working infinite maze

.gitignore

@@ -10,3 +10,6 @@
 
 # Output of the go coverage tool, specifically when used with LiteIDE
 *.out
+
+# Mac
+.DS_Store

assets/generate.go

@@ -0,0 +1,7 @@
+//go:generate file2byteslice -package=images -input=./images/skin.png -output=./images/skin.go -var=SkinPng
+//go:generate file2byteslice -package=images -input=./images/characters.png -output=./images/characters.go -var=CharactersPng
+//go:generate file2byteslice -package=images -input=./images/powers.png -output=./images/powers.go -var=PowersPng
+//go:generate file2byteslice -package=images -input=./images/walls.png -output=./images/walls.go -var=WallsPng
+//go:generate file2byteslice -package=fonts -input=./fonts/arcade-n.ttf -output=./fonts/arcade-n.go -var=ArcadeTTF
+
+package assets

build/pacman/main.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"github.com/skatiyar/pacman"
+)
+
+func main() {
+	game, gameErr := pacman.NewGame()
+	if gameErr != nil {
+		panic(gameErr)
+	}
+
+	if runErr := game.Run(); runErr != nil {
+		panic(runErr)
+	}
+}

characters.go

@@ -0,0 +1,85 @@
+package pacman
+
+import (
+	"bytes"
+	"image"
+	"image/png"
+
+	"github.com/hajimehoshi/ebiten"
+	"github.com/skatiyar/pacman/assets/images"
+)
+
+type Characters struct {
+	Pacman *ebiten.Image
+	Ghost1 *ebiten.Image
+	Ghost2 *ebiten.Image
+	Ghost3 *ebiten.Image
+	Ghost4 *ebiten.Image
+}
+
+func LoadCharacters() (*Characters, error) {
+	cImage, cImageErr := png.Decode(bytes.NewReader(images.CharactersPng))
+	if cImageErr != nil {
+		return nil, cImageErr
+	}
+
+	characters, charactersErr := ebiten.NewImageFromImage(cImage, ebiten.FilterDefault)
+	if charactersErr != nil {
+		return nil, charactersErr
+	}
+
+	pacman, pacmanErr := GetSprite(61, 64, 0, 0, characters)
+	if pacmanErr != nil {
+		return nil, pacmanErr
+	}
+
+	ghost1, ghost1Err := GetSprite(56, 64, 66, 0, characters)
+	if ghost1Err != nil {
+		return nil, ghost1Err
+	}
+
+	ghost2, ghost2Err := GetSprite(56, 64, 125, 0, characters)
+	if ghost2Err != nil {
+		return nil, ghost2Err
+	}
+
+	ghost3, ghost3Err := GetSprite(56, 64, 185, 0, characters)
+	if ghost3Err != nil {
+		return nil, ghost3Err
+	}
+
+	ghost4, ghost4Err := GetSprite(56, 64, 244, 0, characters)
+	if ghost4Err != nil {
+		return nil, ghost4Err
+	}
+
+	return &Characters{
+		Pacman: pacman,
+		Ghost1: ghost1,
+		Ghost2: ghost2,
+		Ghost3: ghost3,
+		Ghost4: ghost4,
+	}, nil
+}
+
+// Offset is from top left corner
+func GetSprite(
+	width, height int,
+	xoffset, yoffset int,
+	src *ebiten.Image,
+) (*ebiten.Image, error) {
+	sprite, spriteErr := ebiten.NewImage(width, height, ebiten.FilterDefault)
+	if spriteErr != nil {
+		return nil, spriteErr
+	}
+
+	rect := image.Rect(xoffset, yoffset, xoffset+width, yoffset+height)
+
+	ops := &ebiten.DrawImageOptions{}
+	ops.SourceRect = &rect
+	if drawErr := sprite.DrawImage(src, ops); drawErr != nil {
+		return nil, drawErr
+	}
+
+	return sprite, nil
+}