Merge pull request #25 from josephbmanley/feature/player

Character Controller!

client/.import/dev_player.png-a3e490acef445550df71bca0ea3173dc.md5

@@ -0,0 +1,3 @@
+source_md5="8aa11b5093dfa6e5ad8586cfd48b6e88"
+dest_md5="1922a2eba76828665cd680a720666fe8"
+

client/art/entities/player/dev_player.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/dev_player.png-a3e490acef445550df71bca0ea3173dc.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://art/entities/player/dev_player.png"
+dest_files=[ "res://.import/dev_player.png-a3e490acef445550df71bca0ea3173dc.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=false
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=true
+svg/scale=1.0

client/export_presets.cfg

@@ -7,7 +7,7 @@ custom_features=""
 export_filter="all_resources"
 include_filter=""
 exclude_filter=""
-export_path=""
+export_path="builds/Family.x86_64"
 patch_list=PoolStringArray(  )
 script_export_mode=1
 script_encryption_key=""

client/nodes/Systems/PlayerPuppeteer.tscn

@@ -0,0 +1,8 @@
+[gd_scene load_steps=3 format=2]
+
+[ext_resource path="res://scripts/systems/PlayerPuppeteer.gd" type="Script" id=1]
+[ext_resource path="res://nodes/entities/PlayerPuppet.tscn" type="PackedScene" id=2]
+
+[node name="PlayerPuppeteer" type="Node2D"]
+script = ExtResource( 1 )
+puppet_template = ExtResource( 2 )

client/nodes/entities/Player.tscn

@@ -0,0 +1,21 @@
+[gd_scene load_steps=3 format=2]
+
+[ext_resource path="res://art/entities/player/dev_player.png" type="Texture" id=1]
+[ext_resource path="res://scripts/entities/Player.gd" type="Script" id=2]
+
+[node name="Player" type="KinematicBody2D"]
+script = ExtResource( 2 )
+__meta__ = {
+"_edit_group_": true
+}
+
+[node name="Sprite" type="Sprite" parent="."]
+texture = ExtResource( 1 )
+
+[node name="Camera2D" type="Camera2D" parent="."]
+current = true
+zoom = Vector2( 0.5, 0.5 )
+
+[node name="Line2D" type="Line2D" parent="."]
+width = 4.0
+default_color = Color( 1, 0, 0, 1 )

client/nodes/entities/PlayerPuppet.tscn

@@ -0,0 +1,6 @@
+[gd_scene load_steps=2 format=2]
+
+[ext_resource path="res://art/entities/player/dev_player.png" type="Texture" id=1]
+
+[node name="PlayerPuppet" type="Sprite"]
+texture = ExtResource( 1 )

client/project.godot

@@ -107,6 +107,14 @@ config/icon="res://icon.png"
 Nakama="*res://addons/com.heroiclabs.nakama/Nakama.gd"
 ServerConnection="*res://scripts/singletons/ServerConnection.gd"
 
+[input]
+
+move_to_cursor={
+"deadzone": 0.5,
+"events": [ Object(InputEventMouseButton,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"button_mask":0,"position":Vector2( 0, 0 ),"global_position":Vector2( 0, 0 ),"factor":1.0,"button_index":1,"pressed":false,"doubleclick":false,"script":null)
+ ]
+}
+
 [rendering]
 
 quality/driver/driver_name="GLES2"

client/scripts/entities/Player.gd

@@ -0,0 +1,39 @@
+extends KinematicBody2D
+
+signal finished_moving
+
+export var base_movement_speed = 100
+export(NodePath) var world
+
+onready var navigation : Navigation2D = get_node(world)
+var path : PoolVector2Array
+var move : bool = false
+
+func _process(delta):
+	
+	# Click for movement target
+	if Input.is_action_just_pressed("move_to_cursor"):
+		path = navigation.get_simple_path(global_position, get_global_mouse_position())
+		move = true
+	
+	if move:
+		move_along_path(base_movement_speed * delta)
+		ServerConnection.send_player_position(global_position)
+
+func move_along_path(distance : float):
+	var start_point := global_position
+	for i in range(path.size()):
+		var distance_to_next := start_point.distance_to(path[0])
+		if distance <= distance_to_next and distance >= 0.0:
+			global_position = start_point.linear_interpolate(path[0], distance/distance_to_next)
+			break
+		elif distance < 0.0:
+			global_position = path[0]
+			emit_signal("finished_moving")
+			print("DONE")
+			move = false
+			break
+		distance -= distance_to_next
+		start_point = path[0]
+		path.remove(0)
+

client/scripts/singletons/ServerConnection.gd

@@ -1,6 +1,9 @@
 extends Node
 
 signal tile_update(tile_data)
+signal player_joined(user_id)
+signal player_left(user_id)
+signal player_pos_update(user_id, pos)
 
 const KEY := "defaultkey"
 const SERVER_ENDPOINT := "nakama.cloudsumu.com"
@@ -9,9 +12,11 @@ var _session : NakamaSession
 var _client : NakamaClient = Nakama.create_client(KEY, SERVER_ENDPOINT, 7350, "http")
 var _socket : NakamaSocket
 var _precenses : Dictionary = {}
+var _world_id
 
 enum OPCODE {
-	tile_update = 1
+	tile_update = 1,
+	update_position = 2
 }
 
 func authenticate_async(email : String, password : String) -> NakamaException:
@@ -43,6 +48,7 @@ func connect_to_server_async() -> NakamaException:
 	var result : NakamaAsyncResult = yield(_socket.connect_async(_session), "completed")
 	if not result.is_exception():
 		_socket.connect("received_match_state", self, "_on_socket_received_match_state")
+		_socket.connect("received_match_presence", self, "_on_received_match_presence")
 		_socket.connect("closed", self, "_on_socket_closed")
 		return null
 	return result.exception
@@ -58,8 +64,11 @@ func join_world_async() -> Dictionary:
 		print("Join match error: %s - %s" % [match_join_result.exception.status_code, match_join_result.exception.message])
 		return {}
 		
+	_world_id = world.payload
+	
 	for precense in match_join_result.presences:
 		_precenses[precense.user_id] = precense
+		emit_signal("player_joined", precense.user_id)
 		
 	print("Joined matched with %s other players!" % _precenses.size())
 
@@ -68,8 +77,25 @@ func join_world_async() -> Dictionary:
 func _on_socket_closed():
 	_socket = null
 
+func _on_received_match_presence(match_precense : NakamaRTAPI.MatchPresenceEvent):
+	for precense in match_precense.joins:
+		print("%s joined the game!" % precense.username)
+		_precenses[precense.user_id] = precense
+		emit_signal("player_joined", precense.user_id)
+		
+	for precense in match_precense.leaves:
+		print("%s left the game!" % precense.username)
+		_precenses.erase(precense.user_id)
+		emit_signal("player_left", precense.user_id)
+
 func _on_socket_received_match_state(match_state: NakamaRTAPI.MatchData):
 	match match_state.op_code:
 		OPCODE.tile_update:
 			emit_signal("tile_update", JSON.parse(match_state.data).result)
+		OPCODE.update_position:
+			var pos_data = JSON.parse(match_state.data).result
+			emit_signal("player_pos_update", pos_data["player"], Vector2(float(pos_data["x"]), float(pos_data["y"])))
+
+func send_player_position(position : Vector2) -> void:
+	_socket.send_match_state_async(_world_id, OPCODE.update_position, JSON.print({X = str(position.x), Y = str(position.y)}))
 

client/scripts/systems/PlayerPuppeteer.gd

@@ -0,0 +1,31 @@
+extends Node2D
+
+export(NodePath) var puppet_parent
+export(Resource) var puppet_template
+
+onready var puppet_parent_node : Node = get_node(puppet_parent)
+
+var puppets : Dictionary = {}
+
+func _ready():
+	ServerConnection.connect("player_joined", self, "on_player_join")
+	ServerConnection.connect("player_left", self, "on_player_leave")
+	ServerConnection.connect("player_pos_update", self, "on_player_pos_update")
+
+
+func on_player_join(user_id):
+	if user_id != ServerConnection._session.user_id:
+		var new_puppet : Node = puppet_template.instance()
+		new_puppet.name = "Player: " + user_id
+		puppet_parent_node.add_child(new_puppet)
+		puppets[user_id] = new_puppet
+
+func on_player_leave(user_id):
+	if user_id != ServerConnection._session.user_id:
+		var player_puppet : Node = puppets[user_id]
+		player_puppet.queue_free()
+
+func on_player_pos_update(user_id, pos):
+	if user_id != ServerConnection._session.user_id:
+		var player_puppet : Node2D = puppets[user_id]
+		player_puppet.global_position = pos

server/plugin/control/control.go

@@ -3,10 +3,14 @@ package control
 import (
 	"context"
 	"database/sql"
+	"fmt"
 	"github.com/heroiclabs/nakama-common/runtime"
+	"github.com/josephbmanley/family/server/plugin/entities"
 	"github.com/josephbmanley/family/server/plugin/gamemap"
 )
 
+const maxRenderDistance int = 32
+
 // OpCode represents a enum for valid OpCodes
 // used by the match logic
 type OpCode int64
@@ -14,6 +18,8 @@ type OpCode int64
 const (
 	// OpCodeTileUpdate is used for tile updates
 	OpCodeTileUpdate = 1
+	// OpCodeUpdatePosition is used for player position updates
+	OpCodeUpdatePosition = 2
 )
 
