Adding +1 to ID of object, everytime it makes new cube.

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Red Eye

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Posted: 18th Jul 2009 13:09 Edited at: 18th Jul 2009 13:10

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Hey,

Sorry for long though not understandable title.

So i have made a sprite cube. And when you click on it, it would make a object cube in the middle of the matrix. That works.
But if i click on it again, it wont make another cube as its ID already is 1. As i used this piece of code to make the cube:

+ Code Snippet

if(dbMouseClick() == 1)
		{
			dbMakeObjectCube (1, 10);
				dbPositionObject (1, 50, 0, 50);
		}

Note: This is just a part of the code.

But has anybody a methode, so when i click on the sprite, it would make a cube. And then if i click again, its ID would be 2 instead of 1. and then 3, 4, 5, 6. And so on...

Anyone an idea?

Thanks,

Red Eye

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Hassan

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Posted: 18th Jul 2009 13:26 Edited at: 18th Jul 2009 13:27

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+ Code Snippet

int count = 1; //global variable
if(dbMouseClick() == 1)
		{
			dbMakeObjectCube (count, 10);
			dbPositionObject (count, 50, 0, 50);
                        count++; //count value increase every time you click
		}

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Red Eye

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Posted: 18th Jul 2009 13:36

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Thank you a million mate , i see i can use this in different ways, thank you a bunch.

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Hassan

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Posted: 18th Jul 2009 14:01

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no problem, you're welcome

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jezza

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Posted: 18th Jul 2009 15:05

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you could write it as:

+ Code Snippet

int count = 0; //global variable
if(dbMouseClick() == 1)
		{
			dbMakeObjectCube (++count, 10);
			dbPositionObject (count, 50, 0, 50);
		}

which I find neater.

While Bored Blog

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Red Eye

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Posted: 18th Jul 2009 16:18

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It is indeed a bit neater, thank you both, mates.

Red Eye

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Red Eye

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Posted: 18th Jul 2009 18:06

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Thank you guys, but now everyime if i hold the icon, it will add cubes. Is there a way to prevent this.That he just adds on every click:

Her is my code:

+ Code Snippet

	{
	int mx = dbMouseX(),
		my = dbMouseY(),
		width = dbSpriteWidth(1),
		height = dbSpriteHeight(1),
		sx = dbSpriteX(1),
		sy = dbSpriteY(1);
	if(mx > sx && mx < sx + width && my > sy && my < sy + height)
		if(dbMouseClick() == 1)
		{
			dbMakeObjectCube (count, 10);
				dbPositionObject (count, 50, 0, 50);
				count++;
		}
		}

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Bran flakes91093

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Posted: 18th Jul 2009 18:17 Edited at: 18th Jul 2009 18:19

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You can do something like this:

+ Code Snippet

static int lastMouseState = 0; // Retains its value when it goes out of scope an is defined once
int mx = dbMouseX(),
my = dbMouseY(),
width = dbSpriteWidth(1),
height = dbSpriteHeight(1),
sx = dbSpriteX(1),
sy = dbSpriteY(1);
if(mx > sx && mx < sx + width && my > sy && my < sy + height)
    if(dbMouseClick() == 1 && lastMouseState != 1)
    {
	dbMakeObjectCube (count, 10);
	dbPositionObject (count, 50, 0, 50);
	count++;
    }
}
lastMouseState = dbMouseClick();

Your_Health = (My_Mood == HAPPY) ? 100 : NULL;

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Red Eye

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Posted: 18th Jul 2009 18:40 Edited at: 18th Jul 2009 18:44

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Ok, cool thanks mate, gonna try that.

EDIT: Am i missing something, or that code doesnt work?

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Bran flakes91093

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Posted: 18th Jul 2009 19:09

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It should work; It ran fine for me when I tried it. You wanted to add a cube every time the mouse's left button is clicked on the icon and not held, right? What happens?

Your_Health = (My_Mood == HAPPY) ? 100 : NULL;

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Red Eye

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Posted: 18th Jul 2009 19:15

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1>.\Main.cpp(161) : error C2065: 'lastMouseState' : undeclared identifier

This error.

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Lilith

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Posted: 18th Jul 2009 19:15

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Quote: "everyime if i hold the icon"

Bear in mind that dbMouseClick() will report the mouse click every time you ask, once you've clicked it, until you release the button. You need to track the last click status of the button and retain it. Then use some testing to see if the button is still being clicked after previously being clicked or just released after previously being clicked.

Lilith, Night Butterfly
I'm not a programmer but I play one in the office

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Red Eye

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Posted: 18th Jul 2009 19:29 Edited at: 18th Jul 2009 19:29

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We posted at the same time. Lilith, thanks mate. I am workig on it, thought the script that Bran flakes91093, showed me gives me a error:

1>.Main.cpp(161) : error C2065: 'lastMouseState' : undeclared identifier

This error.

