95 lines
2.8 KiB
GDScript
95 lines
2.8 KiB
GDScript
extends Node3D
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## M0 mood props — a few low-poly trees and rocks built from primitives in code,
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## so the scene looks "alive" with no imported assets. These are placeholders;
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## real low-poly models (free asset packs, see docs/ROADMAP.md M0) replace them.
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##
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## place_on(terrain) is called by world.gd once the terrain exists, so each prop
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## sits on the real ground height instead of floating at Y=0.
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var _terrain: Node3D
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func place_on(terrain: Node3D) -> void:
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_terrain = terrain
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var rng := RandomNumberGenerator.new()
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rng.seed = 42
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for i in range(18):
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var x := rng.randf_range(-55.0, 55.0)
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var z := rng.randf_range(-55.0, 55.0)
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var y: float = _terrain.sample_height(x, z)
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if rng.randf() < 0.65:
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_make_tree(Vector3(x, y, z), rng)
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else:
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_make_rock(Vector3(x, y, z), rng)
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func _make_tree(pos: Vector3, rng: RandomNumberGenerator) -> void:
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var root := Node3D.new()
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root.position = pos
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add_child(root)
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var trunk := MeshInstance3D.new()
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var tm := CylinderMesh.new()
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tm.top_radius = 0.18
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tm.bottom_radius = 0.28
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tm.height = 3.0
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trunk.mesh = tm
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trunk.position = Vector3(0, 1.5, 0)
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trunk.material_override = _mat(Color(0.33, 0.24, 0.16))
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root.add_child(trunk)
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# Collision: a capsule around the trunk so you can't walk through the tree.
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var body := StaticBody3D.new()
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root.add_child(body)
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var col := CollisionShape3D.new()
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var cap := CapsuleShape3D.new()
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cap.radius = 0.35
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cap.height = 4.0
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col.shape = cap
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col.position = Vector3(0, 2.0, 0)
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body.add_child(col)
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# Low-poly conifer canopy: stacked cones.
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var h := 3.0
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for j in range(3):
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var cone := MeshInstance3D.new()
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var cm := CylinderMesh.new()
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cm.top_radius = 0.0
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cm.bottom_radius = 1.6 - j * 0.4
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cm.height = 1.6
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cm.radial_segments = 6 # low-poly
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cone.mesh = cm
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cone.position = Vector3(0, h + j * 1.0, 0)
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cone.material_override = _mat(Color(0.16, 0.34, 0.2))
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root.add_child(cone)
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root.rotate_y(rng.randf_range(0, TAU))
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var s := rng.randf_range(0.85, 1.35)
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root.scale = Vector3(s, s, s)
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func _make_rock(pos: Vector3, rng: RandomNumberGenerator) -> void:
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var rock := MeshInstance3D.new()
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var bm := BoxMesh.new()
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var box_size := Vector3(rng.randf_range(0.8, 1.8), rng.randf_range(0.6, 1.2), rng.randf_range(0.8, 1.8))
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bm.size = box_size
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rock.mesh = bm
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rock.position = pos + Vector3(0, 0.3, 0)
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rock.rotation = Vector3(rng.randf_range(-0.2, 0.2), rng.randf_range(0, TAU), rng.randf_range(-0.2, 0.2))
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rock.material_override = _mat(Color(0.42, 0.42, 0.45))
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add_child(rock)
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# Collision: a box matching the rock mesh.
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var body := StaticBody3D.new()
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body.position = rock.position
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body.rotation = rock.rotation
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add_child(body)
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var col := CollisionShape3D.new()
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var box := BoxShape3D.new()
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box.size = box_size
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col.shape = box
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body.add_child(col)
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func _mat(c: Color) -> StandardMaterial3D:
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var m := StandardMaterial3D.new()
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m.albedo_color = c
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m.roughness = 0.95
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return m
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