ADD: New weapon - Mining Grenade Launcher (#24093)

* ADD: New weapon - Mining Grenade Launcher

* Update code/game/mecha/equipment/weapons/weapons.dm

Co-authored-by: Luc <89928798+lewcc@users.noreply.github.com>

* Update code/game/mecha/equipment/weapons/weapons.dm

Co-authored-by: Luc <89928798+lewcc@users.noreply.github.com>

---------

Co-authored-by: Luc <89928798+lewcc@users.noreply.github.com>

code/modules/mod/modules/modules_supply.dm

@@ -516,6 +516,10 @@
 	var/fauna_boost = 4
 	/// Image overlaid on explosion.
 	var/static/image/explosion_image
+	/// Radius of explosion
+	var/power = 1
+	/// Drill power of grenade
+	var/drill_power = 2
 
 /obj/structure/mining_bomb/Initialize(mapload, atom/movable/firer)
 	. = ..()
@@ -534,16 +538,24 @@
 /obj/structure/mining_bomb/proc/boom(atom/movable/firer)
 	visible_message("<span class='danger'>[src] explodes!</span>")
 	playsound(src, 'sound/magic/magic_missile.ogg', 200, vary = TRUE)
-	for(var/turf/T in circleviewturfs(src, 2))
+	for(var/turf/T in circleviewturfs(src, drill_power))
 		if(ismineralturf(T))
 			var/turf/simulated/mineral/mineral_turf = T
 			mineral_turf.gets_drilled(firer)
-	for(var/mob/living/mob in range(1, src))
+	for(var/mob/living/mob in range(power, src))
 		mob.apply_damage(damage * (ishostile(mob) ? fauna_boost : 1), BRUTE, spread_damage = TRUE)
 		if(!ishostile(mob) || !firer)
 			continue
 		var/mob/living/simple_animal/hostile/hostile_mob = mob
 		hostile_mob.GiveTarget(firer)
-	for(var/obj/object in range(1, src))
+	for(var/obj/object in range(power, src))
 		object.take_damage(damage, BRUTE, BOMB)
 	qdel(src)
+
+/obj/item/projectile/bullet/reusable/mining_bomb/mecha
+	ammo_type = /obj/structure/mining_bomb/mecha
+
+/obj/structure/mining_bomb/mecha
+	damage = 15
+	power = 2
+	drill_power = 3