vendor dependencies, make some changes to how input is done

vendor/github.com/hajimehoshi/ebiten/v2/internal/clock/now.go

@@ -0,0 +1,27 @@
+// Copyright 2016 Hajime Hoshi
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package clock
+
+import (
+	"time"
+)
+
+var initTime = time.Now()
+
+func now() int64 {
+	// time.Since() returns monotonic timer difference (#875):
+	// https://pkg.go.dev/time#hdr-Monotonic_Clocks
+	return int64(time.Since(initTime))
+}