Mercurial > hg > forks > yadex
annotate src/gotoobj.cc @ 89:99242b34e6dc
Fix some cosmetics and warnings.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Mon, 06 Oct 2014 00:13:11 +0300 |
| parents | 2f1ecc1c5f72 |
| children | 20aa5a515896 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * gotoobj.cc |
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3 * AYM 1998-09-06 |
| 0 | 4 */ |
| 5 | |
| 6 | |
| 7 /* | |
| 8 This file is part of Yadex. | |
| 9 | |
| 10 Yadex incorporates code from DEU 5.21 that was put in the public domain in | |
| 11 1994 by Raphaël Quinet and Brendon Wyber. | |
| 12 | |
| 13 The rest of Yadex is Copyright © 1997-2003 André Majorel and others. | |
| 14 | |
| 15 This program is free software; you can redistribute it and/or modify it under | |
| 16 the terms of the GNU General Public License as published by the Free Software | |
| 17 Foundation; either version 2 of the License, or (at your option) any later | |
| 18 version. | |
| 19 | |
| 20 This program is distributed in the hope that it will be useful, but WITHOUT | |
| 21 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
| 22 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. | |
| 23 | |
| 24 You should have received a copy of the GNU General Public License along with | |
| 25 this program; if not, write to the Free Software Foundation, Inc., 59 Temple | |
| 26 Place, Suite 330, Boston, MA 02111-1307, USA. | |
| 27 */ | |
| 28 | |
| 29 | |
| 30 #include "yadex.h" | |
| 31 #include "gfx.h" | |
| 32 #include "gotoobj.h" | |
| 33 #include "levels.h" | |
| 34 #include "objects.h" | |
| 35 #include "objid.h" | |
| 36 #include "x_hover.h" | |
| 37 | |
| 38 | |
| 39 /* | |
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40 * CenterMapAroundCoords |
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41 * Change the view so that the map coordinates (xpos, ypos) |
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42 * appear at the centre of the window |
| 0 | 43 */ |
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44 void CenterMapAroundCoords(int xpos, int ypos) |
| 0 | 45 { |
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46 cfg.OrigX = xpos; |
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47 cfg.OrigY = ypos; |
| 0 | 48 /* AYM 1998-09-20 This is a DOS-ism. IIRC, the ICCCM says an |
| 49 application program should generally not mess with the | |
| 50 pointer. */ | |
| 51 #if 0 | |
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52 is.x = cfg.ScrCenterX; |
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53 is.y = cfg.ScrCenterY; |
| 0 | 54 #endif |
| 55 } | |
| 56 | |
| 57 | |
| 58 /* | |
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59 * focus_on_map_coords |
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60 * Change the view so that the map coordinates (xpos, ypos) |
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61 * appear under the pointer |
| 0 | 62 */ |
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63 void focus_on_map_coords(int x, int y) |
| 0 | 64 { |
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65 cfg.OrigX = x - (MAPX(is.x) - cfg.OrigX); |
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66 cfg.OrigY = y - (MAPY(is.y) - cfg.OrigY); |
| 0 | 67 } |
| 68 | |
| 69 | |
| 70 /* | |
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71 * sector_under_pointer |
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72 * Convenience function |
| 0 | 73 */ |
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74 inline int sector_under_pointer() |
| 0 | 75 { |
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76 Objid o; |
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77 GetCurObject(o, OBJ_SECTORS, MAPX(is.x), MAPY(is.y)); |
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78 return o.num; |
| 0 | 79 } |
| 80 | |
| 81 | |
| 82 /* | |
| 83 centre the map around the object and zoom in if necessary | |
| 84 */ | |
| 85 | |
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86 void GoToObject(const Objid & objid) /* SWAP! */ |
| 0 | 87 { |
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88 int xpos, ypos; |
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89 int xpos2, ypos2; |
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90 int sd1, sd2; |
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91 float oldscale; |
| 0 | 92 |
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93 GetObjectCoords(objid.type, objid.num, &xpos, &ypos); |
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94 focus_on_map_coords(xpos, ypos); |
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95 oldscale = cfg.Scale; |
| 0 | 96 |
| 97 /* I ifdef'd out this block because the only thing it really | |
| 98 does is (uselessly) messing the zoom factor up when there are | |
| 99 superimposed objects and we're trying to focus on the | |
| 100 highest-numbered (and therefore hidden) one. AYM 1999-07-26 */ | |
| 101 #if 0 | |
| 102 /* zoom in until the object can be selected */ | |
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103 while (cfg.Scale < 8.0 |
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104 && GetCurObject(objid.type, MAPX(is.x), MAPY(is.y)) != objid.num) |
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105 { |
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106 if (cfg.Scale < 1.0) |
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107 cfg.Scale = 1.0 / ((1.0 / cfg.Scale) - 1.0); |
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108 else |
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109 cfg.Scale *= 2.0; |
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110 } |
| 0 | 111 #endif |
| 112 | |
| 113 /* Special case for sectors: if a sector contains other sectors, | |
| 114 or if its shape is such that it does not contain its own | |
| 115 geometric centre, zooming in on the centre won't help. So I | |
| 116 choose a linedef that borders the sector and focus on a point | |
| 117 between the centre of the linedef and the centre of the | |
| 118 sector. If that doesn't help, I try another linedef. | |
| 119 | |
| 120 This algorithm is not perfect but it works rather well with | |
| 121 most well-constituted sectors. It does not work so well for | |
| 122 unclosed sectors, though (but it's partly GetCurObject()'s | |
| 123 fault). */ | |
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124 if (objid.type == OBJ_SECTORS && sector_under_pointer() != objid.num) |
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125 { |
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126 /* restore the Scale */ |
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127 cfg.Scale = oldscale; |
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128 for (int n = 0; n < NumLineDefs; n++) |
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129 { |
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130 sd1 = LineDefs[n].sidedef1; |
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131 sd2 = LineDefs[n].sidedef2; |
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132 if ((sd1 >= 0 && SideDefs[sd1].sector == objid.num) || |
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133 (sd2 >= 0 && SideDefs[sd2].sector == objid.num)) |
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134 { |
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135 GetObjectCoords(OBJ_LINEDEFS, n, &xpos2, &ypos2); |
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136 int d = ComputeDist(abs(xpos - xpos2), abs(ypos - ypos2)) / 7; |
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137 if (d <= 1) |
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138 d = 2; |
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139 xpos = xpos2 + (xpos - xpos2) / d; |
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140 ypos = ypos2 + (ypos - ypos2) / d; |
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141 focus_on_map_coords(xpos, ypos); |
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142 if (sector_under_pointer() == objid.num) |
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143 break; |
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144 } |
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145 } |
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146 } |
| 0 | 147 } |