From b9cc8e8871de73bf70406913f18b446a1fc723e8 Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <matthias@gamezock.de>
Date: Tue, 12 Jan 2010 13:01:59 +0100
Subject: Generate triangle data from tile heightmaps

---
 src/de/gamezock/metacraft/ui/Renderer.java | 73 +++++++-----------------------
 1 file changed, 17 insertions(+), 56 deletions(-)

(limited to 'src/de/gamezock/metacraft/ui/Renderer.java')

diff --git a/src/de/gamezock/metacraft/ui/Renderer.java b/src/de/gamezock/metacraft/ui/Renderer.java
index cea0480..3213a53 100644
--- a/src/de/gamezock/metacraft/ui/Renderer.java
+++ b/src/de/gamezock/metacraft/ui/Renderer.java
@@ -6,7 +6,7 @@ import javax.vecmath.Point3f;
 import javax.vecmath.Vector3f;
 
 import de.gamezock.metacraft.data.Map;
-import de.gamezock.metacraft.data.Tile;
+import de.gamezock.metacraft.data.Triangle;
 
 public class Renderer {
   private Main main;
@@ -15,52 +15,14 @@ public class Renderer {
     this.main = main;
   }
   
-  private void renderTileQuad(GL2 gl, Tile tile, int x, int y) {
-    float[][] heightmap = tile.getData().getHeightmap();
-    
-    float[] h = new float[4];
-    h[0] = heightmap[x][y];
-    h[1] = heightmap[x+1][y];
-    h[2] = heightmap[x+1][y+1];
-    h[3] = heightmap[x][y+1];
-    
-    float center = (h[0] + h[1] + h[2] + h[3]) / 4;
-    
-    for(int i = 0; i < 4; ++i) {
-      int i_1 = (i+1)%4;
-      int i_2 = (i+2)%4;
-      
-      Point3f v1 = new Point3f(x + i_1/2, y + i/2, h[i]);
-      Point3f v2 = new Point3f(x+0.5f, y+0.5f, center);
-      Point3f v3 = new Point3f(x + i_2/2, y + i_1/2, h[i_1]);
-      
-      Vector3f edge1 = new Vector3f(), edge2 = new Vector3f();
+  private void renderTriangle(GL2 gl, Triangle t) {
+    for(int i = 0; i < 3; ++i) {
+      Point3f v = t.getVertex(i);
+      Vector3f n = t.getNormal(i);
       
-      edge1.sub(v1, v2);
-      edge2.sub(v3, v2);
-      
-      Vector3f normal = new Vector3f();
-      normal.cross(edge1, edge2);
-      normal.normalize();
-      
-      gl.glColor3f(1, 1, 1);
-      gl.glNormal3f(normal.x, normal.y, normal.z);
-      gl.glVertex3f(v1.x, v1.y, v1.z);
-      gl.glVertex3f(v2.x, v2.y, v2.z);
-      gl.glVertex3f(v3.x, v3.y, v3.z);
-    }
-  }
-  
-  private void renderTile(GL2 gl, Tile tile) {
-    gl.glBegin(GL.GL_TRIANGLES);
-    
-    for(int i = 0; i < tile.getData().getSize(); ++i) {
-      for(int j = 0; j < tile.getData().getSize(); ++j) {
-        renderTileQuad(gl, tile, i, j);
-      }
+      gl.glNormal3f(n.x, n.y, n.z);
+      gl.glVertex3f(v.x, v.y, v.z);
     }
-    
-    gl.glEnd();
   }
   
   public void render(GL2 gl) {
@@ -69,20 +31,19 @@ public class Renderer {
     Map currentMap = main.getCurrentMap();
     
     gl.glPushMatrix();
-    gl.glRotatef((System.currentTimeMillis()%3600)/10.0f, 0, 0, 1);
+    gl.glRotatef((System.currentTimeMillis()%9000)/25.0f, 0, 0, 1);
+    gl.glTranslatef(-20, -20, 0);
+    
+    gl.glBegin(GL.GL_TRIANGLES);
+    
+    gl.glColor3f(1, 1, 1);
     
-    for(int i = 0; i < currentMap.getWidth(); ++i) {
-      for(int j = 0; j < currentMap.getHeight(); ++j) {
-        gl.glPushMatrix();
-        gl.glTranslatef(i*currentMap.getTileSize(), j*currentMap.getTileSize(), currentMap.getTileHeight(i, j));
-        
-        renderTile(gl, currentMap.getTile(i, j));
-        
-        gl.glPopMatrix();
-      }
+    for(Triangle t : currentMap.getTriangleData()) {
+      renderTriangle(gl, t);
     }
     
+    gl.glEnd();
+    
     gl.glPopMatrix();
   }
-
 }
-- 
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