vendor dependencies, make some changes to how input is done

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

@@ -0,0 +1,173 @@
+// Copyright 2018 The Ebiten 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.
+
+package ebiten
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"runtime"
+	"time"
+
+	"github.com/hajimehoshi/ebiten/v2/internal/debug"
+	"github.com/hajimehoshi/ebiten/v2/internal/ui"
+)
+
+func datetimeForFilename() string {
+	const datetimeFormat = "20060102150405"
+	now := time.Now()
+	return now.Format(datetimeFormat)
+}
+
+func takeScreenshot(screen *Image, transparent bool) error {
+	name := "screenshot_" + datetimeForFilename() + ".png"
+	// Use the home directory for mobiles as a provisional implementation.
+	if runtime.GOOS == "android" || runtime.GOOS == "ios" {
+		home, err := os.UserHomeDir()
+		if err != nil {
+			return err
+		}
+		name = filepath.Join(home, name)
+	}
+	dumpedName, err := screen.image.DumpScreenshot(name, !transparent)
+	if err != nil {
+		return err
+	}
+	if _, err := fmt.Fprintf(os.Stderr, "Saved screenshot: %s\n", dumpedName); err != nil {
+		return err
+	}
+	return nil
+}
+
+func dumpInternalImages() error {
+	dumpedDir, err := ui.Get().DumpImages("internalimages_" + datetimeForFilename())
+	if err != nil {
+		return err
+	}
+	// Use the home directory for mobiles as a provisional implementation.
+	if runtime.GOOS == "android" || runtime.GOOS == "ios" {
+		home, err := os.UserHomeDir()
+		if err != nil {
+			return err
+		}
+		dumpedDir = filepath.Join(home, dumpedDir)
+	}
+	if _, err := fmt.Fprintf(os.Stderr, "Dumped the internal images at: %s\n", dumpedDir); err != nil {
+		return err
+	}
+	return nil
+}
+
+type imageDumper struct {
+	keyState map[Key]int
+
+	hasScreenshotKey bool
+	screenshotKey    Key
+	toTakeScreenshot bool
+
+	hasDumpInternalImagesKey bool
+	dumpInternalImagesKey    Key
+	toDumpInternalImages     bool
+
+	err error
+}
+
+func envScreenshotKey() string {
+	if env := os.Getenv("EBITENGINE_SCREENSHOT_KEY"); env != "" {
+		return env
+	}
+	// For backward compatibility, read the EBITEN_ version.
+	return os.Getenv("EBITEN_SCREENSHOT_KEY")
+}
+
+func envInternalImagesKey() string {
+	if env := os.Getenv("EBITENGINE_INTERNAL_IMAGES_KEY"); env != "" {
+		return env
+	}
+	// For backward compatibility, read the EBITEN_ version.
+	return os.Getenv("EBITEN_INTERNAL_IMAGES_KEY")
+}
+
+func (i *imageDumper) update() error {
+	if i.err != nil {
+		return i.err
+	}
+
+	// If keyState is nil, all values are not initialized.
+	if i.keyState == nil {
+		i.keyState = map[Key]int{}
+
+		if keyname := envScreenshotKey(); keyname != "" {
+			if key, ok := keyNameToKeyCode(keyname); ok {
+				i.hasScreenshotKey = true
+				i.screenshotKey = key
+			}
+		}
+
+		if keyname := envInternalImagesKey(); keyname != "" {
+			if debug.IsDebug {
+				if key, ok := keyNameToKeyCode(keyname); ok {
+					i.hasDumpInternalImagesKey = true
+					i.dumpInternalImagesKey = key
+				}
+			} else {
+				fmt.Fprintf(os.Stderr, "EBITENGINE_INTERNAL_IMAGES_KEY is disabled. Specify a build tag 'ebitenginedebug' to enable it.\n")
+			}
+		}
+	}
+
+	keys := map[Key]struct{}{}
+	if i.hasScreenshotKey {
+		keys[i.screenshotKey] = struct{}{}
+	}
+	if i.hasDumpInternalImagesKey {
+		keys[i.dumpInternalImagesKey] = struct{}{}
+	}
+
+	for key := range keys {
+		if IsKeyPressed(key) {
+			i.keyState[key]++
+			if i.keyState[key] == 1 {
+				if i.hasScreenshotKey && key == i.screenshotKey {
+					i.toTakeScreenshot = true
+				}
+				if i.hasDumpInternalImagesKey && key == i.dumpInternalImagesKey {
+					i.toDumpInternalImages = true
+				}
+			}
+		} else {
+			i.keyState[key] = 0
+		}
+	}
+	return nil
+}
+
+func (i *imageDumper) dump(screen *Image, transparent bool) error {
+	if i.toTakeScreenshot {
+		i.toTakeScreenshot = false
+		if err := takeScreenshot(screen, transparent); err != nil {
+			return err
+		}
+	}
+
+	if i.toDumpInternalImages {
+		i.toDumpInternalImages = false
+		if err := dumpInternalImages(); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}