seed saved per world and ui input for seed

src/main/java/electrosphere/client/ui/menu/mainmenu/MenuWorldSelect.java

@@ -11,6 +11,7 @@ import electrosphere.entity.scene.SceneGenerator;
 import electrosphere.renderer.ui.elements.Button;
 import electrosphere.renderer.ui.elements.Div;
 import electrosphere.renderer.ui.elements.FormElement;
+import electrosphere.renderer.ui.elements.Label;
 import electrosphere.renderer.ui.elements.TextInput;
 import electrosphere.renderer.ui.elementtypes.ContainerElement.YogaAlignment;
 import electrosphere.renderer.ui.elementtypes.ContainerElement.YogaJustification;
@@ -89,23 +90,37 @@ public class MenuWorldSelect {
     public static Element createWorldCreationMenu(){
         FormElement rVal = new FormElement();
 
-        //text entry (address)
+        //text entry (world name)
         Div worldNameInputContainer = Div.createRow();
         worldNameInputContainer.setMarginBottom(20);
+        Label worldNameLabel = Label.createLabel("Input Name: ");
+        worldNameInputContainer.addChild(worldNameLabel);
         TextInput worldNameInput = TextInput.createTextInput();
         worldNameInput.setMinWidth(100);
         worldNameInput.setMaxWidthPercent(50);
         worldNameInput.setText("World name");
         worldNameInputContainer.addChild(worldNameInput);
 
+        //text entry (world seed)
+        Div worldSeedInputContainer = Div.createRow();
+        worldSeedInputContainer.setMarginBottom(20);
+        Label worldSeedLabel = Label.createLabel("Input Seed: ");
+        worldSeedInputContainer.addChild(worldSeedLabel);
+        TextInput worldSeedInput = TextInput.createTextInput();
+        worldSeedInput.setMinWidth(100);
+        worldSeedInput.setMaxWidthPercent(50);
+        worldSeedInput.setText(System.currentTimeMillis() + "");
+        worldSeedInputContainer.addChild(worldSeedInput);
+
         
         //button (create)
         Div createButtonContainer = Div.createCol();
         createButtonContainer.setMarginTop(20);
         createButtonContainer.addChild(Button.createButton("Create", () -> {
             String saveName = worldNameInput.getText();
+            String seed = worldSeedInput.getText();
             //create save dir
-            SaveUtils.createOrOverwriteSave(saveName, SceneGenerator.createProceduralSceneFile(saveName));
+            SaveUtils.createOrOverwriteSave(saveName, SceneGenerator.createProceduralSceneFile(saveName, seed));
             WindowUtils.replaceMainMenuContents(MenuWorldSelect.createWorldSelectMenu());
         }));
 
@@ -113,6 +128,7 @@ public class MenuWorldSelect {
         //layout content
         Div mainLayout = Div.createCol(
             worldNameInputContainer,
+            worldSeedInputContainer,
             createButtonContainer
         );
         mainLayout.setMarginTop(300);

src/main/java/electrosphere/engine/loadingthreads/DebugSPWorldLoading.java

@@ -33,7 +33,7 @@ public class DebugSPWorldLoading {
             //the juicy server GENERATION part
             //
             //init save structure
-            SaveUtils.createOrOverwriteSave(saveName, SceneGenerator.createProceduralSceneFile(saveName));
+            SaveUtils.createOrOverwriteSave(saveName, SceneGenerator.createProceduralSceneFile(saveName, ""));
         }
         //load just-created save
         SaveUtils.loadSave(saveName, false);

src/main/java/electrosphere/engine/loadingthreads/ServerLoading.java

@@ -37,7 +37,7 @@ public class ServerLoading {
             //the juicy server GENERATION part
             //
             //init save structure
-            SaveUtils.createOrOverwriteSave(saveName, SceneGenerator.createProceduralSceneFile(saveName));
+            SaveUtils.createOrOverwriteSave(saveName, SceneGenerator.createProceduralSceneFile(saveName, ""));
         }
         //load just-created save
         SaveUtils.loadSave(saveName, false);

src/main/java/electrosphere/entity/scene/SceneFile.java

@@ -38,6 +38,11 @@ public class SceneFile {
      */
     boolean loadAllCells;
 
