63 lines
1.6 KiB
Go
63 lines
1.6 KiB
Go
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package main
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import (
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"image"
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_ "image/png"
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"github.com/hajimehoshi/ebiten/v2"
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)
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// EnvironmentSpriteSheet represents a collection of sprite images.
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type EnvironmentSpriteSheet struct {
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FloorA *ebiten.Image
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FloorB *ebiten.Image
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FloorC *ebiten.Image
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WallTop *ebiten.Image
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WallBottom *ebiten.Image
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WallBottomLeft *ebiten.Image
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WallBottomRight *ebiten.Image
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WallLeft *ebiten.Image
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WallRight *ebiten.Image
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WallTopLeft *ebiten.Image
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WallTopRight *ebiten.Image
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WallPillar *ebiten.Image
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}
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// LoadEnvironmentSpriteSheet loads the embedded EnvironmentSpriteSheet.
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func LoadEnvironmentSpriteSheet() (*EnvironmentSpriteSheet, error) {
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tileSize := 32
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f, err := assetsFS.Open("assets/sandstone-dungeon/Tiles-SandstoneDungeons.png")
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if err != nil {
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return nil, err
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}
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img, _, err := image.Decode(f)
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if err != nil {
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return nil, err
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}
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sheet := ebiten.NewImageFromImage(img)
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// spriteAt returns a sprite at the provided coordinates.
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spriteAt := func(x, y int) *ebiten.Image {
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return sheet.SubImage(image.Rect(x*tileSize, (y+1)*tileSize, (x+1)*tileSize, y*tileSize)).(*ebiten.Image)
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}
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// Populate EnvironmentSpriteSheet.
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s := &EnvironmentSpriteSheet{}
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s.FloorA = spriteAt(3, 1)
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s.FloorB = spriteAt(2, 0)
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s.FloorC = spriteAt(2, 1)
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s.WallTop = spriteAt(1, 2)
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s.WallBottom = spriteAt(1, 6)
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s.WallBottomLeft = spriteAt(2, 6)
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s.WallBottomRight = spriteAt(0, 6)
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s.WallLeft = spriteAt(2, 2)
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s.WallRight = spriteAt(0, 2)
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s.WallTopLeft = spriteAt(2, 3)
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s.WallTopRight = spriteAt(0, 3)
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s.WallPillar = spriteAt(8, 4)
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return s, nil
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}
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