diff --git a/docs/demo_web.js b/docs/demo_web.js
index 9dcc65fe..b661dae9 100644
--- a/docs/demo_web.js
+++ b/docs/demo_web.js
@@ -213,39 +213,42 @@ function makeMutClosure(arg0, arg1, dtor, f) {
     return real;
 }
 function __wbg_adapter_24(arg0, arg1) {
-    wasm._dyn_core__ops__function__FnMut_____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__hcf118a068d67b888(arg0, arg1);
+    wasm._dyn_core__ops__function__FnMut_____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__hdf96b8ee714f1c46(arg0, arg1);
 }
 
-function __wbg_adapter_27(arg0, arg1) {
-    wasm._dyn_core__ops__function__FnMut_____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__ha5199f647b73bd92(arg0, arg1);
+function __wbg_adapter_27(arg0, arg1, arg2) {
+    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h3ab34346949ecee9(arg0, arg1, addHeapObject(arg2));
 }
 
 function __wbg_adapter_30(arg0, arg1, arg2) {
-    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h263b0f4bde31efb0(arg0, arg1, addHeapObject(arg2));
+    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h3ab34346949ecee9(arg0, arg1, addHeapObject(arg2));
 }
 
 function __wbg_adapter_33(arg0, arg1, arg2) {
-    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h263b0f4bde31efb0(arg0, arg1, addHeapObject(arg2));
+    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h3ab34346949ecee9(arg0, arg1, addHeapObject(arg2));
 }
 
 function __wbg_adapter_36(arg0, arg1, arg2) {
-    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h263b0f4bde31efb0(arg0, arg1, addHeapObject(arg2));
+    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h3ab34346949ecee9(arg0, arg1, addHeapObject(arg2));
 }
 
-function __wbg_adapter_39(arg0, arg1, arg2) {
-    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h263b0f4bde31efb0(arg0, arg1, addHeapObject(arg2));
+function __wbg_adapter_39(arg0, arg1) {
+    wasm._dyn_core__ops__function__FnMut_____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h48aae558e546c91e(arg0, arg1);
 }
 
 function __wbg_adapter_42(arg0, arg1, arg2) {
-    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h263b0f4bde31efb0(arg0, arg1, addHeapObject(arg2));
+    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h3ab34346949ecee9(arg0, arg1, addHeapObject(arg2));
 }
 
 function __wbg_adapter_45(arg0, arg1, arg2) {
-    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__hd5c13e870f8bfcb3(arg0, arg1, addHeapObject(arg2));
+    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__hf7aa4fb686f03bd6(arg0, arg1, addHeapObject(arg2));
 }
 
