source: trunk/VUT/work/TestCullingTerrain/TerrainContentGenerator.cpp @ 82

Revision 82, 2.8 KB checked in by mattausch, 20 years ago (diff)

worked on the demos
Line 
1#include "TerrainContentGenerator.h"
2#include <windows.h>
3
4namespace Ogre {
5
6/*************************************************/
7/*         RayQueryExecutor implementation       */
8/*************************************************/
9
10//-----------------------------------------------------------------------
11RayQueryExecutor::RayQueryExecutor(SceneManager *sm)
12{
13        mRaySceneQuery = sm->createRayQuery(Ray());
14}
15//-----------------------------------------------------------------------
16RayQueryExecutor::~RayQueryExecutor()
17{
18        delete mRaySceneQuery;
19}
20//-----------------------------------------------------------------------
21bool RayQueryExecutor::executeRayQuery(Vector3 *result, const Vector3 &pos,
22                                                                           const Vector3 &dir)
23{
24        return executeRayQuery(result, Ray(pos, dir));
25}
26//-----------------------------------------------------------------------
27bool RayQueryExecutor::executeRayQuery(Vector3 *result, const Ray &ray)
28{
29    mRaySceneQuery->setRay(ray);
30
31    // Perform the scene query
32    RaySceneQueryResult &queryResult = mRaySceneQuery->execute();
33    RaySceneQueryResult::iterator it = queryResult.begin();
34
35        if (it != queryResult.end() && it->worldFragment)
36        {
37                SceneQuery::WorldFragment* wf = it->worldFragment;
38
39                *result = wf->singleIntersection;
40                return true;
41        }
42
43        return false;
44}
45
46/*******************************************************/
47/*     TerrainContentGenerator implementation          */
48/*******************************************************/
49
50//-----------------------------------------------------------------------
51TerrainContentGenerator::TerrainContentGenerator(SceneManager *sm):
52SceneContentGenerator(sm), mMaxHeight(100)
53{
54        mMinPos = Vector3(0.0f, 5000.0f, 0.0f);
55        mMaxPos = Vector3(1000.0f, 5000.0f, 1000.0f);
56
57        mMinAngle = Vector3(0.0f, 0.0f, 0.0f);
58        mMaxAngle = Vector3(360.0f, 0.0f, 0.0f);
59
60        mRayQueryExecutor = new RayQueryExecutor(sm);
61}
62//-----------------------------------------------------------------------
63TerrainContentGenerator::~TerrainContentGenerator()
64{
65        delete mRayQueryExecutor;
66}
67//-----------------------------------------------------------------------
68SceneNode *TerrainContentGenerator::GenerateSceneObject(const Vector3 &position,
69                                         const Vector3 &rotation, const String& objName)
70{
71        Vector3 queryResult;
72       
73        if (mRayQueryExecutor->executeRayQuery(&queryResult, position, Vector3::NEGATIVE_UNIT_Y))
74        {
75                // reject if height is too high
76                if(queryResult.y < mMaxHeight)
77                {
78                        return SceneContentGenerator::GenerateSceneObject(queryResult, rotation, objName);
79                }
80        }
81       
82        return NULL;
83}
84//-----------------------------------------------------------------------
85void TerrainContentGenerator::SetMaxHeight(Real maxHeight)
86{
87        mMaxHeight = maxHeight;
88}
89
90} // namespace Ogre
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