Implemented fog saving

core/src/io/anuke/mindustry/Mindustry.java

@@ -29,7 +29,10 @@ public class Mindustry extends ModuleCore{
         module(ui = new UI());
         module(netServer = new NetServer());
         module(netClient = new NetClient());
+    }
 
+    @Override
+    public void postInit(){
         Log.info("Time to load [total]: {0}", Timers.elapsed());
     }
 

core/src/io/anuke/mindustry/core/Control.java

@@ -48,7 +48,6 @@ public class Control extends Module{
     private ObjectMap<Sound, Long> soundMap = new ObjectMap<>();
 
     private Throwable error;
-    //private Input gdxInput;
 
     public Control(){
 
@@ -68,8 +67,6 @@ public class Control extends Module{
 
         db.load();
 
-        //gdxInput = Gdx.input;
-
         Sounds.setFalloff(9000f);
         Sounds.setPlayer((sound, volume) -> {
             long time = TimeUtils.millis();

core/src/io/anuke/mindustry/core/UI.java

@@ -179,6 +179,7 @@ public class UI extends SceneModule{
         listfrag.build(group);
         debugfrag.build(group);
         loadfrag.build(group);
+
     }
 
     @Override

core/src/io/anuke/mindustry/editor/MapEditorDialog.java

@@ -495,7 +495,7 @@ public class MapEditorDialog extends Dialog implements Disposable{
                     .size(size).get().setAlignment(Align.center, Align.center);
 
                     t.addImageButton("icon-arrow-right", 16 * 2f, () -> editor.setDrawElevation(editor.getDrawElevation() + 1))
-                    .disabled(b -> editor.getDrawElevation() >= 127).size(size);
+                    .disabled(b -> editor.getDrawElevation() >= 63).size(size);
                 }).colspan(3).height(size).padTop(-5).width(size * 3f);
 
             }).margin(0).left().growY();

core/src/io/anuke/mindustry/game/Saves.java

@@ -75,8 +75,7 @@ public class Saves{
 
                 Timers.run(2f, () -> {
                     try{
-                        SaveIO.saveToSlot(current.index);
+                        current.save();
-                        current.meta = SaveIO.getData(current.index);
                     }catch(Exception e){
                         e.printStackTrace();
                     }
@@ -108,10 +107,7 @@ public class Saves{
         slot.setName(name);
         saves.add(slot);
         saveMap.put(slot.index, slot);
-        SaveIO.saveToSlot(slot.index);
+        slot.save();
-        slot.meta = SaveIO.getData(slot.index);
-        current = slot;
-
         saveSlots();
         return slot;
     }
@@ -162,9 +158,18 @@ public class Saves{
         }
 
         public void save(){
+            threads.runGraphics(() -> {
+                //Renderer fog needs to be written on graphics thread, but save() can run on logic thread
+                //thus, runGraphics is required here
+                renderer.fog().writeFog();
+
+                //save on the logic thread
+                threads.run(() -> {
                     SaveIO.saveToSlot(index);
                     meta = SaveIO.getData(index);
                     current = this;
+                });
+            });
         }
 
         public boolean isHidden(){

core/src/io/anuke/mindustry/graphics/FogRenderer.java

@@ -2,6 +2,7 @@ package io.anuke.mindustry.graphics;
 
 import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.graphics.Color;
+import com.badlogic.gdx.graphics.GL20;
 import com.badlogic.gdx.graphics.Pixmap.Format;
 import com.badlogic.gdx.graphics.Texture;
 import com.badlogic.gdx.graphics.g2d.TextureRegion;
@@ -32,10 +33,11 @@ public class FogRenderer implements Disposable{
 
     private TextureRegion region = new TextureRegion();
     private FrameBuffer buffer;
-    private ByteBuffer pixelBuffer = ByteBuffer.allocateDirect(4);
+    private ByteBuffer pixelBuffer;
     private Array<Tile> changeQueue = new Array<>();
     private int padding;
     private Rectangle rect = new Rectangle();
+    private boolean dirty;
 
     public FogRenderer(){
         Events.on(WorldLoadGraphicsEvent.class, () -> {
@@ -51,15 +53,8 @@ public class FogRenderer implements Disposable{
             Graphics.clear(0, 0, 0, 1f);
             buffer.end();
 
