Fails to build on Windows

[BlazingTwist]

Problem

After doing:

# vcpkg setup
git clone https://github.com/microsoft/vcpkg.git
cd vcpkg
.\bootstrap-vcpkg.bat
$env:VCPKG_ROOT = "path\to\vcpkg"
$env:PATH = "$env:VCPKG_ROOT;$env:PATH"

# gecko setup
git clone --recurse-submodules https://github.com/JanSimek/gecko.git
cd gecko
vcpkg.exe integrate install
vcpkg.exe install --triplet x64-windows sfml

I encounter this error in Visual Studio 2022

Severity	Code	Description	Project	File	Line	Suppression State
Error		CMake Error at /vcpkg/scripts/buildsystems/vcpkg.cmake:908 (_find_package):
  Could not find a configuration file for package "SFML" that is compatible
  with requested version "2.5".

  The following configuration files were considered but not accepted:

    /vcpkg/installed/x64-windows/share/sfml/SFMLConfig.cmake, version: 3.0.2		/vcpkg/scripts/buildsystems/vcpkg.cmake	908	

Solution 1: downgrade SFML

I created gecko/vcpkg.json

{
  "dependencies": [
    "sfml"
  ],
  "builtin-baseline": "3426db05b996481ca31e95fff3734cf23e0f51bc",
  "overrides": [
    { 
        "name": "sfml", 
        "version": "2.5.1"
    }
  ]
}

(builtin-baseline is a commit hash which I carelessly copied from the documentation, but is luckily old enough to include sfml 2.5)

Then I ran:

cd gecko
vcpkg.exe install --triplet x64-windows

Which installs to gecko/vcpkg_installed and won't be found unless gecko/CMakePresets.json is also added:

{
  "version": 2,
  "configurePresets": [
    {
      "name": "vcpkg",
      "generator": "Ninja",
      "binaryDir": "${sourceDir}/build",
      "cacheVariables": {
        "CMAKE_TOOLCHAIN_FILE": "$env{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake"
      }
    }
  ]
}

(documentation)
Consequently the Environment Variable must now be permanently set so that VS sees it.

After restarting VS 2022 I was finally able to use Build >Build All.

Then I ran gecko/build/src/geck-mapper.exe.
I was prompted to select the resources directory.
I was prompted to selected a .map file.
Looks fine visually:

The console shows some errors though.

[info] Map has 1 elevation(s)
[info] Loading tiles at elevation 0
[info] Loading map scripts
[info] ... script section System has 0 scripts
[info] ... script section Spatial has 2 scripts
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[info] ... script section Timer has 0 scripts
[info] ... script section Item has 43 scripts
[error] Unknown script PID = 32
[error] Unknown script PID = 110
[error] Unknown script PID = 101
[info] ... script section Critter has 39 scripts
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[error] Unknown script PID = 204
[info] Loading 3182 map objects
[info] ... loading 3182 map objects on elevation 0
[info] Using default map elevation 0
[info] ... map file parsed in 3.89 seconds
[info] ... tile textures loaded in 0.396 seconds
[info] ... objects loaded in 3.79 seconds
[info] =======================================
[info] Map loader finished after 8.08 seconds
[info] Map sprites loaded in 3.97 seconds

Solution 2 : upgrade gecko to use SFML 3.0.2

I did not investigate this, I expect these downsides:

• it's a new major version, so migration might not be trivial
• this needs additional maintenance every time SFML receives a new version

Other info

I'm using Windows 10 Pro 19045.5679

[JanSimek]

Hi, SFML was upgraded to 3.x, but there is a new dependency on the Qt Framework. Windows build pipeline is passing but I have never tested it on Windows myself. Please let me know it it works for you, although I have a suspicion we will have to adjust data file loading at the very least.

Hopefully, in the future SFML will be removed altogether and everything will be done in just Qt.