mirror of
https://github.com/godotengine/godot
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402 lines
12 KiB
C++
402 lines
12 KiB
C++
/*************************************************************************/
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/* polygon_2d.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "polygon_2d.h"
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#include "core/math/geometry.h"
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Rect2 Polygon2D::_edit_get_rect() const {
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if (rect_cache_dirty) {
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int l = polygon.size();
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PoolVector<Vector2>::Read r = polygon.read();
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item_rect = Rect2();
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for (int i = 0; i < l; i++) {
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Vector2 pos = r[i] + offset;
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if (i == 0)
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item_rect.position = pos;
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else
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item_rect.expand_to(pos);
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}
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rect_cache_dirty = false;
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}
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return item_rect;
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}
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bool Polygon2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
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return Geometry::is_point_in_polygon(p_point, Variant(polygon));
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}
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void Polygon2D::_edit_set_pivot(const Point2 &p_pivot) {
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set_offset(p_pivot);
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}
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Point2 Polygon2D::_edit_get_pivot() const {
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return get_offset();
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}
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bool Polygon2D::_edit_use_pivot() const {
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return true;
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}
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void Polygon2D::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_DRAW: {
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if (polygon.size() < 3)
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return;
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Vector<Vector2> points;
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Vector<Vector2> uvs;
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points.resize(polygon.size());
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int len = points.size();
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{
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PoolVector<Vector2>::Read polyr = polygon.read();
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for (int i = 0; i < len; i++) {
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points[i] = polyr[i] + offset;
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}
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}
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if (invert) {
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Rect2 bounds;
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int highest_idx = -1;
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float highest_y = -1e20;
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float sum = 0;
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for (int i = 0; i < len; i++) {
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if (i == 0)
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bounds.position = points[i];
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else
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bounds.expand_to(points[i]);
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if (points[i].y > highest_y) {
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highest_idx = i;
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highest_y = points[i].y;
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}
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int ni = (i + 1) % len;
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sum += (points[ni].x - points[i].x) * (points[ni].y + points[i].y);
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}
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bounds = bounds.grow(invert_border);
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Vector2 ep[7] = {
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Vector2(points[highest_idx].x, points[highest_idx].y + invert_border),
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Vector2(bounds.position + bounds.size),
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Vector2(bounds.position + Vector2(bounds.size.x, 0)),
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Vector2(bounds.position),
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Vector2(bounds.position + Vector2(0, bounds.size.y)),
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Vector2(points[highest_idx].x - CMP_EPSILON, points[highest_idx].y + invert_border),
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Vector2(points[highest_idx].x - CMP_EPSILON, points[highest_idx].y),
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};
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if (sum > 0) {
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SWAP(ep[1], ep[4]);
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SWAP(ep[2], ep[3]);
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SWAP(ep[5], ep[0]);
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SWAP(ep[6], points[highest_idx]);
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}
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points.resize(points.size() + 7);
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for (int i = points.size() - 1; i >= highest_idx + 7; i--) {
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points[i] = points[i - 7];
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}
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for (int i = 0; i < 7; i++) {
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points[highest_idx + i + 1] = ep[i];
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}
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len = points.size();
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}
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if (texture.is_valid()) {
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Transform2D texmat(tex_rot, tex_ofs);
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texmat.scale(tex_scale);
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Size2 tex_size = texture->get_size();
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uvs.resize(points.size());
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if (points.size() == uv.size()) {
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PoolVector<Vector2>::Read uvr = uv.read();
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for (int i = 0; i < len; i++) {
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uvs[i] = texmat.xform(uvr[i]) / tex_size;
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}
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} else {
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for (int i = 0; i < len; i++) {
