Cheat Engine Lua Scripting for Mono Example for BattleTech

[phorkus]

Hello again,

I'm posting a example script for accessing C# (Mono) namespace and methods from Lua in a simple script. I had a rough time finding examples of how to do this and wanted to try to save others effort in locating a simple example of how to walk name spaces, classes, and instances to invoke methods against the Mono features of Cheat Engine. It's such a rich and killer program, but it's also extremely complex for someone new to injecting into Mono (C#).



Here's the script:



[CODE]LaunchMonoDataCollector()



the_class = 0

the_method = 0

method_name = ""

klasses = {}





function class_scan_and_invoke()

for n, klass in ipairs(klasses) do

invoke_me = klasses[n]

--invoke_me = klasses[0]

print("Invoke Address: ", invoke_me)

the_instance=getAddressSafe(invoke_me)

-- params=mono_method_get_parameters(the_method)

--for m, param_name in ipairs(params) do

--print("Param Name: ", params[0].name)

--if params[m].type == MONO_TYPE_BOOLEAN then

-- print("Param Type: boolean")

print("building parameters")

-- Remember that the args array is 1 based, not 0 based.

args={}

args[1]={}

args[1].type=vtByte

args[1].value = 1

--result = mono_invoke_method(nil, the_method, the_instance, args)

result = mono_invoke_method(nil, the_method, the_instance, args)

print("Method invoked, result: ", result)

--end

--end

end

end



function mem_scan_done(m)

print("Scan completed. Running complete method.")

for k,v in pairs(klasses) do klasses[k]=nil end

print("1.")

local fl=createFoundList(m)

print("2.")

fl.initialize()

print("3.")

local i

for i=0, fl.Count-1 do

print("new klasses: ", fl[i])

table.insert(klasses, fl[i])

end

fl.destroy()

m.destroy()



class_scan_and_invoke()

end



function enable_BattleTech_debug()

local assems = mono_enumAssemblies()

for i, addr in ipairs(assems) do

-- print ("Addr", addr)

local image = mono_getImageFromAssembly(addr)

local img_name = mono_image_get_name(image)

-- print( "Image: ", img_name)

if (img_name == "Assembly-CSharp") then

print("Got Assembly-CSharp image!")

local classes = mono_image_enumClasses(image)

for j, cls_addr in ipairs(classes) do

if classes[j].namespace == "HBS.DebugConsole" then

if classes[j].classname == "DebugConsole" then

the_class = classes[j].class

print("Found Target Class and Namespace")

print("Class NS: ", classes[j].namespace)

print("Class Name: ", classes[j].classname)

local methods = mono_class_enumMethods(the_class)

for k, method_name in ipairs(methods) do

if methods[k].name == "set_DebugCommandsUnlocked" then

the_method = methods[k].method

method_name = methods[k].name

print("Method Name: ", methods[k].name)

--print("Lock on set_DebugCommandsUnlocked at: ", the_method)

-- mono_class_findInstancesOfClass(c, method_name, mem_scan_done(m))

klasses = mono_class_findInstancesOfClassListOnly(nil, the_class)

class_scan_and_invoke()

end

end

end

end

end

end

end

end



enable_BattleTech_debug()





[/CODE]



Hope this helps someone!

-Phorkus