JR 01's Weekly Coding Challenge

CodeAlpaca · April 23, 2024, 1:29am

Answer

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I prefer seeing a portion of the sprite still, which is why I keep it at 2 as the minimum size. Also just avoids any issues that Flowlab occasionally have with sprites at 0 size. Other ease settings are fine, I just prefer this one because it feels like it shows the front slightly longer than Linear or something else would.

Though this isn’t perfect, it still just looks more like squashing then stretching the sprite. So I’d swap the sprite once it’s finished to sell the effect more, or make the sprite slightly darker as it gets smaller. Didn’t add it though as it’s not a required part of the challenge.

Flying_Fajita · April 23, 2024, 1:49am

m yeah I forgot about leaving some portion of the sprite lol

it neets thickness

Good_Games · April 24, 2024, 12:10pm

I made this a while ago…

Code Here

It is just easier to list the code, instead of four screenshots.

`"

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[/

JR01 · April 24, 2024, 8:29pm

Spawning Rain with random.

April 24th, 2024
Difficulty: Intermediate
(Calendar & Rules)

Share a screenshot of how you would spawn rain from the top of the level. It should be randomly spawned from the top of the level and disapear when it hits the ground.

JR01 · April 26, 2024, 6:02pm

It’s been a busy week for me, here’s the answer for Monday.
I’ll post the answer for Wednesday later today and start Today’s challenge.

Monday's Answer

JR01 · April 27, 2024, 4:27am

Spawning Rain

Answer

JR01 · April 27, 2024, 4:42am

Counting with Proximity

April 26th, 2024
Difficulty: Challenging
(Calendar & Rules)

Share a screenshot of how to count the number of objects selected with proximity. This can be coins, enemies, or items. Make a version of code that uses once to count the objects, and then another version with always that shows a live count in the proximity.

Flying_Fajita · April 27, 2024, 4:51am

Answer

CodeAlpaca · April 27, 2024, 8:58pm

Also I’m cheating a bit because I’ve viewed all of JR’s examples in the past lol, wealth of knowledge there

Answer

Always

If it’s just visual display, no need to get the Number Afterward as you’ll only see the final result and it’s just a minor amount worse on performance (though actually probably better because you can use a Number instead of an expression), but for something that needs to count the enemies to perform a certain action you’d want only the total value, not all the values leading up to the total.

Once

JR01 · April 29, 2024, 8:07pm

These are correct, you can use a proximity to count the number of objects inside the proximity.

Answer

Back in the day, this is also how I counted how many coins were in each level of Escape the Rewind. The proximity works alot better nowadays, but a huge proximity set to an item used for just the first frame didn’t effect performance all that bad. You just have to be carefule on how you decide to use them.

JR01 · April 29, 2024, 8:17pm

I’ve been meaning to do one of these for a while but been pretty busy irl, but here’s the first Expert challenge. Also we may change the calender a bit since not many participates in the beginner challenges.

Spawn a wave of spikes

April 29th, 2024
Difficulty: Expert
(Calendar & Rules)

Use an expression and spawn behaviors to spawn a wave of spikes in a strait line towards the player from an enemy. This is perspective to a topdown game. Share a screenshot of the code and the math used in the expression on how to do this. Be sure the read the rules above.

You should use extractors, globals, expressions, spawns and timers.

Flying_Fajita · April 29, 2024, 10:26pm

not quite sure if this is what you’re talking about…

Answer

Flowlab Game Creator - New Game

I’m just using math that outputs x,y based off of a beginning point, rotation, and distance.

DeadlyGumChewer · April 29, 2024, 10:39pm

I decided not to the challenge because I was too lazy/just didn’t wanna do it.

Yours looks super cool though! Do you think I could save the code for later projects of mine or just to research it so I could learn from it?

Flying_Fajita · April 29, 2024, 10:59pm

yeah that’s fine

CodeAlpaca · April 30, 2024, 12:59am

Answers

There’s some room for interpretation within the question, so I’ll give two possible solutions for it.

This will send out the objects towards the objects. An extra bit of code should be added to determine how many you’d like to spawn depending on the distance to the player. (Eases are set to Linear)
Also, technically the “Numbers” aren’t needed, just assumed I would be expanding the system more.

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Then I realized that the first solution I thought of probably wasn’t intentional. I’m assuming JR wanted some like in WITW, so it spawns along that line for a preset distance.

Just a pretty simple thing, surprised this is Expert, it’s decently easy if you know basic geometry.
Also technically (wouldn’t recommend) you can do some funky stuff to loop the expression back on itself and expand the expression, and that would remove the need for the “Distance” expression. But again, wouldn’t recommend as there is basically no benefit in this case and is just unneeded extra time to figure it out.

Expression 
C+Math.cos(A*Math.PI/180)*B

// C = Enemy X/Y
// A = Angle (Math.PI/180 converts to radians)
// B = The distance between "spikes"

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Flying_Fajita · April 30, 2024, 1:18am

can I have the game link pretty please

CodeAlpaca · April 30, 2024, 1:32am

Sure, though it’s a mess of just random tests.

Go to the last level in the “!Bundles” object. There is a bundle labeled “Coding Challenge”, it’s next to the Once.

JR01 · May 1, 2024, 7:52pm

@Flying_Fajita is the first one to get it, but @CodeAlpaca are wright too. Using an ease would simplify this too, but yeah I was looking for methods with cos and sin because not only does it help with a wave of spikes, I also used the unit circle with disance to spawn accorns in the day scenes in the boss fight where the angle is randomized from the center location.

Answer

Exrepssion Cos X
(C*Math.cos(B*(Math.PI/180)))+A

Expression Sin Y
(C*Math.sin(B*(Math.PI/180)))+A

// A = This X/Y
// B = Angle
// C = Distance

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JR01 · May 1, 2024, 8:07pm

Make UI Controller Buttons

May 1st, 2024
Difficulty: Intermediate
(Rules)

Show a screenshot of code on how you would turn a Mouse Click into a repeating button like the keyboard behavior. This can be done with MouseClick or Gestures, and this is only to replicate button presses.

CodeAlpaca · May 1, 2024, 8:37pm

Answer

Maybe I misunderstood the question?