Switched to java 8, added ground factory

core/build.gradle

@@ -1,6 +1,6 @@
 apply plugin: "java"
 
-sourceCompatibility = 1.7
+sourceCompatibility = 1.8
 [compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
 
 sourceSets {

core/src/se/cookery/world/Block.java

@@ -1,4 +1,43 @@
 package se.cookery.world;
 
+/**
+ * Class representing a block of the world.
+ *
+ * The class contains items, land type and world height information
+ */
 public class Block {
+    /**
+     * The size of a block in units of squares. The block is a square with size BLOCK_SIZE x BLOCK_SIZE.
+     **/
+    public static final int BLOCK_SIZE = 20;
+
+    private long offset_x = 0;
+    private long offset_y = 0;
+    private byte[][] height = new byte[BLOCK_SIZE][BLOCK_SIZE];
+    private byte[][] landType = new byte[BLOCK_SIZE][BLOCK_SIZE];
+
+
+    public long getBlockStartX(){
+        return offset_x;
+    }
+
+    public long getBlockStartY(){
+        return offset_y;
+    }
+
+    public long getBlockEndX(){
+        return offset_x + BLOCK_SIZE;
+    }
+
+    public long getBlockEndY(){
+        return offset_y + BLOCK_SIZE;
+    }
+
+    public int getHeight(long x, long y) {
+        return height[(int) Math.abs(x-offset_x)][(int) Math.abs(y-offset_y)];
+    }
+
+    public int getGround(long x, long y) {
+        return landType[(int) Math.abs(x-offset_x)][(int) Math.abs(y-offset_y)];
+    }
 }

core/src/se/cookery/world/Ground.java

@@ -0,0 +1,8 @@
+package se.cookery.world;
+
+/**
+ * Class representing a ground material type.
+ */
+public class Ground {
+    private int id;
+}

core/src/se/cookery/world/GroundFactory.java

@@ -0,0 +1,18 @@
+package se.cookery.world;
+
+import java.security.InvalidParameterException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class GroundFactory {
+    public static Map<Integer, Ground> groundTypes = new HashMap<>();
+
+
+    public static Ground get(int id) {
+        if (0 > id || id > groundTypes.size())
+            throw new InvalidParameterException("Provided id " + id + " is not associated dwith a ground type.");
+        return groundTypes.get(id);
+    }
+}

core/src/se/cookery/world/World.java

@@ -1,32 +1,21 @@
 package se.cookery.world;
 
+import se.cookery.world.gen.WorldGenerator;
+
 import java.util.Map;
 import java.util.TreeMap;
 
 public class World {
-    // Constants
-
-    /**
-     * The size in a virtual coordinate system unit. The square is a square with size BLOCK_SIZE x BLOCK_SIZE.
-     **/
-    public static final int SQUARE_SIZE = 1;
-
-    /**
-     * The size of a block in units of squares. The block is a square with size BLOCK_SIZE x BLOCK_SIZE.
-     **/
-    public static final int BLOCK_SIZE = 20;
-
-    // Variables
-
     private Map<Long, Map<Long, Block>> worldBlocks = new TreeMap<>();
+    private WorldGenerator generator;
 
 
-    public World() {
-
+    public World(WorldGenerator generator) {
+        this.generator = generator;
     }
 
     /**
-     * @return true if the block coordiante exists, otherwise false
+     * @return true if the block coordinate exists, otherwise false
      */
     public boolean blockExists(long x, long y) {
         return worldBlocks.get(x) != null && worldBlocks.get(x).get(y) != null;
@@ -37,6 +26,8 @@ public class World {
      * not exist then a new block will be generated for the requested coordinate
      */
     public Block getBlock(long x, long y) {
+        if (!blockExists(x, y))
+            generator.generateBlock(x, y);
         return null;
     }
 }

core/src/se/cookery/world/gen/GrassLandWorldGenerator.java

@@ -0,0 +1,11 @@
+package se.cookery.world.gen;
+
+import se.cookery.world.Block;
+
+public class GrassLandWorldGenerator implements WorldGenerator {
+
+    @Override
+    public Block generateBlock(long x, long y) {
+        return null;
+    }
+}

core/src/se/cookery/world/gen/WorldGenerator.java

@@ -0,0 +1,19 @@
+package se.cookery.world.gen;
+
+import se.cookery.world.Block;
+
+/**
+ * Interface representing a world generation class.
+ *
+ * A class that implements this interface can be used
+ * to generate a static or dynamic world.
+ */
+public interface WorldGenerator {
+
+    /**
+     * Method to generate a block with the provided coordinates,
+     * calling this method with the same parameters will always
+     * return a new Block object but with the same values.
+     */
+    Block generateBlock(long x, long y);
+}

core/test/se/cookery/world/GroundFactoryTest.java

@@ -0,0 +1,21 @@
+package se.cookery.world;
+
+import org.junit.jupiter.api.Test;
+
+import java.security.InvalidParameterException;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class GroundFactoryTest {
+
+    @Test
+    void get() {
+        assertThrows(InvalidParameterException.class, () -> {
+            GroundFactory.get(-1);
+        });
+
+        assertThrows(InvalidParameterException.class, () -> {
+            GroundFactory.get(500);
+        });
+    }
+}

core/test/se/cookery/world/WorldTest.java

@@ -1,18 +1,27 @@
 package se.cookery.world;
 
 import org.junit.jupiter.api.Test;
+import se.cookery.world.gen.GrassLandWorldGenerator;
 
-import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.*;
 
 public class WorldTest {
 
     @Test
     public void blockExists() {
-        World w = new World();
-        assertNull(w.getBlock(0, 0));
+        World w = new World(new GrassLandWorldGenerator());
+        assertFalse(w.blockExists(0, 0));
+        assertFalse(w.blockExists(Long.MAX_VALUE, Long.MAX_VALUE));
+        assertFalse(w.blockExists(Long.MIN_VALUE, Long.MAX_VALUE));
+        assertFalse(w.blockExists(Long.MAX_VALUE, Long.MIN_VALUE));
+        assertFalse(w.blockExists(Long.MIN_VALUE, Long.MIN_VALUE));
     }
 
     @Test
     public void getBlock() {
+        World w = new World(new GrassLandWorldGenerator());
+        assertFalse(w.blockExists(0, 0));
+        assertNotNull(w.getBlock(0,0));
+        assertTrue(w.blockExists(0, 0));
     }
 }

core/test/se/cookery/world/gen/GrassLandWorldGeneratorTest.java

@@ -0,0 +1,13 @@
+package se.cookery.world.gen;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class GrassLandWorldGeneratorTest {
+
+    @Test
+    void generateBlock() {
+
+    }
+}