 // Match is the object registered
@@ -24,20 +30,27 @@ type Match struct{}
 // Nakama match methods
 type MatchState struct {
 	presences map[string]runtime.Presence
+	players   map[string]entities.PlayerEntity
 	inputs    map[string]string
-	positions map[string]map[string]int
-	names     map[string]string
 	worldMap  *gamemap.WorldMap
 }
 
+// GetPrecenseList returns an array of current precenes in an array
+func (state *MatchState) GetPrecenseList() []runtime.Presence {
+	precenseList := []runtime.Presence{}
+	for _, precense := range state.presences {
+		precenseList = append(precenseList, precense)
+	}
+	return precenseList
+}
+
 // MatchInit is called when a new match is created
 func (m *Match) MatchInit(ctx context.Context, logger runtime.Logger, db *sql.DB, nk runtime.NakamaModule, params map[string]interface{}) (interface{}, int, string) {
 
 	state := &MatchState{
 		presences: map[string]runtime.Presence{},
 		inputs:    map[string]string{},
-		positions: map[string]map[string]int{},
-		names:     map[string]string{},
+		players:   map[string]entities.PlayerEntity{},
 		worldMap:  gamemap.IntializeMap(),
 	}
 	tickRate := 10
@@ -77,13 +90,24 @@ func (m *Match) MatchJoin(ctx context.Context, logger runtime.Logger, db *sql.DB
 		// Add presence to map
 		mState.presences[precense.GetUserId()] = precense
 
-		// Set player spawn pos
-		mState.positions[precense.GetUserId()] = map[string]int{"x": 16, "y": 16}
+		player := entities.PlayerEntity{
+			X:        16,
+			Y:        16,
+			Presence: precense,
+		}
 
-		mState.names[precense.GetUserId()] = "User"
+		if jsonObj, err := player.GetPosJSON(); err != nil {
+			logger.Error(err.Error())
+		} else {
+			if sendErr := dispatcher.BroadcastMessage(OpCodeUpdatePosition, jsonObj, []runtime.Presence{precense}, player.Presence, true); sendErr != nil {
+				logger.Error(sendErr.Error())
+			}
+		}
+
+		mState.players[precense.GetUserId()] = player
 
 		// Get intial tile data around player
-		if regionData, err := mState.worldMap.GetJSONRegionAround(16, 16, 8); err != nil {
+		if regionData, err := mState.worldMap.GetJSONRegionAround(player.X, player.Y, maxRenderDistance); err != nil {
 			logger.Error(err.Error())
 		} else {
 
@@ -92,6 +116,16 @@ func (m *Match) MatchJoin(ctx context.Context, logger runtime.Logger, db *sql.DB
 				logger.Error(sendErr.Error())
 			}
 		}
+		for _, otherPlayer := range mState.players {
+			// Broadcast player data to client
+			if jsonObj, err := otherPlayer.GetPosJSON(); err != nil {
+				logger.Error(err.Error())
+			} else {
+				if sendErr := dispatcher.BroadcastMessage(OpCodeUpdatePosition, jsonObj, []runtime.Presence{precense}, otherPlayer.Presence, true); sendErr != nil {
+					logger.Error(sendErr.Error())
+				}
+			}
+		}
 	}
 	return mState
 }
@@ -104,19 +138,41 @@ func (m *Match) MatchLeave(ctx context.Context, logger runtime.Logger, db *sql.D
 		return state
 	}
 	for _, presence := range presences {
+		if _, ok := mState.presences[presence.GetUserId()]; ok {
 			delete(mState.presences, presence.GetUserId())
 		}
+		if _, ok := mState.players[presence.GetUserId()]; ok {
+			delete(mState.players, presence.GetUserId())
+		}
+	}
 	return mState
 }
 
 // MatchLoop is code that is executed every tick
 func (m *Match) MatchLoop(ctx context.Context, logger runtime.Logger, db *sql.DB, nk runtime.NakamaModule, dispatcher runtime.MatchDispatcher, tick int64, state interface{}, messages []runtime.MatchData) interface{} {
-	// Custom code to:
-	// - Process the messages received.
-	// - Update the match state based on the messages and time elapsed.
-	// - Broadcast new data messages to match participants.
-
+	mState, ok := state.(*MatchState)
+	if !ok {
+		logger.Error("Invalid match state on leave!")
 		return state
+	}
+	for _, message := range messages {
+		if message.GetOpCode() == OpCodeUpdatePosition {
+			player := mState.players[message.GetUserId()]
+
+			if response, err := player.ParsePositionRequest(message.GetData()); err == nil {
+				player.UpdateBasedOnResponse(response)
+				if jsonObject, err := player.GetPosJSON(); err == nil {
+					dispatcher.BroadcastMessage(OpCodeUpdatePosition, jsonObject, mState.GetPrecenseList(), player.Presence, false)
+					logger.Info("Yes")
+				} else {
+					logger.Error(fmt.Sprintf("Failed to get player json: %s", err.Error))
+				}
+			} else {
+				logger.Error(fmt.Sprintf("Failed to parse update pos request: %s", err.Error))
+			}
+		}
+	}
+	return mState
 }
 
