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62 lines
1.6 KiB
62 lines
1.6 KiB
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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