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godot/tools/editor/plugins/navigation_polygon_editor_plugin.cpp
Juan Linietsky 118eed485e ObjectTypeDB was renamed to ClassDB. Types are meant to be more generic to Variant. 
All usages of "type" to refer to classes were renamed to "class"
ClassDB has been exposed to GDScript.
OBJ_TYPE() macro is now GDCLASS()
2017-01-02 23:03:46 -03:00

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/*************************************************************************/
/* navigation_polygon_editor_plugin.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 "navigation_polygon_editor_plugin.h"
#include "canvas_item_editor_plugin.h"
#include "os/file_access.h"
#include "tools/editor/editor_settings.h"
void NavigationPolygonEditor::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_READY: {
button_create->set_icon( get_icon("Edit","EditorIcons"));
button_edit->set_icon( get_icon("MovePoint","EditorIcons"));
button_edit->set_pressed(true);
get_tree()->connect("node_removed",this,"_node_removed");
create_nav->connect("confirmed",this,"_create_nav");
} break;
case NOTIFICATION_FIXED_PROCESS: {
} break;
}
}
void NavigationPolygonEditor::_node_removed(Node *p_node) {
if(p_node==node) {
node=NULL;
hide();
canvas_item_editor->get_viewport_control()->update();
}
}
void NavigationPolygonEditor::_create_nav() {
if (!node)
return;
undo_redo->create_action(TTR("Create Navigation Polygon"));
undo_redo->add_do_method(node,"set_navigation_polygon",Ref<NavigationPolygon>(memnew( NavigationPolygon)));
undo_redo->add_undo_method(node,"set_navigation_polygon",Variant(REF()));
undo_redo->commit_action();
}
void NavigationPolygonEditor::_menu_option(int p_option) {
switch(p_option) {
case MODE_CREATE: {
mode=MODE_CREATE;
button_create->set_pressed(true);
button_edit->set_pressed(false);
} break;
case MODE_EDIT: {
mode=MODE_EDIT;
button_create->set_pressed(false);
button_edit->set_pressed(true);
} break;
}
}
void NavigationPolygonEditor::_wip_close() {
if (wip.size()>=3) {
undo_redo->create_action(TTR("Create Poly"));
undo_redo->add_undo_method(node->get_navigation_polygon().ptr(),"remove_outline",node->get_navigation_polygon()->get_outline_count());
undo_redo->add_do_method(node->get_navigation_polygon().ptr(),"add_outline",wip);
undo_redo->add_do_method(node->get_navigation_polygon().ptr(),"make_polygons_from_outlines");
undo_redo->add_undo_method(node->get_navigation_polygon().ptr(),"make_polygons_from_outlines");
undo_redo->add_do_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->commit_action();
mode=MODE_EDIT;
button_edit->set_pressed(true);
button_create->set_pressed(false);
}
wip.clear();
wip_active=false;
edited_point=-1;
}
bool NavigationPolygonEditor::forward_input_event(const InputEvent& p_event) {
if (!node)
return false;
if (node->get_navigation_polygon().is_null()) {
if (p_event.type==InputEvent::MOUSE_BUTTON && p_event.mouse_button.button_index==1 && p_event.mouse_button.pressed) {
create_nav->set_text("No NavigationPolygon resource on this node.\nCreate and assign one?");
create_nav->popup_centered_minsize();
}
return (p_event.type==InputEvent::MOUSE_BUTTON && p_event.mouse_button.button_index==1);;
}
switch(p_event.type) {
case InputEvent::MOUSE_BUTTON: {
const InputEventMouseButton &mb=p_event.mouse_button;
Matrix32 xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
Vector2 gpoint = Point2(mb.x,mb.y);
Vector2 cpoint = canvas_item_editor->get_canvas_transform().affine_inverse().xform(gpoint);
cpoint=canvas_item_editor->snap_point(cpoint);
cpoint = node->get_global_transform().affine_inverse().xform(cpoint);
//first check if a point is to be added (segment split)
real_t grab_treshold=EDITOR_DEF("poly_editor/point_grab_radius",8);
switch(mode) {
case MODE_CREATE: {
if (mb.button_index==BUTTON_LEFT && mb.pressed) {
if (!wip_active) {
wip.clear();
wip.push_back( cpoint );
wip_active=true;
edited_point_pos=cpoint;
edited_outline=-1;
canvas_item_editor->get_viewport_control()->update();
edited_point=1;
return true;
} else {
if (wip.size()>1 && xform.xform(wip[0]).distance_to(gpoint)<grab_treshold) {
//wip closed
_wip_close();
return true;
} else {
wip.push_back( cpoint );
edited_point=wip.size();
canvas_item_editor->get_viewport_control()->update();
return true;
//add wip point
}
}
} else if (mb.button_index==BUTTON_RIGHT && mb.pressed && wip_active) {
_wip_close();
}
} break;
case MODE_EDIT: {
if (mb.button_index==BUTTON_LEFT) {
if (mb.pressed) {
if (mb.mod.control) {
//search edges
int closest_outline=-1;
int closest_idx=-1;
Vector2 closest_pos;
real_t closest_dist=1e10;
for(int j=0;j<node->get_navigation_polygon()->get_outline_count();j++) {
DVector<Vector2> points=node->get_navigation_polygon()->get_outline(j);
int pc=points.size();
DVector<Vector2>::Read poly=points.read();
for(int i=0;i<pc;i++) {
Vector2 points[2] ={ xform.xform(poly[i]),
xform.xform(poly[(i+1)%pc]) };
Vector2 cp = Geometry::get_closest_point_to_segment_2d(gpoint,points);
if (cp.distance_squared_to(points[0])<CMP_EPSILON2 || cp.distance_squared_to(points[1])<CMP_EPSILON2)
continue; //not valid to reuse point
real_t d = cp.distance_to(gpoint);
if (d<closest_dist && d<grab_treshold) {
closest_dist=d;
closest_outline=j;
closest_pos=cp;
closest_idx=i;
}
}
}
if (closest_idx>=0) {
pre_move_edit=node->get_navigation_polygon()->get_outline(closest_outline);
DVector<Point2> poly = pre_move_edit;
poly.insert(closest_idx+1,xform.affine_inverse().xform(closest_pos));
edited_point=closest_idx+1;
edited_outline=closest_outline;
edited_point_pos=xform.affine_inverse().xform(closest_pos);
node->get_navigation_polygon()->set_outline(closest_outline,poly);
canvas_item_editor->get_viewport_control()->update();
return true;
}
} else {
//look for points to move
int closest_outline=-1;
int closest_idx=-1;
Vector2 closest_pos;
real_t closest_dist=1e10;
for(int j=0;j<node->get_navigation_polygon()->get_outline_count();j++) {
DVector<Vector2> points=node->get_navigation_polygon()->get_outline(j);
int pc=points.size();
DVector<Vector2>::Read poly=points.read();
for(int i=0;i<pc;i++) {
Vector2 cp =xform.xform(poly[i]);
real_t d = cp.distance_to(gpoint);
if (d<closest_dist && d<grab_treshold) {
closest_dist=d;
closest_pos=cp;
closest_outline=j;
closest_idx=i;
}
}
}
if (closest_idx>=0) {
pre_move_edit=node->get_navigation_polygon()->get_outline(closest_outline);
edited_point=closest_idx;
edited_outline=closest_outline;
edited_point_pos=xform.affine_inverse().xform(closest_pos);
canvas_item_editor->get_viewport_control()->update();
return true;
}
}
} else {
if (edited_point!=-1) {
//apply
DVector<Vector2> poly = node->get_navigation_polygon()->get_outline(edited_outline);
ERR_FAIL_INDEX_V(edited_point,poly.size(),false);
poly.set(edited_point,edited_point_pos);
undo_redo->create_action(TTR("Edit Poly"));
undo_redo->add_do_method(node->get_navigation_polygon().ptr(),"set_outline",edited_outline,poly);
