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climblevel.p8
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climblevel.p8
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pico-8 cartridge // http://www.pico-8.com
version 8
__lua__
-----------------------
-- begin: shared code
-----------------------
-- (itemdef)
-- item type constants
it_none = 0
it_horzblock = 1
it_vertblock = 2
it_platform = 3
it_goal = 4
it_spawn_loc = 5
it_sprobj = 6
it_zipup = 7
it_zipdown = 8
function load_board(sprid)
local result = {}
local x,y = getsprxy(sprid)
local numscreens,x,y =
spr2num(x,y,2)
result.numscreens = numscreens
local items = {}
result.items = items
local itemtype = nil
local v = nil
while true do
itemtype,x,y =
spr2num(x,y,1)
if itemtype == it_none then
break
end
local item = {
itemtype=itemtype,
}
add(items,item)
v,x,y =
spr2num(x,y,1)
item.xpos = v
v,x,y =
spr2num(x,y,2)
item.yscr = v
v,x,y =
spr2num(x,y,1)
item.ypos = v
local fnc =
it_readers[itemtype]
if fnc then
x,y = fnc(item,x,y)
end
end
return result
end
--sprite constants for rendering
--to map table
m_brick = 72
m_platform = 71
m_spawn = 86
m_goal = 87
m_zipup = 89
m_zipdown = 90
function board2table(board)
local t = {}
for y = 1, board.numscreens * 16 do
local r = {}
add(t, r)
for x = 1,16 do
add(r, 0)
end
end
local function horzrun(x,y,w,m)
if y < 1 or y > #t then
return
end
for i = x, min(16, x+w-1) do
t[y][i] = m
end
end
-- (itemdef)
-- items which want to be rendered
-- should extend this table with
-- a function which sets the y,x
-- values of a sequential table
-- of sequential tables
local renderfncs = {
[it_horzblock]=function(item,x,y)
horzrun(x, y, item.width, m_brick)
end,
[it_vertblock]= function(item,x,y)
for i = y, min(y+item.height-1, #t) do
t[i][x] = m_brick
end
end,
[it_platform]=function(item,x,y)
horzrun(x, y, item.width, m_platform)
end,
[it_goal]= function(item, x, y)
for i = y,min(
y+item.height-1, #t) do
horzrun(x, i,
item.width, m_goal)
end
end,
[it_spawn_loc] = function(item, x, y)
t[y][x] = m_spawn
end,
[it_zipup]= function(item, x, y)
for i = y,min(
y+item.height-1, #t) do
horzrun(x, i,
item.width, m_zipup)
end
end,
[it_zipdown]= function(item, x, y)
for i = y,min(
y+item.height-1, #t) do
horzrun(x, i,
item.width, m_zipdown)
end
end,
}
for i = 1, #board.items do
local item = board.items[i]
local fnc =
renderfncs[item.itemtype]
if fnc then
fnc (
item,
item.xpos+1,
item.yscr*16 + item.ypos+1
)
end
end
return t
end
-- (itemdef)
-- any object which reads its
-- own fields (beyond ones
-- shared by all objects)
-- should register a function
-- here which fills those into
-- the item and returns the
-- advanced x,y pixel position
it_readers = {
[it_horzblock]=
function(item,x,y)
return loaditemfield(
item,x,y,1,'width',1)
end,
[it_vertblock]=
function(item,x,y)
return loaditemfield(
item,x,y,1,'height',1)
end,
[it_platform]=
function(item,x,y)
return loaditemfield(
item,x,y,1,'width',1)
end,
[it_spawn_loc]=
function(item,x,y)
return loaditemfield(
item,x,y,1,'width',1)
end,
[it_goal]=
function(item,x,y)
x,y = loaditemfield(
item,x,y,1,'width',1)
x,y = loaditemfield(
item,x,y,1,'height',1)
return x,y
end,
[it_sprobj]=
function(item,x,y)
x,y = loaditemfield(
item,x,y,1,'objtype')
return x,y
end,
[it_zipup]=
function(item,x,y)
x,y = loaditemfield(