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uvs[i] = texmat.xform(points[i]) / tex_size;
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}
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}
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}
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Vector<Color> colors;
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int color_len = vertex_colors.size();
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colors.resize(len);
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{
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PoolVector<Color>::Read color_r = vertex_colors.read();
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for (int i = 0; i < color_len && i < len; i++) {
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colors[i] = color_r[i];
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}
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for (int i = color_len; i < len; i++) {
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colors[i] = color;
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}
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}
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// Vector<int> indices = Geometry::triangulate_polygon(points);
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// VS::get_singleton()->canvas_item_add_triangle_array(get_canvas_item(), indices, points, colors, uvs, texture.is_valid() ? texture->get_rid() : RID());
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VS::get_singleton()->canvas_item_add_polygon(get_canvas_item(), points, colors, uvs, texture.is_valid() ? texture->get_rid() : RID(), RID(), antialiased);
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} break;
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}
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}
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void Polygon2D::set_polygon(const PoolVector<Vector2> &p_polygon) {
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polygon = p_polygon;
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rect_cache_dirty = true;
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update();
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}
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PoolVector<Vector2> Polygon2D::get_polygon() const {
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return polygon;
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}
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void Polygon2D::set_uv(const PoolVector<Vector2> &p_uv) {
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uv = p_uv;
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update();
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}
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PoolVector<Vector2> Polygon2D::get_uv() const {
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return uv;
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}
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void Polygon2D::set_color(const Color &p_color) {
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color = p_color;
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update();
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}
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Color Polygon2D::get_color() const {
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return color;
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}
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void Polygon2D::set_vertex_colors(const PoolVector<Color> &p_colors) {
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vertex_colors = p_colors;
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update();
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}
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PoolVector<Color> Polygon2D::get_vertex_colors() const {
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return vertex_colors;
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}
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void Polygon2D::set_texture(const Ref<Texture> &p_texture) {
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texture = p_texture;
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/*if (texture.is_valid()) {
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uint32_t flags=texture->get_flags();
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flags&=~Texture::FLAG_REPEAT;
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if (tex_tile)
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flags|=Texture::FLAG_REPEAT;
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texture->set_flags(flags);
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}*/
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update();
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}
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Ref<Texture> Polygon2D::get_texture() const {
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return texture;
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}
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void Polygon2D::set_texture_offset(const Vector2 &p_offset) {
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tex_ofs = p_offset;
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update();
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}
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Vector2 Polygon2D::get_texture_offset() const {
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return tex_ofs;
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}
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void Polygon2D::set_texture_rotation(float p_rot) {
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tex_rot = p_rot;
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update();
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}
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float Polygon2D::get_texture_rotation() const {
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return tex_rot;
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}
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void Polygon2D::set_texture_rotation_degrees(float p_rot) {
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set_texture_rotation(Math::deg2rad(p_rot));
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}
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float Polygon2D::get_texture_rotation_degrees() const {
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return Math::rad2deg(get_texture_rotation());
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}
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void Polygon2D::set_texture_scale(const Size2 &p_scale) {
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tex_scale = p_scale;
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update();
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}
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Size2 Polygon2D::get_texture_scale() const {
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return tex_scale;
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}
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void Polygon2D::set_invert(bool p_invert) {
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invert = p_invert;
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update();
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}
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bool Polygon2D::get_invert() const {
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return invert;
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}
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void Polygon2D::set_antialiased(bool p_antialiased) {
