From 7217e9b86d6e44604703ffb9956bcade97cfe9c9 Mon Sep 17 00:00:00 2001
From: fred-boy <fred-boy@protonmail.com>
Date: Tue, 24 Apr 2018 16:09:30 +0700
Subject: [PATCH] Add world saving

---
 android/build.gradle                          |  4 +-
 build.gradle                                  |  2 +-
 .../ru/deadsoftware/cavecraft/CaveGame.java   | 16 +++-
 .../deadsoftware/cavecraft/game/GameProc.java |  7 +-
 .../cavecraft/game/GameWorld.java             | 33 +++++--
 .../cavecraft/game/WorldSaver.java            | 96 +++++++++++++++++++
 6 files changed, 143 insertions(+), 15 deletions(-)
 create mode 100644 core/src/ru/deadsoftware/cavecraft/game/WorldSaver.java

diff --git a/android/build.gradle b/android/build.gradle
index 1689a1a..b15a589 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -21,8 +21,8 @@ android {
         applicationId "ru.deadsoftware.cavecraft"
         minSdkVersion 9
         targetSdkVersion 20
-        versionCode 3
-        versionName "alpha0.2.1"
+        versionCode 4
+        versionName "alpha0.3-dev"
     }
     buildTypes {
         release {
diff --git a/build.gradle b/build.gradle
index 8dca349..a53e4cf 100644
--- a/build.gradle
+++ b/build.gradle
@@ -18,7 +18,7 @@ allprojects {
     apply plugin: "eclipse"
     apply plugin: "idea"
 
-    version = 'alpha0.2.1'
+    version = 'alpha0.3-dev'
     ext {
         appName = "CaveCraft"
         gdxVersion = '1.9.7'
diff --git a/core/src/ru/deadsoftware/cavecraft/CaveGame.java b/core/src/ru/deadsoftware/cavecraft/CaveGame.java
index 8a26b6a..31b763a 100644
--- a/core/src/ru/deadsoftware/cavecraft/CaveGame.java
+++ b/core/src/ru/deadsoftware/cavecraft/CaveGame.java
@@ -1,10 +1,12 @@
 package ru.deadsoftware.cavecraft;
 
 import com.badlogic.gdx.Game;
+import com.badlogic.gdx.Gdx;
 
 public class CaveGame extends Game {
 
-	public static final String VERSION = "alpha 0.2.1";
+	public static final String VERSION = "alpha 0.3-dev";
+	public static String GAME_FOLDER;
 
 	public static GameState STATE;
 
@@ -21,6 +23,18 @@ public class CaveGame extends Game {
 
 	@Override
 	public void create () {
+		switch (Gdx.app.getType()) {
+			case Desktop:
+				GAME_FOLDER = System.getProperty("user.home")+"/.cavecraft";
+				break;
+			case Android:
+				GAME_FOLDER = "/sdcard/cavecraft";
+				break;
+			default:
+				Gdx.app.exit();
+		}
+		Gdx.app.log("CaveGame", "Folder: "+GAME_FOLDER);
+		Gdx.files.local(GAME_FOLDER).mkdirs();
 		setScreen(new GameScreen());
 	}
 
diff --git a/core/src/ru/deadsoftware/cavecraft/game/GameProc.java b/core/src/ru/deadsoftware/cavecraft/game/GameProc.java
index dfe4d6b..a4a6c94 100644
--- a/core/src/ru/deadsoftware/cavecraft/game/GameProc.java
+++ b/core/src/ru/deadsoftware/cavecraft/game/GameProc.java
@@ -31,7 +31,12 @@ public class GameProc {
     public long touchDownTime;
 
     public GameProc() {
-        world = new GameWorld(1024,256);
+        world = new GameWorld();
+        if (WorldSaver.exists()) {
+            world.load();
+        } else {
+            world.generate(1024, 256);
+        }
         if (CaveGame.TOUCH) {
             renderer = new GameRenderer(this,320,
                     320*((float)GameScreen.getHeight()/GameScreen.getWidth()));
diff --git a/core/src/ru/deadsoftware/cavecraft/game/GameWorld.java b/core/src/ru/deadsoftware/cavecraft/game/GameWorld.java
index 064eca5..4ed875d 100644
--- a/core/src/ru/deadsoftware/cavecraft/game/GameWorld.java
+++ b/core/src/ru/deadsoftware/cavecraft/game/GameWorld.java
@@ -6,20 +6,11 @@ import ru.deadsoftware.cavecraft.Items;
 
 public class GameWorld {
 
-    private final int WIDTH, HEIGHT;
+    private int WIDTH, HEIGHT;
 
     private int[][] foreMap;
     private int[][] backMap;
 
