1 files changed, 49 insertions, 0 deletions
diff --git a/world/chunk/ChunkGen.gd b/world/chunk/ChunkGen.gd
new file mode 100644
index 0000000..5e99be8
--- /dev/null
+++ b/world/chunk/ChunkGen.gd
@@ -0,0 +1,49 @@
+extends Node
+
+var chunk_half_size setget _set_chunk_size
+var chunk_size
+
+func _set_chunk_size(val):
+    chunk_half_size = val
+    chunk_size = val * 2.0
+
+onready var noise = OpenSimplexNoise.new()
+
+func _ready():
+    randomize()
+    noise.seed = randi()
+    noise.octaves = 4
+    noise.period = 64
+    noise.persistence = 0.001
+    noise.lacunarity = 2.0
+
+func gen_chunk(chunk):
+    var gen_tree = Spatial.new()
+    gen_tree.name = "gen_tree"
+    chunk.add_child(gen_tree)
+    iterate_chunk(chunk, Vector2(10.0,10.0), funcref(self,"gen_rocks"))
+
+func v2_coords(coords:Vector3):
+    return Vector2(coords.x,coords.z)
+
+func v3_coords(coords:Vector2):
+    return Vector3(coords.x,0.0,coords.y)
+
+func iterate_chunk(chunk,step:Vector2,cb:FuncRef):
+    var chunk_size_rounded = Vector2(chunk_half_size,chunk_half_size).snapped(step)
+    for x in range(-chunk_size_rounded.x,chunk_size_rounded.x,step.x):
+        for y in range(-chunk_size_rounded.y,chunk_size_rounded.y,step.y):
+            cb.call_func(chunk,Vector2(x,y))
+
+onready var Rock = preload("res://world/obstacles/Rock.tscn")
+const rock_size = 5.0
+func make_rock(chunk,xform:Transform):
+    var rock = Rock.instance()
+    rock.transform = xform
+    chunk.get_node("gen_tree").add_child(rock)
+
+func gen_rocks(chunk,chunk_coords:Vector2):
+    var world_coords = chunk_coords + v2_coords(chunk.transform.origin)
+    var noise_val = self.noise.get_noise_2dv(world_coords)
+    if noise_val > 0.4:
+        make_rock(chunk,Transform(Basis().scaled(Vector3(2.0,2.0,2.0)),v3_coords(chunk_coords)))