Camera Problems « cocos2d for iPhone

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Camera Problems

(12 posts) (5 voices)

Started 12 months ago by penguins
Latest reply from penguins

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penguins
Member

Hello,

Sorry if this is really basic, I am new to cocos2d.

The cocos camera object has been giving me so many troubles.

In this circumstance, a picture is worth a thousand words.

http://emberapp.com/penguins/images/littlesnapper/

So I am wondering how to make that Flat. The only camera code that I have is:

[self.camera setCenterX:[player img].position.x centerY:[player img].position.y centerZ:0];

Thanks for the help. And sorry if it was already on the forums. I searched camera for help, but found nothing pertaining to my problem.

Posted 12 months ago #
rbrooky
Member

Not sure what you're trying to achieve? What do you mean by flat? The entire background or just the purple square in the middle.

Posted 12 months ago #
penguins
Member

I am trying to eliminate the 3rd dimension. I am trying to make every tile, a square, 16px by 16px, the original setup. I am trying to eliminate the rotation of the the layer. Eliminate perspective.

Thanks for the help.

Posted 12 months ago #
pabloruiz55
Member

Hi! You should also center the camera's eye to the player. Also you have to set the z of the center and eye to the default of the camera.

Posted 12 months ago #
riq
Key Master
try with:
```
[[node camera] restore];
```
Posted 12 months ago #

penguins
Member

Thanks for the help. I just tried the above,

[[self camera] restore];
	[[self camera] setCenterX:[[player img] position].x centerY:[[player img] position].y centerZ:0];

Gives me that same thing, (this is all in the gameLayer class.)
and the

[[self camera] restore];
	[[self camera] setCenterX:[[player img] position].x centerY:[[player img] position].y centerZ:0];
	[[self camera] setEyeX:[[player img] position].x eyeY:[[player img] position].y eyeZ:0];

Gives me the black screen of death and sadness.

Is there some demo out there the uses camera? I have searched, and have found nothing.

Thanks for the help and speedy reply,

Posted 12 months ago #

riq
Key Master
just don't mix [[self camera] restore];] with the other methods.
just try:
```
[[self camera] restore];
// DON'T call any other camera method after this method.
```
Posted 12 months ago #
penguins
Member

Thanks, That is the perspective that I want from doing that, everything flat, But how would I pan the layer. I got it to work with self.position, but I wanted to do it the "right", as seen by a previous thread with the camera.

Thanks for the help

Posted 12 months ago #
pabloruiz55
Member

[[self camera] setCenterX:[[player img] position].x centerY:[[player img] position].y centerZ:0];
[[self camera] setEyeX:[[player img] position].x eyeY:[[player img] position].y eyeZ:0];

you sohuldn't position the z to 0, get the camera's centerZ and eyeZ values and use them so the z values always remain the same.

Posted 12 months ago #

penguins
Member

Thanks everyone, I solved it. I didn’t realize how many options there are associated with the camera, but using the Already predefined Z values did the trick. Just in case anyone else has the same problem,
this is what I did:

float centerX;
	float centerY;
	float centerZ;

	float eyeX;
	float eyeY;
	float eyeZ;

	float upX;
	float upY;
	float upZ;

	[[self camera] centerX:&centerX centerY:&centerY centerZ:&centerZ];
	[[self camera] upX:&upX upY:&upY upZ:&upZ];
	[[self camera] eyeX:&eyeX eyeY:&eyeY eyeZ:&eyeZ];

	[[self camera] setEyeX:[player img].position.x  eyeY:[player img].position.y eyeZ:eyeZ];
	[[self camera] setCenterX:[player img].position.x centerY:[player img].position.y centerZ:centerZ];
	[[self camera] setUpX:upX upY:upY upZ:upZ];

Thanks again.

Posted 12 months ago #

GameBit
Member

didn't riq said "[[self camera] restore]; // DON'T call any other camera method after this method."

Posted 12 months ago #
penguins
Member

There removed, I removed it in my own code as well. Thanks.

Posted 12 months ago #

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