Specific sprite movement

LinkCraft

I need help making a sprite move a certain way.
I want the left joystick to make the sprite point in a direction and then have the sprite always moving in the direction it’s pointing. But there is a catch I want the sprite to rotate at a certain speed so if the joystick is pointing down and you quickly move it up I want the sprite to take about a second to turn fully around.

If any of that makes sense lol

CasualTie5

assuming you are already keeping track of the rotation angle, maybe something like this

//keeping track
angleTurn = 0
targetAngle = 0
lastAngle = 0

loop
//code
//check for input
if angleTurn == 0 then
   targetAngle = input
endif

angleTurn += 0.1


//checks if there is still rotation to do
//you might have to do something about negative rotation, won't work because of the <=

if angleTurn < targetAngle - lastAngle then
   setSpriteRotation(sprite, lastAngle + 
      angleTurn)
else //resets the whole thing for the next time
   setSpriteRotation(sprite, targetAngle)
   angleTurn = 0
   lastAngle = targetAngle
endif

//code
repeat

hope it will be helpful in some way!

LinkCraft

I think I might be able to figure something out with this I’ll give it a try now

LinkCraft

So I got it to kind of work but there one issue. So it compares the rotation of the sprite to the position of the joystick and if the joystick is greater then it adds to the rotation of the sprite and it subtracts when it’s less but when it gets to 360 degrees and goes to 1 degree it turns all the way around in the wrong direction

CasualTie5

@LinkCraft ok, that's confusing... maybe it has to do with the "end" of the circle (i.e. going back to 1 from 360)? I'm afraid I have no idea how to fix that though

LinkCraft

Lol I’ll probably have to to something else thanks for the help though

waldron

@LinkCraft have you tried setspriteorigin to move the axis

vinicity

@LinkCraft said in Specific sprite movement:

Lol I’ll probably have to to something else thanks for the help though

Could you friend share your code? It’s easier to spot the problem then...

DomDom

This post is deleted!

LinkCraft

I made some changes to make it easer to understand but this is what I’m at so far

It sucks to get stuck in making a game from so early on lol

Planespeed = 10
Pr=0
Planeimg = loadimage(“plane”)

Plane=createsprite()
Setspriteimage(plane,planeimg)
Setspritelocation(plane,gwidth()/2,gheight()/2)
Setspritesvale(plane,{2,2})

Loop
Clear(skyblue)
C=controls(0)

If (atan2(c.lx,c.ly)) < pr then
Pr-=5
Endif

If (atan2(c.lx,c.ly)) > pr then
Pr+=5
Endif

Setspriterotation(plane,Pr)

Drawsprites()

Update()
Repeat

LinkCraft

I’m trying to make a game like Man vs. Missiles if that helps.

PickleCatStars

https://www.helixsoft.nl/articles/circle/sincos.htm

PickleCatStars

You’ll probably want a ’desiredAngle’, ’currentAngle’, and ’turnspeed’ variables for your plane. It shouldn’t be too crazy hard to get it turning the right way. I bet there’s a smart-ass one-line trick that programmers know, but don’t worry if you figure out a dumb long clumsy way - as long as it works :)

LinkCraft

I don’t care if it’s 100 lines I just want it to work Lol. I’ll check that link out later today Almost all websites are blocked on my phone (thankfully not fuze arena) and my dad uses the computer for work all day so I just have to wait until he’s done. :)

DomDom

This post is deleted!

LinkCraft

@DomDom
Is that working?

DomDom

This post is deleted!

LinkCraft

Ok perfect all give it a go thanks so much

vinicity

@DomDom Could you please just explain the code a little bit, and especially the use of the dot product?

I know it’s something I was taught in school, but it’s all a bit hazy...

DomDom

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