Hydroponics Overhaul: the Atmos Update (#21059)

### What does this achieve? This overhauls hydroponics to integrate atmospherics mechanics more heavily, with the hope of establishing the foundations of much more significant mechanical depth to what has been a very shallow job for a very long time. Currently, this is limited to the preferences and tolerances system - hydroponics is now comprised of five 'reservoirs' of segmented portions of the pipe system connected to trays, with a gas heater and cooler to change temperature across the entire system, and you can cut off each reservoir with valves to separate it from the rest and maintain its current temperature. Five tiers, each with a trait, have been implemented for the different heat ideals of different plants. Plants from Adhomai and Moghes are the most environmentally extreme, and cannot be grown outside of drastically low and high temperatures respectively, limiting them to hydroponics proper, whereas colder and warmer terrestrial plants can be grown at room temperature but will grow much slower than if they were within their preferences. **This means there will be plants that outright cannot be grown in the garden.** With this, hydroponics becomes an atmos puzzle. If you need to grow nothing but mushrooms you'll probably send every tray cold, but if you need a diversity of different temperature ranges you'll have to fine-tune your setup and routine to have everything within their preferences. Once you're done growing mushrooms off one reservoir, you may turn the heat in it up so you can grow citrus, etc etc. This also solves several bugs and makes a lot of QoL changes, the full changelog will list everything. <img width="608" height="320" alt="image" src="https://github.com/user-attachments/assets/12e53224-d9be-4e69-9c48-6185d3303a14" /> <img width="384" height="608" alt="image" src="https://github.com/user-attachments/assets/1a0c2b0c-8ad6-4f5c-b992-2e78035ab52d" /> <img width="640" height="512" alt="image" src="https://github.com/user-attachments/assets/1cf837d1-3db5-440a-a465-071841febaea" /> ### What about the mapping? Atmos has been integrated into every hydroponics tray in the mapping changes, rather than only on D1 like at present, to support the new mechanics. I've moved as much stuff up to D2 as I could fit, in the interest of getting players to the more visible and socially viable spot rather than hiding in their basement. D1 is now exclusively intended as a storage area, laboratory, and now has an expanded Hazardous Specimens unit. ### To-do before review - [x] Ensure that chefs can still do alien-specific menus without a hydroponicist, now that they can't necessarily grow their stuff in the garden - loadout produce box, maybe? - [x] Remap xenobotany - [x] Review whether every alien crop can still grow on its respective in-game exoplanet - Adhomai might be okay? (Adhomai is essentially fine, Moghes will need work before we go back into the sector) - [x] Make sure the yield_mod interactions aren't explosive. ### Known issues 1. Yes, the examine on hydroponics trays is huge. In the long-term, IMO this should probably be a TGUI. 2. The TGUI on seed storage units is clunky, this is also on the to-do list for the future. 3. The logic for calculating growth is bad, it's very RNG-skewed. Another thing for later. 4. Atmos mechanics like these can be pretty opaque to players, so this will certainly require a wiki update shortly after merge describing exactly what steps you should take to operate the new atmos equipment.
2026-08-21 20:11:04 +01:00 · 2025-08-02 19:58:04 +00:00
parent f8a791e92a
commit d8c991674f
36 changed files with 5928 additions and 5366 deletions
@@ -202,7 +202,6 @@
 	name = "\improper Drying Rack"
 	desc = "A machine for drying plants."
 	icon_state = "drying_rack"
-	opacity = TRUE
 	accepted_items = list(/obj/item/reagent_containers/food/snacks)
 	contents_path = null

@@ -5,6 +5,10 @@
 	icon_state = "bee_pack"
 	var/full = TRUE

+/obj/item/bee_pack/mechanics_hints(mob/user, distance, is_adjacent)
+	. += ..()
+	. += "Insert this into a beehive with an open lid to populate it with bees."
+
 /obj/item/bee_pack/Initialize()
 	. = ..()
 	AddOverlays("bee_pack-full")
@@ -4,6 +4,10 @@
 	icon = 'icons/obj/beekeeping.dmi'
 	icon_state = "beehive_assembly"

+/obj/item/beehive_assembly/assembly_hints(mob/user, distance, is_adjacent)
+	. += ..()
+	. += "Use this on any unoccupied turf to place a beehive where you are standing."
+
 /obj/item/beehive_assembly/attack_self(var/mob/user)
 	to_chat(user, SPAN_NOTICE("You start assembling \the [src]..."))
 	if(do_after(user, 30))
@@ -14,6 +18,7 @@

 /obj/machinery/beehive
 	name = "beehive"
+	desc = "They make honey in these, allegedly."
 	icon = 'icons/obj/beekeeping.dmi'
 	icon_state = "beehive"
 	density = TRUE
@@ -28,6 +33,17 @@

 	var/list/owned_bee_swarms = list()

+/obj/machinery/beehive/mechanics_hints(mob/user, distance, is_adjacent)
+	. += ..()
+	. += "Use a <b>crowbar</b> to open a beehive, and then retrieve the frames from inside with an open hand."
+	. += "You can populate a beehive using a <b>bee pack</b>, and review the status of the hive inside with a <b>plant analyzer</b>."
+	. += "While occupied by bees and within several turfs of a growing plant, bees will increase the health of the adjacent plant. This can be particularly \
+	useful if you're low on fertiliser and need to keep your crops alive!"
+
+/obj/machinery/beehive/disassembly_hints(mob/user, distance, is_adjacent)
+	. += ..()
+	. += "This can be dismantled with a <b>screwdriver</b>."
+
 /obj/machinery/beehive/feedback_hints(mob/user, distance, is_adjacent)
 	. += ..()
 	. += SPAN_NOTICE("\The [src] is holding <b>[frames]/[maxFrames]</b> frames.")
@@ -14,6 +14,11 @@
 		. += SPAN_NOTICE("It's holding \the <b>[contained_frame]</b>.")
 	. += SPAN_NOTICE("It contains <b>[honey]</b> units of honey for collection.")

+/obj/machinery/honey_extractor/mechanics_hints(mob/user, distance, is_adjacent)
+	. += ..()
+	. += "Once filled honeycombs have been obtained, insert them into this device to process them into wax and honey. The honey can be retrieved from \
+	the extractor with any reagent container."
+
 /obj/machinery/honey_extractor/attackby(obj/item/attacking_item, mob/user)
 	if(contained_frame)
 		to_chat(user, SPAN_WARNING("\The [src] is currently spinning, wait until it's finished."))
@@ -6,6 +6,10 @@
 	w_class = WEIGHT_CLASS_SMALL
 	var/honey = 0

+/obj/item/honey_frame/feedback_hints(mob/user, distance, is_adjacent)
+	. += ..()
+	. += SPAN_NOTICE("This contains <b>[honey] units</b> of honey.")
+
 /obj/item/honey_frame/filled
 	name = "filled beehive frame"
 	desc = "A frame for the beehive that has been filled with honeycombs."
@@ -8,6 +8,10 @@
 	var/caught_bees = 0
 	var/feralbees

+/obj/item/bee_net/mechanics_hints(mob/user, distance, is_adjacent)
+	. += ..()
+	. += "This can be used to contain rogue bees, although beware overcrowding the net! If you do, the contained bees may all break out at once."
+
 /obj/item/bee_net/get_examine_text(mob/user, distance, is_adjacent, infix, suffix)
 	. = ..()
 	if(caught_bees)
@@ -8,6 +8,10 @@
 	w_class = WEIGHT_CLASS_BULKY
 	var/max_fuel = 60