undo_redo->add_undo_method(node->get_navigation_polygon().ptr(),"set_outline",edited_outline,pre_move_edit);
undo_redo->add_do_method(node->get_navigation_polygon().ptr(),"make_polygons_from_outlines");
undo_redo->add_undo_method(node->get_navigation_polygon().ptr(),"make_polygons_from_outlines");
undo_redo->add_do_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->commit_action();
edited_point=-1;
return true;
}
}
} if (mb.button_index==BUTTON_RIGHT && mb.pressed && edited_point==-1) {
int closest_outline=-1;
int closest_idx=-1;
Vector2 closest_pos;
real_t closest_dist=1e10;
for(int j=0;j<node->get_navigation_polygon()->get_outline_count();j++) {
DVector<Vector2> points=node->get_navigation_polygon()->get_outline(j);
int pc=points.size();
DVector<Vector2>::Read poly=points.read();
for(int i=0;i<pc;i++) {
Vector2 cp =xform.xform(poly[i]);
real_t d = cp.distance_to(gpoint);
if (d<closest_dist && d<grab_treshold) {
closest_dist=d;
closest_pos=cp;
closest_outline=j;
closest_idx=i;
}
}
}
if (closest_idx>=0) {
DVector<Vector2> poly = node->get_navigation_polygon()->get_outline(closest_outline);
if (poly.size()>3) {
undo_redo->create_action(TTR("Edit Poly (Remove Point)"));
undo_redo->add_undo_method(node->get_navigation_polygon().ptr(),"set_outline",closest_outline,poly);
poly.remove(closest_idx);
undo_redo->add_do_method(node->get_navigation_polygon().ptr(),"set_outline",closest_outline,poly);
undo_redo->add_do_method(node->get_navigation_polygon().ptr(),"make_polygons_from_outlines");
undo_redo->add_undo_method(node->get_navigation_polygon().ptr(),"make_polygons_from_outlines");
undo_redo->add_do_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->commit_action();
} else {
undo_redo->create_action(TTR("Remove Poly And Point"));
undo_redo->add_undo_method(node->get_navigation_polygon().ptr(),"add_outline_at_index",poly,closest_outline);
poly.remove(closest_idx);
undo_redo->add_do_method(node->get_navigation_polygon().ptr(),"remove_outline",closest_outline);
undo_redo->add_do_method(node->get_navigation_polygon().ptr(),"make_polygons_from_outlines");
undo_redo->add_undo_method(node->get_navigation_polygon().ptr(),"make_polygons_from_outlines");
undo_redo->add_do_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->commit_action();
}
return true;
}
}
} break;
}
} break;
case InputEvent::MOUSE_MOTION: {
const InputEventMouseMotion &mm=p_event.mouse_motion;
if (edited_point!=-1 && (wip_active || mm.button_mask&BUTTON_MASK_LEFT)) {
Vector2 gpoint = Point2(mm.x,mm.y);
Vector2 cpoint = canvas_item_editor->get_canvas_transform().affine_inverse().xform(gpoint);
cpoint=canvas_item_editor->snap_point(cpoint);
edited_point_pos = node->get_global_transform().affine_inverse().xform(cpoint);
canvas_item_editor->get_viewport_control()->update();
}
} break;
}
return false;
}
void NavigationPolygonEditor::_canvas_draw() {
if (!node)
return;
Control *vpc = canvas_item_editor->get_viewport_control();
if (node->get_navigation_polygon().is_null())
return;
Matrix32 xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
Ref<Texture> handle= get_icon("EditorHandle","EditorIcons");
for(int j=-1;j<node->get_navigation_polygon()->get_outline_count();j++) {
Vector<Vector2> poly;
if (wip_active && j==edited_outline) {
poly=wip;
} else {
if (j==-1)
continue;
poly = Variant(node->get_navigation_polygon()->get_outline(j));
}
for(int i=0;i<poly.size();i++) {
Vector2 p,p2;
p = (j==edited_outline && i==edited_point) ? edited_point_pos : poly[i];
if (j==edited_outline && ((wip_active && i==poly.size()-1) || (((i+1)%poly.size())==edited_point)))
