Makes drone castes be able to destroy special resin buildings faster; enables destruction from roundstart

[Vicacrov]

About the pull request

1. All xenomorph hives except for ferals now start with special resin structure destruction enabled for leaders AND builders (all drone castes), instead of leaders only.
2. Builders can now destroy every special resin structure with a maximum of 5 hits.

Explain why it's good for the game

1. All xenomorph hives except for ferals now start with special resin structure destruction enabled for leaders AND builders (all drone castes), instead of leaders only.

Why: This is an old, leftover restriction from back when people actively griefed destroying stuff and the hive had no hive-wide announcements for it. Now it just devolved into "queen plz allow special deconstruction" every single round drone castes try to move things around. It is tiresome for both builders and the queen to always enable this.

2. Builders can now destroy every special resin structure with a maximum of 5 hits.

Why: Most often drones and hivelords are sicced on destroying backline clusters/recovery nodes, since xenos have a limited amount of special structures they can build. Here are the number of hits you needed before to destroy them:

name	health	# of drone hits	# of carrier hits	# of burrower hits	# hivelord hits
hive cluster	1200	16	15	15	16
recovery node	400	6	5	5	6
egg morpher	300	4	4	4	4

It is soul-killing to hit things 15-16 times for it to get destroyed. Factor in the extra hits when one has to destroy a cluster and recovery nodes and you can quickly see why this is not fun.

This part of the code:

		var/damage_to_structure = M.melee_damage_upper + XENO_DAMAGE_TIER_7
		// Builders can destroy beefy things in maximum 5 hits
		if(isxeno_builder(M))
			health -= max(initial(health) * 0.2, damage_to_structure)
		else
			health -= damage_to_structure

ensures that if your melee damage is higher than the 1/5th of the special structure's max health, you will deal your melee damage instead. This way, you can still destroy egg morphers in only 4 hits, as opposed to 5.

Testing Photographs and Procedure

1. Spawn in a cluster, recovery node, and an egg morpher
2. Slash them and observe the health change

Changelog

🆑
tweak: Xenomorph special structure deconstruction is now enabled for leaders and builders from roundstart instead of leaders only, except for feral hives.
qol: Drone castes can now destroy clusters and recovery nodes with a maximum of 5 hits (instead of 15-16 and 6, respectively).
/:cl:

[Contrabang]

I wonder, should this check if the xeno is of the same hive as the resin? or maybe an ally?

[Vicacrov]

I could add it, but afaik the current mechanics are the same - xenos get a +50 damage against all resin structures, regardless of hive

[Birdtalon]

This is fine imo.

[Birdtalon]

Sure looks good.