 /**
 * This is the entry-point for all the web-assembly.
+* This is called once from the HTML.
+* It loads the app, installs some callbacks, then returns.
+* You can add more callbacks like this if you want to call in to your code.
 * @param {string} canvas_id
 */
 __exports.start = function(canvas_id) {
@@ -374,6 +377,10 @@ async function init(input) {
         var ret = getObject(arg0).requestAnimationFrame(getObject(arg1));
         return ret;
     });
+    imports.wbg.__wbg_setInterval_06df6f1ebeafd66f = handleError(function(arg0, arg1, arg2) {
+        var ret = getObject(arg0).setInterval(getObject(arg1), arg2);
+        return ret;
+    });
     imports.wbg.__wbg_body_8c888fe47d81765f = function(arg0) {
         var ret = getObject(arg0).body;
         return isLikeNone(ret) ? 0 : addHeapObject(ret);
@@ -382,6 +389,38 @@ async function init(input) {
         var ret = getObject(arg0).getElementById(getStringFromWasm0(arg1, arg2));
         return isLikeNone(ret) ? 0 : addHeapObject(ret);
     };
+    imports.wbg.__wbindgen_object_clone_ref = function(arg0) {
+        var ret = getObject(arg0);
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbg_setProperty_42eabadfcd7d6199 = handleError(function(arg0, arg1, arg2, arg3, arg4) {
+        getObject(arg0).setProperty(getStringFromWasm0(arg1, arg2), getStringFromWasm0(arg3, arg4));
+    });
+    imports.wbg.__wbg_addEventListener_9e7b0c3f65ebc0d7 = handleError(function(arg0, arg1, arg2, arg3) {
+        getObject(arg0).addEventListener(getStringFromWasm0(arg1, arg2), getObject(arg3));
+    });
+    imports.wbg.__wbg_getItem_cb17cd47353971da = handleError(function(arg0, arg1, arg2, arg3) {
+        var ret = getObject(arg1).getItem(getStringFromWasm0(arg2, arg3));
+        var ptr0 = isLikeNone(ret) ? 0 : passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
+        var len0 = WASM_VECTOR_LEN;
+        getInt32Memory0()[arg0 / 4 + 1] = len0;
+        getInt32Memory0()[arg0 / 4 + 0] = ptr0;
+    });
+    imports.wbg.__wbg_setItem_71df4161bb87d575 = handleError(function(arg0, arg1, arg2, arg3, arg4) {
+        getObject(arg0).setItem(getStringFromWasm0(arg1, arg2), getStringFromWasm0(arg3, arg4));
+    });
+    imports.wbg.__wbg_writeText_f87e9b63346a7e47 = function(arg0, arg1, arg2) {
+        var ret = getObject(arg0).writeText(getStringFromWasm0(arg1, arg2));
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbg_deltaX_ee242e8414135d41 = function(arg0) {
+        var ret = getObject(arg0).deltaX;
+        return ret;
+    };
+    imports.wbg.__wbg_deltaY_35bf8632b9f25820 = function(arg0) {
+        var ret = getObject(arg0).deltaY;
+        return ret;
+    };
     imports.wbg.__wbg_now_49847177a6d1d57e = function(arg0) {
         var ret = getObject(arg0).now();
         return ret;
@@ -416,10 +455,17 @@ async function init(input) {
         var ret = getObject(arg0).pageY;
         return ret;
     };
-    imports.wbg.__wbg_get_814461b8584a55e7 = function(arg0, arg1) {
-        var ret = getObject(arg0)[arg1 >>> 0];
+    imports.wbg.__wbg_clipboardData_d3dc621a701f9c49 = function(arg0) {
+        var ret = getObject(arg0).clipboardData;
         return isLikeNone(ret) ? 0 : addHeapObject(ret);
     };
+    imports.wbg.__wbg_getData_0a2347233cf89d01 = handleError(function(arg0, arg1, arg2, arg3) {
+        var ret = getObject(arg1).getData(getStringFromWasm0(arg2, arg3));
+        var ptr0 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
+        var len0 = WASM_VECTOR_LEN;
+        getInt32Memory0()[arg0 / 4 + 1] = len0;
+        getInt32Memory0()[arg0 / 4 + 0] = ptr0;
+    });
     imports.wbg.__wbg_keyCode_689d196ab65a93d7 = function(arg0) {
         var ret = getObject(arg0).keyCode;
         return ret;
@@ -451,31 +497,10 @@ async function init(input) {
         getInt32Memory0()[arg0 / 4 + 1] = len0;
         getInt32Memory0()[arg0 / 4 + 0] = ptr0;
     };
-    imports.wbg.__wbg_touches_1cfb9ad18bd08588 = function(arg0) {
-        var ret = getObject(arg0).touches;