+/obj/item/bee_smoker/mechanics_hints(mob/user, distance, is_adjacent)
+	. += ..()
+	. += "Use this to pacify bees before extracting frames from a hive!"
+
 /obj/item/bee_smoker/antagonist_hints(mob/user, distance, is_adjacent)
 	. += ..()
 	. += "This device can be used to blind people in short range."
@@ -49,6 +49,13 @@
 	/// If set, overrides the extended scription of the product (Useful to describe the 'lore')
 	var/product_desc_extended

+	/// The base percentage chance the plant will grow per each process().
+	var/base_growth_speed = 10
+	/// The boost to the base growth speed applied to the plant if within temperature preferences.
+	var/temperature_growth_boost = 20
+	/// The boost to the base growth speed applied to the plant if within light preferences.
+	var/light_growth_boost = 5
+
 	var/force_layer
 	var/hydrotray_only

@@ -80,21 +87,21 @@
 	set_trait(TRAIT_REQUIRES_NUTRIENTS,   1)
 	set_trait(TRAIT_REQUIRES_WATER,       1)
 	set_trait(TRAIT_WATER_CONSUMPTION,    3)
-	set_trait(TRAIT_LIGHT_TOLERANCE,      3) // Plants will begin to die if the light levels are three or more lumens from their ideal.
+	set_trait(TRAIT_LIGHT_TOLERANCE,      2.5) // Plants will begin to die if the light levels are 2.5 or more lumens from their ideal.
 	set_trait(TRAIT_TOXINS_TOLERANCE,     5)
 	set_trait(TRAIT_PEST_TOLERANCE,       5)
 	set_trait(TRAIT_WEED_TOLERANCE,       5)
-	set_trait(TRAIT_IDEAL_LIGHT,          5)
-	set_trait(TRAIT_HEAT_TOLERANCE,       20) // Plants will begin to die if they're twenty or more degrees from their ideal temperature.
+	set_trait(TRAIT_IDEAL_LIGHT,          IDEAL_LIGHT_TEMPERATE)
+	set_trait(TRAIT_HEAT_TOLERANCE,       12) // Plants will begin to die if they're twelve or more degrees from their ideal temperature.
 	set_trait(TRAIT_LOWKPA_TOLERANCE,     25) // Plants survive all the way down to a quarter of an atmosphere!
 	set_trait(TRAIT_ENDURANCE,            100)
 	set_trait(TRAIT_HIGHKPA_TOLERANCE,    200)
-	set_trait(TRAIT_IDEAL_HEAT,           293)
+	set_trait(TRAIT_IDEAL_HEAT,           IDEAL_HEAT_TEMPERATE)
 	set_trait(TRAIT_NUTRIENT_CONSUMPTION, 0.25)
 	set_trait(TRAIT_PLANT_COLOUR,         "#46B543")
 	set_trait(TRAIT_LARGE,                0)
 	set_trait(TRAIT_HEAT_PREFERENCE,      5) // By default, plants grow faster in a temperature within five degrees of their ideal.
-	set_trait(TRAIT_LIGHT_PREFERENCE,     2) // Similarly, they grow faster under lumens within two of their ideal.
+	set_trait(TRAIT_LIGHT_PREFERENCE,     1.5) // Similarly, they grow faster under lumens within 1.5 of their ideal.

 	setup_traits()

@@ -333,7 +340,7 @@

 	// We take the absolute value of the environment's temperature minus the ideal heat - closer to 0 is better, in this case.
 	// If that value is greater than the heat tolerance, we apply some damage to the plant.
-	if(abs(environment.temperature - get_trait(TRAIT_IDEAL_HEAT)) > get_trait(TRAIT_HEAT_TOLERANCE))
+	if(check_heat_tolerances(environment))
 		health_change += rand(1,3) * HYDRO_SPEED_MULTIPLIER

 	// Handle gas production.
@@ -349,11 +356,59 @@
 			light_supplied = 5

 	if(light_supplied)
-		if(abs(light_supplied - get_trait(TRAIT_IDEAL_LIGHT)) > get_trait(TRAIT_LIGHT_TOLERANCE))
+		if(check_light_tolerances(light_supplied))
 			health_change += rand(1,3) * HYDRO_SPEED_MULTIPLIER

 	return health_change

+/// Returns true if a plant is outside their light tolerances, otherwise false.
+/datum/seed/proc/check_light_tolerances(var/light_supplied)
+	if(abs(light_supplied - get_trait(TRAIT_IDEAL_LIGHT)) > get_trait(TRAIT_LIGHT_TOLERANCE))
+		return TRUE
+	return FALSE
+
+/// Returns true if a plant is outside their heat tolerances, otherwise false.
+/datum/seed/proc/check_heat_tolerances(var/datum/gas_mixture/environment)
+	if(abs(environment.temperature - get_trait(TRAIT_IDEAL_HEAT)) > get_trait(TRAIT_HEAT_TOLERANCE))
+		return TRUE
+	return FALSE
+
+/// Returns true if a plant is in their light preferences, otherwise false.
+/datum/seed/proc/check_light_preferences(var/light_supplied)
+	if(abs(light_supplied - get_trait(TRAIT_IDEAL_LIGHT)) < get_trait(TRAIT_LIGHT_PREFERENCE))
+		return TRUE
+	return FALSE
+
+/// Returns true if a plant is in their heat preferences, otherwise false.
+/datum/seed/proc/check_heat_preferences(var/datum/gas_mixture/environment)
+	if(abs(environment.temperature - get_trait(TRAIT_IDEAL_HEAT)) < get_trait(TRAIT_HEAT_PREFERENCE))
+		return TRUE
+	return FALSE
+
+/// Checks the preferences of the seed, and returns the percentage chance for growth to occur. Called in tray_process.
+/datum/seed/proc/get_probability_of_growth(var/turf/current_turf, var/datum/gas_mixture/environment, var/light_supplied, var/check_only)
+	// By standard, the probability of growth is only the base. This rises if growing conditions are within their preferences.
+	// This is intended to motivate the use of atmospheric equipment to more viably grow plants with irregular preferences.
+	// You *can* grow plants outside of their preferences without them dying so long as it's within their tolerance, but it'll be pretty slow.
+	var/return_probability = base_growth_speed
+
+	// Handle light requirements.
+	if(!light_supplied)
+		if (TURF_IS_DYNAMICALLY_LIT(current_turf))
+			light_supplied = current_turf.get_lumcount(0, 3) * 10
+		else
+			light_supplied = 5
+
+	// Are we within the preference zone for temperature? If so, add to the chance of growth.
+	if(check_heat_preferences(environment))
+		return_probability += temperature_growth_boost
+
+	// Same for light!
+	if(check_light_preferences(light_supplied))
+		return_probability += light_growth_boost
+
+	return return_probability
+
 /datum/seed/proc/apply_special_effect(var/mob/living/target,var/obj/item/thrown)

 	var/impact = 1
@@ -736,7 +791,7 @@
 	return (P ? P : 0)

 /// Place the plant products at the feet of the user.
-/datum/seed/proc/harvest(var/mob/user,var/yield_mod,var/harvest_sample,var/force_amount)
+/datum/seed/proc/harvest(var/mob/user,var/yield_mod,var/harvest_sample,var/force_amount,var/stunted_status = FALSE)
 	if(!user)
 		return

@@ -769,6 +824,10 @@
 					total_yield = get_trait(TRAIT_YIELD) + rand(yield_mod)
 				total_yield = max(1,total_yield)

