simplify xmake.lua

xmake.lua

@@ -6,6 +6,7 @@ add_rules("mode.debug", "mode.release")
 add_requires("libsdl 2.28.3", "glbinding >= 3", "zlib", "assimp", "nlohmann_json")
 
 set_languages("c++17")
+add_includedirs("include")
 
 -- Game files (with server)
 target("Blitz")
@@ -16,7 +17,6 @@ target("Blitz")
         set_kind("shared")
     end
 
-    add_includedirs("include")
     add_files("src/blitz/**.cpp", "src/server/**.cpp")
 
     add_packages("zlib")
@@ -28,10 +28,8 @@ target("Blitz")
 -- Server binary (headless)
 target("BlitzServer")
     set_kind("binary")
-    set_languages("c++17")
     set_default(false)
 
-    add_includedirs("include")
     add_files("src/ServerMain.cpp")
 
     -- Libraries
@@ -49,10 +47,8 @@ target("BlitzClient")
         set_kind("binary")
     end
 
-    set_languages("c++17")
     set_default(true)
 
-    add_includedirs("include")
     add_files("src/client/**.cpp", "src/ClientMain.cpp")
 
     -- Libraries
@@ -78,13 +74,11 @@ for _, file in ipairs(os.files("test/test_*.cpp")) do
     local name = path.basename(file)
     target(name)
         set_kind("binary")
-        set_languages("c++17")
-        add_includedirs("include")
         add_files("test/" .. name .. ".cpp")
-        
+
         set_default(false)
-        
+
         add_deps("Blitz")
-        
+
         add_tests("compile_and_run")
-end
+end