1 /*
2  * Kuklomenos
3  * Copyright (C) 2008-2009 Martin Bays <mbays@sdf.lonestar.org>
4  *
5  * This program is free software: you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation, either version 3 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program.  If not, see http://www.gnu.org/licenses/.
17  */
18 
19 #include <vector>
20 #include <string>
21 #include <sstream>
22 using namespace std;
23 
24 #include "menu.h"
25 #include "settings.h"
26 #include "data.h"
27 #include "geom.h"
28 #include "keybindings.h"
29 #include "SDL_gfxPrimitivesDirty.h"
30 
31 #include <config.h>
32 
Menu(string title,Menu * m1,MenuLeaf * ml1,Menu * m2,MenuLeaf * ml2,Menu * m3,MenuLeaf * ml3,Menu * m4,MenuLeaf * ml4)33 Menu::Menu(string title,
34 	Menu* m1, MenuLeaf* ml1,
35 	Menu* m2, MenuLeaf* ml2,
36 	Menu* m3, MenuLeaf* ml3,
37 	Menu* m4, MenuLeaf* ml4) :
38     title(title)
39 {
40     menus[0] = m1;
41     menus[1] = m2;
42     menus[2] = m3;
43     menus[3] = m4;
44 
45     leaves[0] = ml1;
46     leaves[1] = ml2;
47     leaves[2] = ml3;
48     leaves[3] = ml4;
49 }
50 
textOfDir(int dir) const51 string Menu::textOfDir(int dir) const
52 {
53     Menu* submenu = menus[dir];
54     MenuLeaf* leaf = leaves[dir];
55 
56     if (submenu)
57 	return submenu->title;
58     else if (leaf)
59 	return leaf->name();
60     else
61 	return "";
62 }
63 
name()64 string MenuLeafToggleBool::name()
65 {
66     return varName +
67 	((*var) ?
68 	 ": on" :
69 	 ": off");
70 }
71 
act()72 LeafReturn MenuLeafToggleBool::act()
73 {
74     *var = !*var;
75     return LR_NONE;
76 }
77 
name()78 string MenuLeafCycleAA::name()
79 {
80     switch (settings.useAA)
81     {
82 	case AA_NO: return "Anti-alias: none";
83 	case AA_YES: return "Anti-alias: some";
84 	case AA_FORCE: default: return "Anti-alias: all";
85     }
86 }
87 
act()88 LeafReturn MenuLeafCycleAA::act()
89 {
90     settings.useAA =
91 	(settings.useAA == AA_NO) ? AA_YES :
92 	(settings.useAA == AA_YES) ? AA_FORCE :
93 	AA_NO;
94     return LR_NONE;
95 }
96 
97 MenuLeafToggleBool zoomToggle("Zoom", &settings.zoomEnabled);
98 MenuLeafToggleBool rotToggle("Rotate", &settings.rotatingView);
99 MenuLeafToggleBool gridToggle("Grid", &settings.showGrid);
100 Menu viewMenu("View",
101 	NULL, &zoomToggle,
102 	NULL, &rotToggle,
103 	NULL, &gridToggle
104 	);
105 
106 #ifdef SOUND
name()107 string MenuLeafCycleFreq::name()
108 {
109     ostringstream s;
110     s << "Freq: " << settings.soundFreq;
111     return s.str();
112 }
act()113 LeafReturn MenuLeafCycleFreq::act()
114 {
115     settings.soundFreq =
116 	(settings.soundFreq >= 44100) ? 11025 :
117 	(settings.soundFreq >= 22050) ? 44100 :
118 	(settings.soundFreq >= 11025) ? 22050 :
119 	11025;
120     return LR_NONE;
121 }
122 MenuLeafCycleFreq cycleFreq;
123 
124 MenuLeafToggleBool soundToggle("Sound", &settings.sound);
125 MenuLeafIncVar<float> decVol(&settings.volume,
126 	"Volume", -0.1, 0.1, 1);
127 MenuLeafIncVar<float> incVol(&settings.volume,
128 	"Volume", 0.1, 0.1, 1);
129 MenuLeafShowVar<float> showVol(&settings.volume,
130 	"Volume");
