Prototype procedurally generated world with rocks

1 files changed, 52 insertions, 1 deletions

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)