item,x,y,1,'width',1)
x,y = loaditemfield(
item,x,y,1,'height',1)
return x,y
end,
[it_zipdown]=
function(item,x,y)
x,y = loaditemfield(
item,x,y,1,'width',1)
x,y = loaditemfield(
item,x,y,1,'height',1)
return x,y
end,
}
function loaditemfield(
item,x,y,w,name,offset)
local v,x,y =
spr2num(x,y,w)
if (offset) v += offset
item[name] = v
return x,y
end
function spr2num(x,y,w)
local num = 0
for i = 0, w-1 do
local v = sget(x,y)
num = bor(shl(v, 4*i), num)
x,y = nextsprxy(x,y)
end
return num,x,y
end
function getsprxy(n)
return (n % 16) * 8,
flr(n/16) * 8
end
function nextsprxy(x,y)
x += 1
if x % 8 == 0 then
x -= 8
y += 1
if y % 8 == 0 then
y -= 8
x += 8
--todo, test wrapping
if x == 128 then
x = 0
y += 8
end
end
end
return x,y
end
-----------------------
-- end: shared code
-----------------------
function num2spr(x,y,w,n)
local mask = 15
for i = 0, w-1 do
sset(x,y,
shr(band(n,mask),i*4))
x,y = nextsprxy(x,y)
mask = shl(mask, 4)
end
return x,y
end
function boardtospr(board,
sprid)
local x,y = getsprxy(sprid)
local sx,sy = x,y
local addr = y*64 + x/2
--blank whole row for now
memset(addr, 0, 64*8)
--set number of screens
--by finding the highest
--item and adding 1 (xxx)
local numscreens = 1
for i in all(board.items) do
numscreens = max(numscreens,
i.yscr+1)
end
x, y = num2spr(x,y,2,
numscreens)
-- (itemdef)
-- any item type which needs to
-- write custom fields to the
-- serialized level should
-- implement a function here
-- which writes to sprite data
-- and returns the advanced
-- x,y sprite pixel position
local writefncs = {
[it_horzblock]=function(
item,x,y)
return num2spr(x,y,1,
item.width-1)
end,
[it_vertblock]=function(
item,x,y)
return num2spr(x,y,1,
item.height-1)
end,
[it_platform]=function(
item,x,y)
return num2spr(x,y,1,
item.width-1)
end,
[it_spawn_loc]=function(item, x, y)
return num2spr(x, y, 1,
item.width-1)
end,
[it_goal]=function(item, x, y)
x,y = num2spr(x, y, 1,
item.width-1)
x,y = num2spr(x, y, 1,
item.height-1)
return x,y
end,
[it_zipup]=function(item, x, y)
x,y = num2spr(x, y, 1,
item.width-1)
x,y = num2spr(x, y, 1,
item.height-1)
return x,y
end,
[it_zipdown]=function(item, x, y)
x,y = num2spr(x, y, 1,
item.width-1)
x,y = num2spr(x, y, 1,
item.height-1)
return x,y
end,
[it_sprobj]=function(item, x, y)
x,y = num2spr(x, y, 1,
item.objtype)
return x,y
end,
}
local function
writeitemhead(item)
x,y = num2spr(x,y,1,
item.itemtype)
x,y = num2spr(x,y,1,
item.xpos)
x,y = num2spr(x,y,2,
item.yscr)
x,y = num2spr(x,y,1,
item.ypos)
end
local sprobjs = {}
for i = 1, #board.items do
local item = board.items[i]
if item.itemtype ==
it_sprobj then
add(sprobjs, item)
else
writeitemhead(item)
local fnc = writefncs[
item.itemtype]
if fnc then
x,y = fnc(item, x, y)
end
end
end
function qsort(lo, hi)
if lo < hi then
local p = partition(lo, hi)
qsort(lo, p - 1)
qsort(p + 1, hi)
end
end
function swap(i, j)
local tmp = sprobjs[i]
sprobjs[i] = sprobjs[j]
sprobjs[j] = tmp
end
function gety(item)
return item.yscr*16+item.ypos
end
function partition(lo, hi)
local pivot = sprobjs[hi]
local i = lo - 1
for j = lo, hi - 1 do
if gety(sprobjs[j]) <
gety(pivot) then
i += 1
swap(i, j)
end
end
swap(i+1, hi)
return i + 1
end
if #sprobjs > 1 then
qsort(1, #sprobjs)
end
for i = 1, #sprobjs do
local item = sprobjs[i]
writeitemhead(item)
local fnc = writefncs[
