Universe time + Progress on solar system framework

core/src/mindustry/Vars.java

@@ -165,6 +165,7 @@ public class Vars implements Loadable{
     public static Schematics schematics = new Schematics();
     public static BeControl becontrol;
 
+    public static Universe universe;
     public static World world;
     public static Maps maps;
     public static WaveSpawner spawner;
@@ -217,6 +218,7 @@ public class Vars implements Loadable{
         defaultWaves = new DefaultWaves();
         collisions = new EntityCollisions();
         world = new World();
+        universe = new Universe();
         becontrol = new BeControl();
 
         maps = new Maps();

core/src/mindustry/content/Planets.java

@@ -5,12 +5,18 @@ import mindustry.maps.planet.*;
 import mindustry.type.*;
 
 public class Planets implements ContentList{
-    //TODO make all names
-    public static Planet starter;
+    public static Planet
+    sun,
+    starter;
 
     @Override
     public void load(){
-        starter = new Planet("TODO", 3){{
+        sun = new Planet("sun", null, 3, 1){{
+            detail = 6;
+            generator = new TestPlanetGenerator();
+        }};
+
+        starter = new Planet("TODO", sun, 3, 1){{
             detail = 6;
             generator = new TestPlanetGenerator();
         }};

core/src/mindustry/core/ContentLoader.java

@@ -267,4 +267,8 @@ public class ContentLoader{
     public Array<UnitType> units(){
         return getBy(ContentType.unit);
     }
+
+    public Array<Planet> planets(){
+        return getBy(ContentType.planet);
+    }
 }

core/src/mindustry/core/Control.java

@@ -270,6 +270,8 @@ public class Control implements ApplicationListener, Loadable{
                 logic.reset();
                 world.loadSector(sector);
                 state.rules.sector = sector;
+                //TODO enable for lighting
+                //state.rules.lighting = true;
                 logic.play();
                 control.saves.saveSector(sector);
                 //TODO uncomment for efffect

core/src/mindustry/core/Logic.java

@@ -211,6 +211,7 @@ public class Logic implements ApplicationListener{
             }
 
             if(!state.isPaused()){
+                universe.update();
                 Time.update();
 
                 if(state.rules.waves && state.rules.waveTimer && !state.gameOver){

core/src/mindustry/game/Universe.java

@@ -0,0 +1,48 @@
+package mindustry.game;
+
+import arc.*;
+import arc.util.*;
+
+public class Universe{
+    private long seconds;
+    private float secondCounter;
+
+    public Universe(){
+        load();
+    }
+
+    public void update(){
+        secondCounter += Time.delta() / 60f;
+        if(secondCounter >= 1){
+            seconds += (int)secondCounter;
+            secondCounter %= 1f;
+
+            //save every few seconds
+            if(seconds % 10 == 1){
+                save();
+            }
+        }
+    }
+
+    public float secondsMod(float mod, float scale){
+        return (seconds / scale) % mod;
+    }
+
+    public long seconds(){
+        return seconds;
+    }
+
+    public float secondsf(){
+        return seconds + secondCounter;
+    }
+
+    private void save(){
+        Core.settings.put("utime", seconds);
+        Core.settings.save();
+    }
+
+    private void load(){
+        seconds = Core.settings.getLong("utime");
+    }
+
+}

core/src/mindustry/graphics/LightRenderer.java

@@ -201,4 +201,4 @@ public class LightRenderer{
 
         lights.clear();
     }
-}
+}

core/src/mindustry/type/Planet.java

@@ -1,6 +1,7 @@
 package mindustry.type;
 
 import arc.files.*;
+import arc.math.*;
 import arc.math.geom.*;
 import arc.scene.ui.layout.*;
 import arc.struct.*;
@@ -14,9 +15,13 @@ import mindustry.graphics.g3d.PlanetGrid.*;
 import mindustry.maps.generators.*;
 import mindustry.type.Sector.*;
 