-        return addHeapObject(ret);
-    };
-    imports.wbg.__wbg_getData_0a2347233cf89d01 = handleError(function(arg0, arg1, arg2, arg3) {
-        var ret = getObject(arg1).getData(getStringFromWasm0(arg2, arg3));
-        var ptr0 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
-        var len0 = WASM_VECTOR_LEN;
-        getInt32Memory0()[arg0 / 4 + 1] = len0;
-        getInt32Memory0()[arg0 / 4 + 0] = ptr0;
-    });
-    imports.wbg.__wbg_preventDefault_93d06688748bfc14 = function(arg0) {
-        getObject(arg0).preventDefault();
-    };
-    imports.wbg.__wbg_stopPropagation_a47dd3b6ffe6b400 = function(arg0) {
-        getObject(arg0).stopPropagation();
-    };
-    imports.wbg.__wbg_clipboardData_d3dc621a701f9c49 = function(arg0) {
-        var ret = getObject(arg0).clipboardData;
+    imports.wbg.__wbg_get_814461b8584a55e7 = function(arg0, arg1) {
+        var ret = getObject(arg0)[arg1 >>> 0];
         return isLikeNone(ret) ? 0 : addHeapObject(ret);
     };
-    imports.wbg.__wbg_clipboard_7862c97f3561ff94 = function(arg0) {
-        var ret = getObject(arg0).clipboard;
-        return addHeapObject(ret);
-    };
     imports.wbg.__wbg_getBoundingClientRect_c6d612c06726983e = function(arg0) {
         var ret = getObject(arg0).getBoundingClientRect();
         return addHeapObject(ret);
@@ -602,10 +627,23 @@ async function init(input) {
     imports.wbg.__wbg_log_3bafd82835c6de6d = function(arg0) {
         console.log(getObject(arg0));
     };
+    imports.wbg.__wbg_warn_d05e82888b7fad05 = function(arg0) {
+        console.warn(getObject(arg0));
+    };
     imports.wbg.__wbg_style_9a41d46c005f7596 = function(arg0) {
         var ret = getObject(arg0).style;
         return addHeapObject(ret);
     };
+    imports.wbg.__wbg_preventDefault_93d06688748bfc14 = function(arg0) {
+        getObject(arg0).preventDefault();
+    };
+    imports.wbg.__wbg_stopPropagation_a47dd3b6ffe6b400 = function(arg0) {
+        getObject(arg0).stopPropagation();
+    };
+    imports.wbg.__wbg_touches_1cfb9ad18bd08588 = function(arg0) {
+        var ret = getObject(arg0).touches;
+        return addHeapObject(ret);
+    };
     imports.wbg.__wbg_top_a6f8db7db6d2bf17 = function(arg0) {
         var ret = getObject(arg0).top;
         return ret;
@@ -614,9 +652,10 @@ async function init(input) {
         var ret = getObject(arg0).left;
         return ret;
     };
-    imports.wbg.__wbg_setProperty_42eabadfcd7d6199 = handleError(function(arg0, arg1, arg2, arg3, arg4) {
-        getObject(arg0).setProperty(getStringFromWasm0(arg1, arg2), getStringFromWasm0(arg3, arg4));
-    });
+    imports.wbg.__wbg_clipboard_7862c97f3561ff94 = function(arg0) {
+        var ret = getObject(arg0).clipboard;
+        return addHeapObject(ret);
+    };
     imports.wbg.__wbg_hash_1e68d402e53cef74 = handleError(function(arg0, arg1) {
         var ret = getObject(arg1).hash;
         var ptr0 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
@@ -624,16 +663,6 @@ async function init(input) {
         getInt32Memory0()[arg0 / 4 + 1] = len0;
         getInt32Memory0()[arg0 / 4 + 0] = ptr0;
     });
-    imports.wbg.__wbg_getItem_cb17cd47353971da = handleError(function(arg0, arg1, arg2, arg3) {
-        var ret = getObject(arg1).getItem(getStringFromWasm0(arg2, arg3));
-        var ptr0 = isLikeNone(ret) ? 0 : passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
-        var len0 = WASM_VECTOR_LEN;
-        getInt32Memory0()[arg0 / 4 + 1] = len0;
-        getInt32Memory0()[arg0 / 4 + 0] = ptr0;
-    });
-    imports.wbg.__wbg_setItem_71df4161bb87d575 = handleError(function(arg0, arg1, arg2, arg3, arg4) {
-        getObject(arg0).setItem(getStringFromWasm0(arg1, arg2), getStringFromWasm0(arg3, arg4));
-    });
     imports.wbg.__wbg_clientX_c1a2c3a6a07188a2 = function(arg0) {
         var ret = getObject(arg0).clientX;
         return ret;
@@ -642,29 +671,10 @@ async function init(input) {
         var ret = getObject(arg0).clientY;
         return ret;
     };