item.itemtype]
if fnc then
x,y = fnc(item, x, y)
end
end
--todo figure out width
--for now, do one row
size = 64*8
cstore(addr, addr, size)
end
function table2map(t,
scrollpos)
if #t == 0 then
return
end
--todo, scrollpos
for y = 1, 16 do
for x = 1, 16 do
mset(x-1, 32-y, t[y][x])
end
end
end
function stdinit()
g_tick=0 --time
g_ct=0 --controllers
g_ctl=0 --last controllers
g_cs = {} --camera stack
g_objs = {} --objects
g_camx = 0
g_camy = 0
g_ms=0 --mouseb
g_msl=0 --last mouseb
end
function pushc(x, y)
local l=g_cs[#g_cs] or {0,0}
local n={l[1]+x,l[2]+y}
add(g_cs, n)
camera(n[1], n[2])
end
function popc()
local len = #g_cs
g_cs[len] = nil
len -= 1
if len > 0 then
local xy=g_cs[len]
camera(xy[1],xy[2])
else
camera()
end
end
function updateobjs(objs)
foreach(objs, function(t)
if t.update then
t:update(objs)
end
end)
end
function drawobjs(objs)
foreach(objs, function(t)
if t.draw then
pushc(-t.x, -t.y)
t:draw(objs)
popc()
end
end)
end
function stdupdate()
g_tick = max(0,g_tick+1)
-- current/last controller
g_ctl = g_ct
g_ct = btn()
--current/last mouse button
g_msl = g_ms
g_ms = stat(34)
--mbtn=stat(34)
updateobjs(g_objs)
end
--returns state,changed
function btns(i,p)
i=shl(1,i)
if p==1 then
i=shl(i,8)
end
local c,cng =
band(i,g_ct),
band(i,g_ctl)
return c>0,c~=cng
end
--returns new press only
function btnn(i,p)
if p==-1 then --either
return btnn(i,0) or btnn(i,1)
end
local pr,chg=btns(i,p)
return pr and chg
end
function mbtn(i)
return band(
g_ms, shl(1, i)) > 0
end
function mbtnn(i)
return mbtn(i) and
band(g_msl, shl(1, i)) == 0
end
function stddraw()
pushc(g_camx, g_camy)
drawobjs(g_objs)
popc()
end
-------------------------------
-- base class of editor items
it_base = {
-- utility for converting
-- from yscr+ypos into a
-- single y value
ytomappos=function(t)
return t.yscr*16+t.ypos
end,
-- utility for converting
-- to yscr,ypos from a single
-- y value
yfrommappos=function(t, y)
if y < 0 then
return 0, 0
end
return flr(y/16), y % 16
end,
-- base class first click
-- stores the mouse position
-- and x,y pos at the start
-- the drag for comparison
clickevent=function(t, mx, my)
--sfx(0)
t._s_mx = mx
t._s_my = my
t._s_xpos = t.xpos
t._s_ypos = t:ytomappos()
end,
-- called while the mouse is
-- held down on an object
-- (including in the same
-- cycle as first clicked)
-- base behavior implements
-- movement dragging
dragevent=function(t, mx, my)
local ox =
flr((mx - t._s_mx) /8)
t.xpos = min(15,
max(0, t._s_xpos + ox))
local oy =
flr((my - t._s_my) /8)
local scr, pos =
t:yfrommappos(
t._s_ypos + oy)
t.yscr = max(0, scr)
t.ypos = max(0, pos)
end,
}
it_base_meta = {
__index=it_base,
}
-- (itemdef)
-- item-specific methods
-- draw and bound are required
-- for interaction
-- update is currently only
-- used for items which track
-- button presses on their own
--
-- y increases upward
-- (opposite of screen coords)
--
-- mouse coordinates are in
-- item-local space
it_horzblock_meta = {
draw=function(t)
for j = 1, t.width do
spr(m_brick, (j-1)*8, -8)
end
if not t.selected then
return
end
if t.width > 1 then
print('', t.width*8+2, -9,
5)
end
if t.width < 16 then
print('', t.width*8+2, -3,
5)
end
end,
-- expressed in item-local
-- coordinates
bound=function(t)
return {0, -8, 8*t.width, 0}
end,
update=function(t)
if btnp(0) then
