From 7950da78d82cdace13ab115483417657df1a2456 Mon Sep 17 00:00:00 2001
From: Ziver Koc <ziver@koc.se>
Date: Sun, 19 Apr 2020 14:06:03 +0200
Subject: [PATCH] Start of custom terrain impl

---
 core/src/se/cookery/CookeryClient.java        | 31 ++++----
 core/src/se/cookery/gfx/character/Player.java | 28 +++++++
 .../se/cookery/gfx/terrain/TerrainMesh.java   | 76 ++++++++++++++++---
 .../src/se/cookery/gfx/util/GeometryUtil.java | 16 ++++
 .../src/se/cookery/gfx/util/MaterialUtil.java | 15 ++++
 5 files changed, 140 insertions(+), 26 deletions(-)
 create mode 100644 core/src/se/cookery/gfx/character/Player.java
 create mode 100644 core/src/se/cookery/gfx/util/GeometryUtil.java
 create mode 100644 core/src/se/cookery/gfx/util/MaterialUtil.java

diff --git a/core/src/se/cookery/CookeryClient.java b/core/src/se/cookery/CookeryClient.java
index 8567160..6811b40 100644
--- a/core/src/se/cookery/CookeryClient.java
+++ b/core/src/se/cookery/CookeryClient.java
@@ -1,26 +1,24 @@
 package se.cookery;
 
 import com.jme3.app.SimpleApplication;
-import com.jme3.material.Material;
 import com.jme3.math.ColorRGBA;
-import com.jme3.math.Quaternion;
 import com.jme3.math.Vector3f;
 import com.jme3.scene.Geometry;
-import com.jme3.scene.shape.Box;
-import com.jme3.terrain.geomipmap.TerrainLodControl;
 import com.jme3.terrain.geomipmap.TerrainQuad;
 import se.cookery.core.world.Block;
 import se.cookery.core.world.gen.GrassLandWorldGenerator;
+import se.cookery.gfx.character.Player;
+import se.cookery.gfx.terrain.TerrainMesh;
+import se.cookery.gfx.util.GeometryUtil;
+import se.cookery.gfx.util.MaterialUtil;
 import se.cookery.gfx.util.WireFrameProcessor;
-import zutil.log.CompactLogFormatter;
-import zutil.log.LogUtil;
 
 public class CookeryClient extends SimpleApplication {
     private TerrainQuad terrain;
 
     @Override
     public void simpleInitApp() {
-        flyCam.setMoveSpeed(30);
+        flyCam.setMoveSpeed(15);
         cam.setLocation(new Vector3f(0,20,-10));
         cam.lookAt(new Vector3f(0f,0f,0f), Vector3f.UNIT_Z);
 
@@ -34,7 +32,7 @@ public class CookeryClient extends SimpleApplication {
          */
 
         Block block = new GrassLandWorldGenerator().generateBlock(0, 0);
-        float[] heightMap = new float[Block.BLOCK_SIZE*Block.BLOCK_SIZE];
+        /*float[] heightMap = new float[Block.BLOCK_SIZE*Block.BLOCK_SIZE];
 
         for (int x=0; x<Block.BLOCK_SIZE; x++) {
             for (int y=0; y<Block.BLOCK_SIZE; y++) {
@@ -47,15 +45,18 @@ public class CookeryClient extends SimpleApplication {
         Material green = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
         green.setColor("Color", ColorRGBA.Green);
         terrain.setMaterial(green);
+        rootNode.attachChild(terrain);*/
+
+        Geometry terrain = new Geometry("terrain", new TerrainMesh(1, 1, 1, 1));
+        terrain.setMaterial(MaterialUtil.createMaterial(assetManager, ColorRGBA.Green));
         rootNode.attachChild(terrain);
 
-        Geometry box = new Geometry("Box", new Box(1,1,1));
-        Material red = new Material(assetManager,
-                "Common/MatDefs/Misc/Unshaded.j3md");
-        red.setColor("Color", ColorRGBA.Red);
-        box.setMaterial(red);
-        box.setLocalTranslation(0.5f, 0.5f, 0.5f);
-        rootNode.attachChild(box);
+//        Geometry box = GeometryUtil.createBox(assetManager, 1f, 1f, 1f, ColorRGBA.Red);
+//        box.setLocalTranslation(box.getModelBound().getCenter());
+//        rootNode.attachChild(box);
+
+        Player player = new Player(assetManager);
+        rootNode.attachChild(player.getGfxNode());
 
