mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-10 04:57:26 +01:00
97 lines
2.2 KiB
Go
97 lines
2.2 KiB
Go
// 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.
|
|
|
|
package main
|
|
|
|
import (
|
|
"image/png"
|
|
"log"
|
|
|
|
"github.com/hajimehoshi/ebiten/v2"
|
|
"github.com/hajimehoshi/ebiten/v2/ebitenutil"
|
|
)
|
|
|
|
type Game struct {
|
|
images []*ebiten.Image
|
|
}
|
|
|
|
func (g *Game) Update() error {
|
|
for _, f := range ebiten.AppendDroppedFiles(nil) {
|
|
// Calling Close is not mandatory, but it is sligtly good to save memory.
|
|
defer func() {
|
|
_ = f.Close()
|
|
}()
|
|
|
|
fi, err := f.Stat()
|
|
if err != nil {
|
|
log.Printf("%v", err)
|
|
continue
|
|
}
|
|
log.Printf("Name: %s, Size: %d, IsDir: %t, ModTime: %v", fi.Name(), fi.Size(), fi.IsDir(), fi.ModTime())
|
|
|
|
img, err := png.Decode(f)
|
|
if err != nil {
|
|
log.Printf("decoding PNG failed: %v", err)
|
|
continue
|
|
}
|
|
g.images = append(g.images, ebiten.NewImageFromImage(img))
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (g *Game) Draw(screen *ebiten.Image) {
|
|
if len(g.images) == 0 {
|
|
ebitenutil.DebugPrint(screen, "Drop PNG files onto this window!")
|
|
return
|
|
}
|
|
|
|
const imageSize = 128
|
|
xcount := screen.Bounds().Dx() / imageSize
|
|
if xcount == 0 {
|
|
return
|
|
}
|
|
|
|
for i, img := range g.images {
|
|
x := (i % xcount) * imageSize
|
|
y := (i / xcount) * imageSize
|
|
|
|
s := imageSize / float64(img.Bounds().Dx())
|
|
if sy := imageSize / float64(img.Bounds().Dy()); s > sy {
|
|
s = sy
|
|
}
|
|
if s > 1 {
|
|
s = 1
|
|
}
|
|
|
|
op := &ebiten.DrawImageOptions{}
|
|
op.GeoM.Scale(s, s)
|
|
op.GeoM.Translate(float64(x), float64(y))
|
|
op.Filter = ebiten.FilterLinear
|
|
screen.DrawImage(img, op)
|
|
}
|
|
}
|
|
|
|
func (g *Game) Layout(outsideWidth, outsideHeight int) (int, int) {
|
|
return outsideWidth, outsideHeight
|
|
}
|
|
|
|
func main() {
|
|
ebiten.SetWindowResizable(true)
|
|
ebiten.SetWindowTitle("Dropping Files (Ebitengine Demo)")
|
|
if err := ebiten.RunGame(&Game{}); err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
}
|