+    /**
+     * The seed for the random number generator
+     */
+    long seed = 0;
+
 
     /**
      * Private constructor
@@ -117,4 +122,12 @@ public class SceneFile {
         return loadAllCells;
     }
 
+    /**
+     * Gets the seed of the scene file
+     * @return The seed
+     */
+    public long getSeed(){
+        return seed;
+    }
+
 }

src/main/java/electrosphere/entity/scene/SceneGenerator.java

@@ -1,5 +1,7 @@
 package electrosphere.entity.scene;
 
+import java.util.Objects;
+
 import electrosphere.server.datacell.gridded.GriddedDataCellManager;
 import electrosphere.server.terrain.generation.TestGenerationChunkGenerator;
 
@@ -13,7 +15,7 @@ public class SceneGenerator {
      * @param gridSize The size of the terrain grid of the scene
      * @return The scene file
      */
-    public static SceneFile createProceduralSceneFile(String saveName){
+    public static SceneFile createProceduralSceneFile(String saveName, String seed){
         //base file stuff
         SceneFile file = SceneFile.createSceneFile();
         //realm descriptor stuff
@@ -21,7 +23,7 @@ public class SceneGenerator {
         file.realmDescriptor.griddedRealmSize = GriddedDataCellManager.MAX_GRID_SIZE;
         file.createSaveInstance = true; //won't have a predefined scene to load, so must create one in the save
         file.loadAllCells = false; // do not load all cells on init
-        
+        file.seed = Objects.hash(seed);
         return file;
     }
 

src/main/java/electrosphere/server/saves/SaveUtils.java

@@ -115,7 +115,7 @@ public class SaveUtils {
             ServerWorldData serverWorldData = ServerWorldData.createGriddedRealmWorldData(ServerWorldData.PROCEDURAL_WORLD_SIZE);
             FileUtils.serializeObjectToSavePath(saveName, "./world.json", serverWorldData);
             //terrain manager
-            ServerTerrainManager serverTerrainManager = new ServerTerrainManager(serverWorldData, 0, new TestGenerationChunkGenerator(serverWorldData, false));
+            ServerTerrainManager serverTerrainManager = new ServerTerrainManager(serverWorldData, sceneFile.getSeed(), new TestGenerationChunkGenerator(serverWorldData, false));
             serverTerrainManager.generate();
             serverTerrainManager.save(saveName);
             //fluid manager

src/main/java/electrosphere/server/terrain/generation/TestGenerationChunkGenerator.java

@@ -395,6 +395,12 @@ public class TestGenerationChunkGenerator implements ChunkGenerator {
     @Override
     public void setModel(TerrainModel model) {
         this.terrainModel = model;
+        for(HeightmapGenerator generator : this.tagHeightmapMap.values()){
+            generator.setSeed(model.getSeed());
+        }
+        for(VoxelGenerator generator : this.tagVoxelMap.values()){
+            generator.setSeed(model.getSeed());
+        }
     }
 
 }

src/main/java/electrosphere/server/terrain/generation/continentphase/TerrainGenerator.java

@@ -169,7 +169,7 @@ public class TerrainGenerator {
         //         MOUNTAIN_THRESHOLD * verticalInterpolationRatio,
         //         dynamicInterpRatio
         // );
-        rVal = TerrainModel.create();
+        rVal = TerrainModel.create(0);
 
 
         //create internal renderer

src/main/java/electrosphere/server/terrain/generation/heightmap/EmptySkyGen.java

@@ -2,6 +2,11 @@ package electrosphere.server.terrain.generation.heightmap;
 
 public class EmptySkyGen implements HeightmapGenerator {
 
+    /**
+     * The seed of the generator
+     */
+    long seed = 0;
+
     @Override
     public float getHeight(long SEED, double x, double y) {
         return 0;
@@ -12,4 +17,9 @@ public class EmptySkyGen implements HeightmapGenerator {
         return "empty";
     }
 
