scambier/pico8-collisions
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Simon Cambier 2025-04-06 21:20:36 +02:00
commit ff71d8f52d
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*.html
*.js

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pico-8 cartridge // http://www.pico-8.com
version 42
__lua__
local player = {
-- position
x = 64,
y = 80,
-- velocity
dx = 0,
dy = 0,
update = function(self)
-- apply gravity
self.dy = self.dy + 1
self.dy = min(self.dy, 10)
-- collision right
if self.dx > 0 and (isColliding(self.x + self.dx + 7, self.y) or isColliding(self.x + self.dx + 7, self.y + 7)) then
self.dx = 0
end
-- collision left
if self.dx < 0 and (isColliding(self.x + self.dx, self.y) or isColliding(self.x + self.dx, self.y + 7)) then
self.dx = 0
end
-- collision down
if self.dy > 0 and (isColliding(self.x, self.y + self.dy + 7) or isColliding(self.x + 7, self.y + self.dy + 7)) then
self.dy = 0
end
-- collision up
if self.dy < 0 and (isColliding(self.x, self.y + self.dy) or isColliding(self.x + 7, self.y + self.dy)) then
self.dy = 0
end
-- apply movement
self.x = self.x + self.dx
self.y = self.y + self.dy
end,
postUpdate = function(self)
self.dx = 0
end
}
function isColliding(x, y)
return fget(mget(flr(x / 8), flr(y / 8)), 0)
end
function _init()
end
function _update()
--left
if btn(0) then
player.dx = -1
end
-- right
if btn(1) then
player.dx = 1
end
-- Up
if btnp(2) then
player.dy = -7
end
player:update()
player:postUpdate()
end
function _draw()
cls()
map()
spr(2, player.x, player.y)
end
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__map__
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