+		// If the plant is stunted, you get half the yield.
+		if(stunted_status)
+			total_yield *= 0.5
+
 		for(var/i = 0;i<total_yield;i++)
 			spawn_seed(get_turf(user))

@@ -20,7 +20,8 @@
 	set_trait(TRAIT_PRODUCT_COLOUR,"#378C61")
 	set_trait(TRAIT_PLANT_COLOUR,"#378C61")
 	set_trait(TRAIT_PLANT_ICON,"tree5")
-	set_trait(TRAIT_IDEAL_HEAT, 278)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_ADHOMAI)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_DIM)
 	set_trait(TRAIT_NUTRIENT_CONSUMPTION, 0.15)

 /obj/item/seeds/shandseed
@@ -45,7 +46,8 @@
 	set_trait(TRAIT_PRODUCT_COLOUR,"#4CC5C7")
 	set_trait(TRAIT_PLANT_COLOUR,"#4CC789")
 	set_trait(TRAIT_PLANT_ICON,"bush7")
-	set_trait(TRAIT_IDEAL_HEAT, 278)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_ADHOMAI)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_DIM)
 	set_trait(TRAIT_NUTRIENT_CONSUMPTION, 0.15)

 /obj/item/seeds/mtearseed
@@ -70,7 +72,8 @@
 	set_trait(TRAIT_PRODUCT_COLOUR,"#87CEEB")
 	set_trait(TRAIT_PLANT_COLOUR,"#4D8F53")
 	set_trait(TRAIT_PLANT_ICON,"alien2")
-	set_trait(TRAIT_IDEAL_HEAT, 278)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_ADHOMAI)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_DIM)
 	set_trait(TRAIT_WATER_CONSUMPTION, 8)

 /obj/item/seeds/earthenroot
@@ -97,9 +100,10 @@
 	set_trait(TRAIT_PRODUCT_COLOUR,"#C4AE7A")
 	set_trait(TRAIT_PLANT_COLOUR,"#4D8F53")
 	set_trait(TRAIT_PLANT_ICON,"bush4")
-	set_trait(TRAIT_IDEAL_HEAT, 278)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_ADHOMAI)
 	set_trait(TRAIT_WATER_CONSUMPTION, 6)
 	set_trait(TRAIT_NUTRIENT_CONSUMPTION, 0.15)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_DIM)

 /obj/item/seeds/dirtberries
 	seed_type = "dirtberries"
@@ -127,8 +131,8 @@
 	set_trait(TRAIT_PLANT_COLOUR,"#31331c")
 	set_trait(TRAIT_PLANT_ICON,"nfrihi")
 	set_trait(TRAIT_WATER_CONSUMPTION, 4)
-	set_trait(TRAIT_IDEAL_LIGHT, 3)
-	set_trait(TRAIT_IDEAL_HEAT, 253)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_DIM)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_ADHOMAI)

 /obj/item/seeds/blizzard
 	seed_type = "nfrihi"
@@ -154,9 +158,9 @@
 	set_trait(TRAIT_PRODUCT_COLOUR,"#fffdf7")
 	set_trait(TRAIT_PLANT_COLOUR,"#31331c")
 	set_trait(TRAIT_PLANT_ICON,"nmshaan")
-	set_trait(TRAIT_IDEAL_HEAT, 253)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_ADHOMAI)
 	set_trait(TRAIT_WATER_CONSUMPTION, 4)
-	set_trait(TRAIT_IDEAL_LIGHT, 3)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_DIM)

 /obj/item/seeds/sugartree
 	seed_type = "sugar tree"
@@ -15,8 +15,8 @@
 	set_trait(TRAIT_PRODUCT_ICON,      "mollusc")
 	set_trait(TRAIT_PLANT_ICON,        "mollusc")
 	set_trait(TRAIT_WATER_CONSUMPTION, 6)
-	set_trait(TRAIT_IDEAL_HEAT,        284)
-	set_trait(TRAIT_LIGHT_TOLERANCE,   6)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_COLD)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_DIM)
 	set_trait(TRAIT_PRODUCT_COLOUR,    "#aaabba")
 	set_trait(TRAIT_PLANT_COLOUR,      "#aaabba")

@@ -64,3 +64,19 @@

 /obj/item/seeds/clam/rasval
 	seed_type = "rasval clam"
+
+/datum/seed/grass/sea
+	name = "seaweed"
+	seed_name = "seaweed"
+	display_name = "seaweed"
+	kitchen_tag = "seaweed"
+
+/datum/seed/grass/sea/setup_traits()
+	..()
+	set_trait(TRAIT_PRODUCT_COLOUR, "#0F6E56")
+	set_trait(TRAIT_PLANT_COLOUR, "#0D4836")
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_COLD)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_DIM)
+
+/obj/item/seeds/seaweed
+	seed_type = "seaweed"
@@ -35,7 +35,6 @@
 	set_trait(TRAIT_PRODUCT_ICON,"flower3")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#B33715")
 	set_trait(TRAIT_PLANT_ICON,"flower3")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
 	set_trait(TRAIT_WATER_CONSUMPTION, 0.5)
 	set_trait(TRAIT_NUTRIENT_CONSUMPTION, 0.15)

@@ -53,7 +52,7 @@
 	set_trait(TRAIT_PRODUCT_ICON,"flower2")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#FFF700")
 	set_trait(TRAIT_PLANT_ICON,"flower2")
-	set_trait(TRAIT_IDEAL_LIGHT, 7)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
 	set_trait(TRAIT_WATER_CONSUMPTION, 6)
 	set_trait(TRAIT_NUTRIENT_CONSUMPTION, 0.15)

@@ -20,7 +20,8 @@
 	set_trait(TRAIT_PRODUCT_COLOUR,"#3AF026")
 	set_trait(TRAIT_PLANT_ICON,"tree")
 	set_trait(TRAIT_FLESH_COLOUR,"#3AF026")
-	set_trait(TRAIT_IDEAL_HEAT, 304)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)

 /obj/item/seeds/limeseed
 	seed_type = "lime"
@@ -37,7 +38,6 @@
 	set_trait(TRAIT_PRODUCES_POWER,1)
 	set_trait(TRAIT_PRODUCT_COLOUR,"#F0E226")
 	set_trait(TRAIT_FLESH_COLOUR,"#F0E226")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)

 /obj/item/seeds/lemonseed
 	seed_type = "lemon"
@@ -78,7 +78,8 @@
 	set_trait(TRAIT_PRODUCT_COLOUR,"#BB6AC4")
 	set_trait(TRAIT_PLANT_COLOUR,"#378F2E")
 	set_trait(TRAIT_PLANT_ICON,"vine")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)
 	set_trait(TRAIT_NUTRIENT_CONSUMPTION, 0.15)

 /obj/item/seeds/grapeseed
@@ -294,7 +295,6 @@
 	set_trait(TRAIT_PRODUCT_COLOUR,"#FF540A")
 	set_trait(TRAIT_PLANT_ICON,"tree2")
 	set_trait(TRAIT_FLESH_COLOUR,"#E8E39B")
-	set_trait(TRAIT_IDEAL_LIGHT, 4)

 /obj/item/seeds/appleseed
 	seed_type = "apple"
@@ -348,7 +348,8 @@
 	set_trait(TRAIT_PRODUCT_ICON,"treefruit")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#CCA935")
 	set_trait(TRAIT_PLANT_ICON,"tree2")
-	set_trait(TRAIT_IDEAL_HEAT, 304)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)
 	set_trait(TRAIT_WATER_CONSUMPTION, 6)

