undeclared (first use this function)

[Bluelight]

I get the error "undeclared (first use this function)" after altering some code..
I changed the Terrain example into using a .3ds -file..
But I have no clue on whats wrong.. I'm not a C++ guru.. :p

Here is the whole code (Plese give eny advices and optimizations)..

[Bluelight]

Line with error in, is:

= smgr->createTerrainTriangleSelector(terrain, 0);

[Spintz]

TerrainTriangleSelector is to be used only with the TerrainSceneNode. You want to use either

• CTriangleSelector
• CTriangleBBSelector
• COctTreeTriangleSelector

[Foole]

Your 'terrain' variable is in your MyEventReceiver class. It is not accessible to the main() function. Perhaps you meant your 'Terrain' variable? (note capital T)

[Bluelight]

Ok I have tried some diffrent stuff here, but I can't make it compile with no errors.. :p

The Collision is the problem, so I made it into a comment, lol

I'm realy a n00b when it comes to C++ and I'm in need of some serious help!

Here is a screenshot of my project as it is now:
infernusweb.net/level-view.jpg (1.13 MB)


Code:


#include <irrlicht.h>
#include <iostream>
using namespace irr;
#pragma comment(lib, "Irrlicht.lib")


class MyEventReceiver : public IEventReceiver { public:

MyEventReceiver(scene::ISceneNode* terrain);

private:
scene::ISceneNode* terrain;
};



int main()
{
// use OpenGL driver type

video::E_DRIVER_TYPE driverType = video::EDT_DIRECTX9;
printf("Loading...");

driverType = video::EDT_OPENGL;

// create device

IrrlichtDevice* device = createDevice(driverType, core::dimension2d<s32>(1280, 1024),32,true,false,false);

if (device == 0)
return 1; // could not create selected driver.

video::IVideoDriver* driver = device->getVideoDriver();
scene::ISceneManager* smgr = device->getSceneManager();
gui::IGUIEnvironment* env = device->getGUIEnvironment();

driver->setTextureCreationFlag(video::ETCF_ALWAYS_32_BIT, true);

// add a logo
env->addImage(driver->getTexture("media/inf.tga"),
core::position2d<s32>(10,10));

// add some text
gui::IGUIStaticText* text = env->addStaticText(
L"Visit http://www.infernusweb.net",
core::rect<s32>(10,1005,134,1014), true, true, 0, -1, true);

// add camera
scene::ICameraSceneNode* camera =
smgr->addCameraSceneNodeFPS(0,100.0f,1200.0f);

camera->setPosition(core::vector3df(1,800,1));
camera->setTarget(core::vector3df(1,10,1));
camera->setFarValue(20000.0f);

// disable mouse cursor
device->getCursorControl()->setVisible(false);


// add terrain scene node

driver->setFog(video::SColor(0,138,125,81), true, 250, 1000, 0, true);

scene::IAnimatedMesh* Terrain = smgr->getMesh("3ds/ground.3ds");
if (Terrain)
{
// create mesh copy with tangent informations from original mesh
scene::IMesh* tangentSphereMesh2 =
smgr->getMeshManipulator()->createMeshWithTangents(Terrain->getMesh(0));

// set the alpha value of all vertices to 200
smgr->getMeshManipulator()->setVertexColorAlpha(tangentSphereMesh2, 200);

// scale the mesh by factor 50
smgr->getMeshManipulator()->scaleMesh(
tangentSphereMesh2, core::vector3df(10,10,10));

// create mesh scene node
scene::ISceneNode* sphere2 = smgr->addMeshSceneNode(tangentSphereMesh2);
sphere2->setPosition(core::vector3df(-70,130,45));

// drop mesh because we created it with a create.. call.
tangentSphereMesh2->drop();
}

// add earth sphere

scene::IAnimatedMesh* earthMesh = smgr->getMesh("media/earth.x");
if (earthMesh)
{
// create mesh copy with tangent informations from original earth.x mesh
scene::IMesh* tangentSphereMesh =
smgr->getMeshManipulator()->createMeshWithTangents(earthMesh->getMesh(0));

// set the alpha value of all vertices to 200
smgr->getMeshManipulator()->setVertexColorAlpha(tangentSphereMesh, 200);

// scale the mesh by factor 50
smgr->getMeshManipulator()->scaleMesh(
tangentSphereMesh, core::vector3df(50,50,50));

// create mesh scene node
scene::ISceneNode* sphere = smgr->addMeshSceneNode(tangentSphereMesh);
sphere->setPosition(core::vector3df(-70,130,45));

// load heightmap, create normal map from it and set it
video::ITexture* earthNormalMap = driver->getTexture("media/earthbump.bmp");
driver->makeNormalMapTexture(earthNormalMap, 20.0f);
sphere->setMaterialTexture(1, earthNormalMap);

// adjust material settings
sphere->setMaterialFlag(video::EMF_FOG_ENABLE, true);
sphere->setMaterialType(video::EMT_NORMAL_MAP_TRANSPARENT_VERTEX_ALPHA);

