godot/scene/2d/polygon_2d.cpp
Rémi Verschelde d8223ffa75 Welcome in 2017, dear changelog reader!
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!

(cherry picked from commit c7bc44d5ad)
2017-01-12 19:15:30 +01:00

398 lines
11 KiB
C++

/*************************************************************************/
/* polygon_2d.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 "polygon_2d.h"
Rect2 Polygon2D::get_item_rect() const {
if (rect_cache_dirty){
int l =polygon.size();
DVector<Vector2>::Read r = polygon.read();
item_rect=Rect2();
for(int i=0;i<l;i++) {
Vector2 pos = r[i] + offset;
if (i==0)
item_rect.pos=pos;
else
item_rect.expand_to(pos);
}
item_rect=item_rect.grow(20);
rect_cache_dirty=false;
}
return item_rect;
}
void Polygon2D::edit_set_pivot(const Point2& p_pivot) {
set_offset(p_pivot);
}
Point2 Polygon2D::edit_get_pivot() const {
return get_offset();
}
bool Polygon2D::edit_has_pivot() const {
return true;
}
void Polygon2D::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_DRAW: {
if (polygon.size()<3)
return;
Vector<Vector2> points;
Vector<Vector2> uvs;
points.resize(polygon.size());
int len = points.size();
{
DVector<Vector2>::Read polyr =polygon.read();
for(int i=0;i<len;i++) {
points[i]=polyr[i]+offset;
}
}
if (invert) {
Rect2 bounds;
int highest_idx=-1;
float highest_y=-1e20;
float sum=0;
for(int i=0;i<len;i++) {
if (i==0)
bounds.pos=points[i];
else
bounds.expand_to(points[i]);
if (points[i].y>highest_y) {
highest_idx=i;
highest_y=points[i].y;
}
int ni=(i+1)%len;
sum+=(points[ni].x-points[i].x)*(points[ni].y+points[i].y);
}
bounds=bounds.grow(invert_border);
Vector2 ep[7]={
Vector2(points[highest_idx].x,points[highest_idx].y+invert_border),
Vector2(bounds.pos+bounds.size),
Vector2(bounds.pos+Vector2(bounds.size.x,0)),
Vector2(bounds.pos),
Vector2(bounds.pos+Vector2(0,bounds.size.y)),
Vector2(points[highest_idx].x-CMP_EPSILON,points[highest_idx].y+invert_border),
Vector2(points[highest_idx].x-CMP_EPSILON,points[highest_idx].y),
};
if (sum>0) {
SWAP(ep[1],ep[4]);
SWAP(ep[2],ep[3]);
SWAP(ep[5],ep[0]);
SWAP(ep[6],points[highest_idx]);
}
points.resize(points.size()+7);
for(int i=points.size()-1;i>=highest_idx+7;i--) {
points[i]=points[i-7];
}
for(int i=0;i<7;i++) {
points[highest_idx+i+1]=ep[i];
}
len=points.size();
}
if (texture.is_valid()) {
Matrix32 texmat(tex_rot,tex_ofs);
texmat.scale(tex_scale);
Size2 tex_size=Vector2(1,1);
tex_size=texture->get_size();
uvs.resize(points.size());
if (points.size()==uv.size()) {
DVector<Vector2>::Read uvr = uv.read();
for(int i=0;i<len;i++) {
uvs[i]=texmat.xform(uvr[i])/tex_size;
}
} else {
for(int i=0;i<len;i++) {
uvs[i]=texmat.xform(points[i])/tex_size;
}
}
}
Vector<Color> colors;
int color_len=vertex_colors.size();
colors.resize(len);
{
DVector<Color>::Read color_r=vertex_colors.read();
for(int i=0;i<color_len && i<len;i++){
colors[i]=color_r[i];
}
for(int i=color_len;i<len;i++){
colors[i]=color;
}
}
Vector<int> indices = Geometry::triangulate_polygon(points);
VS::get_singleton()->canvas_item_add_triangle_array(get_canvas_item(),indices,points,colors,uvs,texture.is_valid()?texture->get_rid():RID());
} break;
}
}
void Polygon2D::set_polygon(const DVector<Vector2>& p_polygon) {
polygon=p_polygon;
rect_cache_dirty=true;
update();
}
DVector<Vector2> Polygon2D::get_polygon() const{
return polygon;
}
void Polygon2D::set_uv(const DVector<Vector2>& p_uv) {
uv=p_uv;
update();
}
DVector<Vector2> Polygon2D::get_uv() const{
return uv;
}
void Polygon2D::set_color(const Color& p_color){
color=p_color;
update();
}
Color Polygon2D::get_color() const{
return color;
}
void Polygon2D::set_vertex_colors(const DVector<Color>& p_colors){
vertex_colors=p_colors;
update();
}
DVector<Color> Polygon2D::get_vertex_colors() const{
return vertex_colors;
}
void Polygon2D::set_texture(const Ref<Texture>& p_texture){
texture=p_texture;
/*if (texture.is_valid()) {
uint32_t flags=texture->get_flags();
flags&=~Texture::FLAG_REPEAT;
if (tex_tile)
flags|=Texture::FLAG_REPEAT;
texture->set_flags(flags);
}*/
update();
}
Ref<Texture> Polygon2D::get_texture() const{
return texture;
}
void Polygon2D::set_texture_offset(const Vector2& p_offset){
tex_ofs=p_offset;
update();
}
Vector2 Polygon2D::get_texture_offset() const{
return tex_ofs;
}
void Polygon2D::set_texture_rotation(float p_rot){
tex_rot=p_rot;
update();
}
