Part 07 - enemy unit healthbars, explosions

bullets/Bullet.gd

@@ -16,12 +16,18 @@ func _process(delta):
 	position += velocity * delta
 
 func explode():
-	queue_free()
+	velocity = Vector2()
+	$Sprite.hide()
+	$Explosion.show()
+	$Explosion.play("smoke")
 
 func _on_Bullet_body_entered(body):
 	explode()
 	if body.has_method('take_damage'):
 		body.take_damage(damage)
 
 func _on_Lifetime_timeout():
-	explode()
+	explode()
+
+func _on_Explosion_animation_finished():
+	queue_free()

bullets/Bullet.tscn

@@ -1,6 +1,7 @@
-[gd_scene load_steps=2 format=2]
+[gd_scene load_steps=3 format=2]
 
 [ext_resource path="res://bullets/Bullet.gd" type="Script" id=1]
+[ext_resource path="res://effects/Explosion.tscn" type="PackedScene" id=2]
 
 [node name="Bullet" type="Area2D"]
 
@@ -30,8 +31,16 @@ wait_time = 1.0
 one_shot = true
 autostart = true
 
+[node name="Explosion" parent="." index="3" instance=ExtResource( 2 )]
+
+visible = false
+scale = Vector2( 0.5, 0.5 )
+_sections_unfolded = [ "Transform" ]
+
 [connection signal="body_entered" from="." to="." method="_on_Bullet_body_entered"]
 
 [connection signal="timeout" from="Lifetime" to="." method="_on_Lifetime_timeout"]
 
+[connection signal="animation_finished" from="Explosion" to="." method="_on_Explosion_animation_finished"]
+
 

effects/Explosion.tscn

@@ -0,0 +1,33 @@
+[gd_scene load_steps=12 format=2]
+
+[ext_resource path="res://assets/explosions/explosion1.png" type="Texture" id=1]
+[ext_resource path="res://assets/explosions/explosion2.png" type="Texture" id=2]
+[ext_resource path="res://assets/explosions/explosion3.png" type="Texture" id=3]
+[ext_resource path="res://assets/explosions/explosion4.png" type="Texture" id=4]
+[ext_resource path="res://assets/explosions/explosion5.png" type="Texture" id=5]
+[ext_resource path="res://assets/explosions/explosionSmoke1.png" type="Texture" id=6]
+[ext_resource path="res://assets/explosions/explosionSmoke2.png" type="Texture" id=7]
+[ext_resource path="res://assets/explosions/explosionSmoke3.png" type="Texture" id=8]
+[ext_resource path="res://assets/explosions/explosionSmoke4.png" type="Texture" id=9]
+[ext_resource path="res://assets/explosions/explosionSmoke5.png" type="Texture" id=10]
+
+[sub_resource type="SpriteFrames" id=1]
+
+animations = [ {
+"frames": [ ExtResource( 1 ), ExtResource( 2 ), ExtResource( 3 ), ExtResource( 4 ), ExtResource( 5 ) ],
+"loop": true,
+"name": "fire",
+"speed": 12.0
+}, {
+"frames": [ ExtResource( 6 ), ExtResource( 7 ), ExtResource( 8 ), ExtResource( 9 ), ExtResource( 10 ) ],
+"loop": true,
+"name": "smoke",
+"speed": 12.0
+} ]
+
+[node name="Explosion" type="AnimatedSprite"]
+
+frames = SubResource( 1 )
+animation = "smoke"
+
+

maps/Map.gd

@@ -2,6 +2,7 @@ extends Node2D
 
 func _ready():
 	set_camera_limits()
+	Input.set_custom_mouse_cursor(load("res://assets/UI/crossair_black.png"), Input.CURSOR_ARROW, Vector2(16, 16))
 
 func set_camera_limits():
 	var map_limits = $Ground.get_used_rect()

tanks/EnemyTank.tscn

@@ -1,9 +1,10 @@
-[gd_scene load_steps=6 format=2]
+[gd_scene load_steps=7 format=2]
 
 [ext_resource path="res://tanks/Tank.tscn" type="PackedScene" id=1]
 [ext_resource path="res://tanks/EnemyTank.gd" type="Script" id=2]
 [ext_resource path="res://bullets/EnemyBullet.tscn" type="PackedScene" id=3]
 [ext_resource path="res://assets/onlyObjects_retina_rotated.png" type="Texture" id=4]
+[ext_resource path="res://ui/UnitDisplay.tscn" type="PackedScene" id=5]
 
 [sub_resource type="RectangleShape2D" id=1]
 
@@ -82,6 +83,10 @@ cast_to = Vector2( 100, 0 )
 collision_mask = 7
 _sections_unfolded = [ "Transform" ]
 
+[node name="UnitDisplay" parent="." index="7" instance=ExtResource( 5 )]
+
+[connection signal="health_changed" from="." to="UnitDisplay" method="update_healthbar"]
+
 [connection signal="body_entered" from="DetectRadius" to="." method="_on_DetectRadius_body_entered"]
 
 [connection signal="body_exited" from="DetectRadius" to="." method="_on_DetectRadius_body_exited"]

ui/UnitDisplay.gd

@@ -0,0 +1,22 @@
+extends Node2D
+
+var bar_red = preload("res://assets/UI/barHorizontal_red_mid 200.png")
+var bar_green = preload("res://assets/UI/barHorizontal_green_mid 200.png")
+var bar_yellow = preload("res://assets/UI/barHorizontal_yellow_mid 200.png")
+
+func _ready():
+	for node in get_children():
+		node.hide()
+
+func _process(delta):
+	global_rotation = 0
+
+func update_healthbar(value):
+	$HealthBar.texture_progress = bar_green
+	if value < 60:
+		$HealthBar.texture_progress = bar_yellow
+	if value < 25:
+		$HealthBar.texture_progress = bar_red
+	if value < 100:
+		$HealthBar.show()
+	$HealthBar.value = value

ui/UnitDisplay.tscn

@@ -0,0 +1,43 @@
+[gd_scene load_steps=3 format=2]
+
+[ext_resource path="res://ui/UnitDisplay.gd" type="Script" id=1]
+[ext_resource path="res://assets/UI/barHorizontal_green_mid 200.png" type="Texture" id=2]
+
+[node name="UnitDisplay" type="Node2D"]
+
+scale = Vector2( 0.5, 0.5 )
+script = ExtResource( 1 )
+_sections_unfolded = [ "Transform", "Z Index" ]
+
+[node name="HealthBar" type="TextureProgress" parent="." index="0"]
+
+anchor_left = 0.0
+anchor_top = 0.0
+anchor_right = 0.0
+anchor_bottom = 0.0
+margin_left = -100.0
+margin_top = -156.0
+margin_right = 100.0
+margin_bottom = -116.0
+rect_pivot_offset = Vector2( 0, 0 )
+rect_clip_content = false
+mouse_filter = 1
+mouse_default_cursor_shape = 0
+size_flags_horizontal = 1
+size_flags_vertical = 1
+min_value = 0.0
+max_value = 100.0
+step = 1.0
+page = 0.0
+value = 100.0
+exp_edit = false
+rounded = false
+texture_under = null
+texture_over = null
+texture_progress = ExtResource( 2 )
+radial_fill_degrees = 360.0
+radial_center_offset = Vector2( 0, 0 )
+nine_patch_stretch = false
+_sections_unfolded = [ "Textures" ]
+
+