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virtualx-engine/tools/editor/plugins/collision_polygon_editor_plugin.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

644 lines
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/*************************************************************************/
/* collision_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 "collision_polygon_editor_plugin.h"
#include "spatial_editor_plugin.h"
#include "os/file_access.h"
#include "tools/editor/editor_settings.h"
#include "scene/3d/camera.h"
#include "canvas_item_editor_plugin.h"
void CollisionPolygonEditor::_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");
} break;
case NOTIFICATION_PROCESS: {
if (node->get_depth() != prev_depth) {
_polygon_draw();
prev_depth=node->get_depth();
}
} break;
}
}
void CollisionPolygonEditor::_node_removed(Node *p_node) {
if(p_node==node) {
node=NULL;
if (imgeom->get_parent()==p_node)
p_node->remove_child(imgeom);
hide();
set_process(false);
}
}
void CollisionPolygonEditor::_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 CollisionPolygonEditor::_wip_close() {
undo_redo->create_action(TTR("Create Poly3D"));
undo_redo->add_undo_method(node,"set_polygon",node->get_polygon());
undo_redo->add_do_method(node,"set_polygon",wip);
undo_redo->add_do_method(this,"_polygon_draw");
undo_redo->add_undo_method(this,"_polygon_draw");
wip.clear();
wip_active=false;
mode=MODE_EDIT;
button_edit->set_pressed(true);
button_create->set_pressed(false);
edited_point=-1;
undo_redo->commit_action();
}
bool CollisionPolygonEditor::forward_spatial_input_event(Camera* p_camera,const InputEvent& p_event) {
if (!node)
return false;
Transform gt = node->get_global_transform();
Transform gi = gt.affine_inverse();
float depth = node->get_depth()*0.5;
Vector3 n = gt.basis.get_axis(2).normalized();
Plane p(gt.origin+n*depth,n);
switch(p_event.type) {
case InputEvent::MOUSE_BUTTON: {
const InputEventMouseButton &mb=p_event.mouse_button;
Vector2 gpoint=Point2(mb.x,mb.y);
Vector3 ray_from = p_camera->project_ray_origin(gpoint);
Vector3 ray_dir = p_camera->project_ray_normal(gpoint);
Vector3 spoint;
if (!p.intersects_ray(ray_from,ray_dir,&spoint))
break;
spoint = gi.xform(spoint);
Vector2 cpoint(spoint.x,spoint.y);
cpoint=CanvasItemEditor::get_singleton()->snap_point(cpoint);
Vector<Vector2> poly = node->get_polygon();
//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;
_polygon_draw();
edited_point=1;
return true;
} else {
if (wip.size()>1 && p_camera->unproject_position(gt.xform(Vector3(wip[0].x,wip[0].y,depth))).distance_to(gpoint)<grab_treshold) {
//wip closed
_wip_close();
return true;
} else {
wip.push_back( cpoint );
edited_point=wip.size();
_polygon_draw();
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) {
if (poly.size() < 3) {
undo_redo->create_action(TTR("Edit Poly"));
undo_redo->add_undo_method(node,"set_polygon",poly);
poly.push_back(cpoint);
undo_redo->add_do_method(node,"set_polygon",poly);
undo_redo->add_do_method(this,"_polygon_draw");
undo_redo->add_undo_method(this,"_polygon_draw");
undo_redo->commit_action();
return true;
}
//search edges
int closest_idx=-1;
Vector2 closest_pos;
real_t closest_dist=1e10;
for(int i=0;i<poly.size();i++) {
Vector2 points[2] ={
p_camera->unproject_position(gt.xform(Vector3(poly[i].x,poly[i].y,depth))),
p_camera->unproject_position(gt.xform(Vector3(poly[(i+1)%poly.size()].x,poly[(i+1)%poly.size()].y,depth)))
};
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_pos=cp;
closest_idx=i;
}
}
if (closest_idx>=0) {
pre_move_edit=poly;
poly.insert(closest_idx+1,cpoint);
edited_point=closest_idx+1;
edited_point_pos=cpoint;
node->set_polygon(poly);
_polygon_draw();
return true;
}
} else {
//look for points to move
int closest_idx=-1;
Vector2 closest_pos;
real_t closest_dist=1e10;
for(int i=0;i<poly.size();i++) {
Vector2 cp = p_camera->unproject_position(gt.xform(Vector3(poly[i].x,poly[i].y,depth)));
real_t d = cp.distance_to(gpoint);
if (d<closest_dist && d<grab_treshold) {