 /datum/seed/banana
@@ -369,8 +370,8 @@
 	set_trait(TRAIT_PRODUCT_COLOUR,"#FFEC1F")
 	set_trait(TRAIT_PLANT_COLOUR,"#69AD50")
 	set_trait(TRAIT_PLANT_ICON,"tree4")
-	set_trait(TRAIT_IDEAL_HEAT, 304)
-	set_trait(TRAIT_IDEAL_LIGHT, 7)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)
 	set_trait(TRAIT_WATER_CONSUMPTION, 6)

 /obj/item/seeds/bananaseed
@@ -420,8 +421,8 @@
 	set_trait(TRAIT_PLANT_COLOUR,"#49be45")
 	set_trait(TRAIT_PLANT_ICON,"vine2")
 	set_trait(TRAIT_FLESH_COLOUR,"#ff5858")
-	set_trait(TRAIT_IDEAL_HEAT, 304)
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)
 	set_trait(TRAIT_WATER_CONSUMPTION, 6)

 /obj/item/seeds/watermelonseed
@@ -469,7 +470,8 @@
 	set_trait(TRAIT_PRODUCT_ICON,"bean2")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#be9109")
 	set_trait(TRAIT_PLANT_ICON,"bush2")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)

 /obj/item/seeds/coffeeseed
 	seed_type = "coffee"
@@ -491,7 +493,8 @@
 	set_trait(TRAIT_PRODUCT_ICON,"bean2")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#be9109")
 	set_trait(TRAIT_PLANT_ICON,"bush2")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)

 /obj/item/seeds/richcoffeeseed
 	seed_type = "richcoffee"
@@ -15,7 +15,6 @@
 	set_trait(TRAIT_PRODUCT_COLOUR,"#DBD37D")
 	set_trait(TRAIT_PLANT_COLOUR,"#BFAF82")
 	set_trait(TRAIT_PLANT_ICON,"stalk2")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
 	set_trait(TRAIT_NUTRIENT_CONSUMPTION, 0.15)

 /obj/item/seeds/wheatseed
@@ -39,8 +38,8 @@
 	set_trait(TRAIT_PRODUCT_COLOUR,"#FFF23B")
 	set_trait(TRAIT_PLANT_COLOUR,"#87C969")
 	set_trait(TRAIT_PLANT_ICON,"corn")
-	set_trait(TRAIT_IDEAL_HEAT, 298)
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)
 	set_trait(TRAIT_WATER_CONSUMPTION, 6)

 /obj/item/seeds/cornseed
@@ -64,6 +63,8 @@
 	set_trait(TRAIT_PLANT_COLOUR,"#8ED17D")
 	set_trait(TRAIT_PLANT_ICON,"stalk2")
 	set_trait(TRAIT_WATER_CONSUMPTION, 6)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)
 	set_trait(TRAIT_NUTRIENT_CONSUMPTION, 0.15)

 /obj/item/seeds/riceseed
@@ -16,12 +16,11 @@
 	set_trait(TRAIT_PRODUCT_ICON,"herb")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#4dd298")
 	set_trait(TRAIT_PLANT_ICON,"herb")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)

 /obj/item/seeds/mintseed
 	seed_type = "mint"

-
 /datum/seed/tea
 	name = "tea"
 	seed_name = "tea leaf"
@@ -38,7 +37,7 @@
 	set_trait(TRAIT_PRODUCT_ICON,"herb")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#4fd24d")
 	set_trait(TRAIT_PLANT_ICON,"herb")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)

 /obj/item/seeds/teaseed
 	seed_type = "tea"
@@ -58,7 +57,7 @@
 	set_trait(TRAIT_PRODUCT_ICON,"herb")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#0E1F0E")
 	set_trait(TRAIT_PLANT_ICON,"herb")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)

 /obj/item/seeds/sencha
 	seed_type = "sencha"
@@ -78,7 +77,7 @@
 	set_trait(TRAIT_PRODUCT_ICON,"herb")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#5C6447")
 	set_trait(TRAIT_PLANT_ICON,"herb")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)

 /obj/item/seeds/tieguanyin
 	seed_type = "tieguanyin"
@@ -98,7 +97,7 @@
 	set_trait(TRAIT_PRODUCT_ICON,"herb")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#534337")
 	set_trait(TRAIT_PLANT_ICON,"herb")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)

 /obj/item/seeds/jaekseol
 	seed_type = "jaekseol"
@@ -119,7 +118,7 @@
 	set_trait(TRAIT_PRODUCT_ICON, "herb")
 	set_trait(TRAIT_PRODUCT_COLOUR, "#056608")
 	set_trait(TRAIT_PLANT_ICON, "herb")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)

 /obj/item/seeds/cocaseed
 	seed_type = "coca"
@@ -35,7 +35,8 @@
 	set_trait(TRAIT_PRODUCT_COLOUR,"#B4D6BD")
 	set_trait(TRAIT_PLANT_COLOUR,"#6BBD68")
 	set_trait(TRAIT_PLANT_ICON,"stalk3")
-	set_trait(TRAIT_IDEAL_HEAT, 304)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)

 /obj/item/seeds/sugarcaneseed
 	seed_type = "sugarcane"
@@ -64,21 +65,6 @@
 /obj/item/seeds/grassseed
 	seed_type = "grass"

-/datum/seed/grass/sea
-	name = "seaweed"
-	seed_name = "seaweed"
-	display_name = "seaweed"
-	kitchen_tag = "seaweed"
-
-/datum/seed/grass/sea/setup_traits()
-	..()
-	set_trait(TRAIT_PRODUCT_COLOUR, "#0F6E56")
-	set_trait(TRAIT_PLANT_COLOUR, "#0D4836")
-	set_trait(TRAIT_IDEAL_HEAT, 284) // To fit with molluscs.
-
-/obj/item/seeds/seaweed
-	seed_type = "seaweed"
-
 /datum/seed/grass/moss
 	name = "moss"
 	seed_name = "moss"
@@ -110,7 +96,8 @@
 	set_trait(TRAIT_PRODUCT_ICON,"nuts")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#4d4d4d")
 	set_trait(TRAIT_PLANT_ICON,"vine2")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)

 /obj/item/seeds/peppercornseed
 	seed_type = "peppercorn"
@@ -25,8 +25,7 @@
 	set_trait(TRAIT_PLANT_COLOUR,"#D9C94E")
 	set_trait(TRAIT_PLANT_ICON,"mushroom")
 	set_trait(TRAIT_WATER_CONSUMPTION, 6)
-	set_trait(TRAIT_IDEAL_HEAT, 282)
-	set_trait(TRAIT_LIGHT_TOLERANCE, 6)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_COLD)

 /datum/seed/koisspore
 	name = "koisspore"
@@ -49,7 +48,6 @@
 	set_trait(TRAIT_YIELD,3)
 	set_trait(TRAIT_POTENCY,60)
 	set_trait(TRAIT_BIOLUM,1)
-	set_trait(TRAIT_IDEAL_LIGHT,5)
 	set_trait(TRAIT_REQUIRES_NUTRIENTS,0)
 	set_trait(TRAIT_REQUIRES_WATER,0)
 	set_trait(TRAIT_LIGHT_TOLERANCE,10)
@@ -75,7 +73,6 @@
 	set_trait(TRAIT_BIOLUM_PWR,-1.5)
 	set_trait(TRAIT_POTENCY,80)
 	set_trait(TRAIT_ENDURANCE,75)
-	set_trait(TRAIT_IDEAL_LIGHT,0)
 	set_trait(TRAIT_BIOLUM_COLOUR,"#FFFFFF")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#31004A")
 	set_trait(TRAIT_PLANT_COLOUR,"#31004A")
@@ -17,6 +17,7 @@
 	set_trait(TRAIT_PRODUCT_ICON,"leaves")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#00e0e0")
 	set_trait(TRAIT_PLANT_ICON,"bush8")
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)