// add rotation animator
scene::ISceneNodeAnimator* anim =
smgr->createRotationAnimator(core::vector3df(0,0.1f,0));
sphere->addAnimator(anim);
anim->drop();

// drop mesh because we created it with a create.. call.
tangentSphereMesh->drop();
}

// add light 1 (nearly red)
scene::ILightSceneNode* light1 =
smgr->addLightSceneNode(0, core::vector3df(0,0,0),
video::SColorf(0.5f, 1.0f, 0.5f, 0.0f), 200.0f);

// add fly circle animator to light 1
scene::ISceneNodeAnimator* anim2 =
smgr->createFlyCircleAnimator (core::vector3df(50,300,0),190.0f, -0.003f);
light1->addAnimator(anim2);
anim2->drop();

// attach billboard to the light
scene::ISceneNode* bill =
smgr->addBillboardSceneNode(light1, core::dimension2d<f32>(60, 60));

bill->setMaterialFlag(video::EMF_LIGHTING, false);
bill->setMaterialType(video::EMT_TRANSPARENT_ADD_COLOR);
bill->setMaterialTexture(0, driver->getTexture("media/particlered.bmp"));

// add light 2 (gray)
scene::ISceneNode* light2 =
smgr->addLightSceneNode(0, core::vector3df(0,0,0),
video::SColorf(1.0f, 0.2f, 0.2f, 0.0f), 200.0f);

// add fly circle animator to light 2
anim2 = smgr->createFlyCircleAnimator (core::vector3df(0,150,0),200.0f);
light2->addAnimator(anim2);
anim2->drop();

// attach billboard to light
bill = smgr->addBillboardSceneNode(light2, core::dimension2d<f32>(120, 120));
bill->setMaterialFlag(video::EMF_LIGHTING, false);
bill->setMaterialType(video::EMT_TRANSPARENT_ADD_COLOR);
bill->setMaterialTexture(0, driver->getTexture("media/particlewhite.bmp"));

// add particle system
scene::IParticleSystemSceneNode* ps =
smgr->addParticleSystemSceneNode(false, light2);

ps->setParticleSize(core::dimension2d<f32>(30.0f, 40.0f));

// create and set emitter
scene::IParticleEmitter* em = ps->createBoxEmitter(
core::aabbox3d<f32>(-3,0,-3,3,1,3),
core::vector3df(0.0f,0.03f,0.0f),
80,100,
video::SColor(0,255,255,255), video::SColor(0,255,255,255),
400,1100);
ps->setEmitter(em);
em->drop();

// create and set affector
scene::IParticleAffector* paf = ps->createFadeOutParticleAffector();
ps->addAffector(paf);
paf->drop();

// adjust some material settings
ps->setMaterialFlag(video::EMF_LIGHTING, false);
ps->setMaterialTexture(0, driver->getTexture("media/fireball.bmp"));
ps->setMaterialType(video::EMT_TRANSPARENT_VERTEX_ALPHA);

/*
// create triangle selector for the terrain
scene::ITriangleSelector* selector
= smgr->CTriangleSelector(terrain, 0);
Terrain->setTriangleSelector(selector);
selector->drop();

// create collision response animator and attach it to the camera
scene::ISceneNodeAnimator* anim = smgr->createCollisionResponseAnimator(
selector, camera, core::vector3df(60,100,60),
core::vector3df(0,0,0),
core::vector3df(0,50,0));
camera->addAnimator(anim);
anim->drop();

// create event receiver
MyEventReceiver receiver(terrain);
device->setEventReceiver(&receiver);
*/

// create skybox
driver->setTextureCreationFlag(video::ETCF_CREATE_MIP_MAPS, false);

smgr->addSkyBoxSceneNode(
driver->getTexture("media/irrlicht2_up.jpg"),
driver->getTexture("media/irrlicht2_dn.jpg"),
driver->getTexture("media/irrlicht2_lf.jpg"),
driver->getTexture("media/irrlicht2_rt.jpg"),
driver->getTexture("media/irrlicht2_ft.jpg"),
driver->getTexture("media/irrlicht2_bk.jpg"));

driver->setTextureCreationFlag(video::ETCF_CREATE_MIP_MAPS, true);

int lastFPS = -1;

while(device->run())
if (device->isWindowActive())
{
driver->beginScene(true, true, 0 );

smgr->drawAll();
env->drawAll();

driver->endScene();

// display frames per second in window title
int fps = driver->getFPS();
if (lastFPS != fps)
{
core::stringw str = L"A game by infernus - Driver type: [";
str += driver->getName();
str += "] FPS:";
str += fps;

device->setWindowCaption(str.c_str());
lastFPS = fps;
}
}

device->drop();

return 0;
}

[Spintz]

Change

Code: Select all

scene::ITriangleSelector* selector = smgr->CTriangleSelector(terrain, 0);

to

Code: Select all

scene::ITriangleSelector* selector = smgr->createTriangleSelector( tangentSphereMesh2, sphere2 );