         // Wireframe mode
         viewPort.addProcessor(new WireFrameProcessor(assetManager));
diff --git a/core/src/se/cookery/gfx/character/Player.java b/core/src/se/cookery/gfx/character/Player.java
new file mode 100644
index 0000000..9b18364
--- /dev/null
+++ b/core/src/se/cookery/gfx/character/Player.java
@@ -0,0 +1,28 @@
+package se.cookery.gfx.character;
+
+import com.jme3.asset.AssetManager;
+import com.jme3.material.Material;
+import com.jme3.math.ColorRGBA;
+import com.jme3.scene.Geometry;
+import com.jme3.scene.Node;
+import com.jme3.scene.Spatial;
+import com.jme3.scene.shape.Box;
+import se.cookery.gfx.util.GeometryUtil;
+
+public class Player {
+    private Node playerNode = new Node();
+
+    public Player(AssetManager assetManager) {
+        Geometry box = GeometryUtil.createBox(assetManager, 0.5f,0.7f,0.5f, ColorRGBA.Red);
+        box.setLocalTranslation(0.25f, 0.7f, 0.25f);
+        playerNode.attachChild(box);
+    }
+
+    public void updatePlayer() {
+
+    }
+
+    public Spatial getGfxNode() {
+        return playerNode;
+    }
+}
diff --git a/core/src/se/cookery/gfx/terrain/TerrainMesh.java b/core/src/se/cookery/gfx/terrain/TerrainMesh.java
index cd47c0c..abbbdef 100644
--- a/core/src/se/cookery/gfx/terrain/TerrainMesh.java
+++ b/core/src/se/cookery/gfx/terrain/TerrainMesh.java
@@ -1,24 +1,78 @@
 package se.cookery.gfx.terrain;
 
+import com.jme3.export.InputCapsule;
+import com.jme3.export.JmeExporter;
+import com.jme3.export.JmeImporter;
+import com.jme3.export.OutputCapsule;
+import com.jme3.scene.Mesh;
+import com.jme3.scene.VertexBuffer;
+
 import java.io.File;
+import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
 
 
 /**
- * This terrain generator generates a simple terrain, similar to the basic
- * terrain used in my previous tutorials. The difference here is in the shader
- * programs, with the use of the "flat" type qualifier when passing the colour
- * from vertex shader to fragment shader. This stops the colour being
- * interpolated over each triangle, and instead the entire triangle uses the
- * colour value from just one of the vertices, the "provoking" vertex. This is
- * by default the last specified vertex of the triangle, but it's possible to
- * make it use the first vertex instead.
- *
- * @author Karl
+ * Class will generate a terrain mesh from a TerrainMap
  */
-public class TerrainMesh {
+public class TerrainMesh extends Mesh {
+
+    private float width;
+    private float height;
+    private int widthCount;
+    private int heightCount;
+
+    /**
+     * Created a terrain Mesh with the given sizes.
+     *
+     * @param width         is the width of a single square
+     * @param height        is the height of a single square
+     * @param widthCount    the number of squares that make up the whole terrain
+     * @param heightCount   the number of squares that make up the whole terrain
+     */
+    public TerrainMesh(float width, float height, int widthCount, int heightCount){
+        this.width = 1;
+        this.height = 1;
+
+        updateGeometry();
+    }
 
 
+    protected void updateGeometry() {
+        // Setup vertexes
+        setBuffer(VertexBuffer.Type.Position, 3, new float[]{
+             // x,     y,      z
+                0,     0,      0,
+                0,     0, height,
+                width, 0, height,
+                width, 0,      0,
+        });
 
+        // Setup planes
+        setBuffer(VertexBuffer.Type.Index, 3, new short[]{
+                0, 1, 3,
+                3, 1, 2
+        });
+
+        // Setup texture UV coordinates
+        setBuffer(VertexBuffer.Type.TexCoord, 2, new float[]{
+             // u, v
+                0, 0,
+                1, 0,
+                1, 1,
+                0, 1
+        });
+
+        // Setup light normals
+        setBuffer(VertexBuffer.Type.Normal, 3, new float[]{
+                0, 0, 1,
+                0, 0, 1,
+                0, 0, 1,
+                0, 0, 1
+        });
+
+        updateBound();
+        setStatic();
+    }
 }
\ No newline at end of file
diff --git a/core/src/se/cookery/gfx/util/GeometryUtil.java b/core/src/se/cookery/gfx/util/GeometryUtil.java
new file mode 100644
index 0000000..0eed071
--- /dev/null
+++ b/core/src/se/cookery/gfx/util/GeometryUtil.java
@@ -0,0 +1,16 @@
+package se.cookery.gfx.util;
+
+import com.jme3.asset.AssetManager;
+import com.jme3.math.ColorRGBA;
+import com.jme3.scene.Geometry;
+import com.jme3.scene.shape.Box;
+
+public class GeometryUtil {
+
+    public static Geometry createBox(AssetManager assetManager, float x, float y, float z, ColorRGBA color) {
+        Geometry box = new Geometry("Box", new Box(x,y,z));
+        box.setMaterial(MaterialUtil.createMaterial(assetManager, color));
+
+        return box;
+    }
+}
diff --git a/core/src/se/cookery/gfx/util/MaterialUtil.java b/core/src/se/cookery/gfx/util/MaterialUtil.java
new file mode 100644
index 0000000..49df9e2
--- /dev/null
+++ b/core/src/se/cookery/gfx/util/MaterialUtil.java
@@ -0,0 +1,15 @@
+package se.cookery.gfx.util;
+
+import com.jme3.asset.AssetManager;
+import com.jme3.material.Material;
+import com.jme3.math.ColorRGBA;
+
+public class MaterialUtil {
+
+    public static Material createMaterial(AssetManager assetManager, ColorRGBA color) {
+        Material basicMaterial = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
+        basicMaterial.setColor("Color", color);
+
+        return basicMaterial;
+    }
+}