Experiment with resource loading (in the form of a config file).

Change compile time checks from "if" to "when", for proper type definitions.

src/nim_wasm_test.nim

@@ -2,9 +2,23 @@
 
 import
     std/os,
-    std/strformat
+    std/parsecfg,
+    std/strformat,
+    std/strutils
 import raylib
 
+var conf: Config
+try:
+    conf = loadConfig( "resources/config.ini" )
+except IOError as err:
+    echo "No config file, using defaults."
+    conf = newConfig()
+
+when defined( emscripten ):
+    var tick = conf.getSectionValue( "Performance", "tick", defaultVal = "10").parseInt.cuint
+else:
+    var tick = conf.getSectionValue( "Performance", "tick", defaultVal = "10").parseInt
+
 # Emscripten specific imports
 proc emscripten_set_main_loop( f: proc() {.cdecl.}, a: cint, b: bool ) {.importc.}
 proc emscripten_sleep( a: cuint ) {.importc.}
@@ -48,15 +62,13 @@ proc mainLoop() {.cdecl.} =
 
         count = count + 1
 
-        if defined( emscripten ):
-            emscripten_sleep 10
-            echo "wasm: hi"
+        when defined( emscripten ):
+            emscripten_sleep( tick )
         else:
-            sleep 10
-            echo "native: hi"
+            sleep( tick )
 
 
-if defined( emscripten ):
+when defined( emscripten ):
     emscripten_set_main_loop( mainLoop, 0, true );
 else:
     mainLoop()