Add a moving platform

No player velocity handling etc yet, just a moving platform

MovingPlatform.gd

@@ -0,0 +1,38 @@
+extends KinematicBody
+class_name MovingPlatform
+
+
+var time_passed := 0.0
+var distance_to_pivot := 0.0
+
+export(float) var move_speed = 2.0
+export(NodePath) var solar_system
+
+
+func _process(delta):
+	# Move the platform using the pivot and sin/cos.
+	# Theoretically we could just use the gravity from the solar system and actually orbit, but
+	#  that seems like it'd get unstable very easily.
+	
+	if distance_to_pivot == 0.0:
+		distance_to_pivot = get_parent().global_transform.origin.distance_to(global_transform.origin)
+	
+	time_passed += delta
+	var speed_multiplier = (1.0 / distance_to_pivot) * move_speed
+	
+	translation = Vector3(0.0,
+			cos(time_passed * speed_multiplier) * distance_to_pivot,
+			sin(time_passed * speed_multiplier) * distance_to_pivot
+	)
+	
+	# Rotate according to gravity
+	var gravity_acceleration = get_node(solar_system).get_gravitation_acceleration(global_transform.origin)
+	
+	# Rotate down vector to face center of gravity
+	var down = gravity_acceleration
+	var local_down = transform.basis * Vector3.DOWN
+	var angle = local_down.angle_to(down)
+	var axis = local_down.cross(down).normalized()
+	
+	if axis != Vector3.ZERO: # Happens if we're perfectly aligned already (local_down and down are equal)
+		rotate(axis, angle)

PlanetMaterial.tres

@@ -1,6 +1,6 @@
 [gd_resource type="ShaderMaterial" load_steps=2 format=2]
 
-[sub_resource type="Shader" id=2]
+[sub_resource type="Shader" id=1]
 code = "shader_type spatial;
 
 
@@ -51,7 +51,7 @@ void fragment() {
 
 [resource]
 resource_local_to_scene = true
-shader = SubResource( 2 )
+shader = SubResource( 1 )
 shader_param/scale = Vector2( 50, 50 )
 shader_param/seamless = false
 shader_param/color_scale = Vector3( 0.8, 0.2, 0.4 )

Player.gd

@@ -84,7 +84,5 @@ func _physics_process(delta):
 	var angle = local_down.angle_to(down)
 	var axis = local_down.cross(down).normalized()
 	
-	print(velocity.y)
-	
 	if axis != Vector3.ZERO: # Happens if we're perfectly aligned already (local_down and down are equal)
 		rotate(axis, angle)

project.godot

@@ -9,12 +9,18 @@
 config_version=4
 
 _global_script_classes=[ {
+"base": "KinematicBody",
+"class": "MovingPlatform",
+"language": "GDScript",
+"path": "res://MovingPlatform.gd"
+}, {
 "base": "Spatial",
 "class": "SolarSystem",
 "language": "GDScript",
 "path": "res://Planets.gd"
 } ]
 _global_script_class_icons={
+"MovingPlatform": "",
 "SolarSystem": ""
 }