 // MatchTerminate is code that is executed when the match ends

server/plugin/entities/entities.go

@@ -0,0 +1,55 @@
+package entities
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/heroiclabs/nakama-common/runtime"
+	"strconv"
+)
+
+// PlayerEntity is the go struct representing the player's location
+type PlayerEntity struct {
+	Presence runtime.Presence
+	X        float64
+	Y        float64
+}
+
+// PlayerPosResponse struct that represents client data
+type PlayerPosResponse struct {
+	X string
+	Y string
+}
+
+// ParsePositionRequest parses data from client
+func (p *PlayerEntity) ParsePositionRequest(data []byte) (PlayerPosResponse, error) {
+	var response PlayerPosResponse
+	err := json.Unmarshal(data, &response)
+	return response, err
+}
+
+//UpdateBasedOnResponse updates the player object based on a response object
+func (p *PlayerEntity) UpdateBasedOnResponse(response PlayerPosResponse) error {
+	if fx, err := strconv.ParseFloat(response.X, 64); err != nil {
+		return err
+	} else {
+		p.X = fx
+		if fy, err := strconv.ParseFloat(response.Y, 64); err != nil {
+			return err
+		} else {
+			p.Y = fy
+		}
+	}
+
+	return nil
+}
+
+// GetPosJSON returns the player's position as a JSON object
+func (p *PlayerEntity) GetPosJSON() ([]byte, error) {
+	playerMap := map[string]string{
+		"player": p.Presence.GetUserId(),
+		"x":      fmt.Sprintf("%f", p.X),
+		"y":      fmt.Sprintf("%f", p.Y),
+	}
+	jsonData, err := json.Marshal(playerMap)
+	return jsonData, err
+}

server/plugin/gamemap/gamemap.go

@@ -7,14 +7,14 @@ import (
 
 // WorldMap is the data structure used game world
 type WorldMap struct {
-	data  [64][64]int
+	data  [256][256]int
 	max_x int
 	max_y int
 }
 
 // GetTile method is used to grab a tile value with error checking
 func (m WorldMap) GetTile(x int, y int) (int, error) {
-	if x > m.max_x || y > m.max_y {
+	if x > m.max_x || y > m.max_y || x < 0 || y < 0 {
 		return -1, fmt.Errorf("Map out of bounds error: %d, %d", x, y)
 	}
 	return m.data[x][y], nil
@@ -27,21 +27,22 @@ func (m WorldMap) GetJSONRegion(startX, endX, startY, endY int) ([]byte, error)
 	for x := startX; x < endX; x++ {
 		regionMap[x] = map[int]int{}
 		for y := startY; y < endY; y++ {
-			if result, err := m.GetTile(x, y); err != nil {
-				return nil, err
-			} else {
+
+			// GetTile and ignore out of bounds errors
+			result, _ := m.GetTile(x, y)
 			regionMap[x][y] = result
 		}
 	}
-	}
 
 	jsonString, err := json.Marshal(regionMap)
 	return jsonString, err
 }
 
 // GetJSONRegionAround returns a JSON object of tile data from a center point
-func (m WorldMap) GetJSONRegionAround(centerX, centerY, regionRadius int) ([]byte, error) {
-	jsonString, err := m.GetJSONRegion(centerX-regionRadius, centerX+regionRadius, centerY-regionRadius, centerY+regionRadius)
+func (m WorldMap) GetJSONRegionAround(centerX float64, centerY float64, regionRadius int) ([]byte, error) {
+	var xCenter int = int(centerX)
+	var yCenter int = int(centerY)
+	jsonString, err := m.GetJSONRegion(xCenter-regionRadius, xCenter+regionRadius, yCenter-regionRadius, yCenter+regionRadius)
 	return jsonString, err
 }
 
@@ -49,9 +50,9 @@ func (m WorldMap) GetJSONRegionAround(centerX, centerY, regionRadius int) ([]byt
 // generate WorldMap objects
 func IntializeMap() *WorldMap {
 	worldMap := new(WorldMap)
-	worldMap.max_x = 64
-	worldMap.max_y = 64
-	worldMap.data = [64][64]int{}
+	worldMap.max_x = 256
+	worldMap.max_y = 256
+	worldMap.data = [256][256]int{}
 	for x := 0; x < worldMap.max_x; x++ {
 		for y := 0; y < worldMap.max_y; y++ {
 			worldMap.data[x][y] = 0