feat(player): implement player's health and healthbar (#41)

* feat(player): add player healthbar

* feat(player): re-add shader & and animations after rebase

* feat(player): @export of AnimationPlayer

* feat(player): extract HealthBar to its own scene

* feat(player): add player healthbar

* fix death anim

---------

Co-authored-by: Olivier PEREZ <[email protected]>

Author: Slocaly

objects/actors/mob/Mob.gd

@@ -1,5 +1,4 @@
 class_name Mob
 extends Actor
 
-
 var targeted_players: Array[Player]

objects/actors/player/Player.gd

@@ -2,15 +2,19 @@ class_name Player
 extends Actor
 
 @export var chestModifierSpeed: float = 0.7
+@export var life = 100
 
 @onready var attackTimer = $AttackTimer
+@onready var healthbar: HealthBar = $HealthBar
+@onready var animation_player: AnimationPlayer = $AnimationPlayer
 
 @export var weapon: Weapon
 var hasChest = false
 
 func _ready() -> void:
 	if StoreManager.player_weapon != null:
 		weapon = StoreManager.player_weapon
+	healthbar.init(life)
 	attackTimer.wait_time = weapon.attack_speed
 
 func _input(event):
@@ -22,7 +26,15 @@ func _input(event):
 		attack()
 
 func apply_attack(force: int) -> void:
-	prints("Attacked with force", force)
+	if life <= 0:
+		return
+
+	life -= force
+	animation_player.play("Hit")
+	healthbar.value = life
+
+	if (life <= 0):
+		animation_player.play("Death")
 
 func get_speed():
 	if hasChest: return _speed * chestModifierSpeed
@@ -38,7 +50,7 @@ func attack():
 	var direction = global_position.direction_to(mouseCoords)
 
 	var attack_scene = weapon.attackTo(direction)
-	
+
 	if weapon.attack_type == Weapon.ATTACK_TYPES.projectile:
 		attack_scene.global_position = global_position
 		get_tree().current_scene.add_child(attack_scene)
@@ -53,7 +65,6 @@ func _on_collecting(element):
 	if element is Boat:
 		if hasChest:
 			element.can_enter = true
-			$AnimationPlayer.play("fade_away")
-		
-		if element.can_enter: $AnimationPlayer.play("fade_away")
-		
+			animation_player.play("FadeAway")
+
+		if element.can_enter: animation_player.play("FadeAway")

objects/actors/player/Player.tscn

@@ -1,10 +1,11 @@
-[gd_scene load_steps=77 format=3 uid="uid://bsfyypyhwfbs5"]
+[gd_scene load_steps=80 format=3 uid="uid://bsfyypyhwfbs5"]
 
 [ext_resource type="PackedScene" uid="uid://du0c1yciw8ul6" path="res://objects/actors/Actor.tscn" id="1_wrkhm"]
 [ext_resource type="Script" path="res://objects/actors/player/Player.gd" id="2_bhjnv"]
+[ext_resource type="Resource" uid="uid://r3i80a6v2w0y" path="res://resources/weapons/gun/Gun.tres" id="3_irbyu"]
 [ext_resource type="Texture2D" uid="uid://dw5vuo3agm77m" path="res://objects/actors/player/template.png" id="3_q5uec"]
-[ext_resource type="Resource" uid="uid://ca4y5d7kksi0h" path="res://resources/weapons/sword/Sword.tres" id="3_uqweb"]
 [ext_resource type="PackedScene" uid="uid://cxlkjx4h6gv5h" path="res://components/collector/Collector.tscn" id="5_q1uwo"]
+[ext_resource type="PackedScene" uid="uid://c5w6dv2r65qsd" path="res://objects/hud/HealthBar.tscn" id="7_svy1a"]
 
 [sub_resource type="SceneReplicationConfig" id="SceneReplicationConfig_p4sxr"]
 properties/0/path = NodePath(".:position")
@@ -508,19 +509,33 @@ radius = 32.0
 [sub_resource type="CircleShape2D" id="CircleShape2D_xu8dn"]
 radius = 80.0
 
-[sub_resource type="Animation" id="Animation_tc2ku"]
-length = 0.001
+[sub_resource type="Animation" id="Animation_0v3ge"]
+resource_name = "Death"
 tracks/0/type = "value"
 tracks/0/imported = false
 tracks/0/enabled = true
 tracks/0/path = NodePath(".:modulate")
 tracks/0/interp = 1
 tracks/0/loop_wrap = true
 tracks/0/keys = {
-"times": PackedFloat32Array(0),
-"transitions": PackedFloat32Array(1),
+"times": PackedFloat32Array(0, 0.75),
+"transitions": PackedFloat32Array(1, 1),
 "update": 0,
-"values": [Color(1, 1, 1, 1)]
+"values": [Color(1, 1, 1, 1), Color(1, 1, 1, 0)]
+}
+tracks/1/type = "method"
+tracks/1/imported = false
+tracks/1/enabled = true
+tracks/1/path = NodePath(".")
+tracks/1/interp = 1
+tracks/1/loop_wrap = true
+tracks/1/keys = {
+"times": PackedFloat32Array(0.75),
+"transitions": PackedFloat32Array(1),
+"values": [{
+"args": [],
+"method": &"queue_free"
+}]
 }
 
