mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-10 04:57:26 +01:00
61 lines
1.6 KiB
Go
61 lines
1.6 KiB
Go
// Copyright 2021 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 main
|
|
|
|
import (
|
|
"bytes"
|
|
"image"
|
|
_ "image/png"
|
|
|
|
"github.com/hajimehoshi/ebiten/v2"
|
|
"github.com/hajimehoshi/ebiten/v2/examples/resources/images"
|
|
)
|
|
|
|
// SpriteSheet represents a collection of sprite images.
|
|
type SpriteSheet struct {
|
|
Floor *ebiten.Image
|
|
Wall *ebiten.Image
|
|
Statue *ebiten.Image
|
|
Tube *ebiten.Image
|
|
Crown *ebiten.Image
|
|
Portal *ebiten.Image
|
|
}
|
|
|
|
// LoadSpriteSheet loads the embedded SpriteSheet.
|
|
func LoadSpriteSheet(tileSize int) (*SpriteSheet, error) {
|
|
img, _, err := image.Decode(bytes.NewReader(images.Spritesheet_png))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
sheet := ebiten.NewImageFromImage(img)
|
|
|
|
// spriteAt returns a sprite at the provided coordinates.
|
|
spriteAt := func(x, y int) *ebiten.Image {
|
|
return sheet.SubImage(image.Rect(x*tileSize, (y+1)*tileSize, (x+1)*tileSize, y*tileSize)).(*ebiten.Image)
|
|
}
|
|
|
|
// Populate SpriteSheet.
|
|
s := &SpriteSheet{}
|
|
s.Floor = spriteAt(10, 4)
|
|
s.Wall = spriteAt(2, 3)
|
|
s.Statue = spriteAt(5, 4)
|
|
s.Tube = spriteAt(3, 4)
|
|
s.Crown = spriteAt(8, 6)
|
|
s.Portal = spriteAt(5, 6)
|
|
|
|
return s, nil
|
|
}
|