Prototype procedurally generated world with rocks

3 files changed, 106 insertions, 6 deletions

diff --git a/Main.tscn b/Main.tscn
index 64f4b44..5a2d3dd 100644
--- a/Main.tscn
+++ b/Main.tscn
@@ -1,12 +1,12 @@
-[gd_scene load_steps=17 format=2]
+[gd_scene load_steps=18 format=2]
 
 [ext_resource path="res://character/fps_controller/fps_controller.tscn" type="PackedScene" id=1]
 [ext_resource path="res://ship/ship/ship.tscn" type="PackedScene" id=2]
 [ext_resource path="res://water/Water.tscn" type="PackedScene" id=3]
 [ext_resource path="res://Float.tscn" type="PackedScene" id=4]
 [ext_resource path="res://ship/ship/crate.tscn" type="PackedScene" id=5]
-[ext_resource path="res://World.gd" type="Script" id=5]
-[ext_resource path="res://Raft.gd" type="Script" id=6]
+[ext_resource path="res://World.gd" type="Script" id=6]
+[ext_resource path="res://Raft.gd" type="Script" id=7]
 
 [sub_resource type="BoxShape" id=19]
 extents = Vector3( 1000, 0.1, 1000 )
@@ -34,6 +34,9 @@ transform_array = PoolVector3Array( 0.35759, 0, -0.933879, 0, 1, 0, 0.933879, 0,
 radius = 11.4853
 height = 97.7559
 [sub_resource type="BoxShape" id=23]
+[sub_resource type="BoxShape" id=24]
+extents = Vector3( 500, 1000, 500 )
+
 [node name="Main" type="Spatial"]
 
 [node name="DirectionalLight" type="DirectionalLight" parent="."]
@@ -70,7 +73,7 @@ axis_lock_angular_x = true
 axis_lock_angular_y = true
 axis_lock_angular_z = true
 linear_damp = 0.5
-script = ExtResource( 5 )
+script = ExtResource( 6 )
 
 [node name="MultiMeshInstance" type="MultiMeshInstance" parent="World"]
 transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, -3.18141, 0 )
@@ -80,6 +83,13 @@ multimesh = SubResource( 16 )
 [node name="CollisionShape" type="CollisionShape" parent="World"]
 shape = SubResource( 23 )
 
+[node name="WorldGenCull" type="Area" parent="."]
+collision_layer = 0
+collision_mask = 8
+
+[node name="CollisionShape" type="CollisionShape" parent="WorldGenCull"]
+shape = SubResource( 24 )
+
 [node name="ShipRigidBody" type="RigidBody" parent="."]
 collision_layer = 2
 collision_mask = 8
@@ -88,7 +98,7 @@ axis_lock_linear_x = true
 axis_lock_linear_z = true
 linear_damp = 2.0
 angular_damp = 2.0
-script = ExtResource( 6 )
+script = ExtResource( 7 )
 
 [node name="CollisionShape" type="CollisionShape" parent="ShipRigidBody"]
 transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 2.78898, 0 )
@@ -964,6 +974,7 @@ transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, -6.11794, 1.56126, 8.23821 )
 [node name="crate418" parent="crates" instance=ExtResource( 5 )]
 transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, -6.11794, 1.56126, 6.20522 )
 
+[connection signal="body_exited" from="WorldGenCull" to="World" method="_on_WorldGenCull_body_exited"]
 [node name="crate419" parent="crates" instance=ExtResource( 5 )]
 transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, -6.11794, 1.56126, 4.18901 )
 
