add new third-lib libkey that includes function: kbhit,getch,nonblock

test/module_test.nas

@@ -1,16 +1,5 @@
 import("lib.nas");
-
-var libfib=func(){
-    var dl=dylib.dlopen("./module/libfib."~(os.platform()=="windows"?"dll":"so"));
-    var fib=dylib.dlsym(dl,"fib");
-    var qfib=dylib.dlsym(dl,"quick_fib");
-    var call=dylib.dlcall;
-    return
-    {
-        fib: func(x){return call(fib,x)},
-        qfib:func(x){return call(qfib,x)}
-    };
-}();
+import("./module/libfib.nas");
 
 println(libfib);
 println(libfib.fib(29));

test/tetris.nas

@@ -0,0 +1,58 @@
+import("lib.nas");
+import("module/libkey.nas");
+
+var brick=[
+    [
+        [1,1],
+        [1,0],
+        [1,0]
+    ],
+    [
+        [0,1],
+        [1,1],
+        [1,0]
+    ],
+    [
+        [1,1],
+        [0,1],
+        [0,1],
+    ],
+    [
+        [1,0],
+        [1,1],
+        [0,1]
+    ],
+    [
+        [1,1,1,1]
+    ],
+    [
+        [1,1],
+        [1,1]
+    ],
+    [
+        [0,1,0],
+        [1,1,1]
+    ]
+];
+
+func(){
+    libkey.init();
+    print('\ec');
+    var cnt=0;
+    while(1){
+        var ch=libkey.nonblock();
+        ch=ch?chr(ch)~chr(ch):"[]";
+        var s="\ec+--------------+\n";
+        var normal="|              |\n";
+        var character="|      "~ch~"      |\n";
+        for(var i=0;i<6;i+=1)
+            s~=(i==cnt)?character:normal;
+        s~="+--------------+\n";
+        print(s);
+        unix.sleep(0.3);
+        cnt+=1;
+        if(cnt==6)
+            cnt=0;
+    }
+    libkey.close();
+}();