-- PICO-8 Arcade Shooter: Square vs. Circles
-- Game Logic and Setup
-- Constants
w, h = 128, 128
max_stars = 40
player_speed = 1.5
enemy_speed = 0.5
bullet_speed = 3.5
player_size = 6
enemy_radius = 4
-- Global State
player = {}
bullets = {}
enemies = {}
stars = {}
score = 0
lives = 3
game_over = false
spawn_timer = 0
invuln_timer = 0 -- Player invincibility after being hit
last_move_dir = {x = 0, y = -1} -- Used for bullet direction
-- Initialize Game
function _init()
-- Reset game state
lives = 3
score = 0
game_over = false
bullets = {}
enemies = {}
spawn_timer = 0
invuln_timer = 0
-- Player position (center of screen)
player.x = w / 2
player.y = h / 2
-- Generate starfield
for i=1, max_stars do
add(stars, {
x = rnd(w),
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I posted a few days ago about implementing Nuclear Throne style level generation I have been tinkering around with it, current progress so far,
- I got a character
- larger rooms
- An "accidental" flame thrower.
Wrote a custom ECS system that can handle well over 2.5k entities easily(probably can handler much higher but I didn't bother to check :p)
Still need to implement enemies n all, but I am having pretty fun with pico8 :D
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I have just installed pico-8 on my Ambernic RG351P and it works but the controls are not right.
The d-pad doesn't work on any game, tbe left analogue stick works but is reversed so left is actually
right and up is down etc.
Does anyone know how to fix this problem?
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Implementing nuclear throne's level generation on pico8
I have been tinkering around with procedural level generation and Pico-8 for a few days which lead me to reimplementing a portion of Vlambeer 's iconic game Nuclear Throne's level generation.
I decided to not exactly follow their algorithm but a pretty close implementation of it. Mainly because the 1:1 implementation didn't create a very good looking map on pico8 imo.
Using a combination of
- Random walk and
- Weighted directional bias (a.k.a a random % that I hand tweaked to look satisfactory, no maths involved :p)
The algorithm was able to carve out organic levels that were pretty similar to Nuclear Throne.
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I am making a typing game in pico-8, however when I press the enter and p keys it always brings me to the pause menu. Is there a way to prevent this?
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So I found an interesting approximation algorithm for converting to and from floating point data (bitwise not in a supported variable) but the issue is its based on the assumption one has u32 to work with.
I got some of the base code working in theory but the big int library doesn't work with byte anding and oring totally in a way I'm wrapping my head around entirely yet.
The problem is while I could do it one by one with a string, that would not be efficient.
Splitting bytes and relocating to just a high byte set on two variables should work but is melting my brain. Anyone else fall down this rabbit hole before?
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