July Update Bugfixes: Better Than Alberyk Edition. (#5031)

Fixes #5030
Fixes #5028
Fixes #5040
Fixes american flags not showing up
Fixes gauss rifles being overpowered

I may add more bugfixes with this PR if anything juicy comes up.

code/modules/mining/mine_turfs.dm

@@ -518,7 +518,7 @@ var/list/mineral_can_smooth_with = list(
 	user.setClickCooldown(DEFAULT_ATTACK_COOLDOWN)
 
 	if(ishuman(user))
-		var/mob/living/carbon/human/H
+		var/mob/living/carbon/human/H = user
 		var/turf/destination = GetAbove(H)
 
 		if(destination)

code/modules/mob/living/carbon/human/human_powers.dm

@@ -688,9 +688,6 @@
 		if (istype(T) && (T:l_ear || T:r_ear) && istype((T:l_ear || T:r_ear), /obj/item/clothing/ears/earmuffs))
 			continue
 
-		if (!vampire_can_affect_target(T, 0))
-			continue
-
 		to_chat(T, "<span class='danger'>You hear an ear piercing shriek and feel your senses go dull!</span>")
 		T.Weaken(5)
 		T.ear_deaf = 20

code/modules/multiz/movement.dm

@@ -145,8 +145,14 @@
 		return
 
 	if(destination.density)
+		to_chat(src, "<span class='notice'>There is something obstructing your destination!</span>")
 		return
 
+	for(var/obj/O in destination)
+		if(O.density)
+			to_chat(src, "<span class='notice'>There is something obstructing your destination!</span>")
+			return
+
 	visible_message("<span class='notice'>The [src] begins to climb [(direction == UP) ? "upwards" : "downwards"].</span>",
 		"<span class='notice'>You begin to climb [(direction == UP) ? "upwards" : "downwards"].</span>")
 	var/climb_chance = 50