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Josh Creek
c75e142c8a
Adds a [layer_names] section to project.godot (Ships/Ball/Arena/
GoalSensor) and sets collision_layer/collision_mask on the 4 physics
body roots (Ship, Ball, Goal Area3D, ArenaBoundary StaticBody3D),
which previously all sat on the default layer 1 / mask 1 so every
body broadphase-tested against every other.
Ships collide with ships/ball/arena but no longer test against the
goal sensor; the goal's mask (Ball only) is the physics-level fix for
what goal.gd's is_in_group("ball") check was doing defensively in
code (left in place, now a no-op guard). ArenaBoundary's runtime-
generated CollisionShape3D children inherit layer/mask from the
StaticBody3D root automatically.
Verified live via godot-mcp under Jolt Physics: ship-vs-ship and
ship-vs-ball collisions still transfer momentum, the ball still
bounces off arena walls, a ball entering a goal still fires
goal_scored (score updates / HUD reset), and a ship teleported into a
goal recess produces zero overlapping bodies on the goal Area3D (was
reachable before, physics-level fix confirmed, not just the code
guard). Headless smoke test (free_play.tscn) is clean.
31 lines
965 B
Plaintext
31 lines
965 B
Plaintext
[gd_scene load_steps=5 format=3 uid="uid://27u3tdc5yqnl"]
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[ext_resource type="ArrayMesh" path="res://assets/models/ball.res" id="1_ball"]
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[ext_resource type="Script" path="res://scripts/ball.gd" id="2_ball"]
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[sub_resource type="SphereShape3D" id="SphereShape3D_c5p07"]
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[sub_resource type="PhysicsMaterial" id="PhysicsMaterial_ball"]
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bounce = 0.5
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friction = 0.4
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[node name="Ball" type="RigidBody3D" groups=["ball"]]
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collision_layer = 2
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collision_mask = 13
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mass = 3
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physics_material_override = SubResource("PhysicsMaterial_ball")
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continuous_cd = true
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inertia = Vector3(3, 3, 3)
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gravity_scale = 0.8
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linear_damp = 0.1
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angular_damp = 0.1
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script = ExtResource("2_ball")
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metadata/_edit_group_ = true
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[node name="CollisionShape3D" type="CollisionShape3D" parent="."]
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shape = SubResource("SphereShape3D_c5p07")
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[node name="MeshInstance3D" type="MeshInstance3D" parent="."]
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transform = Transform3D(0.5, 0, 0, 0, 0.5, 0, 0, 0, 0.5, 0, 0, 0)
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mesh = ExtResource("1_ball")
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