spreads and stacks!

scenes/test_scene_haze.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=17 format=3 uid="uid://dxsp66qpvm65b"]
+[gd_scene load_steps=15 format=3 uid="uid://dxsp66qpvm65b"]
 
 [ext_resource type="PackedScene" uid="uid://q2fys6o0jy6w" path="res://objects/starfield/starfield.tscn" id="1_4oowd"]
 [ext_resource type="PackedScene" uid="uid://c714s5d7d5765" path="res://objects/player/player.tscn" id="2_j8ivh"]
@@ -7,9 +7,8 @@
 [ext_resource type="Script" uid="uid://dntp60my5f65m" path="res://systems/bullets/bullet_behaviors/linear_motion_behavior.gd" id="4_t1bs8"]
 [ext_resource type="Texture2D" uid="uid://c21fe72aym3fe" path="res://graphics/bullets/normal_bullet/test_bullet.png" id="5_4oowd"]
 [ext_resource type="Script" uid="uid://vus1a0flwtnm" path="res://systems/bullets/bullet_preset.gd" id="6_sle1e"]
-[ext_resource type="Script" uid="uid://dtuc6qerbfset" path="res://systems/bullets/spawn_patterns/ring_pattern.gd" id="6_uu3sg"]
-[ext_resource type="Script" uid="uid://ckedfcjjnv7dq" path="res://systems/bullets/spawn_patterns/spawn_pattern_randomizer.gd" id="7_4oowd"]
 [ext_resource type="Texture2D" uid="uid://cgqgb84k38tbe" path="res://graphics/bullets/normal_bullet/test_bullet_overlay.png" id="7_sle1e"]
+[ext_resource type="Script" uid="uid://t5lnmlng1vey" path="res://systems/bullets/spawn_patterns/spread_pattern.gd" id="8_sle1e"]
 
 [sub_resource type="Resource" id="Resource_c0i5a"]
 script = ExtResource("4_4oowd")
@@ -29,23 +28,12 @@ frames = 2
 fps = 10.0
 metadata/_custom_type_script = "uid://0ognvvq2ncd7"
 
-[sub_resource type="Resource" id="Resource_4oowd"]
-script = ExtResource("6_uu3sg")
-bullet_count = 1
-bullet_speed = 120.0
-metadata/_custom_type_script = "uid://dtuc6qerbfset"
-
-[sub_resource type="Resource" id="Resource_sle1e"]
-script = ExtResource("7_4oowd")
-pattern = SubResource("Resource_4oowd")
-property_min_values = Dictionary[StringName, float]({
-&"direction_rotation": -3.142
-})
-property_max_values = Dictionary[StringName, float]({
-&"direction_rotation": 3.142
-})
-iterations = 50
-metadata/_custom_type_script = "uid://ckedfcjjnv7dq"
+[sub_resource type="Resource" id="Resource_uu3sg"]
+script = ExtResource("8_sle1e")
+bullet_count = 3
+bullet_speed = 60.0
+spread = 1.0471975511965976
+metadata/_custom_type_script = "uid://t5lnmlng1vey"
 
 [sub_resource type="Resource" id="Resource_hxqcc"]
 script = ExtResource("6_sle1e")
@@ -54,9 +42,9 @@ hitbox_size = Vector2i(6, 6)
 base_graphics = Array[ExtResource("4_4oowd")]([SubResource("Resource_c0i5a")])
 overlay_graphics = Array[ExtResource("4_4oowd")]([SubResource("Resource_1xo0o")])
 colors = Array[Color]([Color(1, 0, 0, 1), Color(0, 0, 1, 1), Color(0, 1, 0, 1), Color(1, 1, 0, 1)])
-pattern = SubResource("Resource_sle1e")
+pattern = SubResource("Resource_uu3sg")
 rounds = 99999999
-round_delay = 0.5
+round_delay = 0.2
 metadata/_custom_type_script = "uid://vus1a0flwtnm"
 
 [node name="TestScene" type="Node"]
@@ -73,6 +61,7 @@ position = Vector2(122, 283)
 
 [node name="BulletSet" type="Node2D" parent="."]
 position = Vector2(122, 92)
+rotation = 1.5707964
 script = ExtResource("3_cf1so")
 preset = SubResource("Resource_hxqcc")
 metadata/_custom_type_script = "uid://cj2fj7snls8aa"

systems/bullets/spawn_patterns/spawn_pattern_stacker.gd

@@ -0,0 +1,32 @@
+@tool
+class_name SpawnPatternStacker
+extends BulletSpawnPattern
+## Spawns a pattern in a "stack". The pattern will be spawned multiple
+## times at once with a varying [code]bullet_speed[/code].
+
+
+## The subpattern to stack.
+@export var pattern: BulletSpawnPattern
+## The number of times to "stack" up the pattern.
+@export_range(1, 1, 1, "or_greater") var stack_count: int = 1
+## The minimum speed of the stacked patterns.
+@export var min_speed: float:
+	set(value):
+		if min_speed != value:
+			min_speed = value
+			max_speed = maxf(min_speed, max_speed)
+## The maximum speed of the stacked patterns.
+@export var max_speed: float:
+	set(value):
+		if max_speed != value:
+			max_speed = value
+			min_speed = minf(min_speed, max_speed)
+
+
+func _spawn_bullets(bullet_set: BulletSet, preset: BulletPreset) -> void:
+	for i in stack_count:
+		pattern.set(
+			&"bullet_speed",
+			remap(float(i), 0.0, float(stack_count - 1), min_speed, max_speed)
+		)
+		pattern.spawn_bullets(bullet_set, preset)

systems/bullets/spawn_patterns/spawn_pattern_stacker.gd.uid

@@ -0,0 +1 @@
+uid://drxrjgbmeglwp

systems/bullets/spawn_patterns/spread_pattern.gd

@@ -0,0 +1,27 @@
+class_name SpreadPattern
+extends BulletSpawnPattern
+
+
+## Number of bullets to spawn along the spread.
+@export_range(1, 1, 1, "or_greater") var bullet_count: int
+## The speed that bullets will start with.
+@export var bullet_speed: float
+
+## Angular distance between first and last bullet.
+@export_range(0.0, 360.0, 0.1, "radians_as_degrees") var spread
+## Radius of the arc that bullets spawn along the edge of.
+@export var radius: float
+## Rotation of the entire pattern.
+@export_custom(0, "radians_as_degrees") var angle_offset: float
+## Rotation of each bullet's travel direction.
+@export_custom(0, "radians_as_degrees") var direction_rotation: float
+
+
+func _spawn_bullets(bullet_set: BulletSet, preset: BulletPreset) -> void:
+	for i in bullet_count:
+		var angle = remap(float(i), 0.0, float(bullet_count - 1), -spread * 0.5, spread * 0.5)
+		angle += angle_offset + bullet_set.spawn_rotation
+		var bullet = Bullet.create(preset, Vector2.from_angle(angle + direction_rotation))
+		bullet.speed = bullet_speed
+		bullet.position = bullet_set.spawn_offset + Vector2.from_angle(angle) * radius
+		bullet_set.add_bullet(bullet)

systems/bullets/spawn_patterns/spread_pattern.gd.uid

@@ -0,0 +1 @@
+uid://t5lnmlng1vey