+import static mindustry.Vars.universe;
+
 public class Planet extends UnlockableContent{
+    /** Default spacing between planet orbits in world units. */
+    private static final float orbitSpacing = 6f;
     /** Mesh used for rendering. Created on load() - will be null on the server! */
-    public PlanetMesh mesh;
+    public GenericMesh mesh;
     /** Grid used for the sectors on the planet. */
     public @NonNull PlanetGrid grid;
     /** Generator that will make the planet. */
@@ -25,15 +30,28 @@ public class Planet extends UnlockableContent{
     public @NonNull Array<Sector> sectors;
     /** Detail in divisions. Must be between 1 and 10. 6 is a good number for this.*/
     public int detail = 3;
-    /** Size in terms of divisions. This only controls the amount of sectors on the planet, not the visuals. */
-    public int size;
-    /** Radius of the mesh/sphere. */
-    public float radius = 1f;
+    /** Radius of this planet's sphere. Does not take into account sattelites. */
+    public float radius;
+    /** Orbital radius around the sun. Do not change unless you know exactly what you are doing.*/
+    public float orbitRadius;
+    /** Total radius of this planet and all its children. */
+    public float totalRadius;
+    /** Time for the planet to orbit around the sun once, in seconds. One year. */
+    public float orbitTime;
+    /** Time for the planet to perform a full revolution, in seconds. One day. */
+    public float rotateTime = 24f * 60f;
+    /** Whether this planet is tidally locked relative to its parent - see https://en.wikipedia.org/wiki/Tidal_locking */
+    public boolean tidalLock = false;
+    /** Parent body that this planet orbits around. If null, this planet is considered to be in the middle of the solar system.*/
+    public @Nullable Planet parent;
+    /** All planets orbiting this one, in ascending order of radius. */
+    public Array<Planet> children = new Array<>();
 
-    public Planet(String name, int size){
+    public Planet(String name, Planet parent, int size, float radius){
         super(name);
 
-        this.size = 3;
+        this.radius = radius;
+        this.parent = parent;
 
         grid = PlanetGrid.create(size);
 
@@ -42,6 +60,18 @@ public class Planet extends UnlockableContent{
             sectors.add(new Sector(this, grid.tiles[i], new SectorData()));
         }
 
+        //get orbit radius by extending past the parent's total radius
+        orbitRadius = parent == null ? 0f : (parent.totalRadius + orbitSpacing + radius);
+
+        //orbit time is based on radius [kepler's third law]
+        orbitTime = Mathf.pow(orbitRadius, 1.5f) * 1000;
+
+        //add this planet to list of children and update parent's radius
+        if(parent != null){
+            parent.children.add(this);
+            parent.updateTotalRadius();
+        }
+
         //read data
         Fi data = Vars.tree.get("planets/" + name + ".dat");
         if(data.exists()){
@@ -57,6 +87,52 @@ public class Planet extends UnlockableContent{
         }
     }
 
+    public void updateTotalRadius(){
+        totalRadius = radius;
+        for(Planet planet : children){
+            //max with highest outer bound planet
+            totalRadius = Math.max(totalRadius, planet.orbitRadius + planet.totalRadius);
+        }
+    }
+
+    /** Calculates orbital rotation based on universe time.*/
+    public float getOrbitAngle(){
+        //applies random offset to prevent planets from starting out in a line
+        float offset = Mathf.randomSeed(id, 360);
+        return (offset + universe.seconds() / (orbitTime / 360f)) % 360f;
+    }
+
+    /** Calulates rotation on own axis based on universe time.*/
+    public float getRotation(){
+        //tidally locked planets always face toward parents
+        if(tidalLock){
+            return getOrbitAngle();
+        }
+        //random offset for more variability
+        float offset = Mathf.randomSeed(id+1, 360);
+        return (offset + universe.seconds() / (rotateTime / 360f)) % 360f;
+    }
+
+    /** Adds this planet's offset relative to its parent to the vector. Used for calculating world positions. */
+    public Vec3 addParentOffset(Vec3 in){
+        //planets with no parents are at the center, so they appear at 0,0
+        if(parent == null || Mathf.zero(orbitRadius)){
+            return in;
+        }
+
+        float angle = getOrbitAngle();
+        return in.add(Angles.trnsx(angle, orbitRadius), Angles.trnsy(angle, orbitRadius), 0f);
+    }
+
+    /** Gets the absolute world position of this planet, taking into account all parents. O(n) complexity.*/
+    public Vec3 getWorldPosition(Vec3 in){
+        in.setZero();
+        for(Planet current = this; current != null; current = current.parent){
+            current.addParentOffset(in);
+        }
+        return in;
+    }
+
     @Override
     public void load(){
         mesh = new PlanetMesh(detail, generator);

