vendor dependencies, make some changes to how input is done

vendor/github.com/hajimehoshi/ebiten/v2/internal/ui/run.go

@@ -0,0 +1,93 @@
+// Copyright 2023 The Ebitengine Authors
+//
+// 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.
+
+//go:build !android && !ios
+
+package ui
+
+import (
+	stdcontext "context"
+	"runtime"
+
+	"golang.org/x/sync/errgroup"
+
+	"github.com/hajimehoshi/ebiten/v2/internal/graphicscommand"
+	"github.com/hajimehoshi/ebiten/v2/internal/thread"
+)
+
+func (u *UserInterface) Run(game Game, options *RunOptions) error {
+	if options.SingleThread || buildTagSingleThread || runtime.GOOS == "js" {
+		return u.runSingleThread(game, options)
+	}
+	return u.runMultiThread(game, options)
+}
+
+func (u *UserInterface) runMultiThread(game Game, options *RunOptions) error {
+	u.mainThread = thread.NewOSThread()
+	graphicscommand.SetOSThreadAsRenderThread()
+
+	// Set the running state true after the main thread is set, and before initOnMainThread is called (#2742).
+	// TODO: As the existence of the main thread is the same as the value of `running`, this is redundant.
+	// Make `mainThread` atomic and remove `running` if possible.
+	u.setRunning(true)
+	defer u.setRunning(false)
+
+	u.context = newContext(game)
+
+	if err := u.initOnMainThread(options); err != nil {
+		return err
+	}
+
+	ctx, cancel := stdcontext.WithCancel(stdcontext.Background())
+	defer cancel()
+
+	var wg errgroup.Group
+
+	// Run the render thread.
+	wg.Go(func() error {
+		defer cancel()
+		graphicscommand.LoopRenderThread(ctx)
+		return nil
+	})
+
+	// Run the game thread.
+	wg.Go(func() error {
+		defer cancel()
+		return u.loopGame()
+	})
+
+	// Run the main thread.
+	_ = u.mainThread.Loop(ctx)
+	return wg.Wait()
+}
+
+func (u *UserInterface) runSingleThread(game Game, options *RunOptions) error {
+	// Initialize the main thread first so the thread is available at u.run (#809).
+	u.mainThread = thread.NewNoopThread()
+
+	u.setRunning(true)
+	defer u.setRunning(false)
+
+	u.context = newContext(game)
+
+	if err := u.initOnMainThread(options); err != nil {
+		return err
+	}
+
+	if err := u.loopGame(); err != nil {
+		return err
+	}
+
+	return nil
+}