61 lines
1.3 KiB
Go
61 lines
1.3 KiB
Go
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package main
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import (
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"image/color"
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"github.com/hajimehoshi/ebiten/v2"
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)
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//Viewer is a graphical representation of a freego game
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type Viewer struct {
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input *Input
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board *ViewBoard
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boardImage *ebiten.Image
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gameState *Game
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}
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//NewViewer creates a new viewer
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func NewViewer(g *Game) (*Viewer, error) {
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v := &Viewer{
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input: NewInput(),
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gameState: g,
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}
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var err error
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v.board, err = NewViewBoard(g)
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if err != nil {
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panic(err)
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}
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return v, nil
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}
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// Layout implements ebiten.Game's Layout.
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func (v *Viewer) Layout(outsideWidth, outsideHeight int) (screenWidth, screenHeight int) {
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return 800, 640
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}
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// Update updates the current game state.
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func (v *Viewer) Update() error {
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v.input.Update()
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if err := v.board.Update(v.input); err != nil {
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return err
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}
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return nil
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}
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// Draw draws the current game to the given screen.
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func (v *Viewer) Draw(screen *ebiten.Image) {
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if v.boardImage == nil {
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w, h := v.board.Size()
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v.boardImage = ebiten.NewImage(w, h)
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}
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screen.Fill(color.RGBA{0xfa, 0xf8, 0xef, 0xff})
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v.board.Draw(v.boardImage)
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op := &ebiten.DrawImageOptions{}
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sw, sh := screen.Size()
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bw, bh := v.boardImage.Size()
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x := (sw - bw) / 2
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y := (sh - bh) / 2
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op.GeoM.Translate(float64(x), float64(y))
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screen.DrawImage(v.boardImage, op)
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}
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