between() -> clamp() & swaps args 1 and 2 in uses

code/modules/shieldgen/directional_shield.dm

@@ -140,7 +140,7 @@
 		S.relocate()
 
 /obj/item/shield_projector/proc/adjust_health(amount)
-	shield_health = between(0, shield_health + amount, max_shield_health)
+	shield_health = clamp(shield_health + amount, 0, max_shield_health)
 	if(amount < 0)
 		if(shield_health <= 0)
 			destroy_shields()

code/modules/shieldgen/energy_field.dm

@@ -90,7 +90,7 @@
 
 /obj/effect/energy_field/proc/adjust_strength(amount, impact = 1)
 	var/old_density = density
-	strength = between(0, strength + amount, max_strength)
+	strength = clamp(strength + amount, 0, max_strength)
 
 	//maptext = "[round(strength, 0.1)]/[max_strength]"
 
@@ -139,7 +139,7 @@
 
 // Small visual effect, makes the shield tiles brighten up by becoming more opaque for a moment, and spreads to nearby shields.
 /obj/effect/energy_field/proc/impact_effect(var/i, var/list/affected_shields = list())
-	i = between(1, i, 10)
+	i = clamp(1, i, 10)
 	alpha = 200
 	animate(src, alpha = initial(alpha), time = 1 SECOND)
 	affected_shields |= src
@@ -152,4 +152,3 @@
 					for(var/obj/effect/energy_field/F in T)
 						if(!(F in affected_shields))
 							F.impact_effect(i, affected_shields) // Spread the effect to them.
-

code/modules/shieldgen/sheldwallgen.dm

@@ -66,7 +66,7 @@
 		power = 0
 		return 0
 
-	var/shieldload = between(500, max_stored_power - storedpower, power_draw)	//what we try to draw
+	var/shieldload = clamp(max_stored_power - storedpower, 500, power_draw)	//what we try to draw
 	shieldload = PN.draw_power(shieldload) //what we actually get
 	storedpower += shieldload
 

code/modules/shieldgen/shield_capacitor.dm

@@ -105,7 +105,7 @@
 		PN = C.powernet
 
 	if (PN)
-		var/power_draw = between(0, max_charge - stored_charge, charge_rate) //what we are trying to draw
+		var/power_draw = clamp(max_charge - stored_charge, 0, charge_rate) //what we are trying to draw
 		power_draw = PN.draw_power(power_draw) //what we actually get
 		stored_charge += power_draw
 
@@ -145,4 +145,4 @@
 		return
 
 	src.set_dir(turn(src.dir, 270))
-	return
+	return