add player/enemy system

core/player.gd

@@ -0,0 +1,6 @@
+@tool
+extends Node
+class_name Player
+
+@export var color = Color.WHITE
+@export var code: String

core/player.tscn

@@ -0,0 +1,7 @@
+[gd_scene load_steps=2 format=3 uid="uid://dqaabctftkakr"]
+
+[ext_resource type="Script" path="res://core/player.gd" id="1_6rga0"]
+
+[node name="player" type="Node" groups=["player"]]
+script = ExtResource("1_6rga0")
+code = ""

core/spawner.gd

@@ -4,12 +4,20 @@ class_name Spawner
 
 @export var unit_type: PackedScene
 @export var spawn_duration = 1.0
-var _spawning_since = 0.0
+
+@export var player: Node:
+	set(val):
+		if val is Player:
+			player = val
+		else:
+			player = null
 
 @export var delivery = Vector2(100.0, 0.0):
 	set(val):
 		delivery = val
 		_check_compose()
+
+var _spawning_since = 0.0
 		
 func _compose():
 	$delivery.position = delivery
@@ -27,6 +35,7 @@ func spawn():
 		var unit := unit_type.instantiate()
 		if unit is Unit:
 			unit.position = delivery
+			unit.player = player
 			_spawning_since = min(0.0, _spawning_since - spawn_duration)
 			# FIXME add to battlefield
 			add_child(unit)

core/unit.gd

@@ -2,10 +2,54 @@
 class_name Unit
 extends Composer
 
+@export var can_move = false
+
 @export var sprite: Texture2D:
 	set(val):
 		sprite = val
 		_check_compose()
 		
+@export var player: Node:
+	set(val):
+		if val is Player:
+			player = val
+		else:
+			player = null
+
+var target_reached = true
+var target_position: Vector2
+		
 func _compose():
 	$sprite.texture = sprite
+	if player:
+		# TODO something more subtle
+		modulate = player.color
+		if player.code and not Engine.is_editor_hint():
+			add_to_group("player:" + player.code)
+			
+func _physics_process(delta):
+	if not target_reached:
+		# TODO use position instead of position, once parented to battlefield
+		global_position += (target_position - global_position).normalized() * 100.0 * delta
+		if global_position == target_position:
+			target_reached = true
+		
+	make_decision()  # TODO not every tick
+	
+func set_target(pos: Vector2):
+	if pos != target_position:
+		target_position = pos
+		target_reached = false
+		
+func make_decision():
+	if can_move:
+		var enemy: Unit = null
+		var closest := INF
+		for unit in get_tree().get_nodes_in_group("unit"):
+			if unit is Unit and unit.player != player:
+				var distance := global_position.distance_to(unit.global_position)
+				if distance < closest:
+					closest = distance
+					enemy = unit
+		if enemy:
+			set_target(enemy.global_position)

core/unit.tscn

@@ -2,7 +2,7 @@
 
 [ext_resource type="Script" path="res://core/unit.gd" id="1_1i367"]
 
-[node name="unit" type="Node2D"]
+[node name="unit" type="Node2D" groups=["unit"]]
 script = ExtResource("1_1i367")
 
 [node name="sprite" type="Sprite2D" parent="."]

core/weapon.gd

@@ -0,0 +1,11 @@
+@tool
+extends Composer
+class_name Weapon
+
+@export var sprite: Texture2D:
+	set(val):
+		sprite = val
+		_check_compose()
+		
+func _compose():
+	$sprite.texture = sprite

core/weapon.tscn

@@ -1,3 +1,8 @@
-[gd_scene format=3 uid="uid://cjegfdo7jw38q"]
+[gd_scene load_steps=2 format=3 uid="uid://cjegfdo7jw38q"]
+
+[ext_resource type="Script" path="res://core/weapon.gd" id="1_vw2y4"]
 
 [node name="weapon" type="Node2D"]
+script = ExtResource("1_vw2y4")
+
+[node name="sprite" type="Sprite2D" parent="."]

main.tscn

@@ -1,14 +1,27 @@
-[gd_scene load_steps=3 format=3 uid="uid://c6omib6txy3qh"]
+[gd_scene load_steps=4 format=3 uid="uid://c6omib6txy3qh"]
 
 [ext_resource type="PackedScene" uid="uid://brbtq46uk18gg" path="res://core/battlefield.tscn" id="1_x63ik"]
+[ext_resource type="PackedScene" uid="uid://dqaabctftkakr" path="res://core/player.tscn" id="2_o4smw"]
 [ext_resource type="PackedScene" uid="uid://b8uik6q4v35o3" path="res://tac/units/factory.tscn" id="2_wnc50"]
 