131 Menu volumeMenu("Volume",
132 	NULL, &decVol,
133 	NULL, NULL,
134 	NULL, &incVol,
135 	NULL, &showVol
136 	);
137 Menu soundMenu("Sound",
138 	NULL, &cycleFreq,
139 	NULL, NULL,
140 	NULL, &soundToggle,
141 	&volumeMenu, NULL
142 	);
143 #endif
144 
145 MenuLeafCycleAA cycleAALeaf;
146 MenuLeafIncVar<double> decAlphaLeaf(&antialiasGamma, "AA Gamma", -0.1, 0.1);
147 MenuLeafIncVar<double> incAlphaLeaf(&antialiasGamma, "AA Gamma", 0.1, 0.1);
148 MenuLeafShowVar<double> showAlphaLeaf(&antialiasGamma, "AA Gamma");
149 Menu AAMenu("Anti-Aliasing",
150 	NULL, &decAlphaLeaf,
151 	NULL, &cycleAALeaf,
152 	NULL, &incAlphaLeaf,
153 	NULL, &showAlphaLeaf);
154 
155 MenuLeafToggleBool showFPSToggle("Show FPS", &settings.showFPS);
156 MenuLeafIncVar<int> decFPSLeaf(&settings.fps, "FPS", -1, 2);
157 MenuLeafIncVar<int> incFPSLeaf(&settings.fps, "FPS", 1, 2);
158 MenuLeafShowVar<int> showFPSLeaf(&settings.fps, "FPS");
159 Menu fpsMenu("Framerate",
160 	NULL, &decFPSLeaf,
161 	NULL, &showFPSToggle,
162 	NULL, &incFPSLeaf,
163 	NULL, &showFPSLeaf
164 	);
165 
act()166 LeafReturn MenuLeafCycleBpp::act()
167 {
168     settings.bpp += 8;
169     if (settings.bpp > 32)
170 	settings.bpp = 8;
171     return LR_NONE;
172 }
173 MenuLeafCycleBpp cycleBppLeaf;
name()174 string MenuLeafSetRes::name()
175 {
176     std::stringstream ss;
177     ss << "Set " << settings.width << "x" << settings.height << "x" << settings.bpp <<
178 	((settings.videoFlags & SDL_FULLSCREEN) ? " fs" : "");
179     return ss.str();
180 }
181 MenuLeafSetRes setResLeaf;
182 
act()183 LeafReturn MenuLeafToggleFullscreen::act()
184 {
185     if (settings.videoFlags & SDL_FULLSCREEN)
186 	settings.videoFlags &= ~SDL_FULLSCREEN;
187     else
188 	settings.videoFlags |= SDL_FULLSCREEN;
189     return LR_NONE;
190 }
191 MenuLeafToggleFullscreen toggleFullscreen;
192 
act()193 LeafReturn MenuLeafCycleRes::act()
194 {
195     std::vector<Rect> modes = getSDLModes();
196     if (modes.empty())
197 	return LR_NONE;
198 
199     // set to next biggest mode if exists, else smallest mode
200     Rect currentMode(settings.width, settings.height);
201 
202     Rect nextBiggestMode;
203     Rect smallestMode;
204     for (std::vector<Rect>::iterator it = modes.begin();
205 	    it != modes.end(); it++)
206     {
207 	if (Rect::cmp(*it, currentMode) == 1 &&
208 		(nextBiggestMode.w == 0 ||
209 		 Rect::cmp(*it, nextBiggestMode) == -1))
210 	    nextBiggestMode = *it;
211 	if (smallestMode.w == 0 || Rect::cmp(*it, smallestMode) == -1)
212 	    smallestMode = *it;
213     }
214 
215     const Rect newMode = nextBiggestMode.w ? nextBiggestMode : smallestMode;
216     if (newMode.w == 0)
217 	return LR_NONE;
218 
219     settings.width = newMode.w;
220     settings.height = newMode.h;
221     return LR_NONE;
222 }
223 MenuLeafCycleRes cycleRes;
224 
name()225 string MenuLeafCycleBGType::name()
226 {
227     return string("Background: " + bgTypeStrings[settings.bgType]);
228 }
act()229 LeafReturn MenuLeafCycleBGType::act()
230 {
231     if (settings.bgType == BG_LAST)
232 	settings.bgType = BG_FIRST;
233     else
