114 lines
2.7 KiB
GDScript
114 lines
2.7 KiB
GDScript
extends CharacterBody3D
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enum Direction {
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NORTH,
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SOUTH,
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WEST,
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EAST
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}
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var speed:float = 150;
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var friction:float = 8.5;
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var gravity:float = 30;
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var direction = Direction.SOUTH;
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var meshInstance:MeshInstance3D;
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var underFootTile:int = -1;
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var underFootPosition:Vector3;
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func getDirectionVector() -> Vector3:
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match direction:
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Direction.NORTH:
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return Vector3(0, 0, -1);
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Direction.SOUTH:
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return Vector3(0, 0, 1);
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Direction.WEST:
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return Vector3(-1, 0, 0);
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Direction.EAST:
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return Vector3(1, 0, 0);
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return Vector3(0, 0, 0);
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# Virtual Methods
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func updateMovement(delta) -> void:
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pass
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func updateOverworldLogic(delta) -> void:
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pass
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# Private methods
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func _updateTileData() -> void:
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# ray cast down
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var offset = Vector3(0, 0, 0.426);
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var query = PhysicsRayQueryParameters3D.create(
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position + offset,
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position + Vector3(0, -1, 0) + offset
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)
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query.collide_with_areas = true
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query.exclude = [self]
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var result = get_world_3d().direct_space_state.intersect_ray(query)
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if !result or !result.collider:
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return;
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var collider = result.collider;
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var colliderMesh = collider.get_node("../");
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if !colliderMesh or !colliderMesh.mesh or colliderMesh.mesh.get_surface_count() == 0:
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return;
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# Get the face index (triangle)
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var arrays = colliderMesh.mesh.surface_get_arrays(0);
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var indiceIdx = result.face_index * 3;
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# Get each indice of the triangle
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var index0 = arrays[Mesh.ARRAY_INDEX][indiceIdx+0];
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var index1 = arrays[Mesh.ARRAY_INDEX][indiceIdx+1];
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var index2 = arrays[Mesh.ARRAY_INDEX][indiceIdx+2];
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# Get each uv of each indice
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var uv0:Vector2 = arrays[Mesh.ARRAY_TEX_UV][index0];
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var uv1:Vector2 = arrays[Mesh.ARRAY_TEX_UV][index1];
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var uv2:Vector2 = arrays[Mesh.ARRAY_TEX_UV][index2];
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# Determine the lowest texture coordinate
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var min = Vector2(min(uv0.x, uv1.x, uv2.x), min(uv0.y, uv1.y, uv2.y));
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# Convert to column/row
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var w = 768;
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var h = w;
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var tw = 48;
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var th = tw;
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var column = int(roundf(min.x * w)) / 48;
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var row = int(roundf(min.y * h)) / 48;
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var columns = 768 / 48;
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underFootPosition = result.position;
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underFootTile = column % columns + row * columns;
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# Events
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func _ready() -> void:
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meshInstance = get_node("MeshInstance3D")
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_updateTileData();
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pass
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func _process(delta:float) -> void:
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# Update logic
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updateOverworldLogic(delta)
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# Set shader direction.
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var material:ShaderMaterial = meshInstance.get_surface_override_material(0)
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material.set_shader_parameter("direction", direction)
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func _physics_process(delta: float) -> void:
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# Update movement
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updateMovement(delta);
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# Gravity and friction
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if !is_on_floor():
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velocity.y -= gravity * delta;
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else:
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velocity += -(velocity * friction * delta);
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if velocity.length() != 0:
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_updateTileData();
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# Update character controller.
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move_and_slide();
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