No frame advance or save states, but script-assisted off-map glitching. It's... Hard to see what's going on. I need to make several trips back and forth because, apparently, the game is reading a different tile to find out if I can put down a power line.
First, the quick pan using the A button puts the cursor in the non-glitch area. There are specific increments I can go to in order to put the cursor back into glitchmode, but I can't maintain the TAS-like building speed like in my WIP.
Second, I can't move the cursor to the right. Up, down, and left are possible, but moving the cursor to the right isn't possible. I can pan to the right, but it gets the cursor out of glitchmode... Except in those specific increments I talked about.
I'm a bit vague about those "specific increments," but at the moment, I'm not sure how to explain it. When I get a clearer idea, I'll try explaining it.
Without any script helping you watch my movie, you'll be rather surprised at finding perfectly dry power lines where there was once water, when I finally scroll back. With a script, you can actually tell what's happening while I'm glitching stuff!
Here's a script much like the one I used if you want to see what I was looking at:
local c= {}
c[0]= 0x808080FF -- Open land
c[1]= 0x000080FF -- Water
c[2]= 0x000080FF -- Water
c[3]= 0x00000080 -- ... I don't know...
for z= 0x0004,0x0013 do -- Shores!
c[z]= 0x008080FF
end
for z= 0x0014,0x0026 do -- Forests!
c[z]= 0x008000FF
end
local addrStrt= 0x7F0200 --Start of everything.
local CamX,CamY= 0x7E01BD,0x7E01BF -- Memory where camera position is stored
local CsrX,CsrY= 0x7E01EB,0x7E01ED -- Position of cursor by pixel
local IsBox= 0x7E0201 -- Is the cursor a box?
local CursorX, CursorY, CameraX, CameraY, BoxMode, TileLoc, TileVal
--*****************************************************************************
function RefreshScript()
--*****************************************************************************
CursorX= math.floor(memory.readwordsigned(CsrX)/8)
CursorY= math.floor(memory.readwordsigned(CsrY)/8)
CameraX= memory.readwordsigned(CamX)
CameraY= memory.readwordsigned(CamY)
BoxMode= (memory.readbyte(IsBox) ~= 0)
TileLoc= CameraX+CursorX + 120*(CameraY+CursorY)
TileVal= memory.readword(addrStrt + TileLoc*2)
end
--*****************************************************************************
function DumpStats()
--*****************************************************************************
gui.text( 1, 1,CursorX)
gui.text( 1, 11,CursorY)
gui.text( 1, 21,CameraX)
gui.text( 1, 31,CameraY)
gui.text( 1, 41,TileLoc)
gui.text( 1, 51,string.format("%X",TileVal))
end
--*****************************************************************************
function TileOverlay()
--*****************************************************************************
for i= 0, 31 do
local ThisTileX= i+CameraX
for j= 0, 27 do
local Temp= j+CameraY
Temp= Temp*120 + ThisTileX
local color= false
if (Temp >= 0) and (Temp < 12000) then
local TileID= bit.band(memory.readword(addrStrt+Temp*2),0x0FFF)
if c[TileID] then
color= c[TileID]
else
color= 0xFFFFFF80
end
end
if color then
gui.box(i*8,j*8,i*8+7,j*8+7,color,color)
end
end
end
end
--local LastLoc= 0
--local JoyPress= {}
--JoyPress["B"]= true
gui.opacity(0.5)
while true do
RefreshScript()
TileOverlay()
if BoxMode then
DumpStats()
if (CursorX + CameraX) < 0 then
gui.text(15,1,"Glitchmode",0xFF0000FF)
-- if (TileLoc ~= LastLoc) and ((TileVal == 1) or (TileVal == 2)) then
-- joypad.set(1,JoyPress)
-- end
end
-- LastLoc= TileLoc
end
emu.frameadvance()
end
