(Btw, the lua highlighting is wrong) But when I run that script, I get an error:Language: Luap=0 while true do client.screenshot("D:\StuartScreens\" .. p .. ".png") p=p+1 emu.frameadvance() end
System.NullReferenceException: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt.
bei Bizhawk.Client.Common.LuaSandbox(Action callback, Action exceptionCallback)
bei Bizhawk.Client.Emuhawk.LuaConsole.ToggleScriptMenuItem_Click(Object sender, EventArgs e)
So I have this code in order to try to calculate a speed by myself by substracting two x position: the one the frame before and the current frame. But I don't know why it says this:Language: luawhile true do currentvalue = mainmemory.readbyte(0x043C) Pastvalue[1] = Pastvalue[0] Pastvalue[0] = currentvalue speedX = Pastvalue[1] - Pastvalue[0] gui.pixelText(138,128,"sX:".. speedX) emu.frameadvance() end
LuaInterface.LuaScriptException: [string "main"]:3: attempt to index global 'Pastvalue' (a nil value)
Add Pastvalue {0,0} at the top of the script.
Or alternatively, just add:Language: LuaPastvalue = {0, 0}
Language: LuaPastvalue = {}
Throws me this: http://imgur.com/a/PcRTB as well as the first. But at first I got a different window, So I am really confused. EDIT: Removed the fixed problems and with now a new problem.Language: lualocal function speed(name,address,x,y) currentvalue = mainmemory.readbyte(address) Pastvalue[1] = Pastvalue[0] Pastvalue[0] = currentvalue speed = Pastvalue[0] - Pastvalue[1] gui.pixelText(x,y,name.. speed) end Pastvalue = { [0] = 0,--current frame [1] = 0 --Previous frame } while true do mainmemory.writebyte(0x005B,58) --Unlimited Time --mainmemory.writebyte(0x00FD,74) --Fixed cam position speed(speedX:,0x043C,138,128) emu.frameadvance() end
So I have that, but it seems that my two speeds are messed up now.Language: lualocal function speedtext(name,address,x,y) currentvalue = mainmemory.read_u16_le(address) Pastvalue[1] = Pastvalue[0] Pastvalue[0] = currentvalue speed = Pastvalue[0] - Pastvalue[1] gui.pixelText(x,y,name.. speed) end Pastvalue = { [0] = 0,--current frame [1] = 0 --Previous frame } while true do mainmemory.writebyte(0x005B,58) --Unlimited Time --mainmemory.writebyte(0x00FD,74) --Fixed cam position speedtext("1spX:",0x043C,138,128) speedtext("1spY:",0x043E,138,136) emu.frameadvance() end
Language: lualocal function speedtext (addressX, addressY, whereX, whereY) Pastvalue[0] = Currentvalue[0] Pastvalue[1] = Currentvalue[1] Currentvalue[0] = mainmemory.read_u16_le(addressX) Currentvalue[1] = mainmemory.read_u16_le(addressY) gui.pixelText(whereX, whereY, "ispX: " .. Currentvalue[0] - Pastvalue[0]) gui.pixelText(whereX, whereY + 8, "ispY: " .. Currentvalue[1] - Pastvalue[1]) end Pastvalue = { [0] = 0, -- X coordinate [1] = 0 -- Y coordinate } Currentvalue = { [0] = 0, -- X coordinate [1] = 0 -- Y coordinate } while true do mainmemory.writebyte(0x005B, 58) -- Unlimited time -- mainmemory.writebyte(0x00FD, 74) -- Fixed cam position speedtext (0x043C, 0x043E, 138, 128) emu.frameadvance end
Language: lua-- add other entries if you want -- you might want to index by name and use a table of tables: address_name = {address = 0x43c, value = 0} local past_values = { [0x043c] = 0, [0x043e] = 0, } -- IMO, the position of the text as the first arguments is more consistent local function speedtext(whereX, whereY, address, address_name) if not past_values[address] then print("Address", address) error"is invalid" end local current_value = mainmemory.read_u16_le(address) local speed = current_value - past_values[address] past_values[address] = current_value address_name = address_name or string.format("%4x", address) gui.pixelText(whereX, whereY, address_name .. ": " .. speed) end while true do local whereX, whereY = 138, 128 speedtext(whereX, whereY, 0x043c, "1spX") speedtext(whereX, whereY + 8, 0x043e, "1spY") emu.frameadvance() end
Language: luaif not past_values[address] then print("Address", address) error"is invalid" end
Language: luaaddress_name = address_name or string.format("%4x", address)
