Golang termloop.Screen類代碼示例

// Draw func
func (player *Player) Draw(screen *termloop.Screen) {
	if player.state != Dead {
		// Keep player in bounds
		x, y := player.entity.Position()
		if x < 0 {
			x = 0
		} else if x >= width {
			x = width - 1
		}

		if y < 0 {
			y = 0
		} else if y >= height {
			y = height - 1
		}

		player.entity.SetPosition(x, y)

		// Draw player
		player.entity.Draw(screen)
	}

	screenWidth, screenHeight := screen.Size()
	level.SetOffset((screenWidth-width)/2, (screenHeight-height)/2)
}

func (i *Iceblock) Draw(s *tl.Screen) {

	// if the iceblock has a direction
	if i.direction != NONE {
		// then move it in the direction specified
		i.time += s.TimeDelta()
		if i.time > i.update {
			switch i.direction {
			case RIGHT:
				i.r.SetPosition(i.endPos.x+1, i.endPos.y)
				break
			case LEFT:
				i.r.SetPosition(i.endPos.x-1, i.endPos.y)
				break
			case UP:
				i.r.SetPosition(i.endPos.x, i.endPos.y-1)
				break
			case DOWN:
				i.r.SetPosition(i.endPos.x, i.endPos.y+1)
			}
			// updated its previous position
			i.endPos.x, i.endPos.y = i.r.Position()
			i.time -= i.update
		}
	}
	i.r.Draw(s)
}

func (h *hud) Draw(screen *tl.Screen) {
	w, _ := screen.Size()
	h.offsetX = w - 80
mainLoop:
	for {
		select {
		case str := <-h.com:
			i := hudMem - 1
			for i > 0 {
				h.toDisp[i] = h.toDisp[i-1]
				if h.toDisp[i] != nil {
					h.toDisp[i].SetPosition(h.offsetX, h.offsetY+i+2)
				}
				i--
			}
			h.toDisp[0] = tl.NewText(h.offsetX, h.offsetY+2, str, Fg, Bg)
		default:
			break mainLoop
		}
	}
	for _, v := range h.toDisp {
		v.Draw(screen)
	}
	h.header.SetPosition(h.offsetX, h.offsetY)
	h.header2.SetPosition(h.offsetX, h.offsetY+1)
	h.header.Draw(screen)
	h.header2.Draw(screen)
}

func (player *Player) Draw(s *tl.Screen) {
	screenWidthidth, screenh := s.Size()
	x := player.sprite.x + screenWidthidth/2 - 30
	y := player.sprite.y + screenh - 25
	bg := tl.NewRectangle(x, y, x+20, y+10, StatsBG)
	bg.Draw(s)

	health := tl.NewText(x+1, y+1, fmt.Sprintf("%3.f%% health", float32(player.health)/float32(player.maxHealth)*100), tl.ColorRed, StatsBG)
	health.Draw(s)

	mana := tl.NewText(x+27, y+1, fmt.Sprintf("%3.f%% mana", float32(player.mana)/float32(player.maxMana)*100), tl.ColorBlue, StatsBG)
	mana.Draw(s)

	gold := tl.NewText(x+1, y+12, fmt.Sprintf("%d gold", player.gold), tl.ColorYellow, StatsBG)
	gold.Draw(s)

	experience := tl.NewText(x+29, y+12, fmt.Sprintf("%3.f%% xp", float32(player.experience)/float32(player.experienceToLevel)*100), tl.ColorMagenta, StatsBG)
	experience.Draw(s)

	if player.isCasting {
		player.isCasting = false

		newSpellEffect := NewSpellEffect(player.sprite, player.spellCanvases[player.sprite.direction], player.sprite.level)
		player.sprite.level.AddEntity(newSpellEffect)
	}

	e := tl.NewEntityFromCanvas(x+12, y+1, *player.portrait)
	e.Draw(s)
}

func (sq *Square) Draw(screen *tl.Screen) {
	if sq.visible {
		x, y := sq.getPosition()
		for i := 0; i < 5; i++ {
			screen.RenderCell(x+i, y, &sq.canvas[i])
		}
	}
}

func (text *StartLevel) Draw(screen *tl.Screen) {
	screenWidth, screenHeight := screen.Size()
	text.message.SetPosition(screenWidth/2, screenHeight/2)
	text.message.Draw(screen)
	text.instructions.SetPosition(screenWidth/2-5, screenHeight/2+1)
	text.instructions.Draw(screen)
	text.instructions2.SetPosition(screenWidth/2-5, screenHeight/2+2)
	text.instructions2.Draw(screen)
}

func (b *Block) Draw(s *tl.Screen) {
	if l, ok := b.g.Level().(*tl.BaseLevel); ok {
		// Set the level offset so the player is always in the
		// center of the screen. This simulates moving the camera.
		sw, sh := s.Size()
		x, y := b.r.Position()
		l.SetOffset(sw/2-x, sh/2-y)
	}
	b.r.Draw(s)
}

func (s *Snake) Draw(screen *tl.Screen) {
	s.bodyCollideDetect(s.px, s.py)
	// check border collision
	w, h := screen.Size()

	if s.px > w {
		s.px = 0
	} else if s.px < 0 {
		s.px = w
	}

	if s.py > h {
		s.py = 0
	} else if s.py < 0 {
		s.py = h
	}

	s.head.Draw(screen)
	s.drawBody(screen)

