/*************************************************************************/ /* line_2d.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /*************************************************************************/ #include "line_2d.h" #include "core/core_string_names.h" #include "core/math/geometry_2d.h" #include "line_builder.h" // Needed so we can bind functions VARIANT_ENUM_CAST(Line2D::LineJointMode) VARIANT_ENUM_CAST(Line2D::LineCapMode) VARIANT_ENUM_CAST(Line2D::LineTextureMode) Line2D::Line2D() { } #ifdef TOOLS_ENABLED Rect2 Line2D::_edit_get_rect() const { if (_points.size() == 0) { return Rect2(0, 0, 0, 0); } Vector2 d = Vector2(_width, _width); Rect2 aabb = Rect2(_points[0] - d, 2 * d); for (int i = 1; i < _points.size(); i++) { aabb.expand_to(_points[i] - d); aabb.expand_to(_points[i] + d); } return aabb; } bool Line2D::_edit_use_rect() const { return true; } bool Line2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const { const real_t d = _width / 2 + p_tolerance; const Vector2 *points = _points.ptr(); for (int i = 0; i < _points.size() - 1; i++) { Vector2 p = Geometry2D::get_closest_point_to_segment(p_point, &points[i]); if (p.distance_to(p_point) <= d) { return true; } } return false; } #endif void Line2D::set_points(const Vector<Vector2> &p_points) { _points = p_points; update(); } void Line2D::set_width(float p_width) { if (p_width < 0.0) { p_width = 0.0; } _width = p_width; update(); } float Line2D::get_width() const { return _width; } void Line2D::set_curve(const Ref<Curve> &p_curve) { // Cleanup previous connection if any if (_curve.is_valid()) { _curve->disconnect(CoreStringNames::get_singleton()->changed, callable_mp(this, &Line2D::_curve_changed)); } _curve = p_curve; // Connect to the curve so the line will update when it is changed if (_curve.is_valid()) { _curve->connect(CoreStringNames::get_singleton()->changed, callable_mp(this, &Line2D::_curve_changed)); } update(); } Ref<Curve> Line2D::get_curve() const { return _curve; } Vector<Vector2> Line2D::get_points() const { return _points; } void Line2D::set_point_position(int i, Vector2 p_pos) { ERR_FAIL_INDEX(i, _points.size()); _points.set(i, p_pos); update(); } Vector2 Line2D::get_point_position(int i) const { ERR_FAIL_INDEX_V(i, _points.size(), Vector2()); return _points.get(i); } int Line2D::get_point_count() const { return _points.size(); } void Line2D::clear_points() { int count = _points.size(); if (count > 0) { _points.clear(); update(); } } void Line2D::add_point(Vector2 p_pos, int p_atpos) { if (p_atpos < 0 || _points.size() < p_atpos) { _points.push_back(p_pos); } else { _points.insert(p_atpos, p_pos); } update(); } void Line2D::remove_point(int i) { _points.remove_at(i); update(); } void Line2D::set_default_color(Color p_color) { _default_color = p_color; update(); } Color Line2D::get_default_color() const { return _default_color; } void Line2D::set_gradient(const Ref<Gradient> &p_gradient) { // Cleanup previous connection if any if (_gradient.is_valid()) { _gradient->disconnect(CoreStringNames::get_singleton()->changed, callable_mp(this, &Line2D::_gradient_changed)); } _gradient = p_gradient; // Connect to the gradient so the line will update when the Gradient is changed if (_gradient.is_valid()) { _gradient->connect(CoreStringNames::get_singleton()->changed, callable_mp(this, &Line2D::_gradient_changed)); } update(); } Ref<Gradient> Line2D::get_gradient() const { return _gradient; } void Line2D::set_texture(const Ref<Texture2D> &p_texture) { _texture = p_texture; update(); } Ref<Texture2D> Line2D::get_texture() const { return _texture; } void Line2D::set_texture_mode(const LineTextureMode p_mode) { _texture_mode = p_mode; update(); } Line2D::LineTextureMode Line2D::get_texture_mode() const { return _texture_mode; } void Line2D::set_joint_mode(LineJointMode p_mode) { _joint_mode = p_mode; update(); } Line2D::LineJointMode Line2D::get_joint_mode() const { return _joint_mode; } void Line2D::set_begin_cap_mode(LineCapMode p_mode) { _begin_cap_mode = p_mode; update(); } Line2D::LineCapMode Line2D::get_begin_cap_mode() const { return _begin_cap_mode; } void Line2D::set_end_cap_mode(LineCapMode p_mode) { _end_cap_mode = p_mode; update(); } Line2D::LineCapMode Line2D::get_end_cap_mode() const { return _end_cap_mode; } void Line2D::_notification(int p_what) { switch (p_what) { case NOTIFICATION_DRAW: { _draw(); } break; } } void Line2D::set_sharp_limit(float p_limit) { if (p_limit < 0.f) { p_limit = 0.f; } _sharp_limit = p_limit; update(); } float Line2D::get_sharp_limit() const { return _sharp_limit; } void Line2D::set_round_precision(int p_precision) { _round_precision = MAX(1, p_precision); update(); } int Line2D::get_round_precision() const { return _round_precision; } void Line2D::set_antialiased(bool p_antialiased) { _antialiased = p_antialiased; update(); } bool Line2D::get_antialiased() const { return _antialiased; } void Line2D::_draw() { int len = _points.size(); if (len <= 1 || _width == 0.f) { return; } // TODO Is this really needed? // Copy points for faster access Vector<Vector2> points; points.resize(len); { const Vector2 *points_read = _points.ptr(); for (int i = 0; i < len; ++i) { points.write[i] = points_read[i]; } } // TODO Maybe have it as member rather than copying parameters and allocating memory? LineBuilder lb; lb.points = points; lb.default_color = _default_color; lb.gradient = *_gradient; lb.texture_mode = _texture_mode; lb.joint_mode = _joint_mode; lb.begin_cap_mode = _begin_cap_mode; lb.end_cap_mode = _end_cap_mode; lb.round_precision = _round_precision; lb.sharp_limit = _sharp_limit; lb.width = _width; lb.curve = *_curve; RID texture_rid; if (_texture.is_valid()) { texture_rid = _texture->get_rid(); lb.tile_aspect = _texture->get_size().aspect(); } lb.build(); RS::get_singleton()->canvas_item_add_triangle_array( get_canvas_item(), lb.indices, lb.vertices, lb.colors, lb.uvs, Vector<int>(), Vector<float>(), texture_rid); // DEBUG // Draw wireframe // if(lb.indices.size() % 3 == 0) { // Color col(0,0,0); // for(int i = 0; i < lb.indices.size(); i += 3) { // int vi = lb.indices[i]; // int lbvsize = lb.vertices.size(); // Vector2 a = lb.vertices[lb.indices[i]]; // Vector2 b = lb.vertices[lb.indices[i+1]]; // Vector2 c = lb.vertices[lb.indices[i+2]]; // draw_line(a, b, col); // draw_line(b, c, col); // draw_line(c, a, col); // } // for(int i = 0; i < lb.vertices.size(); ++i) { // Vector2 p = lb.vertices[i]; // draw_rect(Rect2(p.x-1, p.y-1, 2, 2), Color(0,0,0,0.5)); // } // } } void Line2D::_gradient_changed() { update(); } void Line2D::_curve_changed() { update(); } // static void Line2D::_bind_methods() { ClassDB::bind_method(D_METHOD("set_points", "points"), &Line2D::set_points); ClassDB::bind_method(D_METHOD("get_points"), &Line2D::get_points); ClassDB::bind_method(D_METHOD("set_point_position", "index", "position"), &Line2D::set_point_position); ClassDB::bind_method(D_METHOD("get_point_position", "index"), &Line2D::get_point_position); ClassDB::bind_method(D_METHOD("get_point_count"), &Line2D::get_point_count); ClassDB::bind_method(D_METHOD("add_point", "position", "index"), &Line2D::add_point, DEFVAL(-1)); ClassDB::bind_method(D_METHOD("remove_point", "index"), &Line2D::remove_point); ClassDB::bind_method(D_METHOD("clear_points"), &Line2D::clear_points); ClassDB::bind_method(D_METHOD("set_width", "width"), &Line2D::set_width); ClassDB::bind_method(D_METHOD("get_width"), &Line2D::get_width); ClassDB::bind_method(D_METHOD("set_curve", "curve"), &Line2D::set_curve); ClassDB::bind_method(D_METHOD("get_curve"), &Line2D::get_curve); ClassDB::bind_method(D_METHOD("set_default_color", "color"), &Line2D::set_default_color); ClassDB::bind_method(D_METHOD("get_default_color"), &Line2D::get_default_color); ClassDB::bind_method(D_METHOD("set_gradient", "color"), &Line2D::set_gradient); ClassDB::bind_method(D_METHOD("get_gradient"), &Line2D::get_gradient); ClassDB::bind_method(D_METHOD("set_texture", "texture"), &Line2D::set_texture); ClassDB::bind_method(D_METHOD("get_texture"), &Line2D::get_texture); ClassDB::bind_method(D_METHOD("set_texture_mode", "mode"), &Line2D::set_texture_mode); ClassDB::bind_method(D_METHOD("get_texture_mode"), &Line2D::get_texture_mode); ClassDB::bind_method(D_METHOD("set_joint_mode", "mode"), &Line2D::set_joint_mode); ClassDB::bind_method(D_METHOD("get_joint_mode"), &Line2D::get_joint_mode); ClassDB::bind_method(D_METHOD("set_begin_cap_mode", "mode"), &Line2D::set_begin_cap_mode); ClassDB::bind_method(D_METHOD("get_begin_cap_mode"), &Line2D::get_begin_cap_mode); ClassDB::bind_method(D_METHOD("set_end_cap_mode", "mode"), &Line2D::set_end_cap_mode); ClassDB::bind_method(D_METHOD("get_end_cap_mode"), &Line2D::get_end_cap_mode); ClassDB::bind_method(D_METHOD("set_sharp_limit", "limit"), &Line2D::set_sharp_limit); ClassDB::bind_method(D_METHOD("get_sharp_limit"), &Line2D::get_sharp_limit); ClassDB::bind_method(D_METHOD("set_round_precision", "precision"), &Line2D::set_round_precision); ClassDB::bind_method(D_METHOD("get_round_precision"), &Line2D::get_round_precision); ClassDB::bind_method(D_METHOD("set_antialiased", "antialiased"), &Line2D::set_antialiased); ClassDB::bind_method(D_METHOD("get_antialiased"), &Line2D::get_antialiased); ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR2_ARRAY, "points"), "set_points", "get_points"); ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "width", PROPERTY_HINT_NONE, "suffix:px"), "set_width", "get_width"); ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "width_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_curve", "get_curve"); ADD_PROPERTY(PropertyInfo(Variant::COLOR, "default_color"), "set_default_color", "get_default_color"); ADD_GROUP("Fill", ""); ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "gradient", PROPERTY_HINT_RESOURCE_TYPE, "Gradient"), "set_gradient", "get_gradient"); ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), "set_texture", "get_texture"); ADD_PROPERTY(PropertyInfo(Variant::INT, "texture_mode", PROPERTY_HINT_ENUM, "None,Tile,Stretch"), "set_texture_mode", "get_texture_mode"); ADD_GROUP("Capping", ""); ADD_PROPERTY(PropertyInfo(Variant::INT, "joint_mode", PROPERTY_HINT_ENUM, "Sharp,Bevel,Round"), "set_joint_mode", "get_joint_mode"); ADD_PROPERTY(PropertyInfo(Variant::INT, "begin_cap_mode", PROPERTY_HINT_ENUM, "None,Box,Round"), "set_begin_cap_mode", "get_begin_cap_mode"); ADD_PROPERTY(PropertyInfo(Variant::INT, "end_cap_mode", PROPERTY_HINT_ENUM, "None,Box,Round"), "set_end_cap_mode", "get_end_cap_mode"); ADD_GROUP("Border", ""); ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sharp_limit"), "set_sharp_limit", "get_sharp_limit"); ADD_PROPERTY(PropertyInfo(Variant::INT, "round_precision", PROPERTY_HINT_RANGE, "1,32,1"), "set_round_precision", "get_round_precision"); ADD_PROPERTY(PropertyInfo(Variant::BOOL, "antialiased"), "set_antialiased", "get_antialiased"); BIND_ENUM_CONSTANT(LINE_JOINT_SHARP); BIND_ENUM_CONSTANT(LINE_JOINT_BEVEL); BIND_ENUM_CONSTANT(LINE_JOINT_ROUND); BIND_ENUM_CONSTANT(LINE_CAP_NONE); BIND_ENUM_CONSTANT(LINE_CAP_BOX); BIND_ENUM_CONSTANT(LINE_CAP_ROUND); BIND_ENUM_CONSTANT(LINE_TEXTURE_NONE); BIND_ENUM_CONSTANT(LINE_TEXTURE_TILE); BIND_ENUM_CONSTANT(LINE_TEXTURE_STRETCH); }