core/src/mindustry/ui/dialogs/PlanetDialog.java

@@ -31,10 +31,15 @@ public class PlanetDialog extends FloatingDialog{
     private static final float camLength = 4f;
     float outlineRad = 1.15f;
 
+    //the base planet that's being rendered
+    private final Planet solarSystem = Planets.sun;
+
     private final PlanetMesh[] outlines = new PlanetMesh[10];
     private final Camera3D cam = new Camera3D();
     private final VertexBatch3D batch = new VertexBatch3D(false, true, 0);
     private final PlaneBatch3D projector = new PlaneBatch3D();
+    private final Mat3D mat = new Mat3D();
+
 
     private final SphereMesh sun = new SphereMesh(3, 1.2f);
     private final Bloom bloom = new Bloom(false){{
@@ -57,7 +62,7 @@ public class PlanetDialog extends FloatingDialog{
         projector.setScaling(1f / 300f);
 
         update(() -> {
-            Ptile tile = outline(planet.size).getTile(cam.getPickRay(Core.input.mouseX(), Core.input.mouseY()));
+            Ptile tile = outline(planet.grid.size).getTile(cam.getPickRay(Core.input.mouseX(), Core.input.mouseY()));
             hovered = tile == null ? null : planet.getSector(tile);
 
             Vec3 v = Tmp.v33.set(Core.input.mouseX(), Core.input.mouseY(), 0);
@@ -150,9 +155,10 @@ public class PlanetDialog extends FloatingDialog{
         projector.proj(cam.combined());
         batch.proj(cam.combined());
 
-        renderSun();
-        renderPlanet();
+        renderPlanet(solarSystem);
 
+        //renderSun();
+        //renderPlanet();
 
         for(Sector sec : planet.sectors){
             if(sec.save == null){
@@ -198,11 +204,33 @@ public class PlanetDialog extends FloatingDialog{
         }
     }
 
+    private void renderPlanet(Planet planet){
+        //render planet at offsetted position in the world
+        Vec3 position = planet.getWorldPosition(Tmp.v33);
+        mat.set(cam.combined()).trn(position); //TODO this probably won't give the desired result
+        planet.mesh.render(mat);
+
+        renderOrbit(planet);
+
+        for(Planet child : planet.children){
+            renderPlanet(child);
+        }
+    }
+
+    private void renderOrbit(Planet planet){
+        if(planet.parent == null) return;
+
+        Vec3 center = planet.parent.getWorldPosition(Tmp.v31);
+        float radius = planet.radius;
+        int points = (int)(radius * 10);
+        Angles.circleVectors(points, radius, (cx, cy) -> batch.vertex(Tmp.v32.set(center).add(cx, 0, cy), Pal.gray));
+        batch.flush(Gl.lineLoop);
+    }
+
     private void renderPlanet(){
-        PlanetMesh outline = outline(planet.size);
+        PlanetMesh outline = outline(planet.grid.size);
         Vec3 tile = outline.intersect(cam.getPickRay(Core.input.mouseX(), Core.input.mouseY()));
         Shaders.planetGrid.mouse.lerp(tile == null ? Vec3.Zero : tile, 0.2f);
-
         Shaders.planet.lightDir.set(Shaders.sun.center).nor();
 
         planet.mesh.render(cam.combined());

gradle.properties

@@ -1,3 +1,3 @@
 org.gradle.daemon=true
 org.gradle.jvmargs=-Xms256m -Xmx1024m
-archash=7b20f312c317d571738e8f2e53501ae00d48f0d0
+archash=bff072e2d671c74a32b41353125c2aa6ba8c0314