-            for(int x = 0; x < world.width(); x++){
+            pixelBuffer = ByteBuffer.allocateDirect(world.width() * world.height() * 3);
-                for(int y = 0; y < world.height(); y++){
+            dirty = true;
-                    Tile tile = world.tile(x, y);
-
-                    if(tile.getTeam() == players[0].getTeam() && tile.block().synthetic() && tile.block().viewRange > 0){
-                        changeQueue.add(tile);
-                    }
-                }
-            }
         });
 
         Events.on(TileChangeEvent.class, tile -> threads.runGraphics(() -> {
@@ -69,6 +64,25 @@ public class FogRenderer implements Disposable{
         }));
     }
 
+    public void writeFog(){
+        if(buffer == null) return;
+
+        buffer.begin();
+        pixelBuffer.position(0);
+        Gdx.gl.glPixelStorei(GL20.GL_PACK_ALIGNMENT, 1);
+        Gdx.gl.glReadPixels(padding, padding, world.width(), world.height(), GL20.GL_RGB, GL20.GL_UNSIGNED_BYTE, pixelBuffer);
+
+        pixelBuffer.position(0);
+        for(int i = 0; i < world.width() * world.height(); i++){
+            byte r = pixelBuffer.get();
+            if(r != 0){
+                world.tile(i).setVisibility((byte)1);
+            }
+            pixelBuffer.position(pixelBuffer.position() + 2);
+        }
+        buffer.end();
+    }
+
     public int getPadding(){
         return padding;
     }
@@ -94,12 +108,6 @@ public class FogRenderer implements Disposable{
 
         buffer.begin();
 
-        //TODO use this for per-tile visibility to show/hide units
-        //pixelBuffer.position(0);
-        //Gdx.gl.glPixelStorei(GL20.GL_PACK_ALIGNMENT, 1);
-        //Gdx.gl.glReadPixels(world.width()/2, world.height()/2 + 20, 1, 1, GL20.GL_RGB, GL20.GL_UNSIGNED_BYTE, pixelBuffer);
-        //Log.info(pixelBuffer.get(0));
-
         boolean pop = ScissorStack.pushScissors(rect.set((padding-shadowPadding), (padding-shadowPadding),
                     (world.width() + shadowPadding*2) ,
                     (world.height() + shadowPadding*2)));
@@ -118,6 +126,16 @@ public class FogRenderer implements Disposable{
 
         changeQueue.clear();
 
+        if(dirty){
+            for(int i = 0; i < world.width() * world.height(); i++){
+                Tile tile = world.tile(i);
+                if(tile.discovered()){
+                    Fill.rect(tile.worldx(), tile.worldy(), tilesize, tilesize);
+                }
+            }
+            dirty = false;
+        }
+
         EntityDraw.setClip(true);
         Graphics.end();
         buffer.end();

core/src/io/anuke/mindustry/io/versions/Save16.java

@@ -135,6 +135,18 @@ public class Save16 extends SaveFileVersion{
             tiles[x][y] = tile;
         }
 
+        for(int i = 0; i < width * height; i++){
+            boolean discovered = stream.readBoolean();
+            int consecutives = stream.readUnsignedShort();
+            if(discovered){
+                for(int j = i + 1; j < i + 1 + consecutives; j++){
+                    int newx = j % width, newy = j / width;
+                    tiles[newx][newy].setVisibility((byte) 1);
+                }
+            }
+            i += consecutives;
+        }
+
         world.endMapLoad();
     }
 
