pico-8 cartridge // http://www.pico-8.com version 42 __lua__ --example with time -- player object p={ x=8, y=8, w=6, h=6, d=true, bucket=0, debug="", --draw function that also displays debug msgs. don't do this, set debug outside of player draw=function(self) print(self.debug) self.debug = "" spr(13-self.bucket,0,120) spr(0,self.x,self.y) end, --move and collision combined in one function move=function(self, x, y) cx=self.x+(x*(1.5-(self.bucket/5))) cy=self.y+(y*(1.5-(self.bucket/5))) -- based on https://gamedev.docrobs.co.uk/first-steps-in-pico-8-easy-collisions-with-map-tiles collide = false cand={} for i=cx,cx+self.w,self.w do if fget(mget(i/8,cy/8),0) or fget(mget(i/8,(cy+self.h)/8),0) then collide = true add(cand,mget(i/8,cy/8,0)) add(cand,mget(i/8,(cy+self.h)/8)) -- self.debug = self.debug.."why" end end for i=cy,cy+self.h,self.h do if fget(mget(cx/8,i/8),0) or fget(mget((cx+self.w)/8,i/8),0) then collide = true add(cand,mget(cx/8,i/8,0)) add(cand,mget((cx+self.w)/8,i/8)) -- self.debug = self.debug.."why" end end if not collide then self.x = cx self.y = cy else for v in all(cand) do self.debug = self.debug..v if fget(v,2) do --empty bucket self.bucket = 0 elseif fget(v,7) do --fill bucket self.bucket +=b.s r=0 if self.bucket > 5 then b.s = self.bucket - 5 self.bucket = 5 else b:move() end end end end camera(-64+self.x, -64+self.y) end } --bucket object? b={ x=16, y=48, s=0, draw=function(self) --spr(14-self.s,self.x,self.y) mset(self.x/8,self.y/8,14-self.s) end, update=function(self,t) self.s +=t if (self.s>5) then e=true self.s = 5 end end, move=function(self) repeat x=rnd(128) y=rnd(64) until not (fget(mget(x/8,y/8),0)) or (fget(mget(x/8,y/8),1)) mset(self.x/8,self.y/8,1) self.x = x self.y = y self.s = 0 end } e = false win=false function _init() stime = stat(95)+stat(94)*60 t=time() camera() end function _update() t=time()*5 -- using modulo operator to loop action through time y=t % 16 - 8 --p.debug = p.debug..y if (y > 0) then mset(5,1+y,2) else mset(5,1+8+y,7) end x=0 y=0 if(btn(⬅️))x-=2 if(btn(➡️))x+=2 if(btn(⬇️))y+=2 if(btn(⬆️))y-=2 p:move(x,y) b:update(.025) end function _draw() cls() if false then print("you lost") else map(0,0,0,0,32,32) p:draw() b:draw() end end __gfx__ 0000000044444444cccccc1c22222222000aa000444444444cccc7c4455222544444444457ccccc5500000055000000550000005500000050000000000b00000 0111111045449444c6cc7ccc282222821aaaaaaa441111444cccccc445222c54451111145ccc7cc550000005500000055000000550000005000000000b000000 0171171044444444c6cccccc22888822a1aaaaaa44cccc4444c6cc444522225441ccc5145cccccc55cccc7c550000005500000055000000500000000b0000000 0117711044444444cccccccc22888822aa1aaa1a44cccc4444c6cc444525225441c7c61405ccc150056ccc5005c07050050000500500005000000000bbbbbbbb 0117711045444445ccccc61c22888822aaa1a1aa4cc6c16444c6c7444522225441ccd61505cccc50051cc15005cccc50050000500500005000000000b0000000 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