234 	settings.bgType = BGType(settings.bgType + 1);
235     return LR_NEWBACKGROUND;
236 }
237 MenuLeafCycleBGType cycleBGType;
238 
239 Menu resolutionMenu("Display",
240 	NULL, &cycleRes,
241 	NULL, &toggleFullscreen,
242 	NULL, &cycleBppLeaf,
243 	NULL, &setResLeaf
244 	);
245 
246 Menu graphicsMenu("Graphics",
247 	&resolutionMenu, NULL,
248 	NULL, &cycleBGType,
249 	&fpsMenu, NULL,
250 	&AAMenu, NULL
251 	);
252 
name()253 string MenuLeafSpeed::name()
254 {
255     return (string("Speed: ") +
256 	    speedString(settings.speed));
257 }
act()258 LeafReturn MenuLeafSpeed::act()
259 {
260     settings.speed = (settings.speed + 1) % 3;
261     return LR_NEWSPEED;
262 }
263 MenuLeafSpeed speed;
264 
265 MenuLeafIncVar<float> decTurnRateLeaf(&settings.turnRateFactor,
266 	"Turn Rate", -0.1, 0.1, 1);
267 MenuLeafIncVar<float> incTurnRateLeaf(&settings.turnRateFactor,
268 	"Turn Rate", 0.1, 0.1, 1);
269 MenuLeafShowVar<float> showTurnRateLeaf(&settings.turnRateFactor,
270 	"Turn Rate");
271 Menu turnRateMenu("Turn rate",
272 	NULL, &decTurnRateLeaf,
273 	NULL, NULL,
274 	NULL, &incTurnRateLeaf,
275 	NULL, &showTurnRateLeaf
276 	);
277 
name()278 string MenuLeafSetKey::name()
279 {
280     if (settings.commandToBind == C_NONE)
281 	return string(longCommandNames[selectedKey]) + string(": ") +
282 	    settings.keybindings[selectedKey].getString();
283     else
284 	return string(longCommandNames[selectedKey]) + string(": <press a key>");
285 }
act()286 LeafReturn MenuLeafSetKey::act()
287 {
288     settings.commandToBind = selectedKey;
289     return LR_NONE;
290 }
act()291 LeafReturn MenuLeafPrevKey::act()
292 {
293     if (*commandp == C_FIRST)
294 	*commandp = settings.debug ? C_LASTDEBUG : C_LAST;
295     else
296 	*commandp = command(*commandp - 1);
297     return LR_NONE;
298 }
act()299 LeafReturn MenuLeafNextKey::act()
300 {
301     if (*commandp == (settings.debug ? C_LASTDEBUG : C_LAST))
302 	*commandp = C_FIRST;
303     else
304 	*commandp = command(*commandp + 1);
305     return LR_NONE;
306 }
307 
getConflictingCommand()308 command MenuLeafKeyConflicts::getConflictingCommand()
309 {
310     const bool menu = isMenuCommand(*commandp);
311     const Key k = settings.keybindings.get(*commandp);
312 
313     if (k == KEY_NONE)
314 	return C_NONE;
315 
316     for (command c = C_FIRST; c <= C_LAST; c = command(c+1))
317 	if (settings.keybindings.get(c) == k && c != *commandp
318 		&& isMenuCommand(c) == menu)
319 	    return c;
320     return C_NONE;
321 }
name()322 string MenuLeafKeyConflicts::name()
323 {
324     const command c = getConflictingCommand();
325     if (c == C_NONE)
326 	return string("");
327     else
328 	return string("Conflicts with ") + longCommandNames[c];
329 }
act()330 LeafReturn MenuLeafKeyConflicts::act()
331 {
332     const command c = getConflictingCommand();
333     if (c != C_NONE)
334 	*commandp = c;
335     return LR_NONE;
336 }
337 
338 MenuLeafSetKey setKey;
339 MenuLeafPrevKey prevKey(&setKey.selectedKey);
340 MenuLeafNextKey nextKey(&setKey.selectedKey);
341 MenuLeafKeyConflicts keyConflicts(&setKey.selectedKey);
342 
