Attempt to start using Go Routines

robots/game.go

@@ -73,7 +73,6 @@ func initialize() (Game, error) {
 func (game *Game) gameDirector() {
 	defer quit(game)
 
-	// TODO reorder this
 	for game.gameover == 0 {
 
 		// Clean the screen
@@ -171,8 +170,8 @@ func quit(game *Game) {
 func (game *Game) randPos() Position {
 	var pos Position
 
-	x := 2 + rand.Intn(76)
-	y := 2 + rand.Intn(21)
+	x := 1 + rand.Intn(77)
+	y := 1 + rand.Intn(22)
 
 	pos.x = x
 	pos.y = y

robots/player.go

@@ -12,7 +12,7 @@ func (game *Game) movePlayer(press int) {
 	}
 
 	if press == Left {
-		if game.player.position.x != 2 {
+		if game.player.position.x != 1 {
 			game.player.position.x--
 			game.player.moves++
 		}
@@ -32,7 +32,7 @@ func (game *Game) movePlayer(press int) {
 			game.player.moves++
 		}
 	} else if press == upleft {
-		if game.player.position.x != 2 && game.player.position.y != 1 {
+		if game.player.position.x != 1 && game.player.position.y != 1 {
 			game.player.position.x--
 			game.player.position.y--
 			game.player.moves++

robots/robots.go

@@ -3,6 +3,12 @@ package robots
 func (game *Game) initRobots() {
 	var fabricate int = game.level * 16
 	for i := 0; i < fabricate; i++ {
+
+		var robot Robot
+
+		robot.id = i
+		robot.comms = make(chan Position)
+
 		var found bool
 		var rndPos Position
 		for !found {
@@ -11,11 +17,10 @@ func (game *Game) initRobots() {
 				found = true
 			}
 		}
-		rndRobot := Robot{
-			id:       i,
-			position: rndPos,
-		}
-		game.robots = append(game.robots, rndRobot)
+
+		robot.position = rndPos
+		game.robots = append(game.robots, robot)
+		go game.Robot(robot)
 	}
 }
 
@@ -26,21 +31,15 @@ func (game *Game) drawRobots() {
 }
 
 func (game *Game) moveRobots() {
+
+	var robotPos Position
+
 	// Iterate through the robots
-	for i, r := range game.robots {
+	for i, _ := range game.robots {
 
-		// Determine in which direction to go
-		if game.player.position.x < r.position.x {
-			game.robots[i].position.x--
-		} else if game.player.position.x > r.position.x {
-			game.robots[i].position.x++
-		}
-
-		if game.player.position.y < r.position.y {
-			game.robots[i].position.y--
-		} else if game.player.position.y > r.position.y {
-			game.robots[i].position.y++
-		}
+		game.robots[i].comms <- game.player.position
+		robotPos = <-game.robots[i].comms
+		game.robots[i].position = robotPos
 
 	}
 
@@ -89,14 +88,66 @@ func (game *Game) deleteRobot(robot Robot) {
 
 	var rowboz []Robot
 
+	// Delete from Array
 	for _, r := range game.robots {
-		if robot != r {
+		if robot.id != r.id {
 			rowboz = append(rowboz, r)
 		}
 	}
 	game.robots = nil
 	game.robots = rowboz
 
+	// Close the channel
+	close(robot.comms)
+
 	game.player.score++
 
 }
+
+func (game *Game) Robot(robot Robot) {
+	var player Position
+	var robotPos Position = robot.position
+	var emptyPos Position
+
+	for {
+		// Wait for input from the channel
+		player = <-robot.comms
+
+		if player == emptyPos {
+			close(robot.comms)
+			return
+		}
+
+		//fmt.Println(player, robotPos)
+
+		// Determine direction to move in
+		robotPos = game.moveRobot(player, robot.position)
+		robot.position = robotPos
+
+		// Return new position of robot
+		robot.comms <- robotPos
+	}
+
+}
+
+func (game *Game) moveRobot(player Position, robot Position) Position {
+
+	var newPosition Position
+
+	// Determine in which direction to go
+	if player.x < robot.x {
+		newPosition.x = robot.x - 1
+	} else if player.x > robot.x {
+		newPosition.x = robot.x + 1
+	}
+
+	if player.y < robot.y {
+		newPosition.y = robot.y - 1
+	} else if player.y > robot.y {
+		newPosition.y = robot.y + 1
+	}
+
+	//fmt.Println(player, robot, newPosition)
+
+	return newPosition
+}

robots/types.go

@@ -41,5 +41,6 @@ type Game struct {
 
 type Robot struct {
 	id       int
+	comms    chan Position
 	position Position
 }