Changeset 55 for trunk/VUT/OcclusionCullingSceneManager/TestCullingTerrain/TerrainContentGenerator.cpp

Timestamp:

04/21/05 19:33:56 (19 years ago)

Author:

mattausch

Message:

added TerrainContentGenerator?

File:

• trunk/VUT/OcclusionCullingSceneManager/TestCullingTerrain/TerrainContentGenerator.cpp (modified) (1 diff)

trunk/VUT/OcclusionCullingSceneManager/TestCullingTerrain/TerrainContentGenerator.cpp

@@ -5 +5 @@
         Creates content for the terrain,
 */
-
 #include "TerrainContentGenerator.h"
 
 //-----------------------------------------------------------------------
-TerrainContentGenerator::TerrainContentGenerator( void )
+TerrainContentGenerator::TerrainContentGenerator( SceneManager *sm, RayQueryExecutor *rayQueryEx )
 {
+        mSceneMgr = sm;
+        mRayQueryExecutor = rayQueryEx;
+
+        mMinTranslation = Vector3(-70.0f, -70.0f, 0.0f);
+        mMaxTranslation = Vector3(70.0f, 70.0f, 600.0f);
+
+        mMinAngle = 0;
+        mMaxAngle = 360;
+
+        mCount = 0;
 }
+//-----------------------------------------------------------------------
+void TerrainContentGenerator::generateScene( int numObjects )
+{
+        srand (time (0));
+        
+        Vector3 rotationRatio;
+        Vector3 translationRatio;
 
+        for(int i=0; i < numObjects; i++)
+        {
+                rotationRatio.x = rand() / (float) RAND_MAX;
+                rotationRatio.y = rand() / (float) RAND_MAX;
+                rotationRatio.z = rand() / (float) RAND_MAX;
+
+                translationRatio.x = rand() / (float) RAND_MAX;
+                translationRatio.y = rand() / (float) RAND_MAX;
+                translationRatio.z = rand() / (float) RAND_MAX;
+
+                generateSceneObject(translationRatio, rotationRatio, i, "sphere.mesh");
+        }
+}
+//-----------------------------------------------------------------------
+void TerrainContentGenerator::generateSceneObject(const Vector3 &translationRatio, 
+                                         const Vector3 &rotationRatio, const int idx, const String& entName)
+{
+        // Setup the ray scene query
+        Real rotation = mMinAngle + rotationRatio.x * (mMaxAngle - mMinAngle);
+        Vector3 translation = mMinTranslation + translationRatio * (mMaxTranslation - mMinTranslation);
+
+        translation.y = 5000;
+    
+        Vector3 queryResult;
+
+        if(mRayQueryExecutor->executeRayQuery(&queryResult, translation, Vector3::NEGATIVE_UNIT_Y))
+        {
+                char name[16];
+                sprintf( name, "%s%d", entName.c_str(), mCount++);
+
+                Entity *ent = mSceneMgr->createEntity(name, entName);
+                SceneNode *currentObject = mSceneMgr->getRootSceneNode( )->createChildSceneNode( String(name) + "Node", queryResult);
+                currentObject->attachObject(ent);
+                currentObject->setScale(0.1f, 0.1f, 0.1f);
+        }
+}
+//-----------------------------------------------------------------------
+RayQueryExecutor::RayQueryExecutor( SceneManager *sm )
+{
+        mRaySceneQuery = sm->createRayQuery(Ray());
+}
+//-----------------------------------------------------------------------
+RayQueryExecutor::~RayQueryExecutor()
+{
+        delete mRaySceneQuery;
+}
+//-----------------------------------------------------------------------
+bool RayQueryExecutor::executeRayQuery( Vector3 *result, const Vector3 &pos, const Vector3 &dir )
+{
+        Ray ray(pos, dir);
+    mRaySceneQuery->setRay(ray);
+
+    // Perform the scene query
+    RaySceneQueryResult &queryResult = mRaySceneQuery->execute();
+    RaySceneQueryResult::iterator it = queryResult.begin( );
+
+        if (it != queryResult.end() && it->worldFragment)
+        {
+                SceneQuery::WorldFragment* wf = it->worldFragment;
+
+                *result = wf->singleIntersection; 
+                return true;
+        }
+
+        return false;
+}