From 9cb41d127063297432f768f7cb0f466b76921103 Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <matthias@gamezock.de>
Date: Mon, 18 Jan 2010 21:18:07 +0100
Subject: Give up tile based maps; maps look much better now

---
 src/de/gamezock/metacraft/data/Map.java | 116 +++++++++++++++++++++++++-------
 1 file changed, 92 insertions(+), 24 deletions(-)

(limited to 'src/de/gamezock/metacraft/data/Map.java')

diff --git a/src/de/gamezock/metacraft/data/Map.java b/src/de/gamezock/metacraft/data/Map.java
index c6d306b..79c591a 100644
--- a/src/de/gamezock/metacraft/data/Map.java
+++ b/src/de/gamezock/metacraft/data/Map.java
@@ -1,33 +1,105 @@
 package de.gamezock.metacraft.data;
 
+import java.nio.IntBuffer;
+import java.util.List;
+import java.util.Vector;
 
-public class Map {
-  Tile[][] tiles;
+import javax.vecmath.Point3f;
+import javax.vecmath.Vector3f;
+
+
+public abstract class Map {
   private float[][] heightmap;
   
+  private VertexBuffer vertexBuffer;
+  private IntBuffer indexBuffer;
+  
+	
+	private void setVertex(int x, int y, Point3f vertex) {
+    vertexBuffer.setVertex(getVertexIndex(x, y), vertex);
+  }
+  
+  private Point3f getVertex(int x, int y) {
+    return vertexBuffer.getVertex(getVertexIndex(x, y));
+  }
+  
+  private int getVertexIndex(int x, int y) {
+    if(y >= getHeight()) {
+      return getWidth()*getHeight() + (y-getHeight())*(getWidth()-1) + x;
+    } else {
+      return y*getWidth() + x;
+    }
+  }
+  
+  public VertexBuffer getVertexBuffer() {
+    return vertexBuffer;
+  }
   
-	public Map() {
-	  int width = 5;
-	  int height = 5;
+  public IntBuffer getIndexBuffer() {
+    return indexBuffer;
+  }
+	
+	protected void createMapData(float[][] heightmap) {
+	  this.heightmap = heightmap;
+	  
+	  List<IndexedTriangle> triangleData = new Vector<IndexedTriangle>();
 	  
-	  heightmap = new float[width][height];
-	  tiles = new Tile[width][height];
+	  vertexBuffer = new VertexBuffer(getWidth()*getHeight() + (getWidth()-1)*(getHeight()-1));
 	  
-	  for(int i = 0; i < width; ++i) {
-	    for(int j = 0; j < height; ++j) {
-	      //heightmap[i][j] = ((i-2)*(i-2)+(j-2)*(j-2))*0.5f;
-	      heightmap[i][j] = 0;
-	      tiles[i][j] = new Tile(new TestTile());
+	  for(int x = 0; x < getWidth(); ++x) {
+	    for(int y = 0; y < getHeight(); ++y) {
+	      setVertex(x, y, new Point3f(x, y, heightmap[x][y]));
+
+	      if(x > 0 && y > 0) {
+	        Point3f center = new Point3f();
+
+	        center.add(getVertex(x-1, y-1));
+	        center.add(getVertex(x, y-1));
+	        center.add(getVertex(x-1, y));
+	        center.add(getVertex(x, y));
+
+	        center.scale(0.25f);
+
+	        setVertex(x-1, getHeight()+y-1, center);
+	      }
 	    }
 	  }
-	}
-	
-	public Tile getTile(int x, int y) {
-	  return tiles[x][y];
-	}
-	
-	public float getTileHeight(int x, int y) {
-	  return heightmap[x][y];
+	  
+	  for(int x = 0; x < getWidth()-1; ++x) {
+	    for(int y = 0; y < getHeight()-1; ++y) {
+	      for(int i = 0; i < 4; ++i) {
+	        int i_1 = (i+1)%4;
+	        int i_2 = (i+2)%4;
+
+	        int v1 = getVertexIndex(x + i_1/2, y + i/2);
+	        int v2 = getVertexIndex(x, getHeight()+y);
+	        int v3 = getVertexIndex(x + i_2/2, y + i_1/2);
+
+	        triangleData.add(new IndexedTriangle(vertexBuffer, v1, v2, v3));
+	      }
+	    }
+	  }
+	  
+	  indexBuffer = IntBuffer.allocate(3 * triangleData.size());
+	  for(IndexedTriangle t : triangleData) {
+	    Vector3f normal = t.getNormal();
+      
+      for(int i = 0; i < 3; ++i) {
+        int index = t.getIndex(i);
+        
+        Vector3f vNormal = vertexBuffer.getNormal(index);
+        vNormal.add(normal);
+        vertexBuffer.setNormal(index, vNormal);
+        
+        indexBuffer.put(index);
+      }
+	  }
+	  
+	  for(int i = 0; i < vertexBuffer.getSize(); ++i) {
+      Vector3f normal = vertexBuffer.getNormal(i);
+      normal.normalize();
+      vertexBuffer.setNormal(i, normal);
+    }
 	}
 	
 	public int getWidth() {
@@ -37,8 +109,4 @@ public class Map {
 	public int getHeight() {
 	  return heightmap[0].length;
 	}
-	
-	public int getTileSize() {
-	  return tiles[0][0].getData().getSize();
-	}
 }
-- 
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