updates for new mmath library

config.nims

@@ -1,7 +1,8 @@
 # mode = ScriptMode.Whatif
 task build, "builds an example":
-  setCommand("c", "src/sdlife/main.nim")
+  setCommand("c", "src/sdlife/sdlife.nim")
   for i in 0..paramCount():
     let param = paramStr(i)
     if param == "-d:wasm":
+        mkdir("build")
         cpFile("resources/index.html", "build/index.html")

nim.cfg

@@ -3,7 +3,7 @@
 @end
 
 @if emscripten or asmjs or wasm:
-  o:"build/sdlife.js"
+  o:"build/sdlife.wasm"
   outdir:build
   @if not wasm:
     d:asmjs
@@ -15,8 +15,8 @@
   clang.options.linker = ""
   cpu = "i386"
   @if wasm:
-    passC = "-s WASM=1 -Iemscripten"
-    passL = "-s WASM=1 -Lemscripten -s ALLOW_MEMORY_GROWTH=1"
+    passC = "-s WASM=2 -Iemscripten"
+    passL = "-s WASM=2 -s ALLOW_MEMORY_GROWTH=1 -s USE_SDL=2 -s USE_SDL_GFX=2 -Lemscripten -flto"
   @elif asmjs:
     passC = "-s ASM_JS=1 -Iemscripten"
     passL = "-s ASM_JS=1 -Lemscripten"
@@ -39,7 +39,6 @@
   dynlibOverride:"SDL2_ttf"
   dynlibOverride:"SDL2_net"
   #passL %= "-s USE_SDL=2 ../libSDL2_gfx.o ../libSDL2_image-png.o ../libSDL2_ttf.o --preload-file ../assets"
-  passL %= "-s USE_SDL=2 -s USE_SDL_GFX=2"
 @else
   o:"build/sdlife"
 @end