	if s.stop {
		return
	}

	// Control the speed.
	update := time.Now()
	delta := update.Sub(s.update).Seconds()

	if delta <= 1 {
		return
	} else {
		s.update = update
	}

	x, y := s.head.Position()
	switch s.dir {
	case KeyArrowRight:
		x += 1
		break
	case KeyArrowDown:
		y += 1
		break
	case KeyArrowLeft:
		x -= 1
		break
	case KeyArrowUp:
		y -= 1
		break
	}

	s.head.SetPosition(x, y)
	s.px = x
	s.py = y
	s.moveBody()
}

func (r *RemainingTime) Draw(s *tl.Screen) {
	if Status == 1 {
		r.t = math.Max(r.t-s.TimeDelta(), 0)
		if r.t == 0 {
			Status = 0
			r.e.SetText("Time up!")
		} else {
			if Response == 1 {
				s, _ := strconv.Atoi(r.s.Text())
				s = s + 1
				if s%5 == 0 {
					r.t = r.t + 1
				}
				r.s.SetText(strconv.Itoa(s))
				switch s {
				case 10:
					r.m.SetText("You've got it!")
				case 20:
					r.m.SetText("Keep going!")
				case 30:
					r.m.SetText("You're doing great!")
				case 40:
					r.m.SetText("You rock!")
				case 50:
					r.m.SetText("Don't stop!")
				case 60:
					r.m.SetText("I like your style!")
				case 70:
					r.m.SetText("Awesome!")
				case 80:
					r.m.SetText("How do you do that?")
				case 90:
					r.m.SetText("Don't ever stop!!")
				case 100:
					r.m.SetText("I'm really impressed.")
				case 150:
					r.m.SetText("You're really still here?")
				case 200:
					r.m.SetText("That's incredible!")
				}
			} else if Response == 2 {
				Status = 0
				r.e.SetText("Game Over")
			}
		}
		Response = 0
		r.r.SetText(fmt.Sprintf("%.3f", r.t))
	}
	r.r.Draw(s)
	r.s.Draw(s)
	r.m.Draw(s)
	r.e.Draw(s)
}

func (player *Player) Draw(screen *tl.Screen) {
	screenWidth, screenHeight := screen.Size()
	levelX, levelY := player.level.Offset()
	x, y := player.entity.Position()
	nearEdgeX := x+levelX < screenWidth/5 || x+levelX > (screenWidth-screenWidth/5)
	nearEdgeY := y+levelY < screenHeight/5 || y+levelY > (screenHeight-screenHeight/5)

	if nearEdgeX || nearEdgeY {
		player.level.SetOffset(screenWidth/2-x, screenHeight/2-y)
	}
	player.entity.Draw(screen)
}

func (food *Food) Draw(screen *tl.Screen) {
	if food.x == -1 {
		sx, sw := screen.Size()
		rx := random(1, sx)
		ry := random(1, sw)
		food.x = rx
		food.y = ry
		food.entity.SetPosition(rx, ry)
	}

	food.entity.Draw(screen)
}

func (w *welcome) Draw(screen *tl.Screen) {
	if !w.done {
		width, height := screen.Size()
		w.game.Screen().Level().(*tl.BaseLevel).SetOffset(width/2-(len(header[0])/2), height/2-(len(header)/2))
		for _, v := range w.header {
			v.Draw(screen)
		}
		w.msg.Draw(screen)
		w.choices[w.selected].SetColor(Bg, Fg)
		for _, v := range w.choices {
			v.Draw(screen)
		}
	} else {
	}
}

func (b *board) Draw(screen *tl.Screen) {
	if b.wel.done {
		b.initPlayers()
		w, h := screen.Size()
		b.level.SetOffset(w/2-((boardSize*tileSizeX)/2), h/2-((boardSize*tileSizeY)/2))
		b.tilesDisp[b.sY][b.sX].selected()
		if (b.turn == AI1 || b.turn == AI2) && b.state != WINP1 && b.state != WINP2 {
			b.handleAIInput()
		}
		for _, tY := range b.tilesDisp {
			for _, tX := range tY {
				tX.Draw(screen)
			}
		}
	}
	//TODO if b.state == WINP1 || b.state == WINP2 {
	// highlight win
}

func (body *Body) Draw(s *tl.Screen) {
	// border collision detect
	w, h := s.Size()

	if body.px > w {
		body.px = 0
	} else if body.px < 0 {
		body.px = w
	}

	if body.py > h {
		body.py = 0
	} else if body.py < 0 {
		body.py = h
	}

	body.entity.Draw(s)
}

func (gamestate *GameState) StartLevel(levelIndex int, screen *tl.Screen) {
	gamestate.LevelIndex = levelIndex
	gamestate.Level = gamestate.CreateLevelByIndex()

	gamestate.Bullets = make([]*Bullet, 0)

	gamestate.Player = NewPlayer(gamestate.Level.StartX, gamestate.Level.StartY)
	gamestate.Level.AddEntity(gamestate.Player)

	screen.SetLevel(gamestate.Level)

	screen.AddEntity(gamestate.Player.Score)
	screen.AddEntity(gamestate.Player.Level)
	screen.AddEntity(gamestate.Player.Health)

	// animate the beasts
	go func() {
		for {
			for _, enemy := range TheGameState.Level.Enemies {
				enemy.Animate()
			}
			time.Sleep(500 * time.Millisecond)
		}
	}()
}