Ogre 天龙八部地形管理器

01

void

TLBBTerrain::createManualMesh()

02

{

03

MeshPtr mesh = MeshManager::getSingleton().createManual(

"mymesh"

,

04

ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);

05

SubMesh* submesh = mesh->createSubMesh();

06

submesh->useSharedVertices =

false

;

07

// 顶点缓存

08

submesh->vertexData =

new

VertexData();

09

submesh->vertexData->vertexStart = 0;

10

unsigned

int

nCount = m_xSize * m_zSize * 4;

11

submesh->vertexData->vertexCount = nCount;

12

VertexDeclaration* decl = submesh->vertexData->vertexDeclaration;

13

VertexBufferBinding* bind = submesh->vertexData->vertexBufferBinding;

14

size_t

offset = 0;

15

decl->addElement(MAIN_BINDING, offset, VET_FLOAT3, VES_POSITION);

16

offset += VertexElement::getTypeSize(VET_FLOAT3);

17

decl->addElement(MAIN_BINDING, offset, VET_FLOAT3, VES_NORMAL);

18

offset += VertexElement::getTypeSize(VET_FLOAT3);

19

decl->addElement(MAIN_BINDING, offset, VET_FLOAT2, VES_TEXTURE_COORDINATES, 0);

20

offset += VertexElement::getTypeSize(VET_FLOAT2);

21

decl->addElement(MAIN_BINDING, offset, VET_FLOAT2, VES_TEXTURE_COORDINATES, 1);

22

offset += VertexElement::getTypeSize(VET_FLOAT2);

23

decl->addElement(MAIN_BINDING, offset, VET_FLOAT2, VES_TEXTURE_COORDINATES, 2);

24

offset += VertexElement::getTypeSize(VET_FLOAT2);

25

HardwareVertexBufferSharedPtr vertexBuffer = HardwareBufferManager::getSingleton().createVertexBuffer(

26

decl->getVertexSize(MAIN_BINDING), nCount, HardwareBuffer::HBU_STATIC_WRITE_ONLY);

27

bind->setBinding(MAIN_BINDING, vertexBuffer);

28

float

* pBase =

static_cast

<

float

*>(vertexBuffer->lock(HardwareBuffer::HBL_DISCARD));

29

TexureInfo info;

30

for

(

int

j = 0; j < m_zSize; ++j)

31

{

32

for

(

int

i = 0; i < m_xSize; ++i)

33

{

34

info = handleTexture(i, j);

35

// 点0

36

fillVertexData(i, j, pBase, info.firstleft, info.firsttop, info.secondleft, info.secondtop);

37

pBase += 12;

38

// 点1

39

fillVertexData(i, j+1, pBase, info.firstleft, info.firstbottom, info.secondleft, info.secondbottom);

40

pBase += 12;

41

// 点2

42

fillVertexData(i+1, j+1, pBase, info.firstright, info.firstbottom, info.secondright, info.secondbottom);

43

pBase += 12;

44

// 点3

45

fillVertexData(i+1, j, pBase, info.firstright, info.firsttop, info.secondright, info.secondtop);

46

pBase += 12;

47

}

48

}

49

vertexBuffer->unlock();

50

HardwareIndexBufferSharedPtr indexBuffer =

51

HardwareBufferManager::getSingleton().createIndexBuffer(

52

HardwareIndexBuffer::IT_32BIT,

53

m_xSize * m_zSize * 6,

54

HardwareBuffer::HBU_STATIC,

true

);

55

submesh->indexData->indexBuffer = indexBuffer;

56

submesh->indexData->indexStart = 0;

57

submesh->indexData->indexCount = m_xSize * m_zSize * 6;

58

unsigned

int

* indexBuff = (unsigned

int

*)indexBuffer->lock(HardwareBuffer::HBL_NORMAL);

59

int

indexFirstNum = 0;

60

for

(

int

j = 0; j < m_zSize; ++j)

61

{

62

for

(

int

i = 0; i < m_xSize; ++i)

63

{

64

*indexBuff++ = indexFirstNum;

65

*indexBuff++ = indexFirstNum + 1;

66

*indexBuff++ = indexFirstNum + 2;

67

*indexBuff++ = indexFirstNum;

68

*indexBuff++ = indexFirstNum + 2;

69

*indexBuff++ = indexFirstNum + 3;

70

indexFirstNum += 4;

71

}

72

}

73

indexBuffer->unlock();

74

AxisAlignedBox meshBounds(0, m_minHeight * m_scale.y, 0,

75

m_xSize * m_scale.x, m_maxHeight * m_scale.y, m_zSize * m_scale.z);

76

mesh->_setBounds(meshBounds);

77

mesh->load();

78

mesh->touch();

79

// 设置相机位置

80

mSceneMgr->getCamera(

"PlayerCam"

)->setPosition(0, m_maxHeight * m_scale.y, 0);

81

}

01

void

SkeletonSerializer::readAnimationTrack(DataStreamPtr  &stream, Animation  *anim,

02

Skeleton *  pSkel)

03

{

04

//  unsignedshort boneIndex : Index of bone to apply to

05

unsigned

short

boneHandle;

06

readShorts(stream,  & boneHandle,  1 );

07

//  Find bone

08

Bone  * targetBone  =  pSkel -> getBone(boneHandle);

09

//  Create track

10

NodeAnimationTrack *  pTrack  =  anim -> createNodeTrack(boneHandle, targetBone);

11

//  Keep looking for nested keyframes

12

if

(! stream -> eof())

13

{

14

unsigned

short

streamID  =  readChunk(stream);

15

// while(streamID == SKELETON_ANIMATION_TRACK_KEYFRAME && !stream->eof())

16

while

((streamID  ==  SKELETON_ANIMATION_TRACK_KEYFRAME  ||  streamID  ==0x4120 )  &&! stream -> eof())

17

{

18

if

(streamID  ==0x4120 )

19

{

20

unsigned

short

len;

21

readShorts(stream,  & len,  1 );

22

unsigned

short

flags;

23

readShorts(stream,  & flags,  1 );

24

int

count  =  (mCurrentstreamLen  -4-4 )  /4 ;

25

if

(len  !=  count  /8 )

26

len  =  len;

27

float

time

;

28

for

(

int

i  =0 ; i  <  len; i  +=1 )

29

{

30

readFloats(stream,  &

time

,  1 );

31

TransformKeyFrame  * kf  =  pTrack -> createNodeKeyFrame(

time

);

32

Quaternion rot  =  Quaternion::IDENTITY;

33

if

(flags  &1 )

34

{

35

readObject(stream, rot);

36

}

37

kf -> setRotation(rot);

38

Vector3 trans  =  Vector3::ZERO;

39

if

(flags  &2 )

40

{

41

readObject(stream, trans);

42

}

43

kf -> setTranslate(trans);

44

}

45

}

46

else

47

readKeyFrame(stream, pTrack, pSkel);

48

if

(! stream -> eof())

49

{

50

//  Get next stream

51

streamID  =  readChunk(stream);

52

}

53

}

54

if

(! stream -> eof())

55

{

56

//  Backpedal back to start of this stream if we've found a non-keyframe

57

stream -> skip(- STREAM_OVERHEAD_SIZE);

58

}

59

}

60

}