initial commit

.gitignore

@@ -0,0 +1,2 @@
+godot/.godot
+rust/target

godot/base.tscn

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+
+[ext_resource type="Script" path="res://planet_3d.gd" id="1_ah6ru"]
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+
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+
+[sub_resource type="SphereMesh" id="SphereMesh_wit1y"]
+material = SubResource("StandardMaterial3D_w5x05")
+
+[sub_resource type="SphereShape3D" id="SphereShape3D_chv0q"]
+
+[node name="Base" type="Node3D"]
+
+[node name="RigidBody3D" type="RigidBody3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -1.36111, 0, -2.81404)
+visible = false
+gravity_scale = 0.0
+
+[node name="MeshInstance3D" type="MeshInstance3D" parent="RigidBody3D"]
+mesh = SubResource("SphereMesh_wit1y")
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="RigidBody3D"]
+shape = SubResource("SphereShape3D_chv0q")
+
+[node name="Planet3D" type="Planet3D" parent="."]
+rotational_speed = 100.0
+mass = 900000.0
+gravity_scale = 0.0
+linear_damp_mode = 1
+angular_damp_mode = 1
+script = ExtResource("1_ah6ru")
+
+[node name="MeshInstance3D" type="MeshInstance3D" parent="Planet3D"]
+mesh = SubResource("SphereMesh_wit1y")
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="Planet3D"]
+shape = SubResource("SphereShape3D_chv0q")
+
+[node name="Camera3D" type="Camera3D" parent="."]
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godot/icon.svg

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godot/icon.svg.import

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+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://0dupmuupwgch"
+path="res://.godot/imported/icon.svg-218a8f2b3041327d8a5756f3a245f83b.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
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+dest_files=["res://.godot/imported/icon.svg-218a8f2b3041327d8a5756f3a245f83b.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
+svg/scale=1.0
+editor/scale_with_editor_scale=false
+editor/convert_colors_with_editor_theme=false

godot/planet_3d.gd

@@ -0,0 +1,12 @@
+extends Planet3D
+
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	sync()
+	pass # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta: float) -> void:
+	pass

godot/planets.gdextension

@@ -0,0 +1,8 @@
+[configuration]
+entry_symbol = "gdext_rust_init"
+compatibility_minimum = 4.1
+reloadable = true
+
+[libraries]
+linux.debug.x86_64 =     "res://../rust/target/debug/librust.so"
+linux.release.x86_64 =   "res://../rust/target/release/librust.so"

godot/project.godot

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+; Engine configuration file.
+; It's best edited using the editor UI and not directly,
+; since the parameters that go here are not all obvious.
+;
+; Format:
+;   [section] ; section goes between []
+;   param=value ; assign values to parameters
+
+config_version=5
+
+[application]
+
+config/name="New Game Project"
+run/main_scene="res://base.tscn"
+config/features=PackedStringArray("4.3", "Forward Plus")
+config/icon="res://icon.svg"

rust/Cargo.lock

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rust/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "rust"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib"]  # Compile this crate to a dynamic C library.
+
+[dependencies]
+godot = "0.2.2"

rust/src/lib.rs

@@ -0,0 +1,40 @@
+use godot::classes::IRigidBody3D;
+use godot::classes::RigidBody3D;
+use godot::prelude::*;
+
+#[derive(GodotClass)]
+#[class(base=RigidBody3D)]
+struct Planet3D {
+    #[export]
+    name: GString,
+    #[export]
+    rotational_speed: f32,
+    base: Base<RigidBody3D>,
+}
+
+#[godot_api]
+impl IRigidBody3D for Planet3D {
+    fn init(base: Base<RigidBody3D>) -> Self {
+        Self {
+            name: GString::new(),
+            rotational_speed: 1.0,
+            base,
+        }
+    }
+}
+
+#[godot_api]
+impl Planet3D {
+    #[func]
+    fn sync(&mut self) {
+        godot_print!("H..");
+        let speed = self.rotational_speed;
+        self.base_mut()
+            .set_angular_velocity(Vector3::new(0.0, 0.5 * speed, 0.0));
+    }
+}
+
+struct MyExtension;
+
+#[gdextension]
+unsafe impl ExtensionLibrary for MyExtension {}

rust/src/planet.rs

@@ -0,0 +1,11 @@
+use godot::classes::RigidBody3D;
+use godot::prelude::*;
+
+#[derive(GodotClass)]
+#[class(base=RigidBody3D)]
+struct Planet3D {
+    size: f64,
+    rotational_speed: f64,
+
+    base: Base<RigidBody3D>,
+}