Add description to physics prop "impact damage type"

fgd/bases/BasePropPhysics.fgd

@@ -28,14 +28,11 @@
 	minhealthdmg(integer) : "Min Damage to Hurt" : 0 : "The prop will ignore any damage events if the damage is less than this amount."
 	shadowcastdist(integer) : "Shadow Cast Distance" : 0 : "Use this to override how far this object casts shadows. 0 = default distance."
 	physdamagescale(float) : "Physics Impact Damage Scale" : 0.1 : "Scales damage energy when this object is hit by a physics object. NOTE: 0 means this feature is disabled for backwards compatibility.\nSet to 1.0 for materials as strong as flesh, smaller numbers indicate stronger materials."
-	damagetype(choices) : "Impact damage type" : "0" =
-		[
-		0: "Blunt"
-		1: "Sharp"
-		]
+
 	damagetype[engine](int): "Impact damage type": 0
+	#snippet keyvalue ImpactDamageType
 
-	nodamageforces(boolean) : "Damaging it Doesn't Push It" : 0 : "Used to determine whether or not damage should cause the brush to move."
+	nodamageforces(boolean) : "Damaging it Doesn't Push It" : 0 : "Used to determine whether or not damage should cause the prop to move."
 	inertiascale[complete](float) : "Scale Factor For Inertia" : 1.0 : "Scales the angular mass of an object. Used to hack angular damage and collision response."
 	massscale(float) : "Mass Scale" : 0 : "A scale multiplier for the object's mass."
 	overridescript(string) : "Override Parameters" : : "A list of physics key/value pairs that are usually in a physics prop .qc file. Format is 'key,value,key,value,etc'."

fgd/brush/func/func_physbox.fgd

@@ -19,12 +19,8 @@
 		16777216: "Radius pickup (easier to pickup)" : 0 [MBase]
 		]
 
-	damagetype[engine](integer) : "Impact Damage Type" : 0
-	damagetype(choices) : "Impact Damage Type" : 0 =
-		[
-		0: "Blunt"
-		1: "Sharp"
-		]
+	damagetype[engine](int): "Impact damage type": 0
+	#snippet keyvalue ImpactDamageType
 
 	massscale(float) : "Mass Scale" : 0 : "A scale multiplier for the object's mass."
 	ha_override_mass[srctools](float) : "[HA] Mass Override" : : "If set, the postcompiler will modify the brush data to directly set it to this mass value."

fgd/snippets/physics.fgd

@@ -0,0 +1,7 @@
+
+@snippet Keyvalue ImpactDamageType = damagetype(choices) : "Impact Damage Type" : 0 : "If sharp, this will damage other objects/players " + 
+	"with SLASH damage when rotating more than 360 degrees/second." =
+	[
+	0: "Blunt"
+	1: "Sharp"
+	]