Removed empty top rows from TD base structure footprints

Removed top row of buildings where it only consisted of _ cells and adjusted the art offset instead. This fixes the issue that CenterPosition was located in the middle between the occupied and passable cell for defenses like Obelisks, makes their placement a bit more intuitive and makes setting up proper HitShapes easier.

mods/cnc/sequences/structures.yaml

@@ -109,6 +109,8 @@ silo:
 		AddExtension: False
 
 hand:
+	Defaults:
+		Offset: 0,-8
 	idle:
 	damaged-idle:
 		Start: 1
@@ -121,8 +123,10 @@ hand:
 	bib: bib3
 		UseTilesetExtension: true
 		Length: *
+		Offset: 0,0
 	icon: handicnh.tem
 		AddExtension: False
+		Offset: 0,0
 
 pyle:
 	idle:
@@ -145,9 +149,13 @@ pyle:
 		AddExtension: False
 
 weap:
+	Defaults:
+		Offset: 0,-12
 	idle:
+		ZOffset: -511
 	damaged-idle:
 		Start: 1
+		ZOffset: -511
 	dead:
 		Start: 2
 		Tick: 800
@@ -164,8 +172,10 @@ weap:
 	bib: bib2
 		UseTilesetExtension: true
 		Length: *
+		Offset: 0,0
 	icon: weapicnh.tem
 		AddExtension: False
+		Offset: 0,0
 
 afld:
 	idle:
@@ -322,6 +332,8 @@ eye:
 		AddExtension: False
 
 tmpl:
+	Defaults:
+		Offset: 0,-12
 	idle:
 	damaged-idle:
 		Start: 5
@@ -339,10 +351,14 @@ tmpl:
 	bib: bib2
 		UseTilesetExtension: true
 		Length: *
+		Offset: 0,0
 	icon: tmplicnh.tem
 		AddExtension: False
+		Offset: 0,0
 
 obli:
+	Defaults:
+		Offset: 0,-12
 	idle:
 	damaged-idle:
 		Start: 4
@@ -369,6 +385,7 @@ obli:
 		Offset: -1,-3
 	icon: obliicnh.tem
 		AddExtension: False
+		Offset: 0,0
 
 brik:
 	idle:
@@ -514,22 +531,19 @@ gtwr:
 		AddExtension: False
 
 atwr:
+	Defaults:
+		Offset: 0,-13
 	idle:
-		Offset: 0,-1
 	damaged-idle:
 		Start: 1
-		Offset: 0,-1
 	dead:
 		Start: 2
-		Offset: 0,-1
 		Tick: 800
 	make: atwrmake
 		Length: *
 		Tick: 80
-		Offset: 0,-1
 	muzzle: gunfire2
 		Length: *
-		Offset: 0,-1
 	bib: mbGTWR
 		UseTilesetExtension: true
 		TilesetOverrides:
@@ -540,6 +554,7 @@ atwr:
 		Offset: -3,0
 	icon: atwricnh.tem
 		AddExtension: False
+		Offset: 0,0
 
 hosp:
 	idle: