Attempt to start using Go Routines

.gitignore

@@ -1,23 +1 @@
-# ---> Go
-# If you prefer the allow list template instead of the deny list, see community template:
-# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore
-#
-# Binaries for programs and plugins
-*.exe
-*.exe~
-*.dll
-*.so
-*.dylib
-
-# Test binary, built with `go test -c`
-*.test
-
-# Output of the go coverage tool, specifically when used with LiteIDE
-*.out
-
-# Dependency directories (remove the comment below to include it)
-# vendor/
-
-# Go workspace file
-go.work
-
+builds

README.md

@@ -2,6 +2,33 @@
 
 A clone of the video game Chase/Robots written in Go. Primary goal is to deepen my knowledge and understanding of the Go programming language.
 
+```
+╔══════════════════════════════════════════════════════════════════════════════╗
+║                                                                              ║
+║                                                                              ║
+║                +                                                             ║
+║                                                                              ║
+║        +                                                                     ║
+║                           +      +                                           ║
+║           +                                                                  ║
+║  +                                                                           ║
+║                                                                              ║
+║                                                                           +  ║
+║                                                                           +  ║
+║                         +             @                                      ║
+║                                                                      +       ║
+║                                                                              ║
+║                                                                              ║
+║                +                                                             ║
+║     +                                                                        ║
+║                                 +                                            ║
+║                                                                           +  ║
+║                    +                                                         ║
+║                                                                         +    ║
+║                                                                              ║
+╚════[ Score: 0 Level: 1 ]═════════════════════════════════════════════════════╝
+```
+
 ## Gameplay
 * As described here: https://en.wikipedia.org/wiki/Chase_(video_game)
 
@@ -12,3 +39,13 @@ The tool will be written in Go exploring the following:
 * Localities
 * Interfaces
 * Generics (if possible)
+
+## Phases
+### Step 1: Finish the game
+* ~~Make the game in a functioning state~~
+### Step 2: Split into modules
+* ~~Split the game in separate module~~
+### Step 3: Go routines
+* Put robots in separate go routines and experiment with localities
+### Step 4: Beautify the game
+* Work on [#8](https://gitea.ligthert.net/golang/rowboz/issues/8), [#9](https://gitea.ligthert.net/golang/rowboz/issues/9), [#10](https://gitea.ligthert.net/golang/rowboz/issues/10) and make it something nice to look at.

build.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+mkdir -p builds
+
+rm builds/*
+
+go tool dist list | grep -v android | grep -v ios | grep -v wasip1 | awk -F '/' '{printf "echo Compiling %s/%s; env CGO_ENABLED=1 GOOS=%s GOARCH=%s go build -o builds/rowboz.%s-%s\n",$1,$2,$1,$2,$1,$2 }' | sh
+
+cd builds
+for i in `ls *windows*`; do mv -v $i $i.exe; done

design.md

@@ -1,26 +0,0 @@
-# Design
-
-Gameplay: See https://en.wikipedia.org/wiki/Chase_%28video_game%29
-
-controls: wasd + qezc
-Teleport key: t
-
-`@`: player
-`+`: drone
-`*`: wrecks
-
-Playfield: 80x24 - Display message when windows is too small
-
-Interfaces:
-Game
- - Screen
- - Gamestate
- - Styles?
- - Player
-    - Score
-    - Position
-    - Moves
- - []Robots
-    - Channel name
-    - Go routine reference?
-    

go.mod

@@ -1,15 +1,15 @@
 module gitea.ligthert.net/golang/rowboz
 
-go 1.21.4
+go 1.21.5
 
-require github.com/gdamore/tcell/v2 v2.6.0
+require github.com/gdamore/tcell/v2 v2.7.0
 
 require (
 	github.com/gdamore/encoding v1.0.0 // indirect
 	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
-	github.com/mattn/go-runewidth v0.0.14 // indirect
+	github.com/mattn/go-runewidth v0.0.15 // indirect
 	github.com/rivo/uniseg v0.4.3 // indirect
-	golang.org/x/sys v0.5.0 // indirect
-	golang.org/x/term v0.5.0 // indirect
-	golang.org/x/text v0.7.0 // indirect
+	golang.org/x/sys v0.15.0 // indirect
+	golang.org/x/term v0.15.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
 )

go.sum

@@ -1,11 +1,11 @@
 github.com/gdamore/encoding v1.0.0 h1:+7OoQ1Bc6eTm5niUzBa0Ctsh6JbMW6Ra+YNuAtDBdko=
 github.com/gdamore/encoding v1.0.0/go.mod h1:alR0ol34c49FCSBLjhosxzcPHQbf2trDkoo5dl+VrEg=
-github.com/gdamore/tcell/v2 v2.6.0 h1:OKbluoP9VYmJwZwq/iLb4BxwKcwGthaa1YNBJIyCySg=
-github.com/gdamore/tcell/v2 v2.6.0/go.mod h1:be9omFATkdr0D9qewWW3d+MEvl5dha+Etb5y65J2H8Y=
+github.com/gdamore/tcell/v2 v2.7.0 h1:I5LiGTQuwrysAt1KS9wg1yFfOI3arI3ucFrxtd/xqaA=
+github.com/gdamore/tcell/v2 v2.7.0/go.mod h1:hl/KtAANGBecfIPxk+FzKvThTqI84oplgbPEmVX60b8=
 github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
 github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
-github.com/mattn/go-runewidth v0.0.14 h1:+xnbZSEeDbOIg5/mE6JF0w6n9duR1l3/WmbinWVwUuU=
-github.com/mattn/go-runewidth v0.0.14/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/mattn/go-runewidth v0.0.15 h1:UNAjwbU9l54TA3KzvqLGxwWjHmMgBUVhBiTjelZgg3U=
+github.com/mattn/go-runewidth v0.0.15/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.4.3 h1:utMvzDsuh3suAEnhH0RdHmoPbU648o6CvXxTx4SBMOw=
 github.com/rivo/uniseg v0.4.3/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
@@ -13,28 +13,35 @@ github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5t
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
+golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
+golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.15.0 h1:h48lPFYpsTvQJZF4EKyI4aLHaev3CxivZmv7yZig9pc=
+golang.org/x/sys v0.15.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
-golang.org/x/term v0.5.0 h1:n2a8QNdAb0sZNpU9R1ALUXBbY+w51fCQDN+7EdxNBsY=
 golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
+golang.org/x/term v0.15.0 h1:y/Oo/a/q3IXu26lQgl04j/gjuBDOBlx7X6Om1j2CPW4=
+golang.org/x/term v0.15.0/go.mod h1:BDl952bC7+uMoWR75FIrCDx79TPU9oHkTZ9yRbYOrX0=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.7.0 h1:4BRB4x83lYWy72KwLD/qYDuTu7q9PjSagHvijDw7cLo=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
+golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
+golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
+golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

main.go

@@ -1,5 +1,7 @@
 package main
 
+import "gitea.ligthert.net/golang/rowboz/robots"
+
 func main() {
-	gameinit()
+	robots.GameInit()
 }

robots.go

@@ -1,111 +0,0 @@
-package main
-
-func (game *Game) initRobots() {
-	var fabricate int = game.level * 16
-	for i := 0; i < fabricate; i++ {
-		var found bool
-		var rndPos Position
-		for !found {
-			rndPos = game.randPos()
-			if !game.onPlayer(rndPos) {
-				found = true
-			}
-		}
-		game.robots = append(game.robots, rndPos)
-	}
-}
-
-func (game *Game) drawRobots() {
-	for _, r := range game.robots {
-		game.screen.SetContent(r.x, r.y, '+', nil, game.style)
-	}
-}
-
-func (game *Game) moveRobots() {
-	// Iterate through the robots
-	for i, r := range game.robots {
-
-		// Determine in which direction to go
-		if game.player.position.x < r.x {
-			game.robots[i].x--
-		} else if game.player.position.x > r.x {
-			game.robots[i].x++
-		}
-
-		if game.player.position.y < r.y {
-			game.robots[i].y--
-		} else if game.player.position.y > r.y {
-			game.robots[i].y++
-		}
-
-	}
-
-	// After all the moves, lets check if any of the rowboz collided with anything
-	for i, r := range game.robots {
-
-		// Hit a player? Game over!
-		if game.onPlayer(r) {
-			game.gameover = 1
-			return
-		}
-
-		// Robots mingling? Trash!
-		if game.onRobot(i, r) {
-
-			// Delete robot
-			game.deleteRobot(i)
-
-			// Create trash
-			game.addTrash(r)
-
-		}
-
-		// Hugging Trash? More trash!
-		if game.onTrash(r) {
-
-			// Delete robot
-			game.deleteRobot(i)
-
-		}
-
-	}
-}
-
-func (game *Game) onRobot(index int, pos Position) bool {
-	var found bool = false
-	for i, r := range game.robots {
-		if index != i && pos == r {
-			found = true
-		}
-	}
-	return found
-}
-
-// TODO: improve this
-func (game *Game) deleteRobot(robot int) {
-
-	// The following would work, if it wasn't for the fact you are iterating through an array,
-	// and deleting elements form that same array. So deleting item #15 isn't going to work
-	// when the array has been reduced to 13 elements.
-	// if robot < len(game.robots) {
-	// 	game.robots = append(game.robots[:robot], game.robots[robot+1:]...)
-	// }
-
-	// This isn't going to work for the same reason,
-	// and it adds the issue that random robots will get deleted.
-	// var rowboz []Position
-
-	// for i, r := range game.robots {
-	// 	if robot != i {
-	// 		rowboz = append(rowboz, r)
-	// 	}
-	// }
-
-	// game.robots = nil
-	// game.robots = rowboz
-
-	// Conclusion: I need to find a different way to do this properly while iterating to that same array.
-
-	game.player.score++
-
-}