+    @Override
+    public void setSeed(long seed){
+        this.seed = seed;
+    }
+    
 }

src/main/java/electrosphere/server/terrain/generation/heightmap/HeightmapGenerator.java

@@ -20,4 +20,10 @@ public interface HeightmapGenerator {
      */
     public String getTag();
 
+    /**
+     * Sets the seed of the generator
+     * @param seed The seed
+     */
+    public void setSeed(long seed);
+
 }

src/main/java/electrosphere/server/terrain/generation/heightmap/HeightmapNoiseGen.java

@@ -13,6 +13,11 @@ public class HeightmapNoiseGen implements HeightmapGenerator {
      */
     String tag;
 
+    /**
+     * The seed of the generator
+     */
+    long seed = 0;
+
     /**
      * The sampler to pull from when allocating voxels
      */
@@ -37,4 +42,9 @@ public class HeightmapNoiseGen implements HeightmapGenerator {
         return tag;
     }
 
+    @Override
+    public void setSeed(long seed){
+        this.seed = seed;
+    }
+    
 }

src/main/java/electrosphere/server/terrain/generation/heightmap/HillsGen.java

@@ -40,6 +40,11 @@ public class HillsGen implements HeightmapGenerator {
     //param for controlling how pointer the initial layers are
     public static float GRAD_INFLUENCE_DROPOFF = 0.35f;
 
+    /**
+     * The seed of the generator
+     */
+    long seed = 0;
+
 
     /**
      * Gets the height at a given position for this generation approach
@@ -96,4 +101,9 @@ public class HillsGen implements HeightmapGenerator {
         return "hills";
     }
 
+    @Override
+    public void setSeed(long seed){
+        this.seed = seed;
+    }
+    
 }

src/main/java/electrosphere/server/terrain/generation/heightmap/MountainGen.java

@@ -46,6 +46,10 @@ public class MountainGen implements HeightmapGenerator {
         {0.3, 0.2},
     };
 
+    /**
+     * The seed of the generator
+     */
+    long seed = 0;
 
     /**
      * Gets the height at a given position for this generation approach
@@ -94,4 +98,9 @@ public class MountainGen implements HeightmapGenerator {
     public String getTag() {
         return "mountains";
     }
+
+    @Override
+    public void setSeed(long seed){
+        this.seed = seed;
+    }
 }

src/main/java/electrosphere/server/terrain/generation/heightmap/PlainsGen.java

@@ -17,6 +17,11 @@ public class PlainsGen implements HeightmapGenerator {
      */
     static final float GEN_SCALE = 0.2f;
 
+    /**
+     * The seed of the generator
+     */
+    long seed = 0;
+
     //the different scales of noise to sample from
     static final double[][] NOISE_SCALES = new double[][]{
         {0.01, 3.0},
@@ -62,4 +67,9 @@ public class PlainsGen implements HeightmapGenerator {
         return "plains";
     }
 
+    @Override
+    public void setSeed(long seed){
+        this.seed = seed;
+    }
+    
 }

src/main/java/electrosphere/server/terrain/generation/heightmap/SeaFloorGen.java

@@ -7,6 +7,11 @@ import electrosphere.util.noise.OpenSimplex2S;
  */
 public class SeaFloorGen implements HeightmapGenerator {
 
+    /**
+     * The seed of the generator
+     */
+    long seed = 0;
+
     /**
      * The scale of the noise
      */
@@ -23,4 +28,9 @@ public class SeaFloorGen implements HeightmapGenerator {
         return "seafloor";
     }
 
+    @Override
+    public void setSeed(long seed){
+        this.seed = seed;
+    }
+    
 }

src/main/java/electrosphere/server/terrain/generation/macro/DefaultMacroGenerator.java

@@ -17,6 +17,7 @@ public class DefaultMacroGenerator implements MacroGenerator {
         int DIM = model.getDiscreteArrayDimension();
         float[][] elevation = model.getElevation();
         short[][] biome = model.getBiome();
+        long seed = model.getSeed();
 
         for(int x = 0; x < DIM; x++){
             for(int y = 0; y < DIM; y++){

src/main/java/electrosphere/server/terrain/generation/voxelphase/AnimeMountainsGen.java