closest_dist=d;
closest_pos=cp;
closest_idx=i;
}
}
if (closest_idx>=0) {
pre_move_edit=poly;
edited_point=closest_idx;
edited_point_pos=poly[closest_idx];
_polygon_draw();
return true;
}
}
} else {
if (edited_point!=-1) {
//apply
ERR_FAIL_INDEX_V(edited_point,poly.size(),false);
poly[edited_point]=edited_point_pos;
undo_redo->create_action(TTR("Edit Poly"));
undo_redo->add_do_method(node,"set_polygon",poly);
undo_redo->add_undo_method(node,"set_polygon",pre_move_edit);
undo_redo->add_do_method(this,"_polygon_draw");
undo_redo->add_undo_method(this,"_polygon_draw");
undo_redo->commit_action();
edited_point=-1;
return true;
}
}
} if (mb.button_index==BUTTON_RIGHT && mb.pressed && edited_point==-1) {
int closest_idx=-1;
Vector2 closest_pos;
real_t closest_dist=1e10;
for(int i=0;i<poly.size();i++) {
Vector2 cp = p_camera->unproject_position(gt.xform(Vector3(poly[i].x,poly[i].y,depth)));
real_t d = cp.distance_to(gpoint);
if (d<closest_dist && d<grab_treshold) {
closest_dist=d;
closest_pos=cp;
closest_idx=i;
}
}
if (closest_idx>=0) {
undo_redo->create_action(TTR("Edit Poly (Remove Point)"));
undo_redo->add_undo_method(node,"set_polygon",poly);
poly.remove(closest_idx);
undo_redo->add_do_method(node,"set_polygon",poly);
undo_redo->add_do_method(this,"_polygon_draw");
undo_redo->add_undo_method(this,"_polygon_draw");
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);
Vector3 ray_from = p_camera->project_ray_origin(gpoint);
Vector3 ray_dir = p_camera->project_ray_normal(gpoint);
Vector3 spoint;
if (!p.intersects_ray(ray_from,ray_dir,&spoint))
break;
spoint = gi.xform(spoint);
Vector2 cpoint(spoint.x,spoint.y);
cpoint=CanvasItemEditor::get_singleton()->snap_point(cpoint);
edited_point_pos = cpoint;
_polygon_draw();
}
} break;
}
return false;
}
void CollisionPolygonEditor::_polygon_draw() {
if (!node)
return;
Vector<Vector2> poly;
if (wip_active)
poly=wip;
else
poly=node->get_polygon();
float depth = node->get_depth()*0.5;
imgeom->clear();
imgeom->set_material_override(line_material);
imgeom->begin(Mesh::PRIMITIVE_LINES,Ref<Texture>());
Rect2 rect;
for(int i=0;i<poly.size();i++) {
Vector2 p,p2;
p = i==edited_point ? edited_point_pos : poly[i];
if ((wip_active && i==poly.size()-1) || (((i+1)%poly.size())==edited_point))
p2=edited_point_pos;
else
p2 = poly[(i+1)%poly.size()];
if (i==0)
rect.pos=p;
else
rect.expand_to(p);
Vector3 point = Vector3(p.x,p.y,depth);
Vector3 next_point = Vector3(p2.x,p2.y,depth);
imgeom->set_color(Color(1,0.3,0.1,0.8));
imgeom->add_vertex(point);
imgeom->set_color(Color(1,0.3,0.1,0.8));
imgeom->add_vertex(next_point);
//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);
}
rect=rect.grow(1);
AABB r;
r.pos.x=rect.pos.x;
r.pos.y=rect.pos.y;
r.pos.z=depth;
r.size.x=rect.size.x;
r.size.y=rect.size.y;
r.size.z=0;
imgeom->set_color(Color(0.8,0.8,0.8,0.2));
imgeom->add_vertex(r.pos);
imgeom->set_color(Color(0.8,0.8,0.8,0.2));
imgeom->add_vertex(r.pos+Vector3(0.3,0,0));
imgeom->set_color(Color(0.8,0.8,0.8,0.2));
imgeom->add_vertex(r.pos);
imgeom->set_color(Color(0.8,0.8,0.8,0.2));
imgeom->add_vertex(r.pos+Vector3(0.0,0.3,0));
imgeom->set_color(Color(0.8,0.8,0.8,0.2));
imgeom->add_vertex(r.pos+Vector3(r.size.x,0,0));
imgeom->set_color(Color(0.8,0.8,0.8,0.2));
imgeom->add_vertex(r.pos+Vector3(r.size.x,0,0)-Vector3(0.3,0,0));
imgeom->set_color(Color(0.8,0.8,0.8,0.2));
imgeom->add_vertex(r.pos+Vector3(r.size.x,0,0));
imgeom->set_color(Color(0.8,0.8,0.8,0.2));
imgeom->add_vertex(r.pos+Vector3(r.size.x,0,0)+Vector3(0,0.3,0));
imgeom->set_color(Color(0.8,0.8,0.8,0.2));
imgeom->add_vertex(r.pos+Vector3(0,r.size.y,0));
imgeom->set_color(Color(0.8,0.8,0.8,0.2));
imgeom->add_vertex(r.pos+Vector3(0,r.size.y,0)-Vector3(0,0.3,0));
imgeom->set_color(Color(0.8,0.8,0.8,0.2));
imgeom->add_vertex(r.pos+Vector3(0,r.size.y,0));
imgeom->set_color(Color(0.8,0.8,0.8,0.2));
imgeom->add_vertex(r.pos+Vector3(0,r.size.y,0)+Vector3(0.3,0,0));
imgeom->set_color(Color(0.8,0.8,0.8,0.2));
imgeom->add_vertex(r.pos+r.size);
imgeom->set_color(Color(0.8,0.8,0.8,0.2));
