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Line Of Sight Function
I`ve created a Line-Of-Sight function that should work for most projects. It checks for map-collisions(using flag0 as the collision layer). Please use it and let me know what you do with it!
I was inspired by this post: https://www.lexaloffle.com/bbs/?tid=48889
But i wanted a simpler starting point for my own approach. A Line Of Sight check is a good starting point for you own approach but also involves some math. So to bypass that step use my function:
UPDATE 16/9/22
added a optional length-variable. Use it to define a max "range" of the that line. Keep in mind that the function already neglects far away points.
Also added a new break point for perfomance.
function can_see(x1,y1,x2,y2,length)
--x1 and y1 are the point of view,length is the max distance of the two points
local max_length=length or 1000
local xvec=0
local yvec=0
local len=0
local ret=true
[ [size=16][color=#ffaabb] [ Continue Reading.. ] [/color][/size] ](/bbs/?pid=116768#p) |
18 comments
Just wanted to try my hand at a classic game that fits the pico-8 remarkably well.
What's your high score? Have a go! I found it pretty hard getting more than 15.
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Updates:
Revision 7 (0.1.1) - Minor changes, and bug fixes:
- Tweak: Mana Burst now grants a new Frog Bomb upon completion. Other effects are removed.
- Tweak: Triples shots now deal less damage.
- Tweak: Sprial shots now deal more damage.
- Tweak: Final Boss's health increased by 30%.
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Tweak: Now Lina can move between transitions.
- Fix: Frog Bombs are now consumed when used.
- Fix: 3rd Witch now summons correct minions.
- Fix: Final enemies death will not cause immediate stage change.
- Fix: Frog Bombs now should be less performance killers.
Revision 6 (0.1.0) - Full Jam Release
17 comments
I'm new to PICO-8, and am trying to get a basic top-down movement system. So far I have this:
left = btn(⬅️) right = btn(➡️) up = btn(⬆️) down = btn(⬇️) xspd = (num(right) - num(left)) * player.speed yspd = (num(down) - num(up)) * player.speed if fget(player.x + xspd, player.y) == 0 then xspd = 0 end if fget(player.x, player.y + yspd) == 0 then yspd = 0 end player.x = player.x + xspd player.y = player.y + yspd |
num() takes in a boolean, and outputs a number (true being 1, false being 0)
The problem I have, is that I'm trying to stop the player if they hit a wall (The wall's sprite having flag 0), and I'm not sure what to do. Does anyone know what's going on?
1 comment
PICO-1K Jam 2022
The 2nd annual PICO-8 1K Jam (#Pico1k) has now started! 🥳
🌐 https://itch.io/jam/pico-1k-2022
You have until the end of September to make cool things in PICO-8
...by using only 1K (1024) Compressed Bytes of code 🗜️
No pre-defined Sprites, Maps, SFX or Music data allowed.
ALL content must be created using code.
It can be a:
🕹️ Game
🎞️ Demo (Animated or Interactive)
🛠️ Tool or Utility
...whatever you can fit within 1KB, basically!
It's a relaxed, non-competitive jam, running for a whole month.
Please refer to the PICO-1K Jam page for Rules, FAQ & Resources & more info.
6 comments
My Pico-8 game inspired by the 1982 Imagic game on the Atari 2600 and Intellivision consoles.
How to Play
Shoot everything!
Controls
[X] - Laser
Thanks To
- Finn for testing
- Paul Niven for getting me on the right track for the player sprite
Version History
- 0.80 - 30-Aug-2022 - Released
9 comments
"Gravity Wrangler"
Each world hurtles into the deep, feigning a wandering heart, accelerating their demise. What would they think if they realized that, through the eons, I was the only one standing between them and the frozen abyss...
279 characters
m,o=128,{}for i=1,9 do
o[i]={rnd(m),rnd(m),0,0}end::_::for i=1,18 do
for j=1,64 do
pset(rnd(m),rnd(m),rnd(m)<1 and rnd(3))if(i<10 and j<10)a=o[i]b=o[j]x=a[1]-b[1]y=a[2]-b[2]d=sqrt(x^2+y^2)+.1a[3]-=x/d/999a[4]-=y/d/999
end
a[1]+=a[3]a[2]+=a[4]pset(a[1],a[2],i%9+7)end
flip()goto _ |
0 comments
Testing my first game for the lazy devs shumps
is a shmup where you need to defend your base and destroy the enemy one.
My very first game ever, very excited!!
8 comments
Carlae is a itsy-bitsy snake in 𝟹̶𝟽̶𝟼̶ 358 characters, named after the cute tetracheilostoma carlae, but tetracheilostoma was kind of a mouthful.
changelog
2022-09-24
- shaved 18 characters
6 comments
DESCRIPTION
A.N.N.A. SYSTEMS OPERATIONAL.
PATIENT STATUS IS CRITICAL. MASSIVE INFECTION.
BEGIN PROCEDURE AS SOON AS POSSIBLE.
GODSPEED.
CONTROLS
Directional Keys control menu navigation and the A.N.N.A. CANNON. Press Z to fire and interact with menus. Enter to pause and reset / edit config.
NOTES
I was very lucky to be picked for the livestream of the game jam's submissions, and I had a great time working on what I would describe as 'Blood Peggle' - I hope you enjoy it as much as I liked making it. I do think we made it a bit too hard, but given that you can start on any level you like, I've opted to leave it as is.
CREDITS
This was a project for the A2B2 Game Jam, made by Remagamer and Eleven. You can follow me at https://twitter.com/Remagamer1 if you are so inclined.
1 comment
Things to do:
-fix glitches
-add sound effects
-improve graphics
You have to find four broccoli and bring them to the flag at the beginning.
4 comments
Work In Progress:
A tool I made to help learn how fillp() code works as well as the 256 colour combinations.
In future I plan to add a hexadecimal readout as well as a means of changing the colour other than rewriting the colour table in _init(). Comments and better organisation of code is also on the to do list.
5 comments
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Typing help yield on the console or pressing CTRL+U on the yield() function reveals that the help text misspells yield() as yeild().
That's... about it, really.
2 comments
Hey there! I'm here with a tool for you people wanting to show off that you, too, can have a website. My little tool here can make a website with your games on it in a jiffy, and has a tutorial for putting it on the web. Hope you like it!
Might style this if anyone cares
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This is something I made for a request on reddit a while ago, and thought I'd share it here.
The timing objects are excellent for using in any game that needs precise timing actions. The timer bars are something I added later, and are not perfect.
> Hope this helps somebody! Timing can be a real headache. But this is very user friendly. There's a full section of notes in the cartridge!
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This is a simple way to browse the internal pico-8 api, which I posted about on Twitter a while back.
1 comment