 /obj/item/seeds/dynseed
 	seed_type = "dyn"
@@ -38,6 +39,7 @@
 	set_trait(TRAIT_PRODUCT_COLOUR,"#61E2EC")
 	set_trait(TRAIT_PLANT_ICON,"wumpavines")
 	set_trait(TRAIT_WATER_CONSUMPTION, 10)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)

 /obj/item/seeds/wulumunushaseed
 	seed_type = "wulumunusha"
@@ -61,6 +63,7 @@
 	set_trait(TRAIT_FLESH_COLOUR, "#9FE4B0")
 	set_trait(TRAIT_PLANT_ICON,"mushroom9")
 	set_trait(TRAIT_WATER_CONSUMPTION, 6)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)

 /obj/item/seeds/qlortseed
 	seed_type = "qlort"
@@ -86,6 +89,7 @@
 	set_trait(TRAIT_PLANT_COLOUR,"#4790DA")
 	set_trait(TRAIT_PLANT_ICON,"alien1")
 	set_trait(TRAIT_WATER_CONSUMPTION, 10)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)

 /obj/item/seeds/guamiseed
 	seed_type = "guami"
@@ -135,6 +139,7 @@
 	set_trait(TRAIT_PLANT_ICON,"bush")
 	set_trait(TRAIT_WATER_CONSUMPTION, 10)
 	set_trait(TRAIT_NUTRIENT_CONSUMPTION, 0.15)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)

 /obj/item/seeds/ylpha
 	seed_type = "ylpha"
@@ -161,6 +166,7 @@
 	set_trait(TRAIT_BIOLUM_COLOUR,"#990033")
 	set_trait(TRAIT_SPREAD,1)
 	set_trait(TRAIT_WATER_CONSUMPTION, 10)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)

 /obj/item/seeds/fjylozyn
 	seed_type = "fjylozyn"
@@ -17,8 +17,8 @@
 	set_trait(TRAIT_PRODUCT_COLOUR,"#749733")
 	set_trait(TRAIT_PLANT_COLOUR,"#749733")
 	set_trait(TRAIT_PLANT_ICON,"vine2")
-	set_trait(TRAIT_IDEAL_HEAT, 304)
-	set_trait(TRAIT_IDEAL_LIGHT, 7)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)
 	set_trait(TRAIT_WATER_CONSUMPTION, 6)
 	set_trait(TRAIT_NUTRIENT_CONSUMPTION, 0.15)

@@ -83,7 +83,8 @@
 	set_trait(TRAIT_PRODUCT_ICON,"ambrosia")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#9FAD55")
 	set_trait(TRAIT_PLANT_ICON,"ambrosia")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)

 /obj/item/seeds/ambrosiavulgarisseed
 	seed_type = "ambrosia"
@@ -125,7 +126,8 @@
 	set_trait(TRAIT_PRODUCT_COLOUR, "#ad5555")
 	set_trait(TRAIT_PLANT_COLOUR, "#ffa2a2")
 	set_trait(TRAIT_PLANT_ICON, "flower")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)

 /obj/item/seeds/oracleseed
 	seed_type = "oracle"
@@ -20,7 +20,6 @@
 	set_trait(TRAIT_PRODUCT_ICON,"tomato")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#D10000")
 	set_trait(TRAIT_PLANT_ICON,"bush3")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
 	set_trait(TRAIT_WATER_CONSUMPTION, 6)
 	set_trait(TRAIT_NUTRIENT_CONSUMPTION, 0.25)

@@ -19,6 +19,8 @@
 	set_trait(TRAIT_PLANT_COLOUR,"#4D8F53")
 	set_trait(TRAIT_PLANT_ICON,"tree3")
 	set_trait(TRAIT_WATER_CONSUMPTION, 6)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_MOGHES)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)

 /obj/item/seeds/xuiziseed
 	seed_type = "xuizi"
@@ -44,6 +46,8 @@
 	set_trait(TRAIT_PLANT_ICON,"bush")
 	set_trait(TRAIT_WATER_CONSUMPTION, 6)
 	set_trait(TRAIT_NUTRIENT_CONSUMPTION, 0.15)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_MOGHES)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)

 /obj/item/seeds/sarezhiseed
 	seed_type = "sarezhi"
@@ -68,7 +72,8 @@
 	set_trait(TRAIT_PRODUCT_COLOUR,"#e93e1c")
 	set_trait(TRAIT_PLANT_COLOUR,"#6d9c6b")
 	set_trait(TRAIT_PLANT_ICON,"algae")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_MOGHES)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
 	set_trait(TRAIT_WATER_CONSUMPTION, 6)
 	set_trait(TRAIT_NUTRIENT_CONSUMPTION, 0.15)

@@ -92,6 +97,8 @@
 	set_trait(TRAIT_PRODUCT_ICON,"nuts")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#866523")
 	set_trait(TRAIT_PLANT_ICON,"tree")
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_MOGHES)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)

 /obj/item/seeds/aghrasshseed
 	seed_type = "aghrassh"
@@ -116,6 +123,8 @@
 	set_trait(TRAIT_PLANT_ICON,"bush")
 	set_trait(TRAIT_WATER_CONSUMPTION, 6)
 	set_trait(TRAIT_NUTRIENT_CONSUMPTION, 0.15)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_MOGHES)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)

 /obj/item/seeds/sthberryseed
 	seed_type = "sthberry"
@@ -134,6 +143,8 @@
 	set_trait(TRAIT_IDEAL_LIGHT, 7)
 	set_trait(TRAIT_WATER_CONSUMPTION, 6)
 	set_trait(TRAIT_NUTRIENT_CONSUMPTION, 0.15)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_MOGHES)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)

 /obj/item/seeds/serkiflowerseed
 	seed_type = "serkiflower"
@@ -19,8 +19,8 @@
 	set_trait(TRAIT_PRODUCT_ICON,"chili")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#ED3300")
 	set_trait(TRAIT_PLANT_ICON,"bush2")
-	set_trait(TRAIT_IDEAL_HEAT, 304)
-	set_trait(TRAIT_IDEAL_LIGHT, 7)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)

 /obj/item/seeds/chiliseed
 	seed_type = "chili"
@@ -61,8 +61,8 @@
 	set_trait(TRAIT_PRODUCT_COLOUR,"#ff922d")
 	set_trait(TRAIT_PLANT_COLOUR,"#35d65d")
 	set_trait(TRAIT_PLANT_ICON,"bush2")
-	set_trait(TRAIT_IDEAL_HEAT, 293)
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)
 	set_trait(TRAIT_WATER_CONSUMPTION, 5)

 /obj/item/seeds/bellpepperseed
@@ -133,8 +133,8 @@
 	set_trait(TRAIT_PRODUCT_ICON,"eggplant")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#892694")
 	set_trait(TRAIT_PLANT_ICON,"bush4")
-	set_trait(TRAIT_IDEAL_HEAT, 304)
-	set_trait(TRAIT_IDEAL_LIGHT, 7)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)

 /obj/item/seeds/eggplantseed
 	seed_type = "eggplant"
@@ -179,7 +179,8 @@
 	set_trait(TRAIT_PRODUCT_ICON,"nuts")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#F2B369")
 	set_trait(TRAIT_PLANT_ICON,"bush2")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)