@@ -223,5 +235,27 @@ public class Save16 extends SaveFileVersion{
                 i += consecutives;
             }
         }
+
+        //write visibility, length-run encoded
+        for(int i = 0; i < world.width() * world.height(); i++){
+            Tile tile = world.tile(i);
+            boolean discovered = tile.discovered();
+
+            int consecutives = 0;
+
+            for(int j = i + 1; j < world.width() * world.height() && consecutives < 32767*2-1; j++){
+                Tile nextTile = world.tile(j);
+
+                if(nextTile.discovered() != discovered){
+                    break;
+                }
+
+                consecutives++;
+            }
+
+            stream.writeBoolean(discovered);
+            stream.writeShort(consecutives);
+            i += consecutives;
+        }
     }
 }

core/src/io/anuke/mindustry/net/NetworkIO.java

@@ -96,6 +96,28 @@ public class NetworkIO{
                 }
             }
 
+            //write visibility, length-run encoded
+            for(int i = 0; i < world.width() * world.height(); i++){
+                Tile tile = world.tile(i);
+                boolean discovered = tile.discovered();
+
+                int consecutives = 0;
+
+                for(int j = i + 1; j < world.width() * world.height() && consecutives < 32767*2-1; j++){
+                    Tile nextTile = world.tile(j);
+
+                    if(nextTile.discovered() != discovered){
+                        break;
+                    }
+
+                    consecutives++;
+                }
+
+                stream.writeBoolean(discovered);
+                stream.writeShort(consecutives);
+                i += consecutives;
+            }
+
             //write team data
             stream.writeByte(state.teams.getTeams().size);
             for(TeamData data : state.teams.getTeams()){
@@ -215,6 +237,18 @@ public class NetworkIO{
                 tiles[x][y] = tile;
             }
 
+            for(int i = 0; i < width * height; i++){
+                boolean discovered = stream.readBoolean();
+                int consecutives = stream.readUnsignedShort();
+                if(discovered){
+                    for(int j = i + 1; j < i + 1 + consecutives; j++){
+                        int newx = j % width, newy = j / width;
+                        tiles[newx][newy].setVisibility((byte) 1);
+                    }
+                }
+                i += consecutives;
+            }
+
             player.reset();
             state.teams = new TeamInfo();
 

core/src/io/anuke/mindustry/world/Tile.java

@@ -44,6 +44,8 @@ public class Tile implements PosTrait, TargetTrait{
     private byte team;
     /** Tile elevation. -1 means slope.*/
     private byte elevation;
+    /** Visibility status: 3 states, but saved as a single bit. 0 = unexplored, 1 = visited, 2 = currently visible (saved as 1)*/
+    private byte visibility;
 
     public Tile(int x, int y){
         this.x = (short) x;
@@ -67,6 +69,10 @@ public class Tile implements PosTrait, TargetTrait{
         this.team = team;
     }
 
+    public boolean discovered(){
+        return visibility > 0;
+    }
+
     public int packedPosition(){
         return x + y * world.width();
     }
@@ -172,6 +178,14 @@ public class Tile implements PosTrait, TargetTrait{
         this.floor = type;
     }
 
+    public byte getVisibility(){
+        return visibility;
+    }
+
+    public void setVisibility(byte visibility){
+        this.visibility = visibility;
+    }
+
     public byte getRotation(){
         return rotation;
     }

desktop/src/io/anuke/mindustry/desktop/DesktopPlatform.java

@@ -108,8 +108,8 @@ public class DesktopPlatform extends Platform{
     @Override
     public boolean isDebug(){
         //honestly I'm just putting this ridiculous """anti-debug""" mess here to see if anyone bothers solving it without editing source
-        return args.length > 0 && args[0].equals("-debug_" + getUUID().hashCode() + "_"
+        return args.length > 0 && args[0].equals(("-debug_" + getUUID().hashCode() + "_"
-                + " " + System.getProperty("os.arch") + "nice" + (int)(Math.sin(System.getProperty("user.dir").hashCode()) * 100) + Thread.currentThread().getStackTrace()[1].toString()) && new File("../../desktop/build/").exists();
+                + " " + System.getProperty("os.arch") + "nice" + (int)(Math.sin(System.getProperty("user.dir").hashCode()) * 100) + Thread.currentThread().getStackTrace()[1].toString()).hashCode() + "") && new File("../../desktop/build/").exists();
     }
 
     @Override