Vegastrike 0.5.1 rc1  1.0
Original sources for Vegastrike Evolved
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coord_select.cpp
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1 #include "cmd/unit_generic.h"
2 #include "star_system.h"
3 #include "loc_select.h"
4 #include "coord_select.h"
5 #include "vs_globals.h"
6 #include "in_kb.h"
7 #include "gfx/camera.h"
8 int CoordinateSelectChange = 0;
9 int CoordinateSelectmousex;
10 int CoordinateSelectmousey;
11 extern Vector MouseCoordinate( int mouseX, int mouseY );
12 extern KBSTATE keyState[LAST_MODIFIER][KEYMAP_SIZE];
13 void CoordinateSelect::MouseMoveHandle( KBSTATE, int x, int y, int, int, int )
14 {
15  if (keyState[0]['z'] == DOWN)
16  CoordinateSelectChange = 2;
17  else
18  CoordinateSelectChange = 1;
19  CoordinateSelectmousex = x;
20  CoordinateSelectmousey = y;
21 }
22 
23 CoordinateSelect::CoordinateSelect( QVector start ) : LocSelAni( "locationselect.ani", true, .5, MIPMAP, true )
24  , LocalPosition( start )
25 {
26  CrosshairSize = 2;
27  CoordinateSelectmousex = g_game.x_resolution/2;
28  CoordinateSelectmousey = g_game.y_resolution/2;
29  CoordinateSelectChange = 1;
30 }
31 void CoordinateSelect::UpdateMouse()
32 {
33  if (CoordinateSelectChange == 1) {
34  Vector CamPos;
35  Vector CamQ, CamR;
36  _Universe->AccessCamera()->GetPQR( CamPos, CamQ, CamR );
37 
38  Vector mousePoint( MouseCoordinate( CoordinateSelectmousex, CoordinateSelectmousey ) );
39  float mouseDistance = mousePoint.k*mousePoint.k;
40  mousePoint = Transform( CamPos, CamQ, CamR, mousePoint );
41  //QVector cp;
42  CamPos = _Universe->AccessCamera()->GetPosition();
43  //float mouseDistance = mousePoint.Dot (CamR);
44  //distance out into z...straight line...
45 
46  float distance = CamR.Dot( (LocalPosition-CamPos).Cast() ); //distance out into z...straight line...
47  //VSFileSystem::Fprintf (stderr, "distance:%f\n",distance);
48  //VSFileSystem::Fprintf (stderr, "mdistance:%f %f\n",mouseDistance,TMD);
49  if (mouseDistance != 0)
50  LocalPosition = mousePoint*(distance/mouseDistance)+CamPos.Cast();
51  else
52  LocalPosition = 2*CamR+CamPos.Cast();
53  CoordinateSelectChange = 0;
54  }
55  if (CoordinateSelectChange == 2) {
56  Vector CamPos, CamQ, CamR;
57  _Universe->AccessCamera()->GetPQR( CamPos, CamQ, CamR );
58  CamPos = _Universe->AccessCamera()->GetPosition();
59 
60  LocalPosition = LocalPosition-CamPos;
61  float distance = sqrt( CamR.Dot( LocalPosition ) ); //distance out into z...straight line...
62  //make it a ratio btw top and bottom.... for near and far;
63  float ratio = float(g_game.y_resolution-CoordinateSelectmousey)/g_game.y_resolution;
64  float tmp, n, f;
65  GFXGetFrustumVars( true, &tmp, &tmp, &tmp, &tmp, &n, &f );
66  tmp = n+ratio*ratio*ratio*(f-n); //how far n^3 law
67  if (distance != 0)
68  LocalPosition = LocalPosition*(tmp/distance)+CamPos;
69  else
70  LocalPosition = CamPos+CamR*n;
71  CoordinateSelectChange = 0;
72  }
73 }
74 void CoordinateSelect::Draw()
75 {
76  if (CoordinateSelectChange)
77  UpdateMouse();
78  GFXLoadIdentity( MODEL );
79 
80  GFXPushBlendMode();
81  //VSFileSystem::Fprintf (stderr,"Location: %f %f %f", LocalPosition.i, LocalPosition.j, LocalPosition.k);
82  GFXBlendMode( ONE, ONE );
83  LocSelAni.SetPosition( LocalPosition );
84  LocSelAni.Draw();
85  GFXPopBlendMode();
86 }
87