Discuss Scratch

#1Aug. 17, 2014 19:24:44
pixlecode
Scratcher
100+ posts

Solid Wall's

i was welcoming new scratchers, making everybody feel welcome and somebody asked me if i could help them with there script witch is “making solid walls” so i told them i would find out because i love that satisfaction you get when you help someone! Thank you ~pixlecode

Last edited by pixlecode (Aug. 17, 2014 19:27:25)

Money and fame is just an object and a rank but friends, and family is what matters most please don't say different because if you do you are not true to yourself Do a good deed everyday ~ here to help pixlecode
#2Aug. 17, 2014 19:34:00
SurgeForce
Scratcher
100+ posts

Solid Wall's

What do you mean “solid walls”?
#3Aug. 17, 2014 21:46:43
master_tolkien
Scratcher
100+ posts

Solid Wall's

For simple wall detection, like in pac-man, use something that turns the sprite in the opposite direction that it is facing, and then moves it 5 steps, or less depending on the size of the sprite (or maybe not, that's just what I assume, it's probably wrong ). Example:
if <touching [wall v] ?> then
turn ccw (180) degrees
move (5) steps
    
end
There are other more complicated ways to do the same thing that make it more perfect, but I'm not sure about those ways. I hope this helps
SCRRRRRRAAAAAAYYYYYTTTTCCHHHHH…

Swift, computer architecture, hippos.

Repeat: Programming Language in Scratch | Jump

#4Aug. 18, 2014 22:53:57
Cyoce
Scratcher
500+ posts

Solid Wall's

when green flag clicked
forever
    
if <key [right arrow v] pressed?> then
    
change x by (5)
if <touching [wall v] ?>
change x by (-5)
end
end
if <key [left arrow v] pressed?> then
    
change x by (-5)
if <touching [wall v] ?>
change x by (5)
end

end
The ability to compose a function of more complex functions does not invalidate the usefulness of said function. | Test how well your computer runs Scratch! | The platypus lives.
#5Aug. 19, 2014 08:59:29
marioman20
Scratcher
43 posts

Solid Wall's

when green flag clicked
forever
if <key [right arrow v] pressed?> then 
point in direction (90 v)   
if <touching [wall (insert wall sprite name here) v] ?> then
move (0) steps    
else
move (5) steps
end
end

repeat for all keys
a
#6Aug. 19, 2014 14:47:05
pixlecode
Scratcher
100+ posts

Solid Wall's

marioman20 wrote:

when green flag clicked
forever
if <key [right arrow v] pressed?> then 
point in direction (90 v)   
if <touching [wall (insert wall sprite name here) v] ?> then
move (0) steps    
else
move (5) steps
end
end

repeat for all keys
thank you..
Money and fame is just an object and a rank but friends, and family is what matters most please don't say different because if you do you are not true to yourself Do a good deed everyday ~ here to help pixlecode
#7Aug. 19, 2014 16:04:17
Cyoce
Scratcher
500+ posts

Solid Wall's

pixlecode wrote:

marioman20 wrote:

when green flag clicked
forever
if <key [right arrow v] pressed?> then 
point in direction (90 v)   
if <touching [wall (insert wall sprite name here) v] ?> then
move (0) steps    
else
move (5) steps
end
end

repeat for all keys
thank you..
That will not work. The problem is if you are right next to a wall, you will move 5. then you will be in the wall, and unable to move in any direction. Use the script I gave you. Repeat the process for up and down arrows. It will work. Trust me. Also, don't use the point in direction block with the move block like that. It gets weird. Use the change x by () and change y by () blocks.

Cyoce wrote:

when green flag clicked
forever
    
if <key [right arrow v] pressed?> then
    
change x by (5)
if <touching [wall v] ?>
change x by (-5)
end
end
if <key [left arrow v] pressed?> then
    
change x by (-5)
if <touching [wall v] ?>
change x by (5)
end

end

The ability to compose a function of more complex functions does not invalidate the usefulness of said function. | Test how well your computer runs Scratch! | The platypus lives.
#8Aug. 19, 2014 16:05:50
pixlecode
Scratcher
100+ posts

Solid Wall's

oh ok thanks so much!

Cyoce wrote:

pixlecode wrote:

marioman20 wrote:

when green flag clicked
forever
if <key [right arrow v] pressed?> then 
point in direction (90 v)   
if <touching [wall (insert wall sprite name here) v] ?> then
move (0) steps    
else
move (5) steps
end
end

repeat for all keys
thank you..
That will not work. The problem is if you are right next to a wall, you will move 5. then you will be in the wall, and unable to move in any direction. Use the script I gave you. Repeat the process for up and down arrows. It will work. Trust me. Also, don't use the point in direction block with the move block like that. It gets weird. Use the change x by () and change y by () blocks.