p2=edited_point_pos;
else
p2 = poly[(i+1)%poly.size()];
Vector2 point = xform.xform(p);
Vector2 next_point = xform.xform(p2);
Color col=Color(1,0.3,0.1,0.8);
vpc->draw_line(point,next_point,col,2);
vpc->draw_texture(handle,point-handle->get_size()*0.5);
}
}
}
void NavigationPolygonEditor::edit(Node *p_collision_polygon) {
if (!canvas_item_editor) {
canvas_item_editor=CanvasItemEditor::get_singleton();
}
if (p_collision_polygon) {
node=p_collision_polygon->cast_to<NavigationPolygonInstance>();
if (!canvas_item_editor->get_viewport_control()->is_connected("draw",this,"_canvas_draw"))
canvas_item_editor->get_viewport_control()->connect("draw",this,"_canvas_draw");
wip.clear();
wip_active=false;
edited_point=-1;
canvas_item_editor->get_viewport_control()->update();
} else {
node=NULL;
if (canvas_item_editor->get_viewport_control()->is_connected("draw",this,"_canvas_draw"))
canvas_item_editor->get_viewport_control()->disconnect("draw",this,"_canvas_draw");
}
}
void NavigationPolygonEditor::_bind_methods() {
ClassDB::bind_method(_MD("_menu_option"),&NavigationPolygonEditor::_menu_option);
ClassDB::bind_method(_MD("_canvas_draw"),&NavigationPolygonEditor::_canvas_draw);
ClassDB::bind_method(_MD("_node_removed"),&NavigationPolygonEditor::_node_removed);
ClassDB::bind_method(_MD("_create_nav"),&NavigationPolygonEditor::_create_nav);
}
NavigationPolygonEditor::NavigationPolygonEditor(EditorNode *p_editor) {
node=NULL;
canvas_item_editor=NULL;
editor=p_editor;
undo_redo = editor->get_undo_redo();
add_child( memnew( VSeparator ));
button_create = memnew( ToolButton );
add_child(button_create);
button_create->connect("pressed",this,"_menu_option",varray(MODE_CREATE));
button_create->set_toggle_mode(true);
button_create->set_tooltip(TTR("Create a new polygon from scratch."));
button_edit = memnew( ToolButton );
add_child(button_edit);
button_edit->connect("pressed",this,"_menu_option",varray(MODE_EDIT));
button_edit->set_toggle_mode(true);
button_edit->set_tooltip(TTR("Edit existing polygon:")+"\n"+TTR("LMB: Move Point.")+"\n"+TTR("Ctrl+LMB: Split Segment.")+"\n"+TTR("RMB: Erase Point."));
create_nav = memnew( ConfirmationDialog );
add_child(create_nav);
create_nav->get_ok()->set_text(TTR("Create"));
//add_constant_override("separation",0);
#if 0
options = memnew( MenuButton );
add_child(options);
options->set_area_as_parent_rect();
options->set_text("Polygon");
//options->get_popup()->add_item("Parse BBCode",PARSE_BBCODE);
options->get_popup()->connect("item_pressed", this,"_menu_option");
#endif
mode = MODE_EDIT;
wip_active=false;
edited_outline=-1;
}
void NavigationPolygonEditorPlugin::edit(Object *p_object) {
collision_polygon_editor->edit(p_object->cast_to<Node>());
}
bool NavigationPolygonEditorPlugin::handles(Object *p_object) const {
return p_object->is_class("NavigationPolygonInstance");
}
void NavigationPolygonEditorPlugin::make_visible(bool p_visible) {
if (p_visible) {
collision_polygon_editor->show();
} else {
collision_polygon_editor->hide();
collision_polygon_editor->edit(NULL);
}
}
NavigationPolygonEditorPlugin::NavigationPolygonEditorPlugin(EditorNode *p_node) {
editor=p_node;
collision_polygon_editor = memnew( NavigationPolygonEditor(p_node) );
CanvasItemEditor::get_singleton()->add_control_to_menu_panel(collision_polygon_editor);
collision_polygon_editor->hide();
}
NavigationPolygonEditorPlugin::~NavigationPolygonEditorPlugin()
{
}
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