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package de.gamezock.metacraft.ui;
import java.nio.IntBuffer;
import java.util.List;
import javax.media.opengl.GL;
import javax.media.opengl.GL2;
import de.gamezock.metacraft.data.IndexedTriangle;
import de.gamezock.metacraft.data.Map;
import de.gamezock.metacraft.data.Tile;
import de.gamezock.metacraft.data.VertexBuffer;
public class Renderer {
private Main main;
public Renderer(Main main) {
this.main = main;
}
private void renderTile(GL2 gl, Tile tile) {
List<IndexedTriangle> triangles = tile.getData().getTriangles();
if(triangles.isEmpty())
return;
VertexBuffer buffer = triangles.get(0).getBuffer();
gl.glInterleavedArrays(GL2.GL_N3F_V3F, 0, buffer.getBuffer().clear());
IntBuffer indexBuffer = tile.getData().getIndexBuffer();
indexBuffer.clear();
gl.glDrawElements(GL.GL_TRIANGLES, indexBuffer.capacity(), GL2.GL_UNSIGNED_INT, indexBuffer);
}
public void render(GL2 gl) {
gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
Map currentMap = main.getCurrentMap();
gl.glEnable(GL2.GL_VERTEX_ARRAY);
gl.glEnable(GL2.GL_NORMAL_ARRAY);
gl.glPushMatrix();
gl.glRotatef((System.currentTimeMillis()%9000)/25.0f, 0, 0, 1);
gl.glTranslatef(-20, -20, 0);
gl.glColor3f(1, 1, 1);
for(int x = 0; x < currentMap.getWidth(); ++x) {
for(int y = 0; y < currentMap.getHeight(); ++y) {
gl.glPushMatrix();
gl.glTranslatef(currentMap.getTileSize()*x, currentMap.getTileSize()*y, currentMap.getTileHeight(x, y));
renderTile(gl, currentMap.getTile(x, y));
gl.glPopMatrix();
}
}
gl.glPopMatrix();
}
}
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