Teardown

This page details one or more prototype versions of Teardown.

On September 23, 2020, almost exactly 5 weeks before launch day, Dennis Gustafsson released a semi-public "interactive performance test" in the now defunct de facto official "Unofficial Teardown Discord".¹ The perftest consists of only a single level, being Lee Chemicals sandbox but with extra stuff to shoot at. You can't move and you have no tools, and the camera is moved along a track, and when it reaches the end, you get kicked back to the main menu and given some stats like how many voxels you destroyed and what your average framerate was.

To do: The game segfaults when loading/baking XML levels. See if this can be worked around. A workaround for the segfault when opening the ImGui debug menu or editor has been found by 3802. As a bonus, it also allows one to move around and use tools instead of being stuck to a track. Document the differences between final and perftest's gameplay, debug menu, and level editor. Check if there is anything interesting in data/bin/test.bin. TTFH's decompiler supports the perftest.

Title screen#

Performance test	Final

There is a bar at the bottom with information specific to the perftest, the "Play" button instead says "Start test", it says "About" instead of "Credits", the background images are noticeably lower quality than the final, and the crosshair is visible in the background images despite the crosshair image not being in the perftest.

Debugging symbol path#

The executable (teardown-perftest.exe) contains the path C:\teaser\teardown\x64\Release\teardown.pdb. Unfortunately for us, this symbol file was not distributed. Strangely, it differs considerably from the final game's path of D:\tuxedolabs\teardown\trunk\teardown.pdb.

Cursor#

perftest	Final

Not only does this cursor differ from the final one, there is no hub computer or any other screen that can be interacted with anywhere, so this goes unused.

"Debug" option on main menu#

In some developer streams, there's a debug menu in the bottom left of the main menu. This menu is stripped from all Steam releases leaving only some remnants, but here we can see some more of it. It still doesn't have all of the options seen in the streams, which makes sense as most of it is campaign-specific stuff, which is not present in the perftest.

"Clear baked" will delete everything in data/bin/. If your game suddenly starts crashing every time you click "Start test", it's probably because you clicked this option without knowing what it does.

"Bake missions" presumably loads data/level/lee.xml with layer 'test' and writes a compressed quicksave to data/bin/test.bin, but it just crashes the game no matter what I put in the XML.

data/ui/menu.lua#

gDeploy = GetBool("game.deploy")

if not gDeploy then
    drawDebug()
end

function drawDebug()
    UiPush()
        UiTranslate(20, UiHeight()-20)
        UiColor(1,1,1,0.5)
        UiFont("font/regular.ttf", 20)
        if UiTextButton("Debug") then
            if gDebugScale == 0 then
                SetValue("gDebugScale", 1, "easeout", 0.25)
            else
                SetValue("gDebugScale", 0, "easein", 0.25)
            end
        end
        if gDebugScale > 0 then
            UiTranslate(0, -28)
            UiScale(1, gDebugScale)

            UiTranslate(0, -30)
            if UiTextButton("Bake missions") then
                local toBake = {}

                toBake[1] = {id="test", file="lee.xml", layers="test"}

                for i=1, #toBake do
                    Command("game.bakemission", toBake[i].id,  toBake[i].file, toBake[i].layers)
                end
                print("====================================================================================")
                print("==    DONE                                                                        ==")
                print("====================================================================================")
            end
            UiTranslate(0, -20)
            if UiTextButton("Clear baked") then
                Command("game.clearbaked")
            end
        end
    UiPop()
end

References#