boolet impacts

Asteroid.gd

@@ -30,8 +30,11 @@ func wrap(v, v_min, v_max):
 	else:
 		return v
 		
-func explode():
+func on_explode():
 	queue_free()
+	
+func do_damage(v):
+	health -= v
 
 func _fixed_process(delta):
 	
@@ -40,13 +43,8 @@ func _fixed_process(delta):
 	# cur_pos.y = wrap(cur_pos.y, 1, get_viewport().get_rect().size.y)
 	# set_pos(cur_pos)
 	
-	if is_colliding():
-		var e = get_collider()
-		if e.type() == "Bullet":
-			health -= 25
-			
 	if health <= 0:
-		explode()
+		on_explode()
 	
 	self.move(velocity)
 	self.rotate(rot_vel)

Bullet.gd

@@ -1,8 +1,12 @@
 extends KinematicBody2D
 
+var BulletImpact = load("res://BulletImpact.tscn")
+
 var velocity = Vector2(1, 0)
 var lifetime = 16 # seconds
 
+var bullet_dmg = 0.25
+
 onready var sprite = get_node("Sprite")
 
 func _ready():
@@ -14,6 +18,23 @@ func fire(delta, vel, dir, speed):
 
 func type():
 	return "Bullet"
+	
+func on_impact(e):
+	
+	# create bullet impact
+	var new_bi = BulletImpact.instance()
+	e.add_child(new_bi)
+	# get_tree().get_root().add_child(new_bi)
+	new_bi.set_global_pos(get_collision_pos() + velocity/2)
+	
+	# align along "hit normal, the lazy way"
+	new_bi.set_global_rot((-get_collision_normal()).angle())
+	
+	# new_bi.rotate(deg2rad(180))
+	
+	# damage and free
+	e.do_damage(bullet_dmg)
+	queue_free()
 
 func _fixed_process(delta):
 	
@@ -22,6 +43,8 @@ func _fixed_process(delta):
 	
 	if is_colliding():
 		var e = get_collider()
+		if e.type() == "Asteroid":
+			on_impact(e)
 	
 	if lifetime <= 0:
 		queue_free()

Bullet.tscn

@@ -11,7 +11,6 @@ extents = Vector2( 0.99762, 3.98857 )
 [node name="Bullet" type="KinematicBody2D"]
 
 transform/rot = 180.0
-transform/scale = Vector2( 2, 2 )
 input/pickable = false
 shapes/0/shape = SubResource( 1 )
 shapes/0/transform = Matrix32( 1, 0, 0, 1, 0, 0 )

BulletImpact.gd

@@ -0,0 +1,16 @@
+extends Sprite
+
+var current_time = 0
+var frames_per_second = 0.05
+
+func _ready():
+	set_process(true)
+
+func _process(delta):
+	
+	if int(current_time / frames_per_second) >= get_hframes() - 1:
+		queue_free()
+	
+	set_frame(int(current_time / frames_per_second))
+	
+	current_time += delta

BulletImpact.tscn

@@ -0,0 +1,14 @@
+[gd_scene load_steps=3 format=1]
+
+[ext_resource path="res://raw/bullet_impact.png" type="Texture" id=1]
+[ext_resource path="res://BulletImpact.gd" type="Script" id=2]
+
+[node name="BulletImpact" type="Sprite"]
+
+transform/scale = Vector2( 0.25, 0.25 )
+texture = ExtResource( 1 )
+hframes = 5
+region_rect = Rect2( 0, 0, 32, 48 )
+script/script = ExtResource( 2 )
+
+

Game.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=8 format=1]
+[gd_scene load_steps=9 format=1]
 
 [ext_resource path="res://Game.gd" type="Script" id=1]
 [ext_resource path="res://Minimap.tscn" type="PackedScene" id=2]
@@ -7,6 +7,7 @@
 [ext_resource path="res://Player.tscn" type="PackedScene" id=5]
 [ext_resource path="res://raw/space.png" type="Texture" id=6]
 [ext_resource path="res://EnemyGrunt.tscn" type="PackedScene" id=7]
+[ext_resource path="res://BulletImpact.tscn" type="PackedScene" id=8]
 
 [node name="Game" type="Node"]
 
@@ -71,4 +72,8 @@ region_rect = Rect2( 0, 0, 8192, 8192 )
 transform/pos = Vector2( 127.878, -20.3627 )
 transform/scale = Vector2( 1.5, 1.5 )
 
+[node name="BulletImpact" parent="." instance=ExtResource( 8 )]
+
+transform/pos = Vector2( 53.4955, -25.9372 )
+
 

raw/bullet_impact.png.flags

@@ -0,0 +1,2 @@
+filter=false
+gen_mipmaps=false