vtm-gdx-poi3d module (#600)

vtm-gdx-poi3d/src/org/oscim/gdx/poi3d/MapCamera.java

@@ -0,0 +1,70 @@
+package org.oscim.gdx.poi3d;
+
+import com.badlogic.gdx.graphics.Camera;
+import com.badlogic.gdx.math.Matrix4;
+
+import org.oscim.core.MapPosition;
+import org.oscim.core.Tile;
+import org.oscim.map.Map;
+import org.oscim.renderer.GLViewport;
+
+public class MapCamera extends Camera {
+
+    private final Map mMap;
+
+    public MapCamera(Map map) {
+        mMap = map;
+
+        this.near = 1;
+        this.far = 8;
+    }
+
+    MapPosition mMapPosition = new MapPosition();
+
+    public void setPosition(MapPosition pos) {
+        mMapPosition.copy(pos);
+
+        this.viewportWidth = mMap.getWidth();
+        this.viewportHeight = mMap.getHeight();
+    }
+
+    public void setMapPosition(double x, double y, double scale) {
+        mMapPosition.setScale(scale);
+        mMapPosition.x = x;
+        mMapPosition.y = y;
+    }
+
+    public void update(GLViewport v) {
+        double scale = (v.pos.scale * Tile.SIZE);
+
+        float x = (float) ((mMapPosition.x - v.pos.x) * scale);
+        float y = (float) ((mMapPosition.y - v.pos.y) * scale);
+        float z = (float) (v.pos.scale / mMapPosition.scale);
+
+        v.proj.get(projection.getValues());
+        v.mvp.setTransScale(x, y, z);
+        v.mvp.setValue(10, z);
+        v.mvp.multiplyLhs(v.view);
+        v.mvp.get(view.getValues());
+
+        combined.set(projection);
+
+        Matrix4.mul(combined.val, view.val);
+
+        //if (updateFrustum) {
+        invProjectionView.set(combined);
+        Matrix4.inv(invProjectionView.val);
+        frustum.update(invProjectionView);
+        //}
+    }
+
+    @Override
+    public void update() {
+    }
+
+    @Override
+    public void update(boolean updateFrustum) {
+
+    }
+
+}