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Bran flakes91093

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Posted: 18th Jul 2009 19:31

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Quote: "1>.\Main.cpp(161) : error C2065: 'lastMouseState' : undeclared identifier

This error."

Maybe you didn't define it?

+ Code Snippet

static int lastMouseState = 0;

Put that in the function like I posted before:

+ Code Snippet

static int lastMouseState = 0; // Retains its value when it goes out of scope an is defined once
int mx = dbMouseX(),
my = dbMouseY(),
width = dbSpriteWidth(1),
height = dbSpriteHeight(1),
sx = dbSpriteX(1),
sy = dbSpriteY(1);
if(mx > sx && mx < sx + width && my > sy && my < sy + height)
    if(dbMouseClick() == 1 && lastMouseState != 1)
    {
	dbMakeObjectCube (count, 10);
	dbPositionObject (count, 50, 0, 50);
	count++;
    }
}
lastMouseState = dbMouseClick();

Or declare it as a global variable at the top of your program.

+ Code Snippet

int lastMouseState = 0;

Your_Health = (My_Mood == HAPPY) ? 100 : NULL;

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Red Eye

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Posted: 18th Jul 2009 19:41

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I did. But now he doesnt give me error, but only a black screen.
I tried with int on top of my program, bu yet again, black screen.

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Lilith

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Posted: 18th Jul 2009 19:43

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If you're brave enough take a look at the following post. It's a Mouse class I wrote (and still haven't updated due to my schedule) that deals with issues like a button being just clicked or just released.

http://forum.thegamecreators.com/?m=forum_view&t=131456&b=22

There may be some changes you'd like to implement based on the discussion that follows and the fact that I never tackled the Z direction issues like I should have. And some of the code can be shrunk but I left it it in a working mode because the logic I'd initially developed didn't work but the shrinking of the working code looks suspiciously like the code that didn't work.

AAR, using the class or not, the logic is there to be used if you'd like to study it for your own purposes.

Lilith, Night Butterfly
I'm not a programmer but I play one in the office

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Red Eye

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Posted: 18th Jul 2009 19:46

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Ok thanks mate, i will take a look.

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Red Eye

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Posted: 18th Jul 2009 19:57

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Dont Thank you all mates, really thanks.

I putted a } too much.

Really sorry mates..

AND THANKS

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Turoid

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Posted: 19th Jul 2009 01:18

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There are many ways to do this. You can also create a function to return a 'free' object ID. With this function for example:

+ Code Snippet

int FreeObject()
{
	for (int i=1;i<99999;i++)
	{
		if( dbObjectExist(i) ==0)
		{
		    return i;
		}
	}
	return 0;
}

You could use that then with your existing code like this:

+ Code Snippet

    if(dbMouseClick() == 1 && lastMouseState != 1)
    {
        int TempID;
        TempID = FreeObject();
	dbMakeObjectCube (TempID, 10);
	dbPositionObject (TempID, 50, 0, 50);
    }

Works very nice if you just want to create some objects. But it also has its downsides. Its not super-uber fast, you have to do a linear search through all ID's which are not available. And when you want to know how many objects you have you should do another kind of linear search, instead of knowing directly what the object count is in your scene.

I use it mostly with a linked-list system. In a way I never have to worry about my object ID's. Small example of what I mean:

+ Code Snippet

c_3dObject JustAnObject;

JustAnObject.Create("modelfile.x");
JustAnObject.position.x=234;
JustAnObject.Update();

Posibilities are endless!

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Red Eye

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Posted: 19th Jul 2009 14:08

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Ok thanks, I will try that methode too.

Thank you.

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Red Eye

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Posted: 23rd Jul 2009 23:42

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Ok i ran to a problem. I have 2 files.
1. Main.cpp
2. functions.h

So all functions will go into the functions.h. And yes i have included the file, into the Main.cpp.

Now i have this trick: (cone for example)

+ Code Snippet

{
	static int lastMouseState = 0;
	int mx = dbMouseX(),
	my = dbMouseY(),
	width = dbSpriteWidth(4),
	height = dbSpriteHeight(4),
	sx = dbSpriteX(4),
	sy = dbSpriteY(4);
	if(mx > sx && mx < sx + width && my > sy && my < sy + height)
		if(dbMouseClick() == 1 && lastMouseState != 1)
	 {
			dbMakeObjectCone (count, 10);
				dbPositionObject (count, 50, 0, 50);
				count++;
	 }
	lastMouseState = dbMouseClick();		
	}

With Cone Cylinder and Plane. All work but suddenly after alot of code in While in Main.cpp it wont let me click mutliple times.

Is this cuz i have put alot of code in the while of the main.cpp?

Thanks,

Red Eye

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