 /obj/item/seeds/peanutseed
 	seed_type = "peanut"
@@ -201,6 +202,8 @@
 	set_trait(TRAIT_PRODUCT_ICON,"bean")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#EBE7C0")
 	set_trait(TRAIT_PLANT_ICON,"stalk")
+	set_trait(TRAIT_IDEAL_LIGHT, IDEAL_LIGHT_HIGH)
+	set_trait(TRAIT_IDEAL_HEAT, IDEAL_HEAT_TROPICAL)

 /obj/item/seeds/soyaseed
 	seed_type = "soybean"
@@ -245,7 +248,6 @@
 	set_trait(TRAIT_PRODUCT_ICON, "bean")
 	set_trait(TRAIT_PRODUCT_COLOUR, "#70b74a")
 	set_trait(TRAIT_PLANT_ICON, "bush2")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)

 /obj/item/seeds/peaseed
 	seed_type = "peas"
@@ -272,7 +274,6 @@
 	set_trait(TRAIT_PRODUCT_COLOUR,"#84BD82")
 	set_trait(TRAIT_PLANT_COLOUR,"#6D9C6B")
 	set_trait(TRAIT_PLANT_ICON,"vine2")
-	set_trait(TRAIT_IDEAL_LIGHT, 6)
 	set_trait(TRAIT_WATER_CONSUMPTION, 6)
 	set_trait(TRAIT_NUTRIENT_CONSUMPTION, 0.15)

@@ -4,7 +4,7 @@ GLOBAL_LIST_EMPTY(plant_seed_sprites)
 /obj/item/seeds
 	name = "packet of seeds"
 	icon = 'icons/obj/seeds.dmi'
-	icon_state = "blank"
+	icon_state = "random"
 	w_class = WEIGHT_CLASS_SMALL

 	storage_slot_sort_by_name = TRUE
@@ -27,6 +27,10 @@ GLOBAL_LIST_EMPTY(plant_seed_sprites)
 	if(!seed)
 		return

+	// This is very hacky, but we clear the icon state here because the ingame packets
+	// are all pure overlays, but we still want seeds to show up in StrongDMM.
+	icon_state = "blank"
+
 	// Update icon.
 	ClearOverlays()
 	var/is_seeds = ((seed.seed_noun in list(SEED_NOUN_SEEDS, SEED_NOUN_PITS, SEED_NOUN_NODES)) ? 1 : 0)
@@ -70,11 +74,29 @@ GLOBAL_LIST_EMPTY(plant_seed_sprites)
 		sm.Blend(so, ICON_OVERLAY)
 		return sm

+/obj/item/seeds/mechanics_hints(mob/user, distance, is_adjacent)
+	. += ..()
+	. += "All plants have preferential heat and light values. They will grow faster if close to these values. Plants also have tolerance values, \
+	and will stop growing and begin to take damage when outside of their tolerances. Use hydroponics trays to get plants within their optimal values!"
+	. += "Plants can be mutated with any mutagen, altering their genes in a random way. Do this with caution as the results may be hazardous!"
+
 /obj/item/seeds/get_examine_text(mob/user, distance, is_adjacent, infix, suffix)
 	. = ..()
+
 	if(seed && !seed.roundstart)
 		. += "It's tagged as variety #[seed.uid]."
-	. += "This has an ideal temperature of <b>[seed.get_trait(TRAIT_IDEAL_HEAT)] kelvin</b> and light level of <b>[seed.get_trait(TRAIT_IDEAL_LIGHT)] lumens.</b>"
+
+	var/lower_heat_preference = seed.get_trait(TRAIT_IDEAL_HEAT) - seed.get_trait(TRAIT_HEAT_PREFERENCE)
+	var/higher_heat_preference = seed.get_trait(TRAIT_IDEAL_HEAT) + seed.get_trait(TRAIT_HEAT_PREFERENCE)
+	var/lower_light_preference = seed.get_trait(TRAIT_IDEAL_LIGHT) - seed.get_trait(TRAIT_LIGHT_PREFERENCE)
+	var/higher_light_preference = seed.get_trait(TRAIT_IDEAL_LIGHT) + seed.get_trait(TRAIT_LIGHT_PREFERENCE)
+
+	var/lower_heat_tolerance = seed.get_trait(TRAIT_IDEAL_HEAT) - seed.get_trait(TRAIT_HEAT_TOLERANCE)
+	var/higher_heat_tolerance = seed.get_trait(TRAIT_IDEAL_HEAT) + seed.get_trait(TRAIT_HEAT_TOLERANCE)
+	var/lower_light_tolerance = seed.get_trait(TRAIT_IDEAL_LIGHT) - seed.get_trait(TRAIT_LIGHT_TOLERANCE)
+	var/higher_light_tolerance = seed.get_trait(TRAIT_IDEAL_LIGHT) + seed.get_trait(TRAIT_LIGHT_TOLERANCE)
+
+	. += SPAN_NOTICE("This grows optimally between <b>[lower_heat_preference] and [higher_heat_preference] kelvin</b>, and between <b>[lower_light_preference] and [higher_light_preference] lumens.</b> It is capable of any growth at all between <b>[lower_heat_tolerance] and [higher_heat_tolerance] kelvin</b>, and between <b>[lower_light_tolerance] and [higher_light_tolerance] lumens.</b>")

 /obj/item/seeds/cutting
 	name = SEED_NOUN_CUTTINGS
@@ -3,8 +3,8 @@
 	desc = "A mechanical basin designed to nurture plants and other aquatic life. It has various useful sensors."
 	icon = 'icons/obj/hydroponics_machines.dmi'
 	icon_state = "hydrotray3"
-	density = 1
-	anchored = 1
+	density = TRUE
+	anchored = TRUE
 	atom_flags = ATOM_FLAG_OPEN_CONTAINER
 	volume = 100

@@ -35,9 +35,9 @@

 	// --- Tray state vars. ---
 	/// Is it dead?
-	var/dead = 0
+	var/dead = FALSE
 	/// Is it ready to harvest?
-	var/harvest = 0
+	var/harvest = FALSE
 	/// Current plant age
 	var/age = 0
 	/// Have we taken a sample?
@@ -70,6 +70,8 @@
 	var/closed_system
 	/// Whether this tray is under stasis, freezing all functions. It won't grow, but it won't die.
 	var/stasis = FALSE
+	/// Is this harvest stunted? If so, the yield of that harvest is halfed.
+	var/stunted = FALSE
 	/// Set this to bypass the cycle time check.
 	var/force_update
 	/// Something to hold reagents during process_reagents()
@@ -168,6 +170,20 @@
 		/singleton/reagent/mutagen = 15
 		)

+/obj/machinery/portable_atmospherics/hydroponics/mechanics_hints(mob/user, distance, is_adjacent)
+	. += ..()
+	if(mechanical)
+		. += "You can lower or raise the lid of a hydroponics tray using <b>Alt + Left Click</b> with an open hand."
+		. += "Improper lighting can be lethal to plants! If your surrounding lighting is inappropriate, you can lower the lid and set a tray light level \
+		using <b>Control + Left Click</b> with an open hand."
+		. += "When the lid is lowered, and if wrenched to a connector, hydroponics trays adopt the temperature of the gas inside the connector. Use this to \
+		change the temperature at which a tray is growing to conform to a plant's heat preferences. Note that if you do this while the connector contains \
+		vacuum, it will cause the temperature of the interior of the tray to reduce drastically in temperature and kill whatever is growing there."
+	else
+		. += "This is a soil plot, and therefore lacks many of the features of hydroponics trays. You will need to ensure that the surrounding atmosphere \
+		lighting of the plot matches the preferences of the plant you are trying to grow, or else it may grow slowly or not at all."
+	. += "If a plant matures while not within within both its heat and light preferences, its yield will be reduced."
+
 /obj/machinery/portable_atmospherics/hydroponics/AltClick()
 	if (istype(usr, /mob/living/carbon/alien/diona))//A diona alt+clicking feeds the plant
 		if(!Adjacent(usr))
@@ -282,9 +298,10 @@