t.width = max(1, t.width-1)
end
if btnp(1) then
t.width = min(16, t.width+1)
end
end,
}
it_vertblock_meta = {
draw=function(t)
for j = 1, t.height do
spr(m_brick,0, (j*1)*-8)
end
if not t.selected then
return
end
if t.height > 1 then
print('', -3,
t.height*-8-6, 5)
end
if t.height < 16 then
print('', 5,
t.height*-8-6, 5)
end
end,
bound=function(t)
return {0, -8*t.height, 8, 0}
end,
update=function(t)
if btnp(3) then
t.height = max(1,
t.height-1)
end
if btnp(2) then
t.height = min(16,
t.height+1)
end
end,
}
it_spawn_loc_meta = {
draw=function(t)
spr(m_spawn, -8, -8)
end,
bound=function(t)
return {-8, -8, 0, 0}
end,
update=function(t)
end
}
it_goal_meta = {
draw=function(t)
for j = 1, t.height do
for k = 1, t.width do
spr(m_goal, (k-1)*8,
(j*1)*-8)
end
end
if not t.selected then
return
end
if t.height > 1 then
print('', -3,
t.height*-8-6, 5)
end
if t.height < 16 then
print('', 5,
t.height*-8-6, 5)
end
if t.width > 1 then
print('', t.width*8+2, -9,
5)
end
if t.width < 16 then
print('', t.width*8+2, -3,
5)
end
end,
bound=function(t)
return {0, -8*t.height,
8*t.width, 0}
end,
update=function(t)
-- xxx: for now just call
-- that these directly as
-- all they do are the
-- button presses for sizing
it_vertblock_meta.update(t)
it_horzblock_meta.update(t)
end
}
it_zipup_meta = {
draw=function(t)
for j = 1, t.height do
for k = 1, t.width do
spr(m_zipup, (k-1)*8,
(j*1)*-8)
end
end
if not t.selected then
return
end
if t.height > 1 then
print('', -3,
t.height*-8-6, 5)
end
if t.height < 16 then
print('', 5,
t.height*-8-6, 5)
end
if t.width > 1 then
print('', t.width*8+2, -9,
5)
end
if t.width < 16 then
print('', t.width*8+2, -3,
5)
end
end,
bound=function(t)
return {0, -8*t.height,
8*t.width, 0}
end,
update=function(t)
-- xxx: for now just call
-- that these directly as
-- all they do are the
-- button presses for sizing
it_vertblock_meta.update(t)
it_horzblock_meta.update(t)
end
}
it_zipdown_meta = {
draw=function(t)
for j = 1, t.height do
for k = 1, t.width do
spr(m_zipdown, (k-1)*8,
(j*1)*-8)
end
end
if not t.selected then
return
end
if t.height > 1 then
print('', -3,
t.height*-8-6, 5)
end
if t.height < 16 then
print('', 5,
t.height*-8-6, 5)
end
if t.width > 1 then
print('', t.width*8+2, -9,
5)
end
if t.width < 16 then
print('', t.width*8+2, -3,
5)
end
end,
bound=function(t)
return {0, -8*t.height,
8*t.width, 0}
end,
update=function(t)
-- xxx: for now just call
-- that these directly as
-- all they do are the
-- button presses for sizing
it_vertblock_meta.update(t)
it_horzblock_meta.update(t)
end
}
it_platform_meta = {
draw=function(t)
for j = 1, t.width do
spr(m_platform, (j-1)*8, -8)
end
if not t.selected then
return
end
if t.width > 1 then
print('', t.width*8+2, -9,
5)
end
if t.width < 16 then
print('', t.width*8+2, -3,
5)
end
end,
bound=function(t)
return {0, -8, 8*t.width, -4}
end,
update=it_horzblock_meta.update
}
it_sprobj_meta = {
draw=function(t)
local b = t:bound()
rect(b[1]-1, b[2]-1,
b[3]+1, b[4]+1, 14)
print(t.objtype, b[1]+1,
b[2]+2, 14)
spr(112 + t.objtype,
b[1]+1, b[2])
if not t.selected then
return
end
print('', b[1] - 9,
b[2] + 2, 6)
print('', b[1] + 11,
b[2] + 2, 6)
end,
bound=function(t)
return {0, -8, 8, 0}
end,
update=function(t)
if btnp(0) then
t.objtype =
(t.objtype - 1) % 16
end
if btnp(1) then
t.objtype =
(t.objtype + 1) % 16