-    imports.wbg.__wbg_writeText_f87e9b63346a7e47 = function(arg0, arg1, arg2) {
-        var ret = getObject(arg0).writeText(getStringFromWasm0(arg1, arg2));
-        return addHeapObject(ret);
-    };
-    imports.wbg.__wbg_addEventListener_9e7b0c3f65ebc0d7 = handleError(function(arg0, arg1, arg2, arg3) {
-        getObject(arg0).addEventListener(getStringFromWasm0(arg1, arg2), getObject(arg3));
-    });
-    imports.wbg.__wbg_deltaX_ee242e8414135d41 = function(arg0) {
-        var ret = getObject(arg0).deltaX;
-        return ret;
-    };
-    imports.wbg.__wbg_deltaY_35bf8632b9f25820 = function(arg0) {
-        var ret = getObject(arg0).deltaY;
-        return ret;
-    };
     imports.wbg.__wbg_call_8e95613cc6524977 = handleError(function(arg0, arg1) {
         var ret = getObject(arg0).call(getObject(arg1));
         return addHeapObject(ret);
     });
-    imports.wbg.__wbindgen_object_clone_ref = function(arg0) {
-        var ret = getObject(arg0);
-        return addHeapObject(ret);
-    };
     imports.wbg.__wbg_newnoargs_f3b8a801d5d4b079 = function(arg0, arg1) {
         var ret = new Function(getStringFromWasm0(arg0, arg1));
         return addHeapObject(ret);
@@ -781,36 +791,36 @@ async function init(input) {
         var ret = wasm.memory;
         return addHeapObject(ret);
     };
-    imports.wbg.__wbindgen_closure_wrapper398 = function(arg0, arg1, arg2) {
-        var ret = makeMutClosure(arg0, arg1, 86, __wbg_adapter_24);
+    imports.wbg.__wbindgen_closure_wrapper414 = function(arg0, arg1, arg2) {
+        var ret = makeMutClosure(arg0, arg1, 90, __wbg_adapter_24);
         return addHeapObject(ret);
     };
-    imports.wbg.__wbindgen_closure_wrapper399 = function(arg0, arg1, arg2) {
-        var ret = makeMutClosure(arg0, arg1, 86, __wbg_adapter_27);
+    imports.wbg.__wbindgen_closure_wrapper415 = function(arg0, arg1, arg2) {
+        var ret = makeMutClosure(arg0, arg1, 90, __wbg_adapter_27);
         return addHeapObject(ret);
     };
-    imports.wbg.__wbindgen_closure_wrapper402 = function(arg0, arg1, arg2) {
-        var ret = makeMutClosure(arg0, arg1, 86, __wbg_adapter_30);
+    imports.wbg.__wbindgen_closure_wrapper417 = function(arg0, arg1, arg2) {
+        var ret = makeMutClosure(arg0, arg1, 90, __wbg_adapter_30);
         return addHeapObject(ret);
     };
-    imports.wbg.__wbindgen_closure_wrapper404 = function(arg0, arg1, arg2) {
-        var ret = makeMutClosure(arg0, arg1, 86, __wbg_adapter_33);
+    imports.wbg.__wbindgen_closure_wrapper419 = function(arg0, arg1, arg2) {
+        var ret = makeMutClosure(arg0, arg1, 90, __wbg_adapter_33);
         return addHeapObject(ret);
     };
-    imports.wbg.__wbindgen_closure_wrapper406 = function(arg0, arg1, arg2) {
-        var ret = makeMutClosure(arg0, arg1, 86, __wbg_adapter_36);
+    imports.wbg.__wbindgen_closure_wrapper421 = function(arg0, arg1, arg2) {
+        var ret = makeMutClosure(arg0, arg1, 90, __wbg_adapter_36);
         return addHeapObject(ret);
     };
-    imports.wbg.__wbindgen_closure_wrapper408 = function(arg0, arg1, arg2) {
-        var ret = makeMutClosure(arg0, arg1, 86, __wbg_adapter_39);
+    imports.wbg.__wbindgen_closure_wrapper423 = function(arg0, arg1, arg2) {
+        var ret = makeMutClosure(arg0, arg1, 90, __wbg_adapter_39);
         return addHeapObject(ret);
     };
-    imports.wbg.__wbindgen_closure_wrapper410 = function(arg0, arg1, arg2) {
-        var ret = makeMutClosure(arg0, arg1, 86, __wbg_adapter_42);
+    imports.wbg.__wbindgen_closure_wrapper426 = function(arg0, arg1, arg2) {
+        var ret = makeMutClosure(arg0, arg1, 90, __wbg_adapter_42);
         return addHeapObject(ret);
     };
-    imports.wbg.__wbindgen_closure_wrapper452 = function(arg0, arg1, arg2) {
-        var ret = makeMutClosure(arg0, arg1, 106, __wbg_adapter_45);
+    imports.wbg.__wbindgen_closure_wrapper1117 = function(arg0, arg1, arg2) {
+        var ret = makeMutClosure(arg0, arg1, 127, __wbg_adapter_45);
         return addHeapObject(ret);
     };
 
