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Overly complex method of painting a bar

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This commit is contained in:
Rob Kelly 2025-03-01 18:20:44 -07:00
parent 31b93c27ea
commit 38404acb3c
5 changed files with 107 additions and 26 deletions
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11
levels/sandbox/sandbox.tscn
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@ -1,4 +1,4 @@
[gd_scene load_steps=37 format=3 uid="uid://16ds4fvv72xk"]
[gd_scene load_steps=39 format=3 uid="uid://16ds4fvv72xk"]
[ext_resource type="PackedScene" uid="uid://c2omlx4ptrc01" path="res://src/world/gunk_body/gunk_body.tscn" id="1_a67lu"]
[ext_resource type="PackedScene" uid="uid://bwe2jdmvinhqd" path="res://src/player/player.tscn" id="1_h436a"]
@ -9,13 +9,18 @@
[ext_resource type="ArrayMesh" uid="uid://bwgiytiic3t32" path="res://assets/props/cube/cube.obj" id="6_4kku3"]
[ext_resource type="ArrayMesh" uid="uid://dchtriuljuloj" path="res://assets/props/cylinder/cylinder.obj" id="7_gn6k6"]
[sub_resource type="ProceduralSkyMaterial" id="ProceduralSkyMaterial_cj8bk"]
[sub_resource type="Sky" id="Sky_8jqw1"]
sky_material = SubResource("ProceduralSkyMaterial_cj8bk")
[sub_resource type="Environment" id="Environment_cc548"]
background_mode = 1
background_mode = 2
sky = SubResource("Sky_8jqw1")
ambient_light_source = 2
ambient_light_color = Color(1, 1, 1, 1)
ambient_light_energy = 0.06
tonemap_mode = 3
fog_enabled = true
fog_light_color = Color(0, 0, 0, 1)
fog_density = 0.2

29
src/player/player.gd
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@ -7,7 +7,7 @@ const JUMP_FORCE := 4.5
const GROUND_FRICTION := 0.3
const AIR_FRICTION := 0.03
const SPRAY_RADIUS := 8
const SPRAY_SCALE := 8
var gravity: Vector3 = (
ProjectSettings.get_setting("physics/3d/default_gravity")
@ -16,6 +16,8 @@ var gravity: Vector3 = (
@onready var camera_pivot: Node3D = %CameraPivot
@onready var spray_muzzle: Marker3D = %SprayMuzzle
@onready var ray_cast_left: RayCast3D = %RayCastLeft
@onready var ray_cast_right: RayCast3D = %RayCastRight
@onready var spray_effect: MeshInstance3D = %SprayEffect
@ -34,15 +36,24 @@ func get_friction() -> float:
return AIR_FRICTION
func _scale_spray_point(point: Vector3) -> float:
return point.distance_to(spray_muzzle.global_position) * SPRAY_SCALE
func fire_spray() -> void:
for raycast: RayCast3D in get_tree().get_nodes_in_group("SprayCast"):
if raycast.is_colliding():
var collider := raycast.get_collider()
if collider is GunkBody:
# Adjust radius to compensate for distance from muzzle
var point := raycast.get_collision_point()
var radius := sqrt(point.distance_to(spray_muzzle.global_position)) * SPRAY_RADIUS
(collider as GunkBody).paint_mask(point, raycast.get_collision_normal(), radius)
if ray_cast_left.is_colliding() and ray_cast_right.is_colliding():
var collider := ray_cast_left.get_collider()
if collider is GunkBody and collider == ray_cast_right.get_collider():
var point_left := ray_cast_left.get_collision_point()
var point_right := ray_cast_right.get_collision_point()
(collider as GunkBody).paint_bar(
point_left,
ray_cast_left.get_collision_normal(),
_scale_spray_point(point_left),
point_right,
ray_cast_right.get_collision_normal(),
_scale_spray_point(point_right)
)
func _physics_process(delta: float) -> void:

