how do I make it so the user can click and drag

meowmoo

I got an awesome idea for making a tower defense game on scratch but I need to make it so the player can click and drag towers

Photoguy77

forever 
 if <<mouse down> and <touching [mouse pointer v]>
  go to [mouse pointer v]

You should be able to drag this sprite now!

mitchboy

Photoguy77 wrote:
forever 
 if <<mouse down> and <touching [mouse pointer v]>
  go to [mouse pointer v]
You should be able to drag this sprite now!

You don't need to do that. All you have to do is click on the “I” in the sprite pane and select “Draggable in player?”

scubajerry

On the sprite, click the circled I (I think) Then click allow drag in player.

Eintity

mitchboy wrote:
Photoguy77 wrote:
forever 
 if <<mouse down> and <touching [mouse pointer v]>
  go to [mouse pointer v]
You should be able to drag this sprite now!
You don't need to do that. All you have to do is click on the “I” in the sprite pane and select “Draggable in player?”

That way makes the sprite able to be dragged the whole time, the script helps time when you can drag sprites.

drmcw

Be aware that although the allow drag in player check box is nice and easy you do get a difference in functionality between the editor and the player which can lead to some nasty bugs.

See here.

scubajerry

drmcw wrote:
Be aware that although the allow drag in player check box is nice and easy you do get a difference in functionality between the editor and the player which can lead to some nasty bugs.

See here.

There may be differences, but I think your example is flawed. It meows for me in all modes. I suspect that you haven't started the program in the editor mode my clicking the GF.

drmcw

scubajerry wrote:
drmcw wrote:
Be aware that although the allow drag in player check box is nice and easy you do get a difference in functionality between the editor and the player which can lead to some nasty bugs.

See here.
There may be differences, but I think your example is flawed. It meows for me in all modes. I suspect that you haven't started the program in the editor mode my clicking the GF.

You didn't read the instructions. If you drag in the player then you get a meow when the sprites touch, you only get a meow in the editor when it is dropped and they touch.

clubpenguin552222

When this sprite clicked
repeat until <mouse down>
go to [mouse pointer v]

Last edited by clubpenguin552222 (Sept. 14, 2013 15:30:19)

PhirripSyrrip

I prefer this script, you don't need to check any box, dragging is smooth, the sprite doesn't go out of the project box like it can do when you can drag in player and you can control if you want a sprite to be draggable in only certain points of a project:

when gf clicked
forever
if <mouse down?> then
if <touching [mouse-pointer v]?> then
set [X-Offset v] to ((mouse x)-(x position))
set [Y-Offset v] to ((mouse y)-(y position))
repeat until <not<mouse down?>>
set x to ((mouse x)-(X-Offset))
set y to ((mouse y)-(Y-Offset))
end
else
wait until <not<mouse down?>>

Last edited by PhirripSyrrip (Sept. 14, 2013 16:27:03)

scrachchamp20

hi

scrachchamp20

how do I make it so the user can click and drag an item to something and if it is not touching the something the item goes back to where it started?

krausem2181

[

when green flag clicked
move (10) steps

deck26

scrachchamp20 wrote:
how do I make it so the user can click and drag an item to something and if it is not touching the something the item goes back to where it started?

You should start your own topic.

The answer to your question is to store the x,y coordinates when you pick up the item and return it there if it isn't touching when you let go.

Bat_Boy

mitchboy wrote:
Photoguy77 wrote:
forever 
 if <<mouse down> and <touching [mouse pointer v]>
  go to [mouse pointer v]
You should be able to drag this sprite now!
You don't need to do that. All you have to do is click on the “I” in the sprite pane and select “Draggable in player?”

WHAT

Photoguy77 wrote:
forever 
 if <<mouse down> and <touching [mouse pointer v]>
  go to [mouse pointer v]
You should be able to drag this sprite now!

What is the green block?

BF10

Bat_Boy wrote:
mitchboy wrote:
Photoguy77 wrote:
forever 
 if <<mouse down> and <touching [mouse pointer v]>
  go to [mouse pointer v]
You should be able to drag this sprite now!
You don't need to do that. All you have to do is click on the “I” in the sprite pane and select “Draggable in player?”
WHAT
Photoguy77 wrote:
forever 
 if <<mouse down> and <touching [mouse pointer v]>
  go to [mouse pointer v]
You should be able to drag this sprite now!
What is the green block?

Please do not bump.

They are Operators.

75hi5s

PhirripSyrrip wrote:
I prefer this script, you don't need to check any box, dragging is smooth, the sprite doesn't go out of the project box like it can do when you can drag in player and you can control if you want a sprite to be draggable in only certain points of a project:
when gf clicked
forever
if <mouse down?> then
if <touching [mouse-pointer v]?> then
set [X-Offset v] to ((mouse x)-(x position))
set [Y-Offset v] to ((mouse y)-(y position))
repeat until <not<mouse down?>>
set x to ((mouse x)-(X-Offset))
set y to ((mouse y)-(Y-Offset))
end
else
wait until <not<mouse down?>>

I tried, it doe not work

75hi5s

mitchboy wrote:
Photoguy77 wrote:
forever 
 if <<mouse down> and <touching [mouse pointer v]>
  go to [mouse pointer v]
You should be able to drag this sprite now!
You don't need to do that. All you have to do is click on the “I” in the sprite pane and select “Draggable in player?”

Where is the “I” button?

lil_David

75hi5s wrote:
mitchboy wrote:
Photoguy77 wrote:
forever 
 if <<mouse down> and <touching [mouse pointer v]>
  go to [mouse pointer v]
You should be able to drag this sprite now!
You don't need to do that. All you have to do is click on the “I” in the sprite pane and select “Draggable in player?”
Where is the “I” button?

The lowercase I on the top left.

Last edited by lil_David (Nov. 14, 2015 03:03:31)

Photoguy77

So… a little explaining behind my method:

Yes, the way I demonstrated is equivalent to the “draggable in player.” But…
Replace the for loop with a while gameIsGoing == true and it only drags in game.

Discuss Scratch