add conveyor direction indicator

7 files changed, 99 insertions, 5 deletions

diff --git a/client/global.gd b/client/global.gd
index 691a85c7..39418e2f 100644
--- a/client/global.gd
+++ b/client/global.gd
@@ -203,10 +203,10 @@ func set_setting(key: String, value):
 		return
 	settings[key].set_value(value)
 
-func interpolate(current, target, dt):
+static func interpolate(current, target, dt):
 	return target + (current - target) * exp(-dt)
 
-func interpolate_angle(current, target, dt):
+static func interpolate_angle(current, target, dt):
 	if abs(target - current) > PI:
 		if target < 0:
 			target += PI * 2
diff --git a/client/map/tiles/conveyor.gd b/client/map/tiles/conveyor.gd
index 93bd4282..d920915c 100644
--- a/client/map/tiles/conveyor.gd
+++ b/client/map/tiles/conveyor.gd
@@ -16,10 +16,16 @@
 class_name Conveyor
 extends Floor
 
+var conveyor: ConveyorModel = preload("res://map/tiles/conveyor.tscn").instantiate()
+
 func _init(rename: String, neighbors: Array):
 	super(rename, neighbors)
-	var conveyor = preload("res://map/tiles/conveyor.tscn").instantiate()
 	base.add_child(conveyor)
 
 static func interact_target() -> Vector3:
 	return Vector3(0., .425, 0.)
+
+func pass_to(tile: Tile):
+	super(tile)
+	var dir: Vector3 = (tile.position - position)
+	conveyor.to_direction(Vector2(dir.x, dir.z).normalized())
diff --git a/client/map/tiles/conveyor.tscn b/client/map/tiles/conveyor.tscn
index 3a5d3a83..5e71bcec 100644
--- a/client/map/tiles/conveyor.tscn
+++ b/client/map/tiles/conveyor.tscn
@@ -1,10 +1,28 @@
-[gd_scene load_steps=2 format=3 uid="uid://df5wbypoqbkf"]
+[gd_scene load_steps=6 format=3 uid="uid://df5wbypoqbkf"]
 
 [ext_resource type="ArrayMesh" uid="uid://djet05vuyh6iv" path="res://map/tiles/conveyor.res" id="1_hoctt"]
+[ext_resource type="Script" path="res://map/tiles/conveyor_model.gd" id="1_xdf1u"]
+[ext_resource type="PackedScene" uid="uid://60wue8ult1bx" path="res://map/tiles/conveyor_direction.tscn" id="2_sf55l"]
+[ext_resource type="Shader" path="res://map/tiles/conveyor_direction.gdshader" id="4_8s3rd"]
+
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_bgatf"]
+resource_local_to_scene = true
+render_priority = 0
+shader = ExtResource("4_8s3rd")
+shader_parameter/angle = 0.2
+shader_parameter/frequency = 0.5
+shader_parameter/width = 0.2
+shader_parameter/speed = 1.0
+shader_parameter/alpha_fac = 1.0
 
 [node name="Conveyor" type="Node3D"]
+script = ExtResource("1_xdf1u")
 
 [node name="Mesh" type="MeshInstance3D" parent="."]
 transform = Transform3D(0.5, 0, 0, 0, 0.5, 0, 0, 0, 0.5, 0, 0, 0)
 mesh = ExtResource("1_hoctt")
 skeleton = NodePath("")
+
+[node name="ConveyorDirection" parent="." instance=ExtResource("2_sf55l")]
+transform = Transform3D(1, 0, 0, 0, -4.37114e-08, 1, 0, -1, -4.37114e-08, 0, 0.43, 0)
+surface_material_override/0 = SubResource("ShaderMaterial_bgatf")
diff --git a/client/map/tiles/conveyor_direction.gdshader b/client/map/tiles/conveyor_direction.gdshader
new file mode 100644
index 00000000..7b3565e6
--- /dev/null
+++ b/client/map/tiles/conveyor_direction.gdshader
@@ -0,0 +1,34 @@
+/*
+    Hurry Curry! - a game about cooking
+    Copyright 2024 nokoe
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, version 3 of the License only.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+*/
+shader_type spatial;
+
+uniform float angle = .2;
+uniform float frequency = .5;
+uniform float width = .2;
+uniform float speed = 1.;
+uniform float alpha_fac = 1.;
+
+void fragment() {
+	ALBEDO = vec3(1., 1., 0.);
+	vec2 uv = UV.xy;
+	uv.x = abs(2. * uv.x - 1.);
+	float alpha = step(
+		mod(uv.y - TIME * speed + angle * uv.x, frequency), width
+	);
+	ALPHA = alpha * alpha_fac;
+}
diff --git a/client/map/tiles/conveyor_direction.tscn b/client/map/tiles/conveyor_direction.tscn
new file mode 100644
index 00000000..9d407683
--- /dev/null
+++ b/client/map/tiles/conveyor_direction.tscn
@@ -0,0 +1,21 @@
+[gd_scene load_steps=4 format=3 uid="uid://60wue8ult1bx"]
+
+[ext_resource type="Shader" path="res://map/tiles/conveyor_direction.gdshader" id="1_47s57"]
+
+[sub_resource type="QuadMesh" id="QuadMesh_hr8jj"]
+size = Vector2(0.8, 1)
+
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_h5q6r"]
+resource_local_to_scene = true
+render_priority = 0
+shader = ExtResource("1_47s57")
+shader_parameter/angle = 0.2
+shader_parameter/frequency = 0.5
+shader_parameter/width = 0.2
+shader_parameter/speed = 1.0
+shader_parameter/alpha_fac = 1.0
+
+[node name="ConveyorDirection" type="MeshInstance3D"]
+transform = Transform3D(1, 0, 0, 0, 1.19249e-08, 1, 0, -1, 1.19249e-08, 0, 0, 0)
+mesh = SubResource("QuadMesh_hr8jj")
+surface_material_override/0 = SubResource("ShaderMaterial_h5q6r")
diff --git a/client/map/tiles/conveyor_model.gd b/client/map/tiles/conveyor_model.gd
new file mode 100644
index 00000000..7dd48957
--- /dev/null
+++ b/client/map/tiles/conveyor_model.gd
@@ -0,0 +1,15 @@
+class_name ConveyorModel
+extends Node3D
+
+var alpha: float = 0.
+
+@onready var mat: ShaderMaterial = $ConveyorDirection.get_active_material(0)
+
+func _process(delta):
+	alpha = Global.interpolate(alpha, 0., delta)
+	mat.set_shader_parameter("alpha_fac", alpha)
+
+func to_direction(direction: Vector2):
+	direction.y *= -1
+	$ConveyorDirection.rotation.y = direction.angle() + .5 * PI
+	alpha = 1.
diff --git a/client/player/interact_marker.gdshader b/client/player/interact_marker.gdshader
index 6f3cd435..1a1b9c63 100644
--- a/client/player/interact_marker.gdshader
+++ b/client/player/interact_marker.gdshader
@@ -1,6 +1,6 @@
 /*
     Hurry Curry! - a game about cooking
-    Copyright 2024 metamuffin
+    Copyright 2024 nokoe
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU Affero General Public License as published by