diff --git a/docs/demo_web_bg.wasm b/docs/demo_web_bg.wasm
index 5e7156a4..eb9d87ad 100644
Binary files a/docs/demo_web_bg.wasm and b/docs/demo_web_bg.wasm differ
diff --git a/docs/example_web.js b/docs/example_web.js
index 9776bf10..61637bf4 100644
--- a/docs/example_web.js
+++ b/docs/example_web.js
@@ -213,35 +213,35 @@ function makeMutClosure(arg0, arg1, dtor, f) {
     return real;
 }
 function __wbg_adapter_26(arg0, arg1) {
-    wasm._dyn_core__ops__function__FnMut_____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h131d7a2b30673af8(arg0, arg1);
+    wasm._dyn_core__ops__function__FnMut_____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__hdf96b8ee714f1c46(arg0, arg1);
 }
 
 function __wbg_adapter_29(arg0, arg1, arg2) {
-    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h1fcff379f8a91500(arg0, arg1, addHeapObject(arg2));
+    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h3ab34346949ecee9(arg0, arg1, addHeapObject(arg2));
 }
 
 function __wbg_adapter_32(arg0, arg1, arg2) {
-    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h1fcff379f8a91500(arg0, arg1, addHeapObject(arg2));
+    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h3ab34346949ecee9(arg0, arg1, addHeapObject(arg2));
 }
 
-function __wbg_adapter_35(arg0, arg1) {
-    wasm._dyn_core__ops__function__FnMut_____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h41cd408ae7dd46f7(arg0, arg1);
+function __wbg_adapter_35(arg0, arg1, arg2) {
+    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h3ab34346949ecee9(arg0, arg1, addHeapObject(arg2));
 }
 
 function __wbg_adapter_38(arg0, arg1, arg2) {
-    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h1fcff379f8a91500(arg0, arg1, addHeapObject(arg2));
+    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h3ab34346949ecee9(arg0, arg1, addHeapObject(arg2));
 }
 
-function __wbg_adapter_41(arg0, arg1, arg2) {
-    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h1fcff379f8a91500(arg0, arg1, addHeapObject(arg2));
+function __wbg_adapter_41(arg0, arg1) {
+    wasm._dyn_core__ops__function__FnMut_____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h48aae558e546c91e(arg0, arg1);
 }
 
 function __wbg_adapter_44(arg0, arg1, arg2) {
-    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h1fcff379f8a91500(arg0, arg1, addHeapObject(arg2));
+    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h3ab34346949ecee9(arg0, arg1, addHeapObject(arg2));
 }
 
 function __wbg_adapter_47(arg0, arg1, arg2) {
-    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__h42bc6cd1f6265a35(arg0, arg1, addHeapObject(arg2));
+    wasm._dyn_core__ops__function__FnMut__A____Output___R_as_wasm_bindgen__closure__WasmClosure___describe__invoke__hf7aa4fb686f03bd6(arg0, arg1, addHeapObject(arg2));
 }
 
