How can i rotate a Bitmap?

[Killer_Van]

For a project I need to overlap a lot of bitmaps, and a few of them should be rotated.
I found that there is a method call 'angle' to rotate sprite, but for the bitmap?
The picture will never appear on the screen, another script will use that to animate a character.
I thought that in the internet i would found a solution, but i don't.
Can someone help me?
P.S. Sorry for my english, i'm italian

 

[Poryg]

Not a method. A method is a function tied to an object.
A variable tied to an object is called object property.

Nevertheless, I don't think you can actually rotate a texture natively. I think you can rotate a canvas, so a possible, but slow solution could be to have a texture on a new canvas, rotate it and then blit it. But I'd stick to sprite rotation instead.

 

[Killer_Van]

Sorry, but what do you mean with i'd stick to sprite rotation?
What would you do?
I don't know what a canvas is.
I'll search about that...

 

[Poryg]

whoops, my bad. It's VXAce, I forgot.
Still, can you just assign the bitmap to a sprite and rotate the sprite instead?

 

[Killer_Van]

So...
Can you already help me?
Thank you in advance

 

[Poryg]

I don't use VXAce, so VXAce rendering is too advanced for me without studying it. Nevertheless, why don't you connect the bitmap to a sprite and then rotate the sprite? Or your rendering system requires that it's bitmaps that you're dealing with?

 

[Killer_Van]

The only problem is that: I can rotate a sprite, but i need to rotate a bitmap, because then i'm gonna overlap that bitmap with another.
And i can't overlap a sprite on a bitmap.

 

[TheoAllen]

You cannot rotate the bitmap. You either
1. Use sprite for rotation (if you want to overlap it, you can just create a different sprite to stack em together)
2. Create a different image

I honestly have no idea why you cannot stick on the sprite rotation. And what you're going to use it. You said the sprite is never meant to be shown, but you said it will also be used in another circumstance. Please elaborate on what you're trying to do. Sometimes a workaround can be done by using existing methods.

 

[Killer_Van]

I need to create an animation picture: a long picture with a lot of frame in a row.
The idea is give the 1 frame and let the script make the other (moving and in same cases rotating the first frame)
I done the first, the second, the third and the fourth, but for the fifth i need to rotate the first frame.
If i create a sprite it will appear on the screen right?
Or can i use it like a bitmap? Just like i'm using it now?

 

[TheoAllen]

I still don't get the idea why you would need a rotate bitmap.
You have one bitmap, for one frame. Then the rest you want to rotate it.
Why can you just rotate one sprite by using one frame bitmap instead of TRYING to generate other frames?

You have
> 1 sprite
> 1 bitmap (for one frame)
> you assigned the bitmap into the sprite
> you just need to rotate that one sprite

 

[Heirukichi]

@Killer_Van what has been said is completely true. From what I can see you have no real reason for not using a sprite. Creating a sprite, assigning it a bitmap and then rotating the sprite is the way to go, at least as far as we can read. If you are having problems with English and you don't know how to properly convey what you are trying to achieve feel free to send me a pm, I'll try to help you in a language you are more familiar with.

 

[Killer_Van]

Sorry, I'm back.
------------------------------------------------------------------------------------------------------------------------------------------------------------
I Have:
1 empty bitmap (the empty box where i'll put the other bitmaps)
1 bitmap (the first frame)
------------------------------------------------------------------------------------------------------------------------------------------------------------
I need to:
1(the first frame)- Take the first bitmap and put it in the empty bitmap with the object property blt (using the right coordinates).
2(the second frame)- Take the first bitmap, rotate it and put it in the bitmap (using the right coordinates).
-Fill the box with the other frames.
------------------------------------------------------------------------------------------------------------------------------------------------------------
At the end i will have:
A big bitmap that contains all the frames.
Another script will take this bitmap and will animate something in the game.
------------------------------------------------------------------------------------------------------------------------------------------------------------
Questions:
1- If i create a Sprite and i rotate it, how can i overlap them together?
2- The other script wants a bitmap not a sprite.

Thank you for the patience.

I know that i'm not really good writing english but i need to practise so Heirukichi Grazie, ma, No grazie.

 

[TheoAllen]

There're two approaches, and it is not about making a new bitmap using script.
1. You make new bitmap by using any editing software, put the frame manually using your own judgment.
2. You edit this "another script" to force it using rotation instead of frames.

I'm not sure what do you mean by overlap, to be honest.
Tell me why the second approach is not possible. Or are you having trouble editing how this "another script" works?

And if it is not clear already, I'm gonna bluntly said again.
It is not possible to rotate bitmap.

 

[Killer_Van]

Ok thanks i'll do number 1