robots/game.go

@@ -1,4 +1,4 @@
-package main
+package robots
 
 import (
 	"fmt"
@@ -8,7 +8,7 @@ import (
 	"github.com/gdamore/tcell/v2"
 )
 
-func gameinit() {
+func GameInit() {
 	game, err := initialize()
 	if err != nil {
 		log.Fatalln("Initilization error: ", err)
@@ -19,19 +19,15 @@ func gameinit() {
 	// Quit the screen
 	quit(&game)
 
-	// fmt.Println("\nDebug time: Trash")
-	// for i, t := range game.trash {
-	// 	fmt.Println("Trash: ", i, t)
-	// }
-
 	// Give closure
 	if game.gameover == 1 {
-		fmt.Println("\nYou got rekt by a robot")
+		fmt.Println("You got rekt by a robot")
 	} else if game.gameover == 2 {
-		fmt.Println("\nYou took the easy way out")
+		fmt.Println("You took the easy way out")
 	}
 
 	fmt.Println("Score:", game.player.score)
+	fmt.Println("Level: ", game.level)
 	fmt.Println("Moves:", game.player.moves)
 	fmt.Println("Teleports:", game.player.teleports)
 
@@ -65,9 +61,7 @@ func initialize() (Game, error) {
 			moves:     0,
 			teleports: 0,
 		},
-		level: 1,
-		// robots:   []Robot, // I need this maybe
-		// trash: []Position, // I will need this
+		level:    1,
 		gameover: 0,
 	}
 
@@ -79,23 +73,24 @@ func initialize() (Game, error) {
 func (game *Game) gameDirector() {
 	defer quit(game)
 
-	// TODO reorder this
 	for game.gameover == 0 {
 
 		// Clean the screen
 		game.screen.Clear()
 
+		// Draw robots??
+		if len(game.robots) == 0 {
+			game.level++
+			game.cleanTrash()
+			game.resetPlayer()
+			game.initRobots()
+		}
+
 		// Draw starter conditions
 		game.drawBox()
 		game.drawPlayer()
 		//game.drawCoords()
 
-		// Draw robots??
-		if len(game.robots) == 0 {
-			game.level++
-			game.cleanTrash()
-			game.initRobots()
-		}
 		game.drawRobots()
 
 		// Draw my ex-wife
@@ -165,7 +160,6 @@ func (game *Game) keyboardProcessor() {
 }
 
 func quit(game *Game) {
-	// game.screen.Clear()
 	maybePanic := recover()
 	game.screen.Fini()
 	if maybePanic != nil {

robots/player.go

@@ -1,12 +1,18 @@
-package main
+package robots
 
 func (game *Game) drawPlayer() {
 	game.screen.SetContent(game.player.position.x, game.player.position.y, '@', nil, game.style)
 }
 
 func (game *Game) movePlayer(press int) {
+
+	if game.blockedByTrash(press) {
+		game.player.moves++
+		return
+	}
+
 	if press == Left {
-		if game.player.position.x != 2 {
+		if game.player.position.x != 1 {
 			game.player.position.x--
 			game.player.moves++
 		}
@@ -26,7 +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++
@@ -55,10 +61,53 @@ func (game *Game) movePlayer(press int) {
 	}
 }
 
