Spiderweb starter, 2024k.nov01
Buttons (from left) are clearScreen, home (& home2), singleStep & run!
Your task is draw spiderwebs by having the spider leave a trail while running from arrow sprite to arrow sprite to arrow sprite. (The spider script changes pen hue a little for every run.)
Press "See Sample" button to see the goal.
Most of the arrow sprites don't know where and how to move, and need you to fix their code brains! This needs lots of fixing if it is going to work.
By miker,
Revised 2024nov12 to use broadcast with wait.
revised 2024nov2 for Snap!
revised 2023nov5, original 2019oct21.
PS If you make the "origin" (center) draggable, you'll find that some markers will need to move further to reach the center, so might want to use "distance/20" instead of 8. (Or distance/howManySteps instead of stepSize.)
Converted by Snapinator from miker original in Scratch: https://scratch.mit.edu/projects/612400005
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pg28PeqSs4v2NXQVnBakoC9PLMFxYWYmtmJgT+nl2TyctSyIymY3mhAS6+mTNnwmg2g61SjPE5OdB/+SWQxNa5oeARAWoBPcJlz1xUVIRp06bhzgULsH35ckCng3jwoBclkQm1gF5q4E8vvIDKN94AW1wOM9jnM6tWeVlScJtRC+jl+S/cswd8Mf4H2Va0d6+XpZAZCdBLDax89VV8xGx3sIXZn3zpJS9LITPqghVo4BdPPYWx48ahoKBAQSnBbUotoILzL4js/RAUFBFQ9Fimom8OAOPp06djxAi26hcFrwlQF+w1OjIcCgLUBQ8FRSrDawL/B+LTiO51dqycAAAAAElFTkSuQmCCSpiderweb starter, 2024k.nov01
Buttons (from left) are clearScreen, home (& home2), singleStep & run!
Your task is draw spiderwebs by having the spider leave a trail while running from arrow sprite to arrow sprite to arrow sprite. (The spider script changes pen hue a little for every run.)
Press "See Sample" button to see the goal.
Most of the arrow sprites don't know where and how to move, and need you to fix their code brains! This needs lots of fixing if it is going to work.
By miker,
Revised 2024nov12 to use broadcast with wait.
revised 2024nov2 for Snap!
revised 2023nov5, original 2019oct21.
PS If you make the "origin" (center) draggable, you'll find that some markers will need to move further to reach the center, so might want to use "distance/20" instead of 8. (Or distance/howManySteps instead of stepSize.)
Converted by Snapinator from miker original in Scratch: https://scratch.mit.edu/projects/612400005
goHome2
All of the sprites hear this "goHome2" message and go to their favorite second starting places.20drawWeb
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This "clear" sprite does not need any more coding.
Note: if we go back to scratch instead of Snap!, the command would be "erase All" instead of "clear"
Hint: maybe
move (stepSize) steps
instead of
move ( 8 ) steps
I am the "goDown" arrow and I need more code.
Hint: maybe using simple blue "move ( ) steps" block with variable "stepSize" instead of "8"...
move (stepSize) steps
instead of
move ( 8 ) steps
I am the spider and I should run quickly from arrow sprite to arrow sprite to arrow sprite. My "drawWeb" actions are not good enough yet; please fix what I do when I receive "drawWeb."
I don't need to respond to "moveALittle" messages, and I don't need to respond to "home" nor "home2". Those are for the other arrow-sprites. The other arrow sprites are slow. I take turns with them: they moveALittle and then I run around at high speed to connect them while they are temporarily frozen and waiting to again moveALittle.
I am the "sideways" arrow and I need more code.
Hint: maybe
move (stepSize) steps
instead of
move ( 8 ) steps
I am the director sprite and I do not need any more programming. The loose command blocks are here so we can press them one at a time to see what they do. Most of the magic is in the "makeBigWeb" block.An early version of this project had only two moving arrow sprites, and they had to move in complicated paths, sometimes broadcasting a "turn45" message. Now there are five arrow sprites; much easier. Having eight would be even easier, and would remove the need for "home2" message.Note: for sprites whose home position is at the origin... which way should they point if the origin is not at the middle? For example, green "upDiag" starts ot the origin, and should I guess point halfway between the black "goDown" sprite and the red "sideways" sprite. I guess we could make sure red & black are in position, save the headings we get when we point at them, and then average the heading?Note: In Snap! we can have global blocks that sprites can share! (in Scratch, by contrast, their sprites have to be self-contained and can't use blocks that are in other sprites. Each Scratch sprite needs its own copies. We are in Snap! fortunately.
I could make a list of "whomIAmTalkingTo" and then broadcast messages to certain sprites? Does this idea help anything?
6
I am the "downDiag" arrow and I need more code.
Hint: maybe
move (stepSize) steps
instead of
move ( 8 ) stepsHint: maybe this needs to receive [ moveALittle ] messages, to and do something. Other sprites have examples.
I am the "upDiag" arrow and I need more code.
Hint: maybe use the simple blue move block
move (stepSize) steps
instead of
move ( 8 ) steps
add comment here...I am the center, also known as the "origin" and I don't really need any more coding.
However, here is an Idea:
If center starts moving around, we could get a everybody else to chase!
Uh-oh; other sprites might "goHome" (with point toward me) before I've gotten to 0,0! They'll be pointing funny. Perhaps have to tell everybody goHome 2x!
Hmmm, why go to 0,0?208upRdownL,upLdownR