in graphic))
+			LAZYADD(graphic_add, cold_overlay)
+	else if (cold_overlay in graphic)
+		LAZYADD(graphic_remove, cold_overlay)
+
 	//Apply changes
-	if(graphic_add && LAZYLEN(graphic_add))
-		LAZYINITLIST(graphic)
-		for (var/entry in graphic_add)
-			graphic[entry] = TRUE	// This is an assoc list to make checking it a bit faster.
+	if(graphic_add && length(graphic_add))
+		graphic |= graphic_add
 		. = 1
-	if(graphic_add && LAZYLEN(graphic_remove))
+	if(graphic_remove && length(graphic_remove))
 		graphic -= graphic_remove
 		. = 1
+	if(length(graphic))
+		var/pressure_mod = clamp(return_pressure() / ONE_ATMOSPHERE, 0, 2)
+		for(var/obj/gas_overlay/O in graphic)
+			if(istype(O, /obj/gas_overlay/heat)) //Heat based
+				var/new_alpha = clamp(max(125, 255 * ((temperature - CARBON_LIFEFORM_FIRE_RESISTANCE) / CARBON_LIFEFORM_FIRE_RESISTANCE * 4)), 125, 255)
+				if(new_alpha != O.alpha)
+					O.update_alpha_animation(new_alpha)
+				continue
+			if(istype(O, /obj/gas_overlay/cold))
+				var/new_alpha = clamp(max(125, 200 * (1 - ((temperature - MAX_FOG_TEMPERATURE) / (FOGGING_TEMPERATURE - MAX_FOG_TEMPERATURE)))), 125, 200)
+				if(new_alpha != O.alpha)
+					O.update_alpha_animation(new_alpha)
+				continue
+			var/concentration_mod = clamp(gas[O.gas_id] / total_moles, 0.1, 1)
+			var/new_alpha = min(230, round(pressure_mod * concentration_mod * 180, 5))
+			if(new_alpha != O.alpha)
+				O.update_alpha_animation(new_alpha)
 
-	UNSETEMPTY(graphic)
+/datum/gas_mixture/proc/get_tile_overlay(gas_id)
+	if(!LAZYACCESS(tile_overlay_cache, gas_id))
+		if(gas_id == GAS_HEAT) //Not a real gas but functionally same thing
+			LAZYSET(tile_overlay_cache, gas_id, new/obj/gas_overlay/heat(null, GAS_HEAT))
+		else if(gas_id == GAS_COLD) //Not a real gas but functionally same thing
+			LAZYSET(tile_overlay_cache, gas_id, new/obj/gas_overlay/cold(null, GAS_COLD))
+		else
+			LAZYSET(tile_overlay_cache, gas_id, new/obj/gas_overlay(null, gas_id))
+	return tile_overlay_cache[gas_id]
 
 ///Simpler version of merge(), adjusts gas amounts directly and doesn't account for temperature or group_multiplier.
 /datum/gas_mixture/proc/add(datum/gas_mixture/right_side)

html/changelogs/fluffyghost-516renderer.yml

@@ -0,0 +1,60 @@
+################################
+# 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
+#     - (fixes bugs)
+#   wip
+#     - (work in progress)
+#   qol
+#     - (quality of life)
+#   soundadd
+#     - (adds a sound)
+#   sounddel
+#     - (removes a sound)
+#   rscadd
+#     - (adds a feature)
+#   rscdel
+#     - (removes a feature)
+#   imageadd
+#     - (adds an image or sprite)
+#   imagedel
+#     - (removes an image or sprite)
+#   spellcheck
+#     - (fixes spelling or grammar)
+#   experiment
+#     - (experimental change)
+#   balance
+#     - (balance changes)
+#   code_imp
+#     - (misc internal code change)
+#   refactor
+#     - (refactors code)
+#   config
+#     - (makes a change to the config files)
+#   admin
+#     - (makes changes to administrator tools)
+#   server
+#     - (miscellaneous changes to server)
+#################################
+
+# Your name.
+author: FluffyGhost
+
+# 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, this gets changed to [] after reading.  Just remove the brackets when you add new shit.
+# Please surround your changes in  double quotes ("). It works without them, but if you use certain characters it screws up compiling. The quotes will not show up in the changelog.
+changes:
+  - refactor: "Updated the renderers to work with BYOND 516."
+  - refactor: "Some update of ZAS to hopefully be more efficient, and cold/hot air effects."
+  - qol: "Gas effects are now less prominent."