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img.go
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img.go
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package resources
import (
"embed"
"fmt"
"github.com/hajimehoshi/ebiten/v2"
"github.com/hajimehoshi/ebiten/v2/ebitenutil"
_ "image/jpeg" // needed for ebitenutil.NewImageFromReader()
_ "image/png" // needed for ebitenutil.NewImageFromReader()
"log"
)
// Imgs is the global variable that holds all image resources
var Imgs *ImgResources
// ImgResources is a collection of all images
type ImgResources struct {
Danger *ebiten.Image // 17 x 17
EmptyTile *ebiten.Image // 120 x 140
Error *ebiten.Image // 64 x 64
ErrorTile *ebiten.Image // 120 x 140
Explosion *ebiten.Image // 64 x 64
Eye *ebiten.Image // 26 x 15
Logo *ebiten.Image // 64 x 64
Artillery *ebiten.Image // 50 x 50
Soldier *ebiten.Image // 50 x 50
Tank *ebiten.Image // 50 x 50
TilesBase [2]*ebiten.Image // 120 x 140
TilesDirt [1]*ebiten.Image // 120 x 140
TilesForest [4]*ebiten.Image // 120 x 140
TilesGrass [1]*ebiten.Image // 120 x 140
TilesHill [1]*ebiten.Image // 120 x 140
TilesHole [3]*ebiten.Image // 120 x 140
TilesMountain [3]*ebiten.Image // 120 x 140
TilesStructure [13]*ebiten.Image // 120 x 140
TilesWater [1]*ebiten.Image // 120 x 140
}
func init() {
Imgs = &ImgResources{
Danger: loadGameImg("img/danger.png"),
EmptyTile: loadGameImg("img/empty-tile.png"),
Error: loadGameImg("img/error.png"),
ErrorTile: loadGameImg("img/error-tile.png"),
Explosion: loadGameImg("img/explosion.png"),
Eye: loadGameImg("img/eye.png"),
Logo: loadGameImg("img/logo.png"),
Artillery: loadGameImg("img/artillery.png"),
Soldier: loadGameImg("img/soldier.png"),
Tank: loadGameImg("img/tank.png"),
}
for i := 0; i < len(Imgs.TilesBase); i++ {
Imgs.TilesBase[i] = loadGameImg(fmt.Sprintf("img/base/%d.png", i+1))
}
for i := 0; i < len(Imgs.TilesDirt); i++ {
Imgs.TilesDirt[i] = loadGameImg(fmt.Sprintf("img/dirt/%d.png", i+1))
}
for i := 0; i < len(Imgs.TilesForest); i++ {
Imgs.TilesForest[i] = loadGameImg(fmt.Sprintf("img/forest/%d.png", i+1))
}
for i := 0; i < len(Imgs.TilesGrass); i++ {
Imgs.TilesGrass[i] = loadGameImg(fmt.Sprintf("img/grass/%d.png", i+1))
}
for i := 0; i < len(Imgs.TilesHill); i++ {
Imgs.TilesHill[i] = loadGameImg(fmt.Sprintf("img/hill/%d.png", i+1))
}
for i := 0; i < len(Imgs.TilesHole); i++ {
Imgs.TilesHole[i] = loadGameImg(fmt.Sprintf("img/hole/%d.png", i+1))
}
for i := 0; i < len(Imgs.TilesMountain); i++ {
Imgs.TilesMountain[i] = loadGameImg(fmt.Sprintf("img/mountain/%d.png", i+1))
}
for i := 0; i < len(Imgs.TilesStructure); i++ {
Imgs.TilesStructure[i] = loadGameImg(fmt.Sprintf("img/structure/%d.png", i+1))
}
for i := 0; i < len(Imgs.TilesWater); i++ {
Imgs.TilesWater[i] = loadGameImg(fmt.Sprintf("img/water/%d.png", i+1))
}
}
//go:embed img
var gFS embed.FS
func loadGameImg(name string) *ebiten.Image {
// open reader
r, err := gFS.Open(name)
if err != nil {
log.Fatalf("err: loadGameImg: %v\n", err)
}
// get image
eim, _, err := ebitenutil.NewImageFromReader(r)
if err != nil {
log.Fatalf("err: loadGameImg: %v\n", err)
}
// return
return eim
}