 /**
@@ -381,6 +381,10 @@ async function init(input) {
         var ret = getObject(arg0).fetch(getObject(arg1));
         return addHeapObject(ret);
     };
+    imports.wbg.__wbg_setInterval_06df6f1ebeafd66f = handleError(function(arg0, arg1, arg2) {
+        var ret = getObject(arg0).setInterval(getObject(arg1), arg2);
+        return ret;
+    });
     imports.wbg.__wbg_body_8c888fe47d81765f = function(arg0) {
         var ret = getObject(arg0).body;
         return isLikeNone(ret) ? 0 : addHeapObject(ret);
@@ -866,36 +870,36 @@ async function init(input) {
         var ret = wasm.memory;
         return addHeapObject(ret);
     };
+    imports.wbg.__wbindgen_closure_wrapper747 = function(arg0, arg1, arg2) {
+        var ret = makeMutClosure(arg0, arg1, 211, __wbg_adapter_26);
+        return addHeapObject(ret);
+    };
     imports.wbg.__wbindgen_closure_wrapper748 = function(arg0, arg1, arg2) {
-        var ret = makeMutClosure(arg0, arg1, 214, __wbg_adapter_26);
+        var ret = makeMutClosure(arg0, arg1, 211, __wbg_adapter_29);
         return addHeapObject(ret);
     };
-    imports.wbg.__wbindgen_closure_wrapper749 = function(arg0, arg1, arg2) {
-        var ret = makeMutClosure(arg0, arg1, 214, __wbg_adapter_29);
+    imports.wbg.__wbindgen_closure_wrapper750 = function(arg0, arg1, arg2) {
+        var ret = makeMutClosure(arg0, arg1, 211, __wbg_adapter_32);
         return addHeapObject(ret);
     };
-    imports.wbg.__wbindgen_closure_wrapper751 = function(arg0, arg1, arg2) {
-        var ret = makeMutClosure(arg0, arg1, 214, __wbg_adapter_32);
+    imports.wbg.__wbindgen_closure_wrapper752 = function(arg0, arg1, arg2) {
+        var ret = makeMutClosure(arg0, arg1, 211, __wbg_adapter_35);
         return addHeapObject(ret);
     };
-    imports.wbg.__wbindgen_closure_wrapper753 = function(arg0, arg1, arg2) {
-        var ret = makeMutClosure(arg0, arg1, 214, __wbg_adapter_35);
+    imports.wbg.__wbindgen_closure_wrapper754 = function(arg0, arg1, arg2) {
+        var ret = makeMutClosure(arg0, arg1, 211, __wbg_adapter_38);
         return addHeapObject(ret);
     };
-    imports.wbg.__wbindgen_closure_wrapper755 = function(arg0, arg1, arg2) {
-        var ret = makeMutClosure(arg0, arg1, 214, __wbg_adapter_38);
+    imports.wbg.__wbindgen_closure_wrapper756 = function(arg0, arg1, arg2) {
+        var ret = makeMutClosure(arg0, arg1, 211, __wbg_adapter_41);
         return addHeapObject(ret);
     };
-    imports.wbg.__wbindgen_closure_wrapper758 = function(arg0, arg1, arg2) {
-        var ret = makeMutClosure(arg0, arg1, 214, __wbg_adapter_41);
+    imports.wbg.__wbindgen_closure_wrapper759 = function(arg0, arg1, arg2) {
+        var ret = makeMutClosure(arg0, arg1, 211, __wbg_adapter_44);
         return addHeapObject(ret);
     };
-    imports.wbg.__wbindgen_closure_wrapper760 = function(arg0, arg1, arg2) {
-        var ret = makeMutClosure(arg0, arg1, 214, __wbg_adapter_44);
-        return addHeapObject(ret);
-    };
-    imports.wbg.__wbindgen_closure_wrapper1496 = function(arg0, arg1, arg2) {
-        var ret = makeMutClosure(arg0, arg1, 252, __wbg_adapter_47);
+    imports.wbg.__wbindgen_closure_wrapper1498 = function(arg0, arg1, arg2) {
+        var ret = makeMutClosure(arg0, arg1, 251, __wbg_adapter_47);
         return addHeapObject(ret);
     };
 
diff --git a/docs/example_web_bg.wasm b/docs/example_web_bg.wasm
index a3801a77..f3565f25 100644
Binary files a/docs/example_web_bg.wasm and b/docs/example_web_bg.wasm differ