pico-8 cartridge // http://www.pico-8.com
version 42
__lua__
function _init()
 add(entities,player:new())
 for i=0,20 do
  printh("")
 end
end

function _update60()
 b=btn()
 for e in all(entities) do
  e:update()
 end
end

function _draw()
 cls()
 map()
 for e in all(entities) do
  e:draw()
  
 end
 
end
-->8
--globals
--global environment
global=_ENV

--class
class=setmetatable({
 new=function(_ENV,tbl)
	 tbl=setmetatable(tbl or {},{
	  __index=_ENV
	 })
	  
	 tbl:init()
	 
	 return tbl
 end,
 init=function()end
},{__index=_ENV})


--entity
entity=class:new({
x=1,
y=1,
w=8,
h=8
})
entities={}

--btn
b=0

--helper functions
function hitx(e)
 fl=0
 for x=0,e.w do 
  x1,y1,y2=(e.x+x)/8,e.y/8,(e.y+e.h)/8
  fl=fl|fget(mget(x1,y1))|fget(mget(x1,y2))
 end
 return fl
end 

function hity(e)
 fl=0
 for y=0,e.h do
  x1,x2,y1=e.x/8,(e.x+e.w)/8,(e.y+y)/8
  fl=fl|fget(mget(x1,y1))|fget(mget(x2,y1))
 end
 return fl
end
-->8
--npc
npc=entity:new({
 spd=.5,
 s=0,--sprite
 
 update=function(_ENV)
 
 end,
 draw=function(_ENV)
  
  spr(s,x,y)
 end

})

player=npc:new({
 x=6,
 y=6,
 s=0,
 update=function(self)
--  hit(self)
  b=global.b
  xv,yv=0,0
  --left,right,up,down
  if ((b & 0x1)!=0) xv-=1
  if ((b&0x2)!=0) xv+=1
  if ((b&0x4)!=0) yv-=1
  if ((b&0x8)!=0) yv+=1
  if xv!=0 or yv!=0 then
--   if (hity(player:new({y=self.y+yv}))) self.y+=yv
--   if hit(player:new({
--    x=self.x+xv,
--    y=self.y+yv
--    })) then
--    printh("hit")
--   else
--    if (hitx(player:new({x=self.x+xv}))) printh("x?")
    t=player:new({x=self.x+xv,y=self.y+yv})
    fx=hitx(t) --flags x
    fy=hity(t) --flags y
    if ((fx&0x1)==0) self.x+=xv
    if ((fy&0x1)==0) self.y+=yv
  end
 end
})
__gfx__
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0000000088888888cccccccceeeeeeee000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
__gff__
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0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
__map__
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