Remove the .bat files, explain how to use directly mith CMake instead.

README.md

@@ -1,9 +1,9 @@
-# What is this?
+# Eressea PBEM Server
 
 This repository contains the source code for the Play-by-Mail 
 strategy game [Eressea](http://www.eressea.de/).
 
-# Prerequisites
+## Prerequisites
 
 Eressea depends on a number of external libraries. On a recent
 Debian-based Linux system, this is the apt-get command to
@@ -13,11 +13,10 @@ install all of them:
         liblua5.2-dev libtolua-dev libncurses5-dev libsqlite3-dev \
         libcjson-dev libiniparser-dev libexpat1-dev
 
-# How to check out and build the Eressea server
+## How to check out and build the Eressea server
 
 This repository relies heavily on the use of submodules, and it pulls in
-most of the code from those. The build system being used is cmake, which
-can create Makefiles on Unix, or Visual Studio project files on Windows.
+most of the code from those. The build system being used is CMake.
 Here's how you clone and build the source on Linux or macOS:
 
     git clone --recursive git://github.com/eressea/server.git source
@@ -31,3 +30,64 @@ it will have passed some basic functionality tests.
 * [![Static Analysis](https://scan.coverity.com/projects/6742/badge.svg?flat=1)](https://scan.coverity.com/projects/6742/)
 * [![Build Status](https://api.travis-ci.org/eressea/server.svg?branch=develop)](https://travis-ci.org/eressea/server)
 * [![License: CC BY-NC-SA 4.0](https://licensebuttons.net/l/by-nc-sa/4.0/80x15.png)](http://creativecommons.org/licenses/by-nc-sa/4.0/)
+
+## Building on Windows
+
+To build on Windows, first install Visual Studio and VCPKG: https://github.com/microsoft/vcpkg#quick-start-windows
+Set an environment variable named VCPKG_ROOT to the directory where you installed VCPKG globally, e.g. C:\VCPKG
+Now, install the required packages:
+```
+VCPKG.EXE install sqlite3 expat pdcurses cjson iniparser tolua
+VCPKG.EXE integrate install
+```
+
+Using luarocks, install the lunitx module (this can be complicated).
+
+In Visual Studio, clone the reportitory from github, or if you've already done
+that, choose File -> Open -> CMake and pick the CMakeLists.txt file in the root
+of the repository. Build the project.
+
+Select eressea.exe as the Stratup Item, then open the launch.vs.json file by 
+choosing Debug -> "Debug and Launch Settings for eressea.exe".
+
+Here, add your data the directory in "currentDir", and command line arguments 
+in "args". On my own computer, the configuration looks like this:
+```
+{
+  "version": "0.2.1",
+  "defaults": {},
+  "configurations": [
+    {
+      "type": "default",
+      "project": "CMakeLists.txt",
+      "projectTarget": "eressea.exe",
+      "args": [
+        "-w0",
+        "-t1242",
+        "-v1",
+        "-D",
+        "${workspaceRoot}\\scripts\\run-turn.lua"
+      ],
+      "currentDir": "${env.ERESSEA_ROOT}",
+      "env": {
+        "ERESSEA_ROOT": "${workspaceRoot}",
+        "LUA_PATH": "${workspaceRoot}\\scripts\\?.lua;${env.LUA_PATH}"
+      },
+      "name": "eressea.exe"
+    },
+    {
+      "type": "default",
+      "project": "CMakeLists.txt",
+      "projectTarget": "test_eressea.exe",
+      "name": "test_eressea.exe"
+    }
+  ]
+}
+```
+
+Note that I have an environment variable for my game directory called ERESSEA_ROOT. My LUA_PATH also contains the luarocks installation.
+
+```
+LUA_PATH=C:\Users\Enno\AppData\Roaming\Luarocks\share\lua\5.4\?.lua
+ERESSEA_ROOT C:\Users\Enno\Documents\Eressea\test
+```