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-rw-r--r--src/de/gamezock/metacraft/data/TestTile.java114
1 files changed, 109 insertions, 5 deletions
diff --git a/src/de/gamezock/metacraft/data/TestTile.java b/src/de/gamezock/metacraft/data/TestTile.java
index 229f425..0516cec 100644
--- a/src/de/gamezock/metacraft/data/TestTile.java
+++ b/src/de/gamezock/metacraft/data/TestTile.java
@@ -1,18 +1,112 @@
package de.gamezock.metacraft.data;
+import java.nio.IntBuffer;
+import java.util.List;
+import java.util.Vector;
+
+import javax.vecmath.Point3f;
+import javax.vecmath.Vector3f;
+
public class TestTile implements TileData {
- float[][] heightmap;
+ private List<IndexedTriangle> triangleData;
+ private float[][] heightmap;
+ private VertexBuffer vertexBuffer;
+ private IntBuffer indexBuffer;
+
public TestTile() {
- heightmap = new float[getSize()][getSize()];
+ heightmap = new float[getSize()+1][getSize()+1];
- for(int i = 0; i < getSize(); ++i) {
- for(int j = 0; j < getSize(); ++j) {
- heightmap[i][j] = 0.2f * ((i+j)%2);
+ for(int i = 0; i <= getSize(); ++i) {
+ for(int j = 0; j <= getSize(); ++j) {
+ heightmap[i][j] = ((i-4)*(i-4)+(j-4)*(j-4))*0.05f;
}
}
+
+ createTileData();
+ }
+
+ 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 > getSize()) {
+ return (getSize()+1)*(getSize()+1) + (y-getSize()-1)*getSize() + x;
+ } else {
+ return y*(getSize()+1) + x;
+ }
}
+
+ private void createTileData() {
+ triangleData = new Vector<IndexedTriangle>();
+
+ vertexBuffer = new VertexBuffer((getSize()+1)*(getSize()+1) + getSize()*getSize());
+
+ for(int x = 0; x < heightmap.length; ++x) {
+ for(int y = 0; y < heightmap[x].length; ++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, y+getSize(), center);
+ }
+ }
+ }
+
+ for(int x = 0; x < heightmap.length-1; ++x) {
+ for(int y = 0; y < heightmap[x].length-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, y+getSize()+1);
+ int v3 = getVertexIndex(x + i_2/2, y + i_1/2);
+
+ triangleData.add(new IndexedTriangle(vertexBuffer, v1, v2, v3));
+ }
+ }
+ }
+
+ 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);
+ }
+ }
+
+ for(int i = 0; i < vertexBuffer.getSize(); ++i) {
+ Vector3f normal = vertexBuffer.getNormal(i);
+ normal.normalize();
+ vertexBuffer.setNormal(i, normal);
+ }
+
+ indexBuffer = IntBuffer.allocate(3 * triangleData.size());
+ for(IndexedTriangle t : triangleData) {
+ for(int i = 0; i < 3; ++i) {
+ indexBuffer.put(t.getIndex(i));
+ }
+ }
+ }
+
@Override
public int getSize() {
return 8;
@@ -27,4 +121,14 @@ public class TestTile implements TileData {
public TileType getType() {
return new TileType();
}
+
+ @Override
+ public List<IndexedTriangle> getTriangles() {
+ return triangleData;
+ }
+
+ @Override
+ public IntBuffer getIndexBuffer() {
+ return indexBuffer;
+ }
}