package main import ( "log" "fmt" "github.com/gdamore/tcell/v2" "github.com/gdamore/tcell/v2/encoding" ) //// DRAWING func (game *Game) DrawText(x int, y int, text string) { for i, cell := range text { game.Screen.SetContent(x+i, y, cell, nil, tcell.StyleDefault) } } func (game *Game) DrawStatus() { game.DrawText(0, game.Height, game.Status) hp := fmt.Sprintf("HP: %d", game.Player.HP) game.DrawText(game.Width - len(hp), game.Height, hp) } func (game *Game) SetStatus(msg string) { game.Status = msg } func (game *Game) DrawEntity(symbol rune, pos Position, color tcell.Color) { style := tcell.StyleDefault.Bold(true).Foreground(color) game.Screen.SetContent(pos.X, pos.Y, symbol, nil, style) } func (game *Game) DrawMap() { gray := tcell.StyleDefault.Foreground(tcell.ColorGray) for y, line := range game.Level { for x, cell := range line { if cell == SPACE { game.Screen.SetContent(x, y, cell, nil, gray) } else { game.Screen.SetContent(x, y, cell, nil, tcell.StyleDefault) } } } } ///// RENDERING func (game *Game) InitScreen() { var err error encoding.Register() game.Screen, err = tcell.NewScreen() // using log.Fatal instead of dbg.Fatal // because the screen isn't setup yet if err != nil { log.Fatal(err) } err = game.Screen.Init() if err != nil { log.Fatal(err) } } func (game *Game) Render() { if !RENDER { return } game.Screen.Clear() game.DrawMap() game.DrawEntity('@', game.Player.Pos, tcell.ColorYellow) if SHOW_PATHS { game.DrawPaths() } for pos, _ := range game.Enemies { game.DrawEntity('G', pos, tcell.ColorRed) } game.DrawStatus() game.Screen.Show() } //// EVENTS func (game *Game) HandleKeys(ev *tcell.EventKey) bool { switch ev.Key() { case tcell.KeyEscape: return false case tcell.KeyUp: game.MovePlayer(0, -1) case tcell.KeyDown: game.MovePlayer(0, 1) case tcell.KeyRight: game.MovePlayer(1, 0) case tcell.KeyLeft: game.MovePlayer(-1, 0) } switch ev.Rune() { case 'q': return false } return true } func (game *Game) HandleEvents() bool { if !RENDER { return false } switch ev := game.Screen.PollEvent().(type) { case *tcell.EventResize: game.Screen.Sync() case *tcell.EventKey: return game.HandleKeys(ev) } return true }