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# include "effekt.h"

effekt::effekt()
{
mesh = 0;
materialien = NULL;
anz_mat = 0;
texturen = NULL;
effect = 0;
}

effekt::~effekt()
{
DWORD i;

if( materialien)
delete[] materialien;
if( texturen)
{
for( i = 0; i < anz_mat; i++ )
{
if( texturen[i])
texturen[i]->Release();
}
delete[] texturen;
}
if( mesh)
mesh->Release();
if( effect)
effect->Release();
}

void effekt::create_mesh()
{
D3DXMATERIAL* mat;
LPD3DXBUFFER materialbuffer = 0;
DWORD i;

D3DXLoadMeshFromX( "erde.x", D3DXMESH_MANAGED, device, 0, &materialbuffer, NULL, &anz_mat, &mesh);

mat = (D3DXMATERIAL*)materialbuffer->GetBufferPointer();
materialien = new D3DMATERIAL9[anz_mat];
texturen = new LPDIRECT3DTEXTURE9[anz_mat];

for( i = 0; i < anz_mat; i++)
{
materialien[i] = mat[i].MatD3D;
materialien[i].Ambient = D3DXCOLOR( 1, 1, 1, 0);
if( D3DXCreateTextureFromFile( device, mat[i].pTextureFilename, &texturen[i]) < 0)
texturen[i] = NULL;
}
materialbuffer->Release();
}

void effekt::create_effekt()
{
D3DXCreateEffectFromFile( device, "beule.fx", 0, 0, 0, 0, &effect, 0);

vs_transformation = effect->GetParameterByName( 0, "vs_transformation");
vs_worldtrans = effect->GetParameterByName( 0, "vs_worldtrans");
vs_mittelpunkt = effect->GetParameterByName( 0, "vs_mittelpunkt");
vs_radius = effect->GetParameterByName( 0, "vs_radius");

ps_textur = effect->GetParameterByName( 0, "ps_textur");
ps_location = effect->GetParameterByName( 0, "ps_location");
ps_lightdir = effect->GetParameterByName( 0, "ps_lightdir");

beule = effect->GetTechniqueByName("beule");
}


void effekt::create( LPDIRECT3DDEVICE9 dev)
{
device = dev;

create_mesh();
create_effekt();
}


void effekt::setup( float longitude, float latitude)
{
D3DXMATRIX rot;
location = D3DXVECTOR4( 0, 0, -100, 1);

D3DXMatrixRotationX( &rot, D3DX_PI*latitude/180);
D3DXVec4Transform( &location, &location, &rot);
D3DXMatrixRotationY( &rot, D3DX_PI*(90-longitude)/180);
D3DXVec4Transform( &location, &location, &rot);
}

void effekt::render( D3DXMATRIX *trans, D3DXMATRIX *world, D3DXVECTOR4 *light, D3DXVECTOR4 *m, float r)
{
DWORD i;
UINT anz_passes, pass;

effect->SetMatrix( vs_transformation, trans);
effect->SetMatrix( vs_worldtrans, world);
effect->SetVector( vs_mittelpunkt, m);
effect->SetFloat( vs_radius, r);

effect->SetVector( ps_location, &location);
effect->SetVector( ps_lightdir, light);

effect->SetTechnique( beule);
effect->Begin(&anz_passes, 0);
for( pass = 0; pass < anz_passes; pass++)
{
effect->BeginPass( pass);
for( i = 0; i < anz_mat; i++ )
{
// device->SetMaterial( materialien+i);
effect->SetTexture( ps_textur, texturen[i]);
mesh->DrawSubset( i);
}
effect->EndPass();
}
effect->End();
}