343 Menu keybindingsMenu("Keybindings",
344 	NULL, &prevKey,
345 	NULL, &keyConflicts,
346 	NULL, &nextKey,
347 	NULL, &setKey
348 	);
349 
350 Menu controlMenu("Control",
351 	NULL, NULL,
352 	&turnRateMenu, NULL,
353 	NULL, NULL,
354 	&keybindingsMenu, NULL
355 	);
356 
357 Menu interfaceMenu("Interface",
358 	&graphicsMenu, NULL,
359 	NULL, NULL,
360 	&controlMenu, NULL,
361 #ifdef SOUND
362 	&soundMenu, NULL
363 #else
364 	NULL, NULL
365 #endif
366 	);
367 
368 MenuLeafReturn saveLeaf("Save settings", LR_SAVESETTINGS);
369 Menu settingsMenu("Settings",
370 	&interfaceMenu, NULL,
371 	NULL, &saveLeaf,
372 	&viewMenu, NULL,
373 	NULL, &speed
374 	);
375 
376 MenuLeafReturn quitLeaf("Quit", LR_QUIT);
377 MenuLeafReturn surrenderLeaf("Surrender", LR_SURRENDER);
378 Menu quitMenu("Abort",
379 	NULL, &quitLeaf,
380 	NULL, NULL,
381 	NULL, &surrenderLeaf
382 	);
383 
384 MenuLeafReturn resumeLeaf("Resume", LR_EXITMENU);
385 
386 Menu topMenu("top",
387 	NULL, NULL,
388 	&settingsMenu, NULL,
389 	NULL, NULL,
390 	&quitMenu, NULL
391 	);
392 
drawMenu(SDL_Surface * surface,const Menu & menu)393 void drawMenu(SDL_Surface* surface, const Menu& menu)
394 {
395     static const Uint32 colour = 0xffffffd0;
396     int fw = 10, fh = 20;
397     int menuRad = std::max(fh, screenGeom.rad/8);
398     const int textRoom = std::max(std::max(std::max(
399 	    menu.textOfDir(0).length()*fw,
400 	    menu.textOfDir(1).length()*fw/2),
401 	    menu.textOfDir(2).length()*fw),
402 	    menu.textOfDir(3).length()*fw/2);
403 
404     // check we have room:
405     if (screenGeom.centre.x - menuRad - textRoom > screenGeom.rad/5)
406 	gfxPrimitivesSetFont(fontBig, 10, 20);
407     else
408     {
409 	// use smaller font
410 	fw = 7;
411 	fh = 13;
412 	menuRad = std::max(fh, screenGeom.rad/10);
413 	gfxPrimitivesSetFont(fontSmall, 7, 13);
414     }
415 
416     filledCircleColor(surface, screenGeom.centre.x, screenGeom.centre.y+fh/2, screenGeom.rad/30,
417 	    colour - 0x20);
418     aacircleColor(surface, screenGeom.centre.x, screenGeom.centre.y+fh/2, screenGeom.rad/30,
419 	    colour - 0x20);
420 
421     const int textSizeHoriz = std::max(
422 	    menu.textOfDir(0).length()*fw,
423 	    menu.textOfDir(2).length()*fw);
424     for (int dir = 0; dir < 4; dir++)
425     {
426 	const string text = menu.textOfDir(dir);
427 	if (!text.empty())
428 	{
429 	    int x=0, y=0;
430 	    switch (dir)
431 	    {
432 		case 0:
433 		    x = screenGeom.centre.x - menuRad - textSizeHoriz/2 - text.length()*fw/2;
434 		    y = screenGeom.centre.y;
435 		    break;
436 		case 1:
437 		    x = screenGeom.centre.x - text.length()*fw/2;
438 		    y = screenGeom.centre.y - menuRad;
439 		    break;
440 		case 2:
441 		    x = screenGeom.centre.x + menuRad + textSizeHoriz/2 - text.length()*fw/2;
442 		    y = screenGeom.centre.y;
443 		    break;
444 		case 3:
445 		    x = screenGeom.centre.x - text.length()*fw/2;
446 		    y = screenGeom.centre.y + menuRad;
447 		    break;
448 		default:;
449 	    }
450 	    stringColor(surface, x, y, text.c_str(), colour);
451 	}
452     }
453 }
454