float Polygon2D::get_texture_rotation() const{
return tex_rot;
}
void Polygon2D::_set_texture_rotationd(float p_rot){
set_texture_rotation(Math::deg2rad(p_rot));
}
float Polygon2D::_get_texture_rotationd() const{
return Math::rad2deg(get_texture_rotation());
}
void Polygon2D::set_texture_scale(const Size2& p_scale){
tex_scale=p_scale;
update();
}
Size2 Polygon2D::get_texture_scale() const{
return tex_scale;
}
void Polygon2D::set_invert(bool p_invert){
invert=p_invert;
update();
}
bool Polygon2D::get_invert() const{
return invert;
}
void Polygon2D::set_invert_border(float p_invert_border){
invert_border=p_invert_border;
update();
}
float Polygon2D::get_invert_border() const{
return invert_border;
}
void Polygon2D::set_offset(const Vector2& p_offset) {
offset=p_offset;
rect_cache_dirty=true;
update();
}
Vector2 Polygon2D::get_offset() const {
return offset;
}
void Polygon2D::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_polygon","polygon"),&Polygon2D::set_polygon);
ObjectTypeDB::bind_method(_MD("get_polygon"),&Polygon2D::get_polygon);
ObjectTypeDB::bind_method(_MD("set_uv","uv"),&Polygon2D::set_uv);
ObjectTypeDB::bind_method(_MD("get_uv"),&Polygon2D::get_uv);
ObjectTypeDB::bind_method(_MD("set_color","color"),&Polygon2D::set_color);
ObjectTypeDB::bind_method(_MD("get_color"),&Polygon2D::get_color);
ObjectTypeDB::bind_method(_MD("set_vertex_colors","vertex_colors"),&Polygon2D::set_vertex_colors);
ObjectTypeDB::bind_method(_MD("get_vertex_colors"),&Polygon2D::get_vertex_colors);
ObjectTypeDB::bind_method(_MD("set_texture","texture"),&Polygon2D::set_texture);
ObjectTypeDB::bind_method(_MD("get_texture"),&Polygon2D::get_texture);
ObjectTypeDB::bind_method(_MD("set_texture_offset","texture_offset"),&Polygon2D::set_texture_offset);
ObjectTypeDB::bind_method(_MD("get_texture_offset"),&Polygon2D::get_texture_offset);
ObjectTypeDB::bind_method(_MD("set_texture_rotation","texture_rotation"),&Polygon2D::set_texture_rotation);
ObjectTypeDB::bind_method(_MD("get_texture_rotation"),&Polygon2D::get_texture_rotation);
ObjectTypeDB::bind_method(_MD("_set_texture_rotationd","texture_rotation"),&Polygon2D::_set_texture_rotationd);
ObjectTypeDB::bind_method(_MD("_get_texture_rotationd"),&Polygon2D::_get_texture_rotationd);
ObjectTypeDB::bind_method(_MD("set_texture_scale","texture_scale"),&Polygon2D::set_texture_scale);
ObjectTypeDB::bind_method(_MD("get_texture_scale"),&Polygon2D::get_texture_scale);
ObjectTypeDB::bind_method(_MD("set_invert","invert"),&Polygon2D::set_invert);
ObjectTypeDB::bind_method(_MD("get_invert"),&Polygon2D::get_invert);
ObjectTypeDB::bind_method(_MD("set_invert_border","invert_border"),&Polygon2D::set_invert_border);
ObjectTypeDB::bind_method(_MD("get_invert_border"),&Polygon2D::get_invert_border);
ObjectTypeDB::bind_method(_MD("set_offset","offset"),&Polygon2D::set_offset);
ObjectTypeDB::bind_method(_MD("get_offset"),&Polygon2D::get_offset);
ADD_PROPERTY( PropertyInfo(Variant::VECTOR2_ARRAY,"polygon"),_SCS("set_polygon"),_SCS("get_polygon"));
ADD_PROPERTY( PropertyInfo(Variant::VECTOR2_ARRAY,"uv"),_SCS("set_uv"),_SCS("get_uv"));
ADD_PROPERTY( PropertyInfo(Variant::COLOR,"color"),_SCS("set_color"),_SCS("get_color"));
ADD_PROPERTY( PropertyInfo(Variant::COLOR_ARRAY,"vertex_colors"),_SCS("set_vertex_colors"),_SCS("get_vertex_colors"));
ADD_PROPERTY( PropertyInfo(Variant::VECTOR2,"offset"),_SCS("set_offset"),_SCS("get_offset"));
ADD_PROPERTY( PropertyInfo(Variant::OBJECT,"texture/texture",PROPERTY_HINT_RESOURCE_TYPE,"Texture"),_SCS("set_texture"),_SCS("get_texture"));
ADD_PROPERTY( PropertyInfo(Variant::VECTOR2,"texture/offset"),_SCS("set_texture_offset"),_SCS("get_texture_offset"));
ADD_PROPERTY( PropertyInfo(Variant::VECTOR2,"texture/scale"),_SCS("set_texture_scale"),_SCS("get_texture_scale"));
ADD_PROPERTY( PropertyInfo(Variant::REAL,"texture/rotation",PROPERTY_HINT_RANGE,"-1440,1440,0.1"),_SCS("_set_texture_rotationd"),_SCS("_get_texture_rotationd"));
ADD_PROPERTY( PropertyInfo(Variant::BOOL,"invert/enable"),_SCS("set_invert"),_SCS("get_invert"));
ADD_PROPERTY( PropertyInfo(Variant::REAL,"invert/border",PROPERTY_HINT_RANGE,"0.1,16384,0.1"),_SCS("set_invert_border"),_SCS("get_invert_border"));
}
Polygon2D::Polygon2D() {
invert=0;
invert_border=100;
tex_rot=0;
tex_tile=true;
tex_scale=Vector2(1,1);
color=Color(1,1,1);
rect_cache_dirty=true;
}