I am not sure to understand these lines from the code. Could you explain these lines?Language: luaif not past_values[address] then print("Address", address) error"is invalid" endLanguage: luaaddress_name = address_name or string.format("%4x", address)
Language: luaif address_name == nil or address_name == false then address_name = string.format("%4x", address) -- i.e., address_name is the hexadecimal representation of address else address_name = address_name -- effectively does nothing end
s='0x8b16'
xpos = memory.read_s16_be(s)
local tabl = {}
tabl = input.get()
if tabl["E"] then
if (emu.framecount()%2)>0 then
joypad.set("A")
end
if (emu.framecount()%2)<1 then
joypad.set("B")
end
endLanguage: Lualocal tabl = {} while true do tabl = input.get() if tabl["E"] then if emu.framecount()%2==0 then tabl.A=true joypad.set(tabl) end if emu.framecount()%2==1 then tabl.B=true joypad.set(tabl) end end emu.frameadvance() end
This would be my recommendation. In MUGG's revised code, tabl holds all the pressed keys. Now, joypad.set takes a table and looks for specific table keys to figure out which buttons to press. At the start of the loop, tabl gets a new table, then it is modified based on emu.framecount(). There is no explicit code to set nil or false to remove the true from A or B. The main reason why it's able to alternate A and B is that A and B are no longer true when the table is reset from the first line in the loop, as it keeps getting a new table from input.get(), and it's using a new table every loop that gets the default not-true value for both A and B. If it matters, the glitch in MUGG's code means that if you hold A or B on the keyboard while holding E as well, then A or B will be always set regardless of the frame count. If you have something set for those keys, and have something important to press while holding E that happens to be assigned to A or B, then you'll hit this glitch even if the controller A or B aren't assigned to keyboard A or B.Language: luaBtnA, BtnB= {A=true}, {B=true} while true do local tbl= input.get() if tabl["E"] then if emu.framecount()%2 == 0 then joypad.set(BtnA) else joypad.set(BtnB) end end emu.frameadvance() end
I would like to include hours but I can't seem to get it to work. If someone can help me, have my thanks!Language: Lualocal totime = function(frames,fps) mins = math.floor((frames/fps)/60) secs = math.floor((frames/fps-mins*60)*100+0.5)/100 returnvalue = string.format("%02d:%05.2f",mins,secs) return returnvalue end
Language: lualocal FRAMERATE = 60 -- Returns a string in the format hh:mm:ss.mmm -- hh only appears if non-zero -- mmm is the miliseconds local function framecount_to_time(frame) local floor = math.floor local total_seconds = frame/FRAMERATE local hours = floor(total_seconds/3600) local tmp = total_seconds - 3600*hours local minutes = floor(tmp/60) tmp = tmp - 60*minutes local seconds = floor(tmp) local miliseconds = 1000* (total_seconds%1) if hours == 0 then hours = "" else hours = string.format("%d:", hours) end local str = string.format("%s%.2d:%.2d.%03.0f", hours, minutes, seconds, miliseconds) return str end
If you can improve it, feel free to do so.Language: Lualocal totime = function(frames,fps) hours = math.floor((frames/fps)/3600) mins = math.floor((frames/fps)/60)%60 secs = math.floor(((frames/fps-mins*60)*100+0.5)/100) %60 ms = (frames % fps)/60 * 100 if hours==0 then returnvalue = string.format("%02d:%02d.%02d",mins,secs,ms) else returnvalue = string.format("%02d:%02d:%02d.%02d",hours,mins,secs,ms) end return returnvalue end
Language: lua-- use 100 and %.2d if you wanna display only centiseconds local function frames_to_time(frame, fps) local floor = math.floor local total = floor(0.5 + 1000*frame/fps) -- rounds to the nearest integer local hours = floor(total/(1000*60*60)) local mins = floor(total/(1000*60) % 60) local secs = floor(total/(1000) % 60) local ms = total % 1000 return hours == 0 and string.format("%.2d:%.2d.%.3d", mins, secs, ms) or string.format("%d:%.2d:%.2d.%.3d", hours, mins, secs, ms) end