Cyoce wrote:

when green flag clicked
forever
    
if <key [right arrow v] pressed?> then
    
change x by (5)
if <touching [wall v] ?>
change x by (-5)
end
end
if <key [left arrow v] pressed?> then
    
change x by (-5)
if <touching [wall v] ?>
change x by (5)
end

end

Money and fame is just an object and a rank but friends, and family is what matters most please don't say different because if you do you are not true to yourself Do a good deed everyday ~ here to help pixlecode
#9Aug. 19, 2014 16:07:51
Cyoce
Scratcher
500+ posts

Solid Wall's

NP. Believe me, I tried using Marioman's code in one of my games and it got me stuck. Good idea, though.
The ability to compose a function of more complex functions does not invalidate the usefulness of said function. | Test how well your computer runs Scratch! | The platypus lives.
#10Aug. 19, 2014 21:49:09
wkelly42
Scratcher
100+ posts

Solid Wall's

http://scratch.mit.edu/projects/19457007/

Try that script out
My Retro Arcade:
COMPLETED: Frogger, Missile Command, Computer Space.
IN DEVELOPMENT: Barnstorming, Time Pilot, Defender, River Raid, Karateka
#11Aug. 21, 2014 07:05:29
NoChutney
Scratcher
48 posts

Solid Wall's

If you're happy to build your wall with sprites (preferably clones) then the collision detection in my platformer could be used. I prefer this to colour collisions as it removes restrictions on graphic design.

This is definitely work-in-progress. I haven't finished adding comments to the script, but the collision detection is there.

Feel free to take a look and see what you can make of it. http://scratch.mit.edu/projects/25711091/
#12Aug. 21, 2014 23:31:31
Cyoce
Scratcher
500+ posts

Solid Wall's

NoChutney wrote:

If you're happy to build your wall with sprites (preferably clones) then the collision detection in my platformer could be used. I prefer this to colour collisions as it removes restrictions on graphic design.

This is definitely work-in-progress. I haven't finished adding comments to the script, but the collision detection is there.

Feel free to take a look and see what you can make of it. http://scratch.mit.edu/projects/25711091/
Check out my platformer engine.

Last edited by Cyoce (Aug. 22, 2014 00:42:20)

The ability to compose a function of more complex functions does not invalidate the usefulness of said function. | Test how well your computer runs Scratch! | The platypus lives.
#14Aug. 22, 2014 00:00:33
pixlecode
Scratcher
100+ posts

Solid Wall's

NoChutney wrote:

If you're happy to build your wall with sprites (preferably clones) then the collision detection in my platformer could be used. I prefer this to colour collisions as it removes restrictions on graphic design.

This is definitely work-in-progress. I haven't finished adding comments to the script, but the collision detection is there.

Feel free to take a look and see what you can make of it. http://scratch.mit.edu/projects/25711091/
cool!
Money and fame is just an object and a rank but friends, and family is what matters most please don't say different because if you do you are not true to yourself Do a good deed everyday ~ here to help pixlecode
#15Aug. 22, 2014 18:39:10
NoChutney
Scratcher
48 posts

Solid Wall's

Cyoce wrote:

NoChutney wrote:

If you're happy to build your wall with sprites (preferably clones) then the collision detection in my platformer could be used. I prefer this to colour collisions as it removes restrictions on graphic design.

This is definitely work-in-progress. I haven't finished adding comments to the script, but the collision detection is there.

Feel free to take a look and see what you can make of it. http://scratch.mit.edu/projects/25711091/
Check out my platformer engine.
It's good, but there seems to be a bit issue - if you move the wall into a midair position, the player can hit the site of the wall and won't fall. That's the problem that I was trying to overcome, by making the block detect where the player is touching.
#16Aug. 22, 2014 23:34:17
Cyoce
Scratcher
500+ posts

Solid Wall's

NoChutney wrote:

Cyoce wrote:

NoChutney wrote:

If you're happy to build your wall with sprites (preferably clones) then the collision detection in my platformer could be used. I prefer this to colour collisions as it removes restrictions on graphic design.

This is definitely work-in-progress. I haven't finished adding comments to the script, but the collision detection is there.

Feel free to take a look and see what you can make of it. http://scratch.mit.edu/projects/25711091/
Check out my platformer engine.
It's good, but there seems to be a bit issue - if you move the wall into a midair position, the player can hit the site of the wall and won't fall. That's the problem that I was trying to overcome, by making the block detect where the player is touching.
I'll work on that.
The ability to compose a function of more complex functions does not invalidate the usefulness of said function. | Test how well your computer runs Scratch! | The platypus lives.

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