@@ -57,11 +57,21 @@ public class AnimeMountainsGen implements VoxelGenerator {
      */
     public static final double VERTICAL_ROTATION_OFFSET_VARIANCE = 0.2;
 
+    /**
+     * The seed for the generator
+     */
+    long seed = 0;
+
     @Override
     public String getTag() {
         return "animeMountain";
     }
 
+    @Override
+    public void setSeed(long seed){
+        this.seed = seed;
+    }
+
     @Override
     public void getVoxel(
         GeneratedVoxel voxel,

src/main/java/electrosphere/server/terrain/generation/voxelphase/HillsVoxelGen.java

@@ -15,12 +15,22 @@ public class HillsVoxelGen implements VoxelGenerator {
      */
     public static final int SURFACE_VOXEL_WIDTH = 2;
 
+    /**
+     * The seed of the generator
+     */
+    long seed;
+
 
     @Override
     public String getTag(){
         return "hills";
     }
 
+    @Override
+    public void setSeed(long seed){
+        this.seed = seed;
+    }
+
     @Override
     public void getVoxel(
         GeneratedVoxel voxel,

src/main/java/electrosphere/server/terrain/generation/voxelphase/MountainVoxelGen.java

@@ -22,12 +22,21 @@ public class MountainVoxelGen  implements VoxelGenerator {
      */
     public static final float GRADIENT_DIRT_CUTOFF = 0.1f;
 
+    /**
+     * The seed of the generator
+     */
+    long seed;
 
     @Override
     public String getTag(){
         return "mountains";
     }
 
+    @Override
+    public void setSeed(long seed){
+        this.seed = seed;
+    }
+
     @Override
     public void getVoxel(
         GeneratedVoxel voxel,

src/main/java/electrosphere/server/terrain/generation/voxelphase/NoiseVoxelGen.java

@@ -31,6 +31,11 @@ public class NoiseVoxelGen implements VoxelGenerator {
      */
     NoiseSampler sampler;
 
+    /**
+     * The seed of the generator
+     */
+    long seed;
+
     /**
      * Constructor
      * @param samplerDefinitionFile The file to model this generator off of
@@ -45,6 +50,11 @@ public class NoiseVoxelGen implements VoxelGenerator {
         return tag;
     }
 
+    @Override
+    public void setSeed(long seed){
+        this.seed = seed;
+    }
+
     @Override
     public void getVoxel(
         GeneratedVoxel voxel,

src/main/java/electrosphere/server/terrain/generation/voxelphase/VoxelGenerator.java

@@ -17,6 +17,12 @@ public interface VoxelGenerator {
      */
     public String getTag();
 
+    /**
+     * Sets the seed of the generator
+     * @param seed The seed
+     */
+    public void setSeed(long seed);
+
 
     /**
      * Gets the value for a chunk

src/main/java/electrosphere/server/terrain/manager/ServerTerrainManager.java

@@ -100,7 +100,7 @@ public class ServerTerrainManager {
      * Generates a terrain model for the manager
      */
     public void generate(){
-        this.model = TerrainModel.create();
+        this.model = TerrainModel.create(this.seed);
         DefaultMacroGenerator generator = new DefaultMacroGenerator();
         generator.generate(this.model);
         this.chunkGenerator.setModel(this.model);

src/main/java/electrosphere/server/terrain/models/TerrainModel.java

@@ -83,10 +83,11 @@ public class TerrainModel {
      * Creates the default terrain model
      * @return The default terrain model
      */
-    public static TerrainModel create(){
+    public static TerrainModel create(long seed){
         TerrainModel rVal = new TerrainModel();
         rVal.elevation = new float[rVal.discreteArrayDimension][rVal.discreteArrayDimension];
         rVal.biome = new short[rVal.discreteArrayDimension][rVal.discreteArrayDimension];
+        rVal.seed = seed;
         return rVal;
     }