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fceux
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Somewhat proper working script :)

This commit is contained in:
qfox 2008-08-01 02:04:56 +00:00
parent fc80518568
commit 81d4767443
1 changed files with 82 additions and 39 deletions
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121
documentation/lua/smb2.lua
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@ -1,12 +1,15 @@
-- unfinished mario bros 2 script
-- shows (proper!) grid for horizontal levels (b0rks in vertical levels for now)
-- shows (proper!) grid and contents. disable grid by setting variable to false
-- shows any non-air grid's tile-id
-- is sloooow :p
-- can be heavy on light systems
-- Super Mario Bros. 2 (U) (PRG0) [!].rom
-- qFox
-- 31 july 2008
local angrybirdo = false; -- makes birdo freak, but can skew other creatures with timing :)
local drawgrid = true; -- draws a green grid
local function box(x1,y1,x2,y2,color)
-- gui.text(50,50,x1..","..y1.." "..x2..","..y2);
if (x1 > 0 and x1 < 0xFF and x2 > 0 and x2 < 0xFF and y1 > 0 and y1 < 239 and y2 > 0 and y2 < 239) then
@ -24,7 +27,7 @@ local function toHexStr(n)
end;
while (true) do
if (memory.readbyte(0x0010) > 0x81) then memory.writebyte(0x0010, 0x6D); end; -- birdo fires eggs constantly :p
if (angrybirdo and memory.readbyte(0x0010) > 0x81) then memory.writebyte(0x0010, 0x6D); end; -- birdo fires eggs constantly :p
-- px = horzizontal page of current level
-- x = page x (relative to current page)
@ -50,12 +53,84 @@ while (true) do
box(playersx, playersy, playersx+16, playersy+16, "green");
end;
text(2,10,"x:"..screenoffsetx);
text(2,25,"y: "..screenoffsety);
if (memory.readbyte(0x00D8) == 0) then -- not scrolling vertically
-- show environment
-- i have playerrx, which is my real position in this level
-- i have the level, which is located at 0x6000 (the SRAM)
-- each tile (denoted by one byte) is 16x16 pixels
-- each screen is 15 tiles high and about 16 tiles wide
-- to get the right column, we add our playerrx/16 to 0x6000
-- to be exact:
-- 0x6000 + (math.floor(playerrx/16) * 0xF0) + math.mod(playerx,0x0F)
local levelstart = 0x6000; -- start of level layout in RAM
-- ok, here we have two choices. either this is a horizontal level or
-- it is a vertical level. We have no real way of checking this, but
-- luckily levels are either horizontal or vertical :)
-- so there are three possibilities
-- 1: you're in 0:0, no worries
-- 2: you're in x:0, you're in a horizontal level
-- 3: you're in 0:y, you're in a vertical level
local addleftcrap = math.mod(screenoffsetx,16)*-1; -- works as padding to keep the grid aligned
local leftsplitrx = (memory.readbyte(0x04BE)*0x100) + (screenoffsetx + addleftcrap); -- column start left. add addleftcrap to iterative stuff to build up
local addtopcrap = math.mod(screenoffsety,15); -- works as padding to keep the grid aligned
local columns = math.floor(leftsplitrx/16); -- column x of the level is on the left side of the screen
if (drawgrid) then -- print grid?
for i=0,15 do
-- text(addleftcrap+(i*16)-1, 37, toHexStr(columns+i)); -- print colnumber in each column
for j=0,17 do
box(addleftcrap+(i*16), addtopcrap+(j*16), addleftcrap+(i*16)+16, addtopcrap+(j*16)+16, "green"); -- draw green box for each cell
end;
end;
end;
-- 42=mushroom if you go sub
-- 45=small
-- 44=big
-- 49=subspace
-- 6c=pow
-- 4e=cherry
local topsplitry = (screenoffsety);
-- starting page (might flow into next page). if the number of columns
-- is > 16, its a horizontal level, else its a vertical level. in either
-- case, the other will not up this value.
local levelpage =
levelstart +
((math.floor(columns/16))*0xF0) +
(memory.readbyte(0x00CA)*0x100) +
topsplitry;
local levelcol = math.mod(columns,16); -- this is our starting column
--text(10,150,toHexStr(topsplitry).." "..toHexStr(levelcol).." "..toHexStr(levelpage+levelcol).." "..toHexStr(leftsplitrx));
for j=0,15 do -- 16 columns
if (levelcol + j > 15) then -- go to next page
levelpage = levelpage + 0xF0;
levelcol = -j;
end;
for i=0,14 do -- 15 rows
local tile = memory.readbyte(levelpage+(levelcol+j)+(i*0x10));
if (tile ~= 0x40) then
text(-2+addleftcrap+(j*16),5+(i*16),toHexStr(tile));
end;
end;
end;
end; -- not scrolling if
-- print some generic stats
text(2,10,"x:"..toHexStr(screenoffsetx));
text(2,25,"y: "..toHexStr(screenoffsety));
text(230,10,memory.readbyte(0x04C1));
text(100,10,"Page: "..playerpx..","..playerpy);
text(playersx,playersy,playerrx.."\n"..playery);
-- draw enemy info
local startpx = 0x0015;
local startpy = 0x001F;
local startx = 0x0029;
@ -89,40 +164,8 @@ while (true) do
box(esx, esy, esx+16, esy+16, "blue");
end;
end;
end; -- enemy info
end;
end; -- enemy info
-- show environment
-- i have playerrx, which is my real position in this level
-- i have the level, which is located at 0x6000 (the SRAM)
-- each tile (denoted by one byte) is 16x16 pixels
-- each screen is 15 tiles high and about 16 tiles wide
-- to get the right column, we add our playerrx/16 to 0x6000
-- to be exact:
-- 0x6000 + (math.floor(playerrx/16) * 0xF0) + math.mod(playerx,0x0F)
local levelstart = 0x6000; -- start of level layout in RAM
local addleftcrap = math.mod(screenoffsetx,16)*-1;
local leftsplitrx = (memory.readbyte(0x04BE)*0xFF) + (screenoffsetx + addleftcrap); -- column start left. add addleftcrap to iterative stuff to build up
local columns = leftsplitrx/16; -- column x of the level is on the left side of the screen
for i=0,15 do
text(addleftcrap+(i*16)-1, 37, toHexStr(columns+i));
for j=0,17 do
box(addleftcrap+(i*16), 1+(j*16), addleftcrap+(i*16)+16, 1+(j*16)+16, "green");
end;
end;
local columntop = levelstart + ((math.floor(columns/16))*0xF0) + math.mod(columns,16);
text(10,80,toHexStr(columns).." "..toHexStr(columntop));
for i=0,14 do
for j=0,15 do
local tile = memory.readbyte(columntop+(i*0x10)+j);
if (tile ~= 0x40) then
text(-2+addleftcrap+(j*16),21+(i*16),toHexStr(tile));
end;
end;
end;
end;
FCEU.frameadvance();
end;