vendor dependencies, make some changes to how input is done

vendor/github.com/hajimehoshi/ebiten/v2/mousebuttons.go

@@ -0,0 +1,36 @@
+// Copyright 2015 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 ebiten
+
+import (
+	"github.com/hajimehoshi/ebiten/v2/internal/ui"
+)
+
+// A MouseButton represents a mouse button.
+type MouseButton = ui.MouseButton
+
+// MouseButtons
+const (
+	MouseButtonLeft   MouseButton = MouseButton0
+	MouseButtonMiddle MouseButton = MouseButton1
+	MouseButtonRight  MouseButton = MouseButton2
+
+	MouseButton0   MouseButton = ui.MouseButton0
+	MouseButton1   MouseButton = ui.MouseButton1
+	MouseButton2   MouseButton = ui.MouseButton2
+	MouseButton3   MouseButton = ui.MouseButton3
+	MouseButton4   MouseButton = ui.MouseButton4
+	MouseButtonMax MouseButton = MouseButton4
+)