 /// Call this to kill a plant. Don't modify the dead variable directly.
 /obj/machinery/portable_atmospherics/hydroponics/proc/die()
-	dead = 1
+	dead = TRUE
 	mutation_level = 0
-	harvest = 0
+	stunted = FALSE
+	harvest = FALSE
 	weedlevel += 1 * HYDRO_SPEED_MULTIPLIER
 	pestlevel = 0
 	if(prob(min(25,max(1,seed.get_trait(TRAIT_POTENCY/2)))))
@@ -353,14 +370,15 @@
 		return

 	if(user)
-		seed.harvest(user,yield_mod)
+		seed.harvest(user,yield_mod,stunted_status = stunted)
 	else
-		seed.harvest(get_turf(src),yield_mod)
+		seed.harvest(get_turf(src),yield_mod, stunted_status = stunted)
 	// Reset values.
 	if(seed.get_trait(TRAIT_SPOROUS))
 		seed.create_spores(get_turf(src))
 		visible_message(SPAN_DANGER("\The [src] releases its spores!"))
-	harvest = 0
+	harvest = FALSE
+	stunted = FALSE
 	lastproduce = age

 	if(!seed.get_trait(TRAIT_HARVEST_REPEAT))
@@ -384,7 +402,7 @@
 		return

 	seed = null
-	dead = 0
+	dead = FALSE
 	sampled = 0
 	age = 0
 	yield_mod = 0
@@ -402,11 +420,12 @@
 	seed = SSplants.seeds[pick(list("reishi","nettles","amanita","mushrooms","plumphelmet","towercap","harebells","weeds"))]
 	if(!seed) return //Weed does not exist, someone fucked up.

-	dead = 0
+	dead = FALSE
 	age = 0
 	health = seed.get_trait(TRAIT_ENDURANCE)
 	lastcycle = world.time
-	harvest = 0
+	stunted = FALSE
+	harvest = FALSE
 	weedlevel = 0
 	pestlevel = 0
 	sampled = 0
@@ -462,7 +481,7 @@
 		health =     max(0,min(seed.get_trait(TRAIT_ENDURANCE),health))
 	else
 		health = 0
-		dead = 0
+		dead = FALSE

 	mutation_level = max(0,min(mutation_level,100))
 	nutrilevel =     max(0,min(nutrilevel,10))
@@ -479,12 +498,12 @@
 	else
 		return

-	dead = 0
+	dead = FALSE
 	mutate(1)
 	age = 0
 	health = seed.get_trait(TRAIT_ENDURANCE)
 	lastcycle = world.time
-	harvest = 0
+	harvest = FALSE
 	weedlevel = 0

 	update_icon()
@@ -576,6 +595,7 @@
 				return

 			to_chat(user, "You plant the [S.seed.seed_name] [S.seed.seed_noun].")
+			playsound(src, 'sound/items/pickup/herb.ogg', 50, 1)
 			lastproduce = 0
 			seed = S.seed //Grab the seed datum.
 			dead = 0
@@ -592,7 +612,6 @@
 			to_chat(user, SPAN_DANGER("\The [src] already has seeds in it!"))

 	else if (istype(attacking_item, /obj/item/material/minihoe))  // The minihoe
-
 		if(weedlevel > 0)
 			user.visible_message(SPAN_DANGER("[user] starts uprooting the weeds from \the [src]."),
 									SPAN_DANGER("You begin to remove the weeds from \the [src]."))
@@ -695,74 +714,100 @@
 	else if(dead)
 		remove_dead(user)

-/obj/machinery/portable_atmospherics/hydroponics/feedback_hints(mob/user, distance, is_adjacent)
-	. += ..()
+/obj/machinery/portable_atmospherics/hydroponics/get_examine_text(mob/user, distance, is_adjacent)
+	. = ..()

-	if(!seed)
-		. += "[src] is empty."
-		return
-
-	. += SPAN_NOTICE("[seed.display_name] are growing here.")
+	if(seed)
+		. += SPAN_NOTICE("[seed.display_name] are growing here.")

 	if(!is_adjacent)
 		return

-	. += "The water gauge displays [round(waterlevel,0.1)]/100."
-	. += "The nutrient gauge displays [round(nutrilevel,0.1)]/10."
+	. += "The water gauge displays <b>[round(waterlevel,0.1)]/100</b>."
+	. += "The nutrient gauge displays <b>[round(nutrilevel,0.1)]/10</b>."

 	if(weedlevel >= 5)
 		. += "\The [src] is <span class='danger'>infested with weeds</span>!"
 	if(pestlevel >= 5)
 		. += "\The [src] is <span class='danger'>infested with tiny worms</span>!"

-	if(dead)
-		. += SPAN_DANGER("The plant is dead.")
-	else if(health <= (seed.get_trait(TRAIT_ENDURANCE)/ 2))
-		. += "The plant looks <span class='danger'>unhealthy</span>."
+	// What's the current atmosphere?
+	var/turf/T = loc
+	var/datum/gas_mixture/environment
+	if(closed_system && (connected_port || holding) && mechanical)
+		environment = air_contents
+	if(!environment)
+		if(istype(T))
+			environment = T.return_air()

+	// We're in a crate or nullspace, bail out.
+	if(!environment)
+		return
+
+	// What's the current light level?
+	var/light_available
+	if(closed_system && mechanical)
+		light_available = tray_light
+	else
+		if(TURF_IS_DYNAMICALLY_LIT(T))
+			light_available = T.get_lumcount(0, 3) * 10
+		else
+			light_available = 5
+
+	// If it's a mechanical tray, provide precise information to the user about the plant's conditions.
 	if(mechanical)
-		var/turf/T = loc
-		var/datum/gas_mixture/environment
+		var/heat_status
+		var/light_status

-		if(closed_system && (connected_port || holding))
-			environment = air_contents
-
-		if(!environment)
-			if(istype(T))
-				environment = T.return_air()
-
-		if(!environment) //We're in a crate or nullspace, bail out.
-			return
-
-		var/light_string
-		if(closed_system && mechanical)
-			light_string = "that the internal lights are set to [tray_light] lumens"
-		else
-			var/light_available
-			if(TURF_IS_DYNAMICALLY_LIT(T))
-				light_available = T.get_lumcount(0, 3) * 10
+		if(seed && !dead)
+			if(seed.check_heat_tolerances(environment))
+				heat_status = SPAN_BAD(", placing it outside its heat tolerances, totally preventing growth")
+			else if(seed.check_heat_preferences(environment))
+				heat_status = SPAN_GOOD(", placing it within its heat preferences, accelerating growth")
 			else
-				light_available = 5
+				heat_status = SPAN_NOTICE(", placing it outside its heat preferences, slowing growth and reducing yield")

-			light_string = "a light level of [light_available] lumens"
+			if(seed.check_light_tolerances(light_available))
+				light_status = SPAN_BAD(", placing it outside its light tolerances, totally preventing growth")
+			else if(seed.check_light_preferences(light_available))
+				light_status = SPAN_GOOD(", placing it within its light preferences, accelerating growth")
+			else
+				light_status = SPAN_NOTICE(", placing it outside its light preferences, slowing growth and reducing yield")

-		. += "The tray's sensor suite is reporting [light_string] and a temperature of [environment.temperature]K."
+		. += "The tray thermometer displays a temperature of <b>[environment.temperature]K</b>[heat_status]."
+		. += "The tray light meter displays a light level of <b>[light_available] lumens</b>[light_status]."