-    public GameWorld(int w, int h) {
-        WIDTH = w;
-        HEIGHT = h;
-        WorldGen.genWorld(WIDTH,HEIGHT);
-        foreMap = WorldGen.getForeMap();
-        backMap = WorldGen.getBackMap();
-        WorldGen.clear();
-    }
-
     public int getWidth() {
         return WIDTH;
     }
@@ -111,4 +102,26 @@ public class GameWorld {
         return new Vector2(x,y);
     }
 
+    public void generate(int w, int h) {
+        WIDTH = w;
+        HEIGHT = h;
+        WorldGen.genWorld(WIDTH,HEIGHT);
+        foreMap = WorldGen.getForeMap();
+        backMap = WorldGen.getBackMap();
+        WorldGen.clear();
+        save();
+    }
+
+    public void save() {
+        WorldSaver.save(foreMap, backMap);
+    }
+
+    public void load() {
+        WorldSaver.load();
+        foreMap = WorldSaver.getLoadedForeMap();
+        backMap = WorldSaver.getLoadedBackMap();
+        WIDTH = foreMap.length;
+        HEIGHT = foreMap[0].length;
+    }
+
 }
diff --git a/core/src/ru/deadsoftware/cavecraft/game/WorldSaver.java b/core/src/ru/deadsoftware/cavecraft/game/WorldSaver.java
new file mode 100644
index 0000000..41967a2
--- /dev/null
+++ b/core/src/ru/deadsoftware/cavecraft/game/WorldSaver.java
@@ -0,0 +1,96 @@
+package ru.deadsoftware.cavecraft.game;
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.files.FileHandle;
+import ru.deadsoftware.cavecraft.CaveGame;
+
+import java.nio.ByteBuffer;
+
+public class WorldSaver {
+
+    private static final int VERSION = 0;
+
+    private static int[][] fMap, bMap;
+    private static int readIndex;
+
+    private static int bytesInt(byte[] bytes) {
+        ByteBuffer wrapped = ByteBuffer.wrap(bytes);
+        int res = wrapped.getInt(readIndex);
+        readIndex+=4;
+        return res;
+    }
+
+    private static void writeInt(FileHandle file, int i, boolean append) {
+        byte[] bytes = ByteBuffer.allocate(4).putInt(i).array();
+        file.writeBytes(bytes, append);
+    }
+    
+    private static void saveMap(FileHandle file, int[][] map) {
+        int width = map.length;
+        int height = map[0].length;
+        writeInt(file, VERSION, false);
+        writeInt(file, width, true);
+        writeInt(file, height, true);
+        for (int y=0; y<map[0].length; y++) {
+            int bl = map[0][y];
+            int rl = 1;
+            for (int x=0; x<map.length; x++) {
+                if (map[x][y]!=bl || x==map.length-1) {
+                    writeInt(file, rl, true);
+                    writeInt(file, bl, true);
+                    rl=1;
+                    bl=map[x][y];
+                } else {
+                    rl++;
+                }
+            }
+        }
+    }
+
+    private static int[][] loadMap(FileHandle file) {
+        int[][] map = null;
+        int ver, width, height;
+        int rl,bl;
+        byte[] data = file.readBytes();
+        readIndex = 0;
+        ver = bytesInt(data);
+        if (VERSION <= ver) {
+            width = bytesInt(data);
+            height = bytesInt(data);
+            map = new int[width][height];
+            for (int y=0; y<height; y++) {
+                for (int x=0; x<width; x+=rl) {
+                    rl = bytesInt(data);
+                    bl = bytesInt(data);
+                    for (int i=x; i<x+rl; i++) map[i][y] = bl;
+                }
+            }
+        }
+        return map;
+    }
+
+    public static int[][] getLoadedForeMap() {
+        return fMap;
+    }
+
+    public static int[][] getLoadedBackMap() {
+        return bMap;
+    }
+
+    public static void load() {
+        fMap = loadMap(Gdx.files.absolute(CaveGame.GAME_FOLDER+"/saves/foremap.sav"));
+        bMap = loadMap(Gdx.files.absolute(CaveGame.GAME_FOLDER+"/saves/backmap.sav"));
+    }
+
+    public static void save(int[][] foreMap, int[][] backMap) {
+        Gdx.files.absolute(CaveGame.GAME_FOLDER+"/saves/").mkdirs();
+        saveMap(Gdx.files.absolute(CaveGame.GAME_FOLDER+"/saves/foremap.sav"), foreMap);
+        saveMap(Gdx.files.absolute(CaveGame.GAME_FOLDER+"/saves/backmap.sav"), backMap);
+    }
+
+    public static boolean exists() {
+        return (Gdx.files.absolute(CaveGame.GAME_FOLDER+"/saves/foremap.sav").exists() &&
+                Gdx.files.absolute(CaveGame.GAME_FOLDER+"/saves/backmap.sav").exists());
+    }
+
+}
-- 
2.29.2