How to display ccDrawLine? (Cocos2d)

[thyrgle]

So, lets just say I have this -

	ccDrawLine(ccp(0.0, 0.0), ccp(1.0,1.0));

How do I display that? I mean I've tried assigning a variable to ccDrawLine() and displaying it on the screen using addChild... but that doesn't work because ccDrawLine() is void... How could I display ccDrawLine(ccp(point, point), ccp(point,point)) on the screen?

[smasher]

The function ccDrawLine does not return an object of any kind - it just draws. You should use it inside the draw method of a custom object of your own that inherits from CCSprite or CCNode:

-(void)draw: (ccTime) delta
{
	glColor4f(0.8, 1.0, 0.76, 1.0);
	glLineWidth(6.0f);
	ccDrawLine(ccp(0.0, 0.0), ccp(1.0,1.0));
}

[thyrgle]

Originally Posted by smasher

The function ccDrawLine does not return an object of any kind - it just draws. You should use it inside the draw method of a custom object of your own that inherits from CCSprite or CCNode:

-(void)draw: (ccTime) delta
{
	glColor4f(0.8, 1.0, 0.76, 1.0);
	glLineWidth(6.0f);
	ccDrawLine(ccp(0.0, 0.0), ccp(1.0,1.0));
}

Hi, thank you for the quick response, but what is the (ccTime) delta for? Also, do I need to just override this method or do I need to call it or something because sorry if I sound newbish here, but copy and pasting it does not work.

[thyrgle]

Never mind actually, I got it to work... I just couldn't see the line...

[huvan]

Originally Posted by thyrgle

Never mind actually, I got it to work... I just couldn't see the line...

The correct code:
-(void)draw
{
glColor4f(0.8, 1.0, 0.76, 1.0);
glLineWidth(6.0f);
ccDrawLine(ccp(0.0, 0.0), ccp(100.0,100.0));
}

[mjmythili]

i have given 4 points. In ccTouches Moved, i want to draw lines between 1 and 2, then from 3 to 4 but not between 2 and 3.

if i touch at first point and then if i move to second point, i want to draw line between 1 and 2. Similarly if i touch at 3rd point and then if i move to 4th point, i want to draw line between 3 and 4.

I have seen the line connecting 2nd and 3rd point. l How to avoid that.

[smase]

Originally Posted by thyrgle

So, lets just say I have this -

	ccDrawLine(ccp(0.0, 0.0), ccp(1.0,1.0));

How do I display that? I mean I've tried assigning a variable to ccDrawLine() and displaying it on the screen using addChild... but that doesn't work because ccDrawLine() is void... How could I display ccDrawLine(ccp(point, point), ccp(point,point)) on the screen?

You have to override the draw method
here is an example for using ccdrawpoint and ccdrawline in cocos2d