-		var/stasis_string
+		// Are we under stasis?
 		if(stasis)
-			stasis_string = "Stasis is enabled, freezing metabolic functions."
+			. += SPAN_NOTICE("Stasis is enabled, freezing metabolic functions.")
 		else
-			stasis_string = "Stasis is disabled."
-		. += SPAN_NOTICE(stasis_string)
+			. += SPAN_NOTICE("Stasis is disabled.")
+
+	// Provide a vaguer description of what's going on if it's a soil plot.
+	if(!mechanical && seed && !dead)
+		if(seed.check_heat_tolerances(environment) || seed.check_light_tolerances(light_available))
+			. += SPAN_BAD("This plot is unable to grow whatsoever under its current conditions!")
+		else if(seed.check_heat_preferences(environment) && seed.check_light_preferences(light_available))
+			. += SPAN_GOOD("This plot is thriving under its current conditions!")
+		else
+			. += SPAN_NOTICE("This plot is struggling to grow under its current conditions.")
+
+	if(seed)
+		if(dead)
+			. += SPAN_DANGER("The plant is dead.")
+		else if(health <= (seed.get_trait(TRAIT_ENDURANCE)/ 2))
+			. += SPAN_BAD("The plant looks unhealthy.")
+		if(stunted)
+			. += SPAN_BAD("This harvest is stunted due to improper growing conditions, reducing yield.")
+		else if(harvest)
+			. += SPAN_GOOD("This is ready to harvest!")

 /// Opens and closes the lid.
 /obj/machinery/portable_atmospherics/hydroponics/proc/close_lid(var/mob/living/user)
 	if(closed_system)
 		stasis = FALSE
-		density = FALSE
 		update_use_power(POWER_USE_IDLE)
-	else
-		density = TRUE
+
 	closed_system = !closed_system
 	playsound(src, 'sound/items/pickup/device.ogg', 50, TRUE)
 	to_chat(user, "You [closed_system ? "close" : "open"] the tray's lid.")
@@ -83,12 +83,16 @@

 	// This carries the product of the handle_enviroment proc, so we can use it for multiple things.
 	var/environmental_damage
+	// This determines the probability of growth, for use with the get_probability_of_growth proc.
+	var/probability_of_growth

-	// Seed datum handles gasses, light and pressure relevant to whether the plant should be damaged.
+	// Seed datum handles gasses, light and pressure relevant to whether the plant should be damaged, and what the probability of growth should be.
 	if(mechanical && closed_system)
 		environmental_damage = seed.handle_environment(T,environment,tray_light)
+		probability_of_growth = seed.get_probability_of_growth(T,environment,tray_light)
 	else
 		environmental_damage = seed.handle_environment(T,environment)
+		probability_of_growth = seed.get_probability_of_growth(T,environment)

 	// Reduce health by however much handle_environent returned.
 	health -= environmental_damage
@@ -97,35 +101,19 @@
 	if (closed_system && connected_port)
 		update_connected_network()

-	// We only let the plant grow if they're within their light, heat, and pressure tolerances - i.e. they've taken no damage in this process.
-	// We calculate this off the environmental_damage variable. If it's greater than 0, the plant has taken damage and shouldn't grow.
-	if(environmental_damage == 0)
-		// By standard, the probability of growth is only 15%. This rises if growing conditions are within their preferences.
-		// This is intended to motivate the use of atmospheric equipment to more viably grow plants with irregular preferences.
-		// You *can* grow plants outside of their preferences without them dying so long as it's within their tolerance, but it'll be pretty slow.
-		var/probability_of_growth = 15
-
-		// Are we within the preference zone for temperature? If so, add 15% to the chance of growth.
-		if(abs(environment.temperature - seed.get_trait(TRAIT_IDEAL_HEAT)) < seed.get_trait(TRAIT_HEAT_PREFERENCE))
-			probability_of_growth += 15
-
-		// The light value we'll be using here.
-		var/actual_light
-
-		// What kind of lighting are we under? If the lid isn't on and the turf isn't dynamically lit, default to 5 lumens.
-		if(closed_system && mechanical)
-			actual_light = tray_light
-		else if(TURF_IS_DYNAMICALLY_LIT(T))
-			actual_light = T.get_lumcount(0, 3) * 10
+	// Handle light requirements for upcoming logic.
+	var/light_supplied
+	if(!closed_system)
+		if (TURF_IS_DYNAMICALLY_LIT(T))
+			light_supplied = T.get_lumcount(0, 3) * 10
 		else
-			actual_light = 5
+			light_supplied = 5
+	else
+		light_supplied = tray_light

-		// If we're within the preference zone for light, add another 5% to the chance for growth.
-		if(abs(actual_light - seed.get_trait(TRAIT_IDEAL_LIGHT)) < seed.get_trait(TRAIT_LIGHT_PREFERENCE))
-			probability_of_growth += 5
-
-		// Roll the dice on advancing plant age, per a probability defined by the previous two checks. At minimum, 15% - at maximum, 35%.
-		// TODO: Move to seed datum?
+	// We only let the plant grow if they're within their light and heat tolerances.
+	if(!seed.check_light_tolerances(light_supplied) && !seed.check_heat_tolerances(environment))
+		// Roll the dice on advancing plant age.
 		if(prob(probability_of_growth)) age += 1 * HYDRO_SPEED_MULTIPLIER

 	// Toxin levels beyond the plant's tolerance cause damage, but
@@ -159,7 +147,12 @@

 	// If enough time (in cycles, not ticks) has passed since the plant was harvested, we're ready to harvest again.
 	if((age > seed.get_trait(TRAIT_MATURATION)) && ((age - lastproduce) > seed.get_trait(TRAIT_PRODUCTION)) && (!harvest && !dead))
-		harvest = 1
+		// If the plant matures while not at either its light or heat preference, it becomes stunted, reducing its yield on harvest.
+		// Better grow your plants better next time.
+		if(!seed.check_light_preferences(light_supplied) || !seed.check_heat_preferences(environment))
+			stunted = TRUE
+
+		harvest = TRUE
 		lastproduce = age
 		if(seed.get_trait(TRAIT_SPOROUS) && !closed_system)
 			seed.create_spores(get_turf(src))
@@ -2,9 +2,9 @@
 	name = "soil"
 	desc = "A mound of earth. You could plant some seeds here."
 	icon_state = "soil"
-	density = 0
+	density = FALSE
 	use_power = POWER_USE_OFF
-	mechanical = 0
+	mechanical = FALSE
 	tray_light = 0
 	/// Water level begins at zero.
 	waterlevel = 0
@@ -69,11 +69,14 @@
 		if(stasis)
 			AddOverlays("stasis")

+	// Apply density and opacity if a large plant is growing in the plot. Exempt mechanical trays from density alterations, since they're always dense.
 	if(seed && seed.get_trait(TRAIT_LARGE))
-		density = TRUE
+		if(!mechanical)
+			density = TRUE
 		opacity = TRUE
 	else
-		density = FALSE
+		if(!mechanical)
+			density = FALSE
 		opacity = FALSE

 	// Update bioluminescence.