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antialiased = p_antialiased;
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update();
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}
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bool Polygon2D::get_antialiased() const {
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return antialiased;
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}
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void Polygon2D::set_invert_border(float p_invert_border) {
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invert_border = p_invert_border;
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update();
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}
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float Polygon2D::get_invert_border() const {
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return invert_border;
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}
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void Polygon2D::set_offset(const Vector2 &p_offset) {
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offset = p_offset;
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rect_cache_dirty = true;
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update();
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}
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Vector2 Polygon2D::get_offset() const {
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return offset;
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}
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void Polygon2D::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_polygon", "polygon"), &Polygon2D::set_polygon);
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ClassDB::bind_method(D_METHOD("get_polygon"), &Polygon2D::get_polygon);
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ClassDB::bind_method(D_METHOD("set_uv", "uv"), &Polygon2D::set_uv);
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ClassDB::bind_method(D_METHOD("get_uv"), &Polygon2D::get_uv);
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ClassDB::bind_method(D_METHOD("set_color", "color"), &Polygon2D::set_color);
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ClassDB::bind_method(D_METHOD("get_color"), &Polygon2D::get_color);
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ClassDB::bind_method(D_METHOD("set_vertex_colors", "vertex_colors"), &Polygon2D::set_vertex_colors);
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ClassDB::bind_method(D_METHOD("get_vertex_colors"), &Polygon2D::get_vertex_colors);
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ClassDB::bind_method(D_METHOD("set_texture", "texture"), &Polygon2D::set_texture);
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ClassDB::bind_method(D_METHOD("get_texture"), &Polygon2D::get_texture);
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ClassDB::bind_method(D_METHOD("set_texture_offset", "texture_offset"), &Polygon2D::set_texture_offset);
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ClassDB::bind_method(D_METHOD("get_texture_offset"), &Polygon2D::get_texture_offset);
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ClassDB::bind_method(D_METHOD("set_texture_rotation", "texture_rotation"), &Polygon2D::set_texture_rotation);
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ClassDB::bind_method(D_METHOD("get_texture_rotation"), &Polygon2D::get_texture_rotation);
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ClassDB::bind_method(D_METHOD("set_texture_rotation_degrees", "texture_rotation"), &Polygon2D::set_texture_rotation_degrees);
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ClassDB::bind_method(D_METHOD("get_texture_rotation_degrees"), &Polygon2D::get_texture_rotation_degrees);
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ClassDB::bind_method(D_METHOD("set_texture_scale", "texture_scale"), &Polygon2D::set_texture_scale);
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ClassDB::bind_method(D_METHOD("get_texture_scale"), &Polygon2D::get_texture_scale);
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ClassDB::bind_method(D_METHOD("set_invert", "invert"), &Polygon2D::set_invert);
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ClassDB::bind_method(D_METHOD("get_invert"), &Polygon2D::get_invert);
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ClassDB::bind_method(D_METHOD("set_antialiased", "antialiased"), &Polygon2D::set_antialiased);
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ClassDB::bind_method(D_METHOD("get_antialiased"), &Polygon2D::get_antialiased);
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ClassDB::bind_method(D_METHOD("set_invert_border", "invert_border"), &Polygon2D::set_invert_border);
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ClassDB::bind_method(D_METHOD("get_invert_border"), &Polygon2D::get_invert_border);
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ClassDB::bind_method(D_METHOD("set_offset", "offset"), &Polygon2D::set_offset);
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ClassDB::bind_method(D_METHOD("get_offset"), &Polygon2D::get_offset);
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ADD_PROPERTY(PropertyInfo(Variant::POOL_VECTOR2_ARRAY, "polygon"), "set_polygon", "get_polygon");
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ADD_PROPERTY(PropertyInfo(Variant::POOL_VECTOR2_ARRAY, "uv"), "set_uv", "get_uv");
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ADD_PROPERTY(PropertyInfo(Variant::COLOR, "color"), "set_color", "get_color");
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ADD_PROPERTY(PropertyInfo(Variant::POOL_COLOR_ARRAY, "vertex_colors"), "set_vertex_colors", "get_vertex_colors");
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ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "offset"), "set_offset", "get_offset");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "antialiased"), "set_antialiased", "get_antialiased");
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ADD_GROUP("Texture", "");
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), "set_texture", "get_texture");
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ADD_GROUP("Texture", "texture_");
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ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "texture_offset"), "set_texture_offset", "get_texture_offset");
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ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "texture_scale"), "set_texture_scale", "get_texture_scale");
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "texture_rotation", PROPERTY_HINT_RANGE, "-1440,1440,0.1"), "set_texture_rotation_degrees", "get_texture_rotation_degrees");
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ADD_GROUP("Invert", "invert_");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "invert_enable"), "set_invert", "get_invert");
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "invert_border", PROPERTY_HINT_RANGE, "0.1,16384,0.1"), "set_invert_border", "get_invert_border");
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}
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Polygon2D::Polygon2D() {
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invert = 0;
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invert_border = 100;
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antialiased = false;
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tex_rot = 0;
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tex_tile = true;
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tex_scale = Vector2(1, 1);
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color = Color(1, 1, 1);
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rect_cache_dirty = true;
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}
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