 [node name="main" type="Node2D"]
 
 [node name="battlefield" parent="." instance=ExtResource("1_x63ik")]
 
-[node name="factory" parent="battlefield" instance=ExtResource("2_wnc50")]
-position = Vector2(216, 262)
-script = null
+[node name="player1" parent="battlefield" instance=ExtResource("2_o4smw")]
+color = Color(0, 0, 1, 1)
+code = "p1"
+
+[node name="player2" parent="battlefield" instance=ExtResource("2_o4smw")]
+color = Color(1, 0, 0, 1)
+code = "p2"
+
+[node name="factory1" parent="battlefield" node_paths=PackedStringArray("player") instance=ExtResource("2_wnc50")]
+position = Vector2(270, 222)
+player = NodePath("../player1")
+
+[node name="factory2" parent="battlefield" node_paths=PackedStringArray("player") instance=ExtResource("2_wnc50")]
+position = Vector2(929, 429)
+player = NodePath("../player2")
 
 [node name="ui" type="CanvasLayer" parent="."]

project.godot

@@ -14,6 +14,11 @@ _global_script_classes=[{
 "language": &"GDScript",
 "path": "res://core/composer.gd"
 }, {
+"base": "Node",
+"class": &"Player",
+"language": &"GDScript",
+"path": "res://core/player.gd"
+}, {
 "base": "Composer",
 "class": &"Spawner",
 "language": &"GDScript",
@@ -23,11 +28,18 @@ _global_script_classes=[{
 "class": &"Unit",
 "language": &"GDScript",
 "path": "res://core/unit.gd"
+}, {
+"base": "Composer",
+"class": &"Weapon",
+"language": &"GDScript",
+"path": "res://core/weapon.gd"
 }]
 _global_script_class_icons={
 "Composer": "",
+"Player": "",
 "Spawner": "",
-"Unit": ""
+"Unit": "",
+"Weapon": ""
 }
 
 [application]

tac/assets/turret1.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://f50jxvf24eq"
+path="res://.godot/imported/turret1.png-6ae12f481bfa83613e2e699160f305aa.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://tac/assets/turret1.png"
+dest_files=["res://.godot/imported/turret1.png-6ae12f481bfa83613e2e699160f305aa.ctex"]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/bptc_ldr=0
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

tac/assets/turret_1.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://ch2tifa0qxhpn"
+path="res://.godot/imported/turret_1.png-ec61205419b69a0ceddc07ea23f94af2.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://tac/assets/turret_1.png"
+dest_files=["res://.godot/imported/turret_1.png-ec61205419b69a0ceddc07ea23f94af2.ctex"]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/bptc_ldr=0
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

tac/units/factory.gd

@@ -7,5 +7,6 @@ extends Unit
 		_check_compose()
 
 func _compose():
-	super._compose()
 	$spawner.unit_type = produced_unit
+	$spawner.player = player
+	super._compose()

tac/units/fighter.tscn

@@ -1,10 +1,14 @@
-[gd_scene load_steps=3 format=3 uid="uid://b05ykot10q8no"]
+[gd_scene load_steps=4 format=3 uid="uid://b05ykot10q8no"]
 
 [ext_resource type="PackedScene" uid="uid://bft45rcp7v3a6" path="res://core/unit.tscn" id="1_2ka4q"]
 [ext_resource type="Texture2D" uid="uid://2nhprnyswhyh" path="res://tac/assets/ship_small_1.png" id="2_oablw"]
+[ext_resource type="PackedScene" uid="uid://byg2bmiy2gia0" path="res://tac/weapons/turret.tscn" id="3_rt3r8"]
 
 [node name="fighter" instance=ExtResource("1_2ka4q")]
+can_move = true
 sprite = ExtResource("2_oablw")
 
 [node name="sprite" parent="." index="0"]
 texture = ExtResource("2_oablw")
+
+[node name="turret" parent="." index="1" instance=ExtResource("3_rt3r8")]

tac/weapons/turret.tscn

@@ -0,0 +1,10 @@
+[gd_scene load_steps=3 format=3 uid="uid://byg2bmiy2gia0"]
+
+[ext_resource type="PackedScene" uid="uid://cjegfdo7jw38q" path="res://core/weapon.tscn" id="1_l2lnm"]
+[ext_resource type="Texture2D" uid="uid://f50jxvf24eq" path="res://tac/assets/turret1.png" id="2_f2xj2"]
+
+[node name="turret" instance=ExtResource("1_l2lnm")]
+sprite = ExtResource("2_f2xj2")
+
+[node name="sprite" parent="." index="0"]
+texture = ExtResource("2_f2xj2")