fix movement through the map is easier

debug/dust2_level_builder.gd

@@ -77,6 +77,28 @@ func _build_dust2_layout() -> void:
 		root_csg.add_child(hole)
 		return hole
 		
+	# Helper function to carve a precise slope (no lips or hard stops)
+	var carve_ramp = func(start_pos: Vector3, width: float, length: float, height: float, is_x_axis: bool, reverse: bool):
+		var box = CSGBox3D.new()
+		box.operation = CSGShape3D.OPERATION_SUBTRACTION
+		
+		var slope = atan2(height, length)
+		var dir = 1.0 if reverse else -1.0
+		
+		if not is_x_axis: # Ramp goes along Z
+			box.size = Vector3(width, 50, 50)
+			box.rotation.x = slope * dir
+			var mid_point = start_pos + Vector3(0, height / 2.0, (length / 2.0) * dir)
+			box.position = mid_point + (Vector3.UP.rotated(Vector3.RIGHT, box.rotation.x) * 25.0)
+		else: # Ramp goes along X
+			box.size = Vector3(50, 50, width)
+			box.rotation.z = -slope * dir
+			var mid_point = start_pos + Vector3((length / 2.0) * dir, height / 2.0, 0)
+			box.position = mid_point + (Vector3.UP.rotated(Vector3.FORWARD, box.rotation.z) * 25.0)
+			
+		root_csg.add_child(box)
+		return box
+
 	# ---------------------------------------------------------
 	# LAYOUT (with generous overlaps to prevent getting stuck)
 	# ---------------------------------------------------------
@@ -99,8 +121,10 @@ func _build_dust2_layout() -> void:
 	# ---------------------------------------------------------
 	# Lower B Tunnels (Connects from Mid at X=0 to West)
 	carve_tunnel.call(Vector3(-18, 0, 30), Vector3(40, 6, 8))
-	# Spiral stairs up to Upper B Tunnels
-	carve_tunnel.call(Vector3(-34, 0, 30), Vector3(12, 10, 12))
+	
+	# Spiral stairs up to Upper B Tunnels (Using a ramp instead of stairs for smoothness)
+	carve_ramp.call(Vector3(-34, 0, 34), 8.0, 15.0, 4.0, false, false) # Ramp from Lower to Upper B
+	
 	# Upper B Tunnels
 	carve_tunnel.call(Vector3(-34, 4, 15), Vector3(8, 6, 30))
 	
@@ -112,13 +136,7 @@ func _build_dust2_layout() -> void:
 	carve_tunnel.call(Vector3(-15, 4, -18), Vector3(20, 4, 4)) # Window
 	
 	# CT Spawn Ramp to B Site
-	carve_open.call(Vector3(-15, 0, -15), Vector3(12, 8, 12))
-	var ramp_carve = CSGBox3D.new()
-	ramp_carve.operation = CSGShape3D.OPERATION_SUBTRACTION
-	ramp_carve.size = Vector3(8, 10, 15)
-	ramp_carve.rotation_degrees.x = -25
-	ramp_carve.position = Vector3(-15, 2, -15)
-	root_csg.add_child(ramp_carve)
+	carve_ramp.call(Vector3(-15, 0, -15), 10.0, 15.0, 4.0, true, false) # Ramp up from CT to B Door
 	
 	# ---------------------------------------------------------
 	# A SIDE
@@ -141,32 +159,17 @@ func _build_dust2_layout() -> void:
 	carve_open.call(Vector3(30, 4, -15), Vector3(30, 8, 30))
 	
 	# Ramp up to A site from Long
-	var a_ramp = CSGBox3D.new()
-	a_ramp.operation = CSGShape3D.OPERATION_SUBTRACTION
-	a_ramp.size = Vector3(15, 10, 15)
-	a_ramp.rotation_degrees.x = 25
-	a_ramp.position = Vector3(30, 2, -5)
-	root_csg.add_child(a_ramp)
+	carve_ramp.call(Vector3(30, 0, -5), 15.0, 15.0, 4.0, false, false)
 	
 	# Ramp down from A Site to CT Spawn
-	var ct_ramp = CSGBox3D.new()
-	ct_ramp.operation = CSGShape3D.OPERATION_SUBTRACTION
-	ct_ramp.size = Vector3(15, 10, 15)
-	ct_ramp.rotation_degrees.z = 25
-	ct_ramp.position = Vector3(15, 2, -25)
-	root_csg.add_child(ct_ramp)
+	carve_ramp.call(Vector3(15, 0, -25), 15.0, 15.0, 4.0, true, true)
 	
 	# Catwalk / A Short
 	carve_open.call(Vector3(15, 4, 5), Vector3(20, 8, 8))
 	carve_open.call(Vector3(20, 4, -5), Vector3(8, 8, 15))
 	
-	# Stairs from Mid to Catwalk
-	var mid_stairs = CSGBox3D.new()
-	mid_stairs.operation = CSGShape3D.OPERATION_SUBTRACTION
-	mid_stairs.size = Vector3(8, 8, 15)
-	mid_stairs.rotation_degrees.x = 35
-	mid_stairs.position = Vector3(8, 2, 5)
-	root_csg.add_child(mid_stairs)
+	# Stairs from Mid to Catwalk (Smooth ramp)
+	carve_ramp.call(Vector3(5, 0, 5), 8.0, 12.0, 4.0, true, true)
 	
 	# Floor
 	var floor = CSGBox3D.new()