19
src/player/player.tscn
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@ -38,20 +38,13 @@ mesh = SubResource("BoxMesh_ua7a2")
unique_name_in_owner = true
transform = Transform3D(1, 0, 0, 0, 0.997564, -0.0697565, 0, 0.0697565, 0.997564, 0, 0, -0.15)
[node name="RayCast3D" type="RayCast3D" parent="CameraPivot/SprayNozzle/SprayMuzzle" groups=["SprayCast"]]
target_position = Vector3(-0.2, 0, -2)
[node name="RayCastLeft" type="RayCast3D" parent="CameraPivot/SprayNozzle/SprayMuzzle" groups=["SprayCast"]]
unique_name_in_owner = true
target_position = Vector3(-0.25, 0, -2)
[node name="RayCast3D2" type="RayCast3D" parent="CameraPivot/SprayNozzle/SprayMuzzle" groups=["SprayCast"]]
target_position = Vector3(-0.1, 0, -2)
[node name="RayCast3D3" type="RayCast3D" parent="CameraPivot/SprayNozzle/SprayMuzzle" groups=["SprayCast"]]
target_position = Vector3(0, 0, -2)
[node name="RayCast3D4" type="RayCast3D" parent="CameraPivot/SprayNozzle/SprayMuzzle" groups=["SprayCast"]]
target_position = Vector3(0.1, 0, -2)
[node name="RayCast3D5" type="RayCast3D" parent="CameraPivot/SprayNozzle/SprayMuzzle" groups=["SprayCast"]]
target_position = Vector3(0.2, 0, -2)
[node name="RayCastRight" type="RayCast3D" parent="CameraPivot/SprayNozzle/SprayMuzzle" groups=["SprayCast"]]
unique_name_in_owner = true
target_position = Vector3(0.25, 0, -2)
[node name="SprayEffect" type="MeshInstance3D" parent="CameraPivot/SprayNozzle/SprayMuzzle"]
unique_name_in_owner = true

73
src/world/gunk_body/gunk_body.gd
View File

@ -4,6 +4,18 @@ class_name GunkBody extends StaticBody3D
const FACE_EPSILON := 0.4
const MASK_COLOR := Color.RED
const WRAPPINGS := [
Vector2(-1, -1),
Vector2(-1, 0),
Vector2(-1, 1),
Vector2(0, -1),
Vector2(0, 0),
Vector2(0, 1),
Vector2(1, -1),
Vector2(1, 0),
Vector2(1, 1),
]
@export var mask_dim := 1024
var meshtool := MeshDataTool.new()
@ -75,7 +87,7 @@ func _get_uv(point: Vector3, normal: Vector3) -> Vector2:
## Paint a circle on the mask at a given point & normal on the mesh.
func paint_mask(point: Vector3, normal: Vector3, radius: int) -> void:
func paint_mask(point: Vector3, normal: Vector3, radius: float) -> void:
var local_point := point * global_transform
var local_normal := normal * global_basis
var uv := _get_uv(local_point, local_normal)
@ -85,3 +97,62 @@ func paint_mask(point: Vector3, normal: Vector3, radius: int) -> void:
mask_control.queue_draw(
func() -> void: mask_control.draw_circle(px_center, radius, MASK_COLOR, true, -1, true)
)
func paint_line(
point_a: Vector3, normal_a: Vector3, point_b: Vector3, normal_b: Vector3, width: float
) -> void:
var uv_a := _get_uv(point_a * global_transform, normal_a * global_basis)
var uv_b := _get_uv(point_b * global_transform, normal_b * global_basis)
if uv_a == Vector2.INF or uv_b == Vector2.INF:
return
var px_a := uv_a * mask_control.size
var px_b := uv_b * mask_control.size
mask_control.queue_draw(
func() -> void: mask_control.draw_line(px_a, px_b, MASK_COLOR, width, true)
)
func _render_bar(uv_a: Vector2, scale_a: float, uv_b: Vector2, scale_b: float) -> void:
var diff := (uv_b - uv_a).normalized()
var ortho := diff.orthogonal()
var points := PackedVector2Array(
[
uv_a + ortho * scale_a,
uv_a - ortho * scale_a,
uv_b - ortho * scale_b,
uv_b + ortho * scale_b,
]
)
mask_control.queue_draw(func() -> void: mask_control.draw_colored_polygon(points, MASK_COLOR))
func paint_bar(
point_a: Vector3,
normal_a: Vector3,
scale_a: float,
point_b: Vector3,
normal_b: Vector3,
scale_b: float
) -> void:
var uv_a := _get_uv(point_a * global_transform, normal_a * global_basis) * mask_control.size
var uv_b := _get_uv(point_b * global_transform, normal_b * global_basis) * mask_control.size
if uv_a == Vector2.INF or uv_b == Vector2.INF:
return # TODO just draw square around one valid point
var closest_b := uv_b
var wrapped_a := uv_a
var dist_sq := INF
for wrap_vec: Vector2 in WRAPPINGS:
var wrapped_b := uv_b + wrap_vec * mask_dim
var d := wrapped_b.distance_squared_to(uv_a)
if d < dist_sq:
closest_b = wrapped_b
wrapped_a = uv_a - wrap_vec * mask_dim
dist_sq = d
_render_bar(uv_a, scale_a, closest_b, scale_b)
_render_bar(wrapped_a, scale_a, uv_b, scale_b)

1
src/world/gunk_body/gunk_body.tscn
View File

@ -11,6 +11,7 @@ unique_name_in_owner = true
handle_input_locally = false
msaa_2d = 3
canvas_item_default_texture_filter = 0
canvas_item_default_texture_repeat = 1
size = Vector2i(1024, 1024)
render_target_clear_mode = 1
render_target_update_mode = 4