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/* SPDX-License-Identifier: GPL-2.0-or-later */
#include "BKE_curves.hh"
#include "UI_interface.h"
#include "UI_resources.h"
#include "node_geometry_util.hh"
namespace blender::nodes::node_geo_curve_primitive_line_cc {
NODE_STORAGE_FUNCS(NodeGeometryCurvePrimitiveLine)
static void node_declare(NodeDeclarationBuilder &b)
{
auto enable_direction = [](bNode &node) {
node_storage(node).mode = GEO_NODE_CURVE_PRIMITIVE_LINE_MODE_DIRECTION;
};
b.add_input<decl::Vector>(N_("Start"))
.subtype(PROP_TRANSLATION)
.description(N_("Position of the first control point"));
b.add_input<decl::Vector>(N_("End"))
.default_value({0.0f, 0.0f, 1.0f})
.subtype(PROP_TRANSLATION)
.description(N_("Position of the second control point"))
.make_available([](bNode &node) {
node_storage(node).mode = GEO_NODE_CURVE_PRIMITIVE_LINE_MODE_POINTS;
});
b.add_input<decl::Vector>(N_("Direction"))
.default_value({0.0f, 0.0f, 1.0f})
.description(N_("Direction the line is going in. The length of this vector does not matter"))
.make_available(enable_direction);
b.add_input<decl::Float>(N_("Length"))
.default_value(1.0f)
.subtype(PROP_DISTANCE)
.description(N_("Distance between the two points"))
.make_available(enable_direction);
b.add_output<decl::Geometry>(N_("Curve"));
}
static void node_layout(uiLayout *layout, bContext * /*C*/, PointerRNA *ptr)
{
uiItemR(layout, ptr, "mode", UI_ITEM_R_EXPAND, nullptr, ICON_NONE);
}
static void node_init(bNodeTree * /*tree*/, bNode *node)
{
NodeGeometryCurvePrimitiveLine *data = MEM_cnew<NodeGeometryCurvePrimitiveLine>(__func__);
data->mode = GEO_NODE_CURVE_PRIMITIVE_LINE_MODE_POINTS;
node->storage = data;
}
static void node_update(bNodeTree *ntree, bNode *node)
{
const NodeGeometryCurvePrimitiveLine &storage = node_storage(*node);
const GeometryNodeCurvePrimitiveLineMode mode = (GeometryNodeCurvePrimitiveLineMode)storage.mode;
bNodeSocket *p2_socket = static_cast<bNodeSocket *>(node->inputs.first)->next;
bNodeSocket *direction_socket = p2_socket->next;
bNodeSocket *length_socket = direction_socket->next;
nodeSetSocketAvailability(ntree, p2_socket, mode == GEO_NODE_CURVE_PRIMITIVE_LINE_MODE_POINTS);
nodeSetSocketAvailability(
ntree, direction_socket, mode == GEO_NODE_CURVE_PRIMITIVE_LINE_MODE_DIRECTION);
nodeSetSocketAvailability(
ntree, length_socket, mode == GEO_NODE_CURVE_PRIMITIVE_LINE_MODE_DIRECTION);
}
static Curves *create_point_line_curve(const float3 start, const float3 end)
{
Curves *curves_id = bke::curves_new_nomain_single(2, CURVE_TYPE_POLY);
bke::CurvesGeometry &curves = bke::CurvesGeometry::wrap(curves_id->geometry);
curves.positions_for_write().first() = start;
curves.positions_for_write().last() = end;
return curves_id;
}
static Curves *create_direction_line_curve(const float3 start,
const float3 direction,
const float length)
{
Curves *curves_id = bke::curves_new_nomain_single(2, CURVE_TYPE_POLY);
bke::CurvesGeometry &curves = bke::CurvesGeometry::wrap(curves_id->geometry);
curves.positions_for_write().first() = start;
curves.positions_for_write().last() = math::normalize(direction) * length + start;
return curves_id;
}
static void node_geo_exec(GeoNodeExecParams params)
{
const NodeGeometryCurvePrimitiveLine &storage = node_storage(params.node());
const GeometryNodeCurvePrimitiveLineMode mode = (GeometryNodeCurvePrimitiveLineMode)storage.mode;
Curves *curves = nullptr;
if (mode == GEO_NODE_CURVE_PRIMITIVE_LINE_MODE_POINTS) {
curves = create_point_line_curve(params.extract_input<float3>("Start"),
params.extract_input<float3>("End"));
}
else if (mode == GEO_NODE_CURVE_PRIMITIVE_LINE_MODE_DIRECTION) {
curves = create_direction_line_curve(params.extract_input<float3>("Start"),
params.extract_input<float3>("Direction"),
params.extract_input<float>("Length"));
}
params.set_output("Curve", GeometrySet::create_with_curves(curves));
}
} // namespace blender::nodes::node_geo_curve_primitive_line_cc
void register_node_type_geo_curve_primitive_line()
{
namespace file_ns = blender::nodes::node_geo_curve_primitive_line_cc;
static bNodeType ntype;
geo_node_type_base(&ntype, GEO_NODE_CURVE_PRIMITIVE_LINE, "Curve Line", NODE_CLASS_GEOMETRY);
ntype.initfunc = file_ns::node_init;
ntype.updatefunc = file_ns::node_update;
node_type_storage(&ntype,
"NodeGeometryCurvePrimitiveLine",
node_free_standard_storage,
node_copy_standard_storage);
ntype.declare = file_ns::node_declare;
ntype.geometry_node_execute = file_ns::node_geo_exec;
ntype.draw_buttons = file_ns::node_layout;
nodeRegisterType(&ntype);
}
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