diff --git a/Rock.tscn b/Rock.tscn
new file mode 100644
index 0000000..4ae8397
--- /dev/null
+++ b/Rock.tscn
@@ -0,0 +1,38 @@
+[gd_scene load_steps=7 format=2]
+
+[sub_resource type="ConvexPolygonShape" id=2]
+points = PoolVector3Array( 2.5, -5, 2.5, 2.5, -5, -2.5, -2.5, -5, -2.5, -2.5, -5, 2.5, 0, 5, 2.5, 0, 5, -2.5 )
+
+[sub_resource type="PrismMesh" id=1]
+size = Vector3( 5, 10, 5 )
+
+[sub_resource type="OpenSimplexNoise" id=3]
+octaves = 4
+period = 32.0
+
+[sub_resource type="NoiseTexture" id=4]
+noise = SubResource( 3 )
+
+[sub_resource type="NoiseTexture" id=5]
+seamless = true
+as_normalmap = true
+bump_strength = 32.0
+noise = SubResource( 3 )
+
+[sub_resource type="SpatialMaterial" id=6]
+albedo_color = Color( 0.231373, 0.231373, 0.231373, 1 )
+albedo_texture = SubResource( 4 )
+normal_enabled = true
+normal_scale = 1.0
+normal_texture = SubResource( 5 )
+
+[node name="Rock" type="StaticBody"]
+collision_layer = 8
+collision_mask = 0
+
+[node name="CollisionShape" type="CollisionShape" parent="."]
+shape = SubResource( 2 )
+
+[node name="MeshInstance" type="MeshInstance" parent="."]
+mesh = SubResource( 1 )
+material/0 = SubResource( 6 )
diff --git a/World.gd b/World.gd
index c0d224b..a612572 100644
--- a/World.gd
+++ b/World.gd
@@ -1,6 +1,56 @@
 extends RigidBody
 
-export var acceleration = 10.0;
+export var acceleration = 10.0
+export var generation_distance = 500.0
+export var generation_subdivision = 5.0
+
+var gen_coords = Vector2.ZERO
+const init_distance = 10
+
+onready var Rock = preload("res://Rock.tscn")
+onready var noise = OpenSimplexNoise.new()
+
+func _on_WorldGenCull_body_exited(body:Node):
+    body.queue_free()
+
+func make_rock(xform:Transform):
+    var rock = Rock.instance()
+    rock.transform = xform
+    self.add_child(rock)
+
+func generate_location(coords:Vector2):
+    if coords.x < -init_distance || coords.x > init_distance ||  coords.y < -init_distance || coords.y > init_distance:
+        if noise.get_noise_2d(coords.x,coords.y) > 0.6:
+            coords *= generation_subdivision
+            make_rock(Transform(Basis(), Vector3(coords.x,0.0,coords.y)))
+
+func generate_world():
+    var new_coords = -(self.transform.origin / generation_subdivision).floor()
+    new_coords = Vector2(new_coords.x,new_coords.z)
+    var direction = new_coords - gen_coords
+    var gen_max = generation_distance / generation_subdivision
+    var gen_min = -gen_max
+    if gen_coords.x != new_coords.x:
+        for i in range(new_coords.y+gen_min,new_coords.y+gen_max):
+            generate_location(Vector2(new_coords.x+(gen_min if direction.x < 0  else gen_max),i))
+    if gen_coords.y != new_coords.y:
+        for i in range(new_coords.x+gen_min,new_coords.x+gen_max):
+            generate_location(Vector2(i,new_coords.y+(gen_min if direction.y < 0 else gen_max)))
+    gen_coords = new_coords
+
+func _ready():
+    randomize()
+    noise.seed = randi()
+    noise.octaves = 4
+    noise.period = 16
+    noise.persistence = 0.001
+    noise.lacunarity = 2.0
+
+    var gen_max = generation_distance / generation_subdivision
+    var gen_min = -gen_max
+    for i in range(gen_min,gen_max):
+        for j in range(gen_min,gen_max):
+            generate_location(Vector2(i,j))
 
 func travel(direction:Vector3):
     var boat = $"/root/Main/Raft"
@@ -12,6 +62,7 @@ func travel(direction:Vector3):
     self.add_central_force(direction*acceleration)
 
 func _integrate_forces(_state):
+    generate_world()
     var stick = Input.get_axis("ship_down","ship_up")
     if stick != 0.0:
         travel(Vector3.FORWARD*stick)