imgeom->add_vertex(r.pos+r.size-Vector3(0.3,0,0));
imgeom->set_color(Color(0.8,0.8,0.8,0.2));
imgeom->add_vertex(r.pos+r.size);
imgeom->set_color(Color(0.8,0.8,0.8,0.2));
imgeom->add_vertex(r.pos+r.size-Vector3(0.0,0.3,0));
imgeom->end();
while(m->get_surface_count()) {
m->surface_remove(0);
}
if (poly.size()==0)
return;
Array a;
a.resize(Mesh::ARRAY_MAX);
DVector<Vector3> va;
{
va.resize(poly.size());
DVector<Vector3>::Write w=va.write();
for(int i=0;i<poly.size();i++) {
Vector2 p,p2;
p = i==edited_point ? edited_point_pos : poly[i];
Vector3 point = Vector3(p.x,p.y,depth);
w[i]=point;
}
}
a[Mesh::ARRAY_VERTEX]=va;
m->add_surface(Mesh::PRIMITIVE_POINTS,a);
m->surface_set_material(0,handle_material);
}
void CollisionPolygonEditor::edit(Node *p_collision_polygon) {
if (p_collision_polygon) {
node=p_collision_polygon->cast_to<CollisionPolygon>();
wip.clear();
wip_active=false;
edited_point=-1;
p_collision_polygon->add_child(imgeom);
_polygon_draw();
set_process(true);
prev_depth=-1;
} else {
node=NULL;
if (imgeom->get_parent())
imgeom->get_parent()->remove_child(imgeom);
set_process(false);
}
}
void CollisionPolygonEditor::_bind_methods() {
ObjectTypeDB::bind_method(_MD("_menu_option"),&CollisionPolygonEditor::_menu_option);
ObjectTypeDB::bind_method(_MD("_polygon_draw"),&CollisionPolygonEditor::_polygon_draw);
ObjectTypeDB::bind_method(_MD("_node_removed"),&CollisionPolygonEditor::_node_removed);
}
CollisionPolygonEditor::CollisionPolygonEditor(EditorNode *p_editor) {
node=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_edit = memnew( ToolButton );
add_child(button_edit);
button_edit->connect("pressed",this,"_menu_option",varray(MODE_EDIT));
button_edit->set_toggle_mode(true);
//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;
imgeom = memnew( ImmediateGeometry );
imgeom->set_transform(Transform(Matrix3(),Vector3(0,0,0.00001)));
line_material = Ref<FixedMaterial>( memnew( FixedMaterial ));
line_material->set_flag(Material::FLAG_UNSHADED, true);
line_material->set_line_width(3.0);
line_material->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA, true);
line_material->set_fixed_flag(FixedMaterial::FLAG_USE_COLOR_ARRAY, true);
line_material->set_parameter(FixedMaterial::PARAM_DIFFUSE,Color(1,1,1));
handle_material = Ref<FixedMaterial>( memnew( FixedMaterial ));
handle_material->set_flag(Material::FLAG_UNSHADED, true);
handle_material->set_fixed_flag(FixedMaterial::FLAG_USE_POINT_SIZE, true);
handle_material->set_parameter(FixedMaterial::PARAM_DIFFUSE,Color(1,1,1));
handle_material->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA, true);
handle_material->set_fixed_flag(FixedMaterial::FLAG_USE_COLOR_ARRAY, false);
Ref<Texture> handle=editor->get_gui_base()->get_icon("Editor3DHandle","EditorIcons");
handle_material->set_point_size(handle->get_width());
handle_material->set_texture(FixedMaterial::PARAM_DIFFUSE,handle);
pointsm = memnew( MeshInstance );
imgeom->add_child(pointsm);
m = Ref<Mesh>( memnew( Mesh ) );
pointsm->set_mesh(m);
pointsm->set_transform(Transform(Matrix3(),Vector3(0,0,0.00001)));
}
CollisionPolygonEditor::~CollisionPolygonEditor() {
memdelete( imgeom );
}
void CollisionPolygonEditorPlugin::edit(Object *p_object) {
collision_polygon_editor->edit(p_object->cast_to<Node>());
}
bool CollisionPolygonEditorPlugin::handles(Object *p_object) const {
return p_object->is_type("CollisionPolygon");
}
void CollisionPolygonEditorPlugin::make_visible(bool p_visible) {
if (p_visible) {
collision_polygon_editor->show();
} else {
collision_polygon_editor->hide();
collision_polygon_editor->edit(NULL);
}
}
CollisionPolygonEditorPlugin::CollisionPolygonEditorPlugin(EditorNode *p_node) {
editor=p_node;
collision_polygon_editor = memnew( CollisionPolygonEditor(p_node) );
SpatialEditor::get_singleton()->add_control_to_menu_panel(collision_polygon_editor);
collision_polygon_editor->hide();
}
CollisionPolygonEditorPlugin::~CollisionPolygonEditorPlugin()
{
}
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