From 7713127e27544e57d112c64811f0ef8c940c003c Mon Sep 17 00:00:00 2001
From: Alan Youngblood <ayoungblood@oakcityit.net>
Date: Sun, 24 Nov 2024 12:41:42 -0500
Subject: [PATCH] Tutorial 18.3 Player Stats with HP Label

---
 ActionRPG-HeartBeast/Stats.gd         |  2 ++
 ActionRPG-HeartBeast/UI/HealthUI.gd   | 19 +++++++++++++++++++
 ActionRPG-HeartBeast/UI/HealthUI.tscn | 13 +++++++++++++
 ActionRPG-HeartBeast/World.tscn       |  5 ++++-
 4 files changed, 38 insertions(+), 1 deletion(-)
 create mode 100644 ActionRPG-HeartBeast/UI/HealthUI.gd
 create mode 100644 ActionRPG-HeartBeast/UI/HealthUI.tscn

diff --git a/ActionRPG-HeartBeast/Stats.gd b/ActionRPG-HeartBeast/Stats.gd
index 5dd8dc2..d7e6347 100644
--- a/ActionRPG-HeartBeast/Stats.gd
+++ b/ActionRPG-HeartBeast/Stats.gd
@@ -4,8 +4,10 @@ export(int) var max_health = 1
 onready var health = max_health setget set_health
 
 signal no_health
+signal health_changed(value)
 
 func set_health(value):
 	health = value
+	emit_signal("health_changed", health)
 	if health <= 0:
 		emit_signal("no_health")
diff --git a/ActionRPG-HeartBeast/UI/HealthUI.gd b/ActionRPG-HeartBeast/UI/HealthUI.gd
new file mode 100644
index 0000000..64e341f
--- /dev/null
+++ b/ActionRPG-HeartBeast/UI/HealthUI.gd
@@ -0,0 +1,19 @@
+extends Control
+
+var hearts = 4 setget set_hearts
+var max_hearts = 4 setget set_max_hearts
+
+onready var label = $Label
+
+func set_hearts(value):
+	hearts = clamp(value, 0, max_hearts)
+	if label != null:
+		label.text = "HP = " + str(hearts)
+
+func set_max_hearts(value):
+	max_hearts = max(value, 1)
+	
+func _ready():
+	self.max_hearts = PlayerStats.max_health
+	self.hearts = PlayerStats.health
+	PlayerStats.connect("health_changed", self, "set_hearts")
diff --git a/ActionRPG-HeartBeast/UI/HealthUI.tscn b/ActionRPG-HeartBeast/UI/HealthUI.tscn
new file mode 100644
index 0000000..63772bb
--- /dev/null
+++ b/ActionRPG-HeartBeast/UI/HealthUI.tscn
@@ -0,0 +1,13 @@
+[gd_scene load_steps=2 format=2]
+
+[ext_resource path="res://UI/HealthUI.gd" type="Script" id=1]
+
+[node name="HealthUI" type="Control"]
+margin_right = 122.0
+margin_bottom = 25.0
+script = ExtResource( 1 )
+
+[node name="Label" type="Label" parent="."]
+margin_right = 42.0
+margin_bottom = 14.0
+text = "HP = 4"
diff --git a/ActionRPG-HeartBeast/World.tscn b/ActionRPG-HeartBeast/World.tscn
index 860f3ab..e372d25 100644
--- a/ActionRPG-HeartBeast/World.tscn
+++ b/ActionRPG-HeartBeast/World.tscn
@@ -1,4 +1,4 @@
-[gd_scene load_steps=62 format=2]
+[gd_scene load_steps=63 format=2]
 
 [ext_resource path="res://World/Bush.tscn" type="PackedScene" id=1]
 [ext_resource path="res://Player/Player.tscn" type="PackedScene" id=2]
@@ -8,6 +8,7 @@
 [ext_resource path="res://World/Grass.tscn" type="PackedScene" id=6]
 [ext_resource path="res://touch_controls/TouchControls.tscn" type="PackedScene" id=7]
 [ext_resource path="res://Enemies/Bat.tscn" type="PackedScene" id=8]
+[ext_resource path="res://UI/HealthUI.tscn" type="PackedScene" id=9]
 
 [sub_resource type="TileSet" id=1]
 0/name = "DirtTileset.png 0"
@@ -608,3 +609,5 @@ margin_right = 40.0
 margin_bottom = 40.0
 
 [node name="TouchControls" parent="Control" instance=ExtResource( 7 )]
+
+[node name="HealthUI" parent="." instance=ExtResource( 9 )]