I been having trouble figuring out how to draw a map (room)
:(
Can someone do a cartridge that does nothing else but draw a map.
So I don't get lost in code for player controls, etc...
Thank you so much in advance :)

same here
and I'm a big fan of voxatron i use it alot

If you've arranged sprites on the map, then you use mapdraw() to draw a section of the map.

For example, if you used the map editor to place sprites on the map starting in the top left (0, 0) and spanning 3 tiles wide and 5 tiles high, you can draw that section to the screen at (41, 37) for example, by doing this:

mapdraw(0, 0, 41, 37, 3, 5)

Does that help at all?

EDIT: here is a cartridge of that example

map example

Cart File | Forum Post |

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map example

by kittenm4ster

Cart #11109 | 2015-06-03 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA

Untitled

by digitalmonkey

Cart #11131 | 2015-06-05 | Code ▽ | Embed ▽ | No License

Thank you so much, it did help a lot :)

How can I make my character collide with sprites?

plr={}
plr.x=5
plr.y=5
plr.spr=16
plr.spd=1
plr.mv=false

function move()
	plr.mv=true
	plr.spr+=1
	if plr.spr>25 then
		plr.spr=17
		end
end

function _update()
		plr.mv=false

		if btn(0) then 
				plr.x-=plr.spd
				move()
		end
		if btn(1) then 
				plr.x+=plr.spd
				move()
		end		
		if btn(2) then 
				plr.y-=plr.spd
				move()
		end
		if btn(3) then 
				plr.y+=plr.spd	
				move()	
		end

	 if not plr.mv then
	 		plr.spr=16
	 		end

end

function _draw()
  cls()
  mapdraw(0, 0, 0, 30, 16, 9)
  spr(plr.spr,plr.x,plr.y)
end

How can I make my character collide with sprites?

Check out the jelpi demo - full source, and platformer-style collisions. I'm sure you can adapt it?

That doesn't work, there is too much code. I can't make sense of it.
Not sure what to look for.

I found a way to make a character move on a map and have an animation. here is the code

ben=0
x=0 y=0
function _update()

	 if (btn(0)) then x=x-1 end
	 if (btn(1)) then x=x+1 end
	 if (btn(2)) then y=y-1 end
	 if (btn(3)) then y=y+1 end

			if (btn(2)) then ben=ben+1 end
			if ben>2 then ben=0 end

	 	if (btn(1)) then ben=ben+1 end
			if ben>2 then ben=0 end

			if (btn(0)) then ben=ben+1 end
			if ben>2 then ben=0 end

	 	if (btn(3)) then ben=ben+1 end
			if ben>2 then ben=0 end
			end

function _draw()
  cls()
  mapdraw(0, 0, 0, 0, 16, 16)
  spr(ben,x,y)
  print(ben)
end

thanks :D

You can detect collisions with either sprite flags (good for environment) or hitboxes (good for actors).
for flags the code is something like

function coll(z)

v = mget(flr(z.x)/8,
flr(z.y)/8+1)
return fget (v,0)

end

here's a thread that explains how better than I can
https://www.lexaloffle.com/bbs/?tid=3116

for hitboxes you first assign actors hitboxes like
b.hitbox={
x=0,y=0,w=1,h=1}
add (p_bullet,b)

then check for collisions like
function hitcol(other,obj)
if
other.x+other.hitbox.x+
other.hitbox.w > obj.x+
obj.hitbox.x and
other.y+other.hitbox.y+
other.hitbox.h > obj.y+
obj.hitbox.y and
other.x+other.hitbox.x
< obj.x+obj.hitbox.x+
obj.hitbox.w and
other.y+other.hitbox.y
< obj.y+obj.hitbox.y+
obj.hitbox.h
then
return true
end
end

the picozone 3 zine has an article called "Dom8verse" that goes into setting up hitboxes.

also be sure to check out the pico8 wiki!

I threw a Frankenstein cart together if it helps

fun with collisions

by tepuitrouble

Cart #37084 | 2017-02-02 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA