rotating a static body graphic.

[ijerry]

Hi

I have a graphic resource png wall 150 heigh x 3 width wich is vertically alligned in the graphic.

how can i plot this on the screen at 45 degrees

Should i create a new graphic resource which is rotated 45 degrees or can i rotate it within the code.

It is also being added as a static body in chipmunk.

if so how is it done ?

[aisman]

Put the PNG into a sprite.
After this you can rotate the sprite.

[ijerry]

Thats the question how does one rotate the graphic.

It is rectangular, it is a static wall usually, but in this case i want to initialize its position by rotating it and indirectly rotating the shape.

Below is the code after which i want to rotate graphic and cpbody/cpshape ?

Thank you.

cpBody *staticBody = cpBodyNew(INFINITY, INFINITY);
cpShape *shape;
CCSprite * wallsprite = [CCSprite spriteWithSpriteFrameName:@"verticalwallshort.png"];
[vsheet addChild:wallsprite];
wallsprite.position = ccp(x,y);
int num = 4;
CGPoint verts[] = {
ccp(-3,-28),
ccp(-3, 28),
ccp( 3, 28),
ccp( 3,-28),
};
staticBody->p = ccp(x, y);
cpShape* newShape = cpPolyShapeNew(staticBody, 4, verts, cpv(0.0f, 0.0f));
newShape->e = 0.5; newShape->u = 0.5; newShape->collision_type = 2;

cpSpaceAddStaticShape(space,newShape);

[slembcke]

Your Cocos2D and Chipmunk code doesn't reference the other in any way. What prevents you from setting wallSprite.rotation = 45?

[ijerry]

Apologies over confusion. Thank you for response. I will have a go now.

[ijerry]

The graphic rotates but the shape / body does not rotate

Is there any thing i am missing

[slembcke]

You are already attaching the poly shape to it's own body, so just rotate that too. staticBody.a = CC_DEGREES_TO_RADIANS(45).

[ijerry]

There must be something else .... this is still not doing the job ?

cpBody *staticBody = cpBodyNew(INFINITY, INFINITY);
cpShape *shape;
CCSprite * wallsprite = [CCSprite spriteWithSpriteFrameName:@"verticalwallshort.png"];
[vsheet addChild:wallsprite];
wallsprite.position = ccp(x,y);

int num = 4;
CGPoint verts[] = {
ccp(-3,-28),
ccp(-3, 28),
ccp( 3, 28),
ccp( 3,-28),
};
staticBody->p = ccp(x, y);
cpShape* newShape = cpPolyShapeNew(staticBody, 4, verts, cpv(0.0f, 0.0f));
newShape->e = 0.5; newShape->u = 0.5; newShape->collision_type = 2;
wallsprite.rotation=45;
staticBody->a = CC_DEGREES_TO_RADIANS(45);
cpSpaceAddStaticShape(space,newShape);

[ijerry]

The image rotates but the physics body remains the same vertical ?

[slembcke]

Depending on the version of Chipmunk you are using, you might have to rotate the body before attaching the static shape to it.