[MIRROR] nerfs the HP of bushes (#29291)

* nerfs the HP of bushes (#85682)

## About The Pull Request
- Lowered the HP of the "flora" type from 150 (same as reinforced
window) to 100
- Trees are still 150 HP
- Gave flora an x4 modifier to burn damage (takes 4 times the burn
damage)
## Why It's Good For The Game
Every time you do a project as an engineer on a map with bushes, each
bush takes 10 welding tool hits to destroy, overall bushes have way too
much HP and shouldn't be this difficult to destroy.
## Changelog
🆑 grungussuss
balance: bushes and other flora have had their HP reduced from 150 to
100. Trees still have 150 HP
balance: flora now has an X4 modifier to damage from burn sources
/🆑

* nerfs the HP of bushes

---------

Co-authored-by: grungussuss <96586172+Sadboysuss@users.noreply.github.com>

code/game/objects/structures/flora.dm

@@ -2,7 +2,7 @@
 	name = "flora"
 	desc = "Some sort of plant."
 	resistance_flags = FLAMMABLE
-	max_integrity = 150
+	max_integrity = 100
 	anchored = TRUE
 	drag_slowdown = 1.3
 
@@ -113,6 +113,12 @@
 	if(harvest(user))
 		after_harvest(user)
 
+/obj/structure/flora/run_atom_armor(damage_amount, damage_type, damage_flag = 0, attack_dir)
+	if(damage_flag == MELEE)
+		if(damage_type == BURN)
+			damage_amount *= 4
+	return ..()
+
 /obj/structure/flora/play_attack_sound(damage_amount, damage_type = BRUTE, damage_flag = 0)
 	var/use_default_sound = TRUE //Because I don't wanna do unnecessary bitflag checks in a single if statement, while also allowing for multiple sounds to be played
 	if(flora_flags & FLORA_HERBAL)
@@ -278,6 +284,7 @@
 	name = "tree"
 	desc = "A large tree."
 	density = TRUE
+	max_integrity = 150
 	pixel_x = -16
 	layer = FLY_LAYER
 	plane = ABOVE_GAME_PLANE