How to Store Cam Position in vector3df

[Schranz0r_23]

Hi there guys!

I have a little Problem.

I want to print out the current Cam Postion
on the Screen. Therefore i thought i could
store the current position into a vector 3df var.

Currently my Code looks like this.

Code: Select all

vector3df camPos;
float camX = 1.0f;
float camY = 1.0f;
float camZ = 1.0f;

..while () ... // main loop

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camPos.set(camX,camY,camZ);
//camPos.getAs4Values(smgr->getActiveCamera()->getPosition(),0); // error!
camX = camPos.getVectorX();
camY = camPos.getVectorY();
camZ = camPos.getVectorZ();

i modified the vector3d.h a little bit (Added 3 new Methods)

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// Just the first Method to get the X coord.
float getVectorX() const
{
return X;
}

And now in my main loop i want to print out
the Position like this >

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stringw cstr = L"Current: ";
cstr += smgr->getActiveCamera()->getName();
cstr += " ";
cstr += "Position-X: ";
cstr += camX; // Prints out 1.0f

I thought the method "getAs4Values" would return all
of the coords (X,Y,Z) as an array (type vector3df).
Wheres my error??

Im out of any ideas.

Many thanks for every help!

[hybrid]

This doesn't make much sense... You can access the X,Y,Z values of a vector3df just by name: myvector.X
The getAs4Values returns the content of the vector into a pre-allocated memory area of 4 floats, so this will naturally lead to a crash if you pass 0 as target
Just read a little more in the tutorials, and study the API a little bit (assuming your C++ knowledge is advanced enough to cope with 3d engines), then everything should become much clearer.

[Eigen]

Yes, a simple

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vector3df camPos = smgr->getActiveCamera()->getPosition();

someFloat = camPos.X ..

would suffice. You're reinventing the wheel.

[Schranz0r_23]

Thanks guys !

I now got an answer : - )

It was .. pretty 2 simple

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camX = smgr->getActiveCamera()->getAbsolutePosition().X;

Thanks in advance!

[Seven]

Thanks guys !

I now got an answer : - )

It was .. pretty 2 simple

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camX = smgr->getActiveCamera()->getAbsolutePosition().X;

Thanks in advance!

Why not just use
camPos = smgr->getActiveCamera()->getAbsolutePosition();


you wont need this then
camX = camPos.getVectorX();
camY = camPos.getVectorY();
camZ = camPos.getVectorZ();

[Schranz0r_23]

Well, the reason were these Error Messages:
(Remember i want to print out the current cam Pos on the Screen).
So the values must be at least int or string.

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// ERROR: can't convert vector3df in float
//float camPosTest = smgr->getActiveCamera()->getAbsolutePosition();

vector3df camPosTest = smgr->getActiveCamera()->getAbsolutePosition();

stringw cstr = L"Current: ";
cstr += smgr->getActiveCamera()->getName();
cstr += " ";
cstr += "Position-X: ";
cstr += camX;
cstr += "Position-Y: ";
cstr += camY;
cstr += "Position-Z: ";
cstr += camZ;
// ERROR 
//cstr += " ";
//cstr += camPosTest;


font->draw(cstr.c_str(),
rect<s32>(10,10,80,80),
SColor(255,255,255,255));

[B@z]

Code: Select all

// ERROR: can't convert vector3df in float
//float camPosTest = smgr->getActiveCamera()->getAbsolutePosition();

vector3df camPosTest = smgr->getActiveCamera()->getAbsolutePosition();

stringw cstr = L"Current: ";
cstr += smgr->getActiveCamera()->getName();
cstr += " ";
cstr += "Position-X: ";
cstr += camPosTest.X;
cstr += "Position-Y: ";
cstr += camPosTest.Y;
cstr += "Position-Z: ";
cstr += camPosTest.Z;
// ERROR
//cstr += " ";
//cstr += camPosTest;


font->draw(cstr.c_str(),
rect<s32>(10,10,80,80),
SColor(255,255,255,255)); 

easy right?

[Acki]

So the values must be at least int or string.

for what reason ???

[Schranz0r_23]

@B@z:
omgosh sometimes it's too simple

@Achki

I thought that it must be at least an int or string because of
my error messages i got a few builds before. but it could be
that i made another mistake ; therefore nvm

many thanks !