Deal Damage

res/shaders/colorize.tres

@@ -15,5 +15,5 @@ void fragment(){
 
 [resource]
 shader = SubResource( 3 )
-shader_param/active = false
-shader_param/color = Color( 1, 1, 1, 1 )
+shader_param/active = true
+shader_param/color = Color( 1, 1, 1, 0 )

src/models/bullet/Bullet.gd

@@ -1,12 +1,23 @@
 extends KinematicBody2D
 
-var speed = 128
 var velocity = Vector2.ZERO
+var speed = 128
+var poisoned = false
+var damage = 5
+var frozen = false
 var target
 
 func _physics_process(delta):
-	if target != null:
+	if target != null and is_instance_valid(target):
 		var target_texture = target.get_node("Sprite").frames.get_frame("idle", 0)
 		var target_sprite_size = Vector2(target_texture.get_width(), target_texture.get_width())
 		var target_center = target.global_position + (target_sprite_size / 2)
 		self.global_position = self.global_position.move_toward(target_center, delta * speed)
+
+func area_entered(area):
+	var parent = area.get_parent()
+	if parent.is_in_group("enemy"):
+		parent.deal_damage(damage)
+		parent.frozen = frozen
+		parent.poisoned = poisoned
+		call_deferred("free")

src/models/bullet/Bullet.tscn

@@ -11,6 +11,12 @@ script = ExtResource( 2 )
 
 [node name="Sprite" type="Sprite" parent="."]
 texture = ExtResource( 1 )
+centered = false
 
-[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+[node name="Area2D" type="Area2D" parent="."]
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="Area2D"]
+position = Vector2( 3.5, 3.5 )
 shape = SubResource( 1 )
+
+[connection signal="area_entered" from="Area2D" to="." method="area_entered"]

src/models/enemies/ghost/Ghost.tscn

@@ -6,7 +6,7 @@
 [sub_resource type="RectangleShape2D" id=1]
 extents = Vector2( 7, 9 )
 
-[node name="Ghost" type="KinematicBody2D" groups=["enemy"]]
+[node name="Ghost" type="KinematicBody2D" groups=["enemy", "ghost"]]
 z_index = 2
 script = ExtResource( 2 )
 
@@ -14,6 +14,7 @@ script = ExtResource( 2 )
 use_parent_material = true
 frames = ExtResource( 1 )
 animation = "idle"
+frame = 1
 playing = true
 centered = false
 

src/models/enemies/ghost/ghost.gd

@@ -5,6 +5,9 @@ var dash_target = Vector2.ZERO
 var dash_timer = .0
 var dashing = false
 
+func _ready():
+	hp = 8
+
 func _physics_process(delta):
 	var dist = global_position.distance_to(player.global_position)
 	if dist > 25 and dash_target == Vector2.ZERO:

src/models/player/player.gd

@@ -72,9 +72,14 @@ func _shoot():
 	bullet.global_position.y = self.global_position.y - 4
 
 func _draw():
-	if target != null:
+	if target != null and is_instance_valid(target):
 		var dist2enemy = position.distance_to(target.global_position)
-		draw_dashed_line(Vector2(12, 12), target.global_position - self.global_position + Vector2(8, 7), Color("ffde00"), 1)
+		var mob_offset = Vector2.ZERO
+		if target.is_in_group("bat"):
+			mob_offset = Vector2(8, 7)
+		if target.is_in_group("ghost"):
+			mob_offset = Vector2(8, 12)
+		draw_dashed_line(Vector2(12, 12), target.global_position - self.global_position + mob_offset, Color("ffde00"), 1)
 
 func _process(_delta):
 	$Sprite.play("idle") if velocity == Vector2.ZERO else $Sprite.play("run")
@@ -87,11 +92,9 @@ func _physics_process(delta):
 	get_input()
 	
 	invincibility_timer += delta
-	recharge_timer += delta
 	
-	if recharge_timer >= get_recharge():
-		_shoot()
-		recharge_timer = .0
+	if recharge_timer <= get_recharge():
+		recharge_timer += delta
 	
 	var areas = $EnemyCollision.get_overlapping_areas()
 	slowed = false
@@ -110,4 +113,11 @@ func _physics_process(delta):
 	
 	velocity = move_and_slide(velocity * speed_multiplier)
 	choose_target()
-	target.material = outline_material
+	
+	if target != null and is_instance_valid(target):
+		target.material = outline_material
+	
+		if recharge_timer >= get_recharge():
+			_shoot()
+			recharge_timer = .0
+

src/scripts/enemy_class.gd

@@ -4,17 +4,35 @@ var hp
 var poisoned = false
 var poisoned_timer = .0
 var speed_multiplier = 1
+var frozen_timer = .0
+var frozen_time = 2
+var poisoned_time = 3
+var poisoned_damage = 5
+var poison_damage_timer = .0
+
 var frozen = false
 
-func check_frozen():
-	speed_multiplier = 1
+func deal_damage(amount):
+	hp -= amount
+	if hp <= 0:
+		call_deferred("free")
+
+func _physics_process(delta):
+	if poisoned:
+		poisoned_timer += delta
+		poison_damage_timer += delta
+		if poisoned_timer >= poisoned_time:
+			poisoned_timer = .0
+			poison_damage_timer = .0
+			poisoned = false
+		if poison_damage_timer >= 1:
+			deal_damage(poisoned_damage)
+	
 	if frozen:
+		frozen_timer += delta
 		speed_multiplier = 0.5
-
-func check_poisoned():
-	if poisoned_timer >= 1:
-		hp -= 5
-
-func _physics_process(_delta):
-	check_frozen()
-	check_poisoned()
+		if frozen_timer >= frozen_time:
+			frozen_time = 0
+			frozen = false
+	else:
+		speed_multiplier = 1