Need help with a lot of questions

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mamaboy

15

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Joined: 24th Jan 2009

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Posted: 26th Jan 2009 06:49

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1.how can i use wasd key to control? dbWkey? syntax error

2.why my brick and garvel will shows like this?i converted them to PNG texture

3.how to ajust the view distance?lol what is that

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CheatCat

17

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Joined: 7th Mar 2007

Location: Sweden

Posted: 26th Jan 2009 12:05 Edited at: 26th Jan 2009 12:06

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1.

+ Code Snippet

if (dbKeyState(17))// W
{
//Move forward.
}
if (dbKeyState(31))//S
{
//Move backward.
}
if (dbKeyState(30))//A
{
//Go Left.
}
if (dbKeyState(32))//D
{
//Go right.
}

2. && 3. Post your source code, please.

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mamaboy

15

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Joined: 24th Jan 2009

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Posted: 26th Jan 2009 13:45

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hi cheatcat,thanks alot

my source code nothing special,these are designed using 3D world studio

codes ->

+ Code Snippet

#include "DarkGDK.h" 
void DarkGDK ( void )
{
dbLoadObject("data_bin.dbo",1);  
	dbSyncOn   ( );
	dbSyncRate ( 60 );
	dbPositionCamera ( 10, 10, -20 );
	float fCameraAngleX = 0.0f;
    float fCameraAngleY = 0.0f;
	while ( LoopGDK ( ) )
	{
		if ( dbUpKey ( ) ) 
			dbMoveCamera ( 1 );
		if ( dbDownKey ( ) )
			dbMoveCamera ( -1 );
        dbControlCameraUsingArrowKeys ( 0, 5.0f, 0.3f );
        fCameraAngleX = dbWrapValue ( fCameraAngleX + dbMouseMoveY ( ) * 0.4f );
        fCameraAngleY = dbWrapValue ( fCameraAngleY + dbMouseMoveX ( ) * 0.4f );
        dbXRotateCamera ( fCameraAngleX );
        dbYRotateCamera ( fCameraAngleY );
		dbSync ( );
	}

	return;
}

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IanM

Retired Moderator

22

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Joined: 11th Sep 2002

Location: In my moon base

Posted: 26th Jan 2009 21:03

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Why is it that people continue to insist on using meaningless numbers for their getstate values, when DirectX provides a much more readable and self-documenting format?

+ Code Snippet

if (dbKeyState(DIK_W))
{
    //Move forward.
}
if (dbKeyState(DIK_S))
{
   //Move backward.
}
if (dbKeyState(DIK_A))
{
   //Go Left.
}
if (dbKeyState(DIK_D))
{
   //Go right.
}

Make it easy on yourselves - make it so your code is readable, not only today, but in six months time. Don't use 'magic numbers' - use constants or defines:

+ Code Snippet

for (int i = 0; i < 100; ++i) { } // 100 What?

const int MaxEnemies = 100;
for (int i = 0; i < MaxEnemies; ++i) { } // Loop through all enemies

... sorry, one of my pet peeves

Utility plug-ins collection (updated 29/12/08) and
http://www.matrix1.demon.co.uk

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Plystire

21

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Joined: 18th Feb 2003

Location: Staring into the digital ether

Posted: 27th Jan 2009 04:12

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@mamaboy:

Perhaps your model is very large? You could try increase the camera clipping range to see if it makes a difference on your clipping issue.

@IanM:

Wouldn't your for loop start at 1 if you use "++i"? I always use "i++" so that the variable isn't incremented until the end of the for loop. (Correct me if I'm wrong here, please.)

The one and only,

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mamaboy

15

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Joined: 24th Jan 2009

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Posted: 27th Jan 2009 11:45

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@iamM
thats directinput?thanks alot.whats the 2nd code?

@plystire
yeah,thats my school
umm...how to increase?

i will trying to search for solution before you reply me,thanks alot!

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Nicoust

19

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Joined: 3rd Jul 2005

Location: Manchester, England

Posted: 27th Jan 2009 12:43

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@User

No the < in the forloop lets it count from 0 to 99, would have needed to be <= if doing 1 to 100. and as zero tends to be the start point for lots of 'things' it saves one key press too.

Although it does depend on what the items you are itterating through start at.

Don't use c++ if i can possibly avoid it, prefer c# which provides foreach - a very nice way of itterating through arrays and lists.

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IanM

Retired Moderator

22

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Joined: 11th Sep 2002

Location: In my moon base

Posted: 27th Jan 2009 14:06 Edited at: 27th Jan 2009 14:09

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@Plystire,
This code:

+ Code Snippet

for (int i = 0; i < 100; ++i) { /* Do something here */ }

is exactly the same as:

+ Code Snippet

{
   int i = 0;
   while (i < 100) 
   {
      /* Do something here */
      ++i;
   }

As you can see, whether the ++ is before or after the variable makes no difference to the loop.

The reason for doing a preincrement rather than a postincrement is generally a performance enhancement - in this case it makes no difference, but if it was an object, using postincrement requires a new copy of the variable to be created under some circumstances.

Quote: "whats the 2nd code?"

Just an example to back up my point ... which is easier to read?

Utility plug-ins collection (updated 29/12/08) and
http://www.matrix1.demon.co.uk

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mamaboy

15

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Joined: 24th Jan 2009

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Posted: 29th Jan 2009 07:59

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hmm...i cant find the solution in google...
are there any solution for 2&3?

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Dark GDK / Need help with a lot of questions