+// blockedByTrash() Checks if player can move into a direction and if trash isn't blocking
+func (game *Game) blockedByTrash(press int) bool {
+	var checkPos Position
+
+	if press == Left {
+		checkPos.x = game.player.position.x - 1
+		checkPos.y = game.player.position.y
+	} else if press == Right {
+		checkPos.x = game.player.position.x + 1
+		checkPos.y = game.player.position.y
+	} else if press == Up {
+		checkPos.x = game.player.position.x
+		checkPos.y = game.player.position.y - 1
+	} else if press == Down {
+		checkPos.x = game.player.position.x
+		checkPos.y = game.player.position.y + 1
+	} else if press == upleft {
+		checkPos.x = game.player.position.x - 1
+		checkPos.y = game.player.position.y - 1
+	} else if press == upright {
+		checkPos.x = game.player.position.x + 1
+		checkPos.y = game.player.position.y - 1
+	} else if press == downright {
+		checkPos.x = game.player.position.x + 1
+		checkPos.y = game.player.position.y + 1
+	} else if press == downleft {
+		checkPos.x = game.player.position.x - 1
+		checkPos.y = game.player.position.y + 1
+	}
+	return game.onTrash(checkPos)
+}
+
 func (game *Game) teleport() {
-	pos := game.randPos()
+
+	var pos Position
+	var safe bool = false
+
+	for !safe {
+		pos = game.randPos()
+		if !game.onTrash(pos) {
+			safe = true
+		}
+	}
+
 	game.player.position.x = pos.x
 	game.player.position.y = pos.y
+
 }
 
 func (game *Game) onPlayer(pos Position) bool {
@@ -70,3 +119,8 @@ func (game *Game) onPlayer(pos Position) bool {
 	}
 	return onPlayer
 }
+
+func (game *Game) resetPlayer() {
+	game.player.position.x = 40
+	game.player.position.y = 12
+}

robots/render.go

@@ -1,4 +1,4 @@
-package main
+package robots
 
 import (
 	"runtime"

robots/robots.go

@@ -0,0 +1,153 @@
+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 {
+			rndPos = game.randPos()
+			if !game.onPlayer(rndPos) {
+				found = true
+			}
+		}
+
+		robot.position = rndPos
+		game.robots = append(game.robots, robot)
+		go game.Robot(robot)
+	}
+}
+
+func (game *Game) drawRobots() {
+	for _, r := range game.robots {
+		game.screen.SetContent(r.position.x, r.position.y, '+', nil, game.style)
+	}
+}
+
+func (game *Game) moveRobots() {
+
+	var robotPos Position
+
+	// Iterate through the robots
+	for i, _ := range game.robots {
+
+		game.robots[i].comms <- game.player.position
+		robotPos = <-game.robots[i].comms
+		game.robots[i].position = robotPos
+
+	}
+
+	// After all the moves, lets check if any of the rowboz collided with anything
+	for _, r := range game.robots {
+
+		// Hit a player? Game over!
+		if game.onPlayer(r.position) {
+			game.gameover = 1
+			return
+		}
+
+		// Robots mingling? Trash!
+		if game.onRobot(r) {
+
+			// Delete robot
+			game.deleteRobot(r)
+
+			// Create trash
+			game.addTrash(r)
+
+		}
+
+		// Hugging Trash? More trash!
+		if game.onTrash(r.position) {
+
+			// Delete robot
+			game.deleteRobot(r)
+
+		}
+
+	}
+}
+
+func (game *Game) onRobot(robot Robot) bool {
+	var found bool = false
+	for _, r := range game.robots {
+		if robot.id != r.id && robot.position == r.position {
+			found = true
+		}
+	}
+	return found
+}
+
+func (game *Game) deleteRobot(robot Robot) {
+
+	var rowboz []Robot
+
+	// Delete from Array
+	for _, r := range game.robots {
+		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/trash.go

@@ -1,4 +1,4 @@
-package main
+package robots
 
 func (game *Game) drawTrash() {
 	for _, t := range game.trash {
@@ -16,8 +16,8 @@ func (game *Game) onTrash(pos Position) bool {
 	return found
 }
 
-func (game *Game) addTrash(pos Position) {
-	game.trash = append(game.trash, pos)
+func (game *Game) addTrash(robot Robot) {
+	game.trash = append(game.trash, robot.position)
 }
 
 func (game *Game) cleanTrash() {

robots/types.go

@@ -1,6 +1,8 @@
-package main
+package robots
 
-import "github.com/gdamore/tcell/v2"
+import (
+	"github.com/gdamore/tcell/v2"
+)
 
 const (
 	Up = iota
@@ -32,7 +34,13 @@ type Game struct {
 	keypresses chan int
 	player     Player
 	level      int
-	robots     []Position
+	robots     []Robot
 	trash      []Position
 	gameover   int
 }
+
+type Robot struct {
+	id       int
+	comms    chan Position
+	position Position
+}