when gf clicked
forever
repeat until <((((x position)-([x position v] of [target v]))*((x position)-([x position v] of [target v])))+(((y position)-([y position v] of [target v]))*((y position)-([y position v] of [target v])))) < ((distance to stay from target)*(distance to stay from target))>
point towards [target v]
move (5) steps
end
end

when gf clicked
forever
repeat until <((((x position)-([x position v] of [target v]))*((x position)-([x position v] of [target v])))+(((y position)-([y position v] of [target v]))*((y position)-([y position v] of [target v])))) < ((distance to stay from target)*(distance to stay from target))>
point towards [target v]
move (5) steps
end
end

• Checks it's distance to the target sprite by using the Pythagorean theorem. However, to save some time (because square roots are slow), instead of using distance=sqrt(a*a+b*b), I check by squaring distance. Since y=x^2 is increasing for x>0, we can assume that if a>b, a^2>b^2. So, we use (distance to stay away)^2 > (((my x)-(other x))^2 + ((my y)-(other y))^2)
  
• If it's still too far away, point toward the target and move 5 steps. Adjust the “5” to how fast you want the sprite to follow the target sprite.
  

glide (1) secs to x: ([x-position v] of [ Sprite1 v]) y: ([y-position v] of [ Sprite1 v])

MegaApuTurkUltra wrote:

when gf clicked
forever
repeat until <((((x position)-([x position v] of [target v]))*((x position)-([x position v] of [target v])))+(((y position)-([y position v] of [target v]))*((y position)-([y position v] of [target v])))) < ((distance to stay from target)*(distance to stay from target))>
point towards [target v]
move (5) steps
end
end

In case that was cut off, here's the source

when gf clicked
forever
repeat until <((((x position)-([x position v] of [target v]))*((x position)-([x position v] of [target v])))+(((y position)-([y position v] of [target v]))*((y position)-([y position v] of [target v])))) < ((distance to stay from target)*(distance to stay from target))>
point towards [target v]
move (5) steps
end
end

Set (distance to stay from target) as a bit more than half your target sprite's width or height, whichever looks better

What this does is

• Checks it's distance to the target sprite by using the Pythagorean theorem. However, to save some time (because square roots are slow), instead of using distance=sqrt(a*a+b*b), I check by squaring distance. Since y=x^2 is increasing for x>0, we can assume that if a>b, a^2>b^2. So, we use (distance to stay away)^2 > (((my x)-(other x))^2 + ((my y)-(other y))^2)
  
• If it's still too far away, point toward the target and move 5 steps. Adjust the “5” to how fast you want the sprite to follow the target sprite.
  

HTH

• The target (the player) can move around, so when you're moving and suddenly walk in the other direction (+180°), the sprite who's following, ‘teleports’ to the other side of the target…
  
• And also, the distance to stay away from the target is ‘big’, even if I change it to 2…
  

shoresbeep wrote:

glide (1) secs to x: ([x-position v] of [ Sprite1 v]) y: ([y-position v] of [ Sprite1 v])

glide (1) secs to x: ([(([x-position v] of [player v]) - (1)) v] of [ Sprite1]) y: ([(([y-position v] of [player v]) - (1)) v] of [ Sprite1])

when gf clicked
forever
wait until <(distance to [target v]) > (desired distance)>
point towards [target v]
move (5) steps
end

MegaApuTurkUltra wrote:

Here I made an example project: http://scratch.mit.edu/projects/34965254/
I fixed the teleporting rotation bug, and added slowing down when the following sprite gets close to the target (luckily y=x^2 already has the right curve so no addition calculation was necessary except scaling down so the follower doesn't move too fast).

DontKiIIMe wrote:

MegaApuTurkUltra wrote:

Here I made an example project: http://scratch.mit.edu/projects/34965254/
I fixed the teleporting rotation bug, and added slowing down when the following sprite gets close to the target (luckily y=x^2 already has the right curve so no addition calculation was necessary except scaling down so the follower doesn't move too fast).

I still got another problem with the distance to stay away from the target, I set the distance to 50 in your project and it seems to be close enough, but whenever I set the distance to 50 in my project, it isn't the same distance in your project… I also tried to set the distance to 10, but the follower always keeps a big distance from the target… You think you can help me out? (again )



EDIT: I fixed it, the center of the follower wasn't in the middle of the follower . Anyway, if you read this, I'm really thankful for your help

forever
    
point towards [Target v]
move (10) steps
end