 [sub_resource type="Animation" id="Animation_l1t87"]
@@ -552,17 +567,62 @@ tracks/1/keys = {
 }]
 }
 
+[sub_resource type="Animation" id="Animation_fx0oj"]
+resource_name = "Hit"
+length = 0.4
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath("AnimatedSprite:modulate")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0, 0.2, 0.4),
+"transitions": PackedFloat32Array(1, 1, 1),
+"update": 0,
+"values": [Color(1, 1, 1, 1), Color(0.912963, 0.144798, 0.20362, 1), Color(1, 1, 1, 1)]
+}
+
+[sub_resource type="Animation" id="Animation_tc2ku"]
+length = 0.001
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath(".:modulate")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0),
+"transitions": PackedFloat32Array(1),
+"update": 0,
+"values": [Color(1, 1, 1, 1)]
+}
+tracks/1/type = "bezier"
+tracks/1/imported = false
+tracks/1/enabled = true
+tracks/1/path = NodePath(".:material:shader_parameter/flash_value")
+tracks/1/interp = 1
+tracks/1/loop_wrap = true
+tracks/1/keys = {
+"handle_modes": PackedInt32Array(0),
+"points": PackedFloat32Array(0, -0.25, 0, 0.25, 0),
+"times": PackedFloat32Array(0)
+}
+
 [sub_resource type="AnimationLibrary" id="AnimationLibrary_mt86f"]
 _data = {
-"RESET": SubResource("Animation_tc2ku"),
-"fade_away": SubResource("Animation_l1t87")
+"Death": SubResource("Animation_0v3ge"),
+"FadeAway": SubResource("Animation_l1t87"),
+"Hit": SubResource("Animation_fx0oj"),
+"RESET": SubResource("Animation_tc2ku")
 }
 
 [node name="Player" instance=ExtResource("1_wrkhm")]
 collision_mask = 7
 script = ExtResource("2_bhjnv")
 chestModifierSpeed = 0.7
-weapon = ExtResource("3_uqweb")
+life = 100
+weapon = ExtResource("3_irbyu")
 
 [node name="MultiplayerSynchronizer" type="MultiplayerSynchronizer" parent="." index="0"]
 replication_config = SubResource("SceneReplicationConfig_p4sxr")
@@ -590,4 +650,10 @@ libraries = {
 "": SubResource("AnimationLibrary_mt86f")
 }
 
+[node name="HealthBar" parent="." index="6" instance=ExtResource("7_svy1a")]
+offset_left = -27.0
+offset_top = -34.0
+offset_right = 84.0
+offset_bottom = -23.0
+
 [connection signal="on_collecting" from="Collector" to="." method="_on_collecting"]

objects/hud/HealthBar.gd

@@ -0,0 +1,19 @@
+class_name HealthBar
+extends ProgressBar
+
+var RED_COLOR = "e7001f"
+var ORANGE_COLOR = "edae14"
+var GREEN_COLOR = "3ac428"
+
+func _process(delta):
+	if value <= max_value / 10:
+		modulate = RED_COLOR
+	elif value <= max_value / 3:
+		modulate = ORANGE_COLOR
+	else:
+		modulate = GREEN_COLOR
+
+func init(maxHealth: int) -> void:
+	max_value = maxHealth
+	value = maxHealth
+	

objects/hud/HealthBar.tscn

@@ -0,0 +1,16 @@
+[gd_scene load_steps=2 format=3 uid="uid://c5w6dv2r65qsd"]
+
+[ext_resource type="Script" path="res://objects/hud/HealthBar.gd" id="1_kbje0"]
+
+[node name="HealthBar" type="ProgressBar"]
+modulate = Color(0.227451, 0.768627, 0.156863, 1)
+z_index = 10
+offset_left = -68.0
+offset_top = -60.0
+offset_right = 206.0
+offset_bottom = -33.0
+scale = Vector2(0.5, 0.5)
+mouse_filter = 2
+step = 1.0
+show_percentage = false
+script = ExtResource("1_kbje0")

project.godot

@@ -20,8 +20,8 @@ config/icon="res://icon.svg"
 ProgressionService="*res://services/save/ProgressionService.gd"
 UiAudio="*res://components/uicontrols/UIAudio.gd"
 SceneTransition="*res://services/transition/SceneTransition.tscn"
-MultiplayerManager="*res://services/multiplayer/MultiplayerManager.gd"
 StoreManager="*res://services/managers/store/StoreManager.gd"
+MultiplayerManager="*res://services/multiplayer/MultiplayerManager.gd"
 
 [debug]
 

scenes/levels/debug/DebugLevel.tscn

@@ -18,6 +18,8 @@ script = ExtResource("1_ggoyj")
 
 [node name="Player" parent="." instance=ExtResource("1_t7e46")]
 weapon = ExtResource("2_sywcb")
+chestModifierSpeed = 0.7
+maxHealth = 100
 
 [node name="Camera2D" type="Camera2D" parent="Player"]
 position_smoothing_enabled = true