worldview_collider_tool.cxx

   1 //  $Id: worldview_collider_tool.cxx,v 1.4 2003/01/11 16:11:36 grumbel Exp $
   2 //
   3 //  Construo - A wire-frame construction gamee
   4 //  Copyright (C) 2002 Ingo Ruhnke <grumbel@gmx.de>
   5 //
   6 //  This program is free software; you can redistribute it and/or
   7 //  modify it under the terms of the GNU General Public License
   8 //  as published by the Free Software Foundation; either version 2
   9 //  of the License, or (at your option) any later version.
  10 //
  11 //  This program is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //  GNU General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU General Public License
  17 //  along with this program; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19
  20 #include "construo.hxx"
  21 #include "input_context.hxx"
  22 #include "controller.hxx"
  23 #include "colors.hxx"
  24 #include "world.hxx"
  25 #include "world_gui_manager.hxx"
  26 #include "worldview_component.hxx"
  27 #include "worldview_collider_tool.hxx"
  28
  29 WorldViewColliderTool::WorldViewColliderTool ()
  30 {
  31   creating_rect = false;
  32   to_delete_collider = 0;
  33   move_collider      = 0;
  34 }
  35
  36 WorldViewColliderTool::~WorldViewColliderTool ()
  37 {
  38 }
  39
  40 void
  41 WorldViewColliderTool::draw_background (ZoomGraphicContext* gc)
  42 {
  43   Vector2d mouse_pos = WorldViewComponent::instance()->get_gc()->screen_to_world(input_context->get_mouse_pos ());
  44   if (creating_rect)
  45     {
  46       gc->GraphicContext::draw_rect(click_pos, mouse_pos, Colors::selection_rect);
  47     }
  48 }
  49
  50 Collider*
  51 WorldViewColliderTool::get_collider (const Vector2d& pos)
  52 {
  53   World& world = *Controller::instance()->get_world();
  54   World::Colliders& colliders = world.get_colliders();
  55   for (World::Colliders::reverse_iterator i = colliders.rbegin ();
  56        i != colliders.rend(); ++i)
  57     {
  58       if ((*i)->is_at(pos))
  59         return *i;
  60     }
  61   return 0;
  62 }
  63
  64 void
  65 WorldViewColliderTool::draw_foreground (ZoomGraphicContext* gc)
  66 {
  67   Vector2d mouse_pos
  68     = WorldViewComponent::instance()->get_gc()->screen_to_world(input_context->get_mouse_pos ());
  69   Collider* collider = get_collider (mouse_pos);
  70
  71   if (collider)
  72     collider->draw_highlight(gc);
  73 }
  74
  75 void
  76 WorldViewColliderTool::on_primary_button_press (int x, int y)
  77 {
  78   WorldGUIManager::instance()->grab_mouse (WorldViewComponent::instance());
  79
  80   click_pos = WorldViewComponent::instance()->get_gc()->screen_to_world(input_context->get_mouse_pos ());
  81
  82   if ((move_collider = get_collider (click_pos)) != 0)
  83     {
  84       // click_pos Offset, not position
  85       click_pos = click_pos - move_collider->get_pos();
  86       creating_rect = false;
  87       Controller::instance()->push_undo();
  88     }
  89   else
  90     {
  91       Controller::instance()->push_undo();
  92       creating_rect = true;
  93     }
  94 }
  95
  96 void
  97 WorldViewColliderTool::on_primary_button_release (int x, int y)
  98 {
  99   WorldGUIManager::instance()->ungrab_mouse (WorldViewComponent::instance());
 100
 101   if (creating_rect)
 102     {
 103       Vector2d pos2 = WorldViewComponent::instance()->get_gc()->screen_to_world(input_context->get_mouse_pos ());
 104       World& world = *Controller::instance()->get_world();
 105
 106       if (fabs(pos2.x - click_pos.x) < 15
 107           || fabs(pos2.y - click_pos.y) < 15)
 108         {
 109           std::cout << "Rect collider to small, not inserting" << std::endl;
 110         }
 111       else
 112         {
 113           world.add_rect_collider (click_pos, pos2);
 114         }
 115     }
 116
 117   creating_rect = false;
 118   move_collider = 0;
 119 }
 120
 121 void
 122 WorldViewColliderTool::on_mouse_move (int x, int y, int of_x, int of_y)
 123 {
 124   Vector2d current_pos = WorldViewComponent::instance()->get_gc()->screen_to_world(Vector2d(x,y));
 125
 126   if (move_collider)
 127     {
 128       move_collider->set_pos(current_pos - click_pos);
 129     }
 130 }
 131
 132 void
 133 WorldViewColliderTool::on_secondary_button_press (int x, int y)
 134 {
 135   to_delete_collider = get_collider(WorldViewComponent::instance()->get_gc()->screen_to_world(Vector2d(x, y)));
 136 }
 137
 138 void
 139 WorldViewColliderTool::on_secondary_button_release (int x, int y)
 140 {
 141   World& world = *Controller::instance()->get_world();
 142
 143   if (to_delete_collider
 144       == get_collider(WorldViewComponent::instance()->get_gc()->screen_to_world(Vector2d(x, y))))
 145     {
 146       Controller::instance()->push_undo();
 147       world.remove_collider(to_delete_collider);
 148     }
 149   to_delete_collider = 0;
 150 }
 151
 152 /* EOF */