summaryrefslogtreecommitdiff
path: root/src/guiEngine.h
blob: 6b7d3b6ed11ef24eaac418cbdc06c3985d8cbb75 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
/*
Minetest
Copyright (C) 2013 sapier

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#ifndef GUI_ENGINE_H_
#define GUI_ENGINE_H_

/******************************************************************************/
/* Includes                                                                   */
/******************************************************************************/
#include "irrlichttypes.h"
#include "modalMenu.h"
#include "clouds.h"
#include "guiFormSpecMenu.h"
#include "sound.h"

/******************************************************************************/
/* Typedefs and macros                                                        */
/******************************************************************************/
#define MAX_MENUBAR_BTN_COUNT	10
#define MAX_MENUBAR_BTN_ID		256
#define MIN_MENUBAR_BTN_ID		(MAX_MENUBAR_BTN_ID - MAX_MENUBAR_BTN_COUNT)

/** texture layer ids */
typedef enum {
	TEX_LAYER_BACKGROUND = 0,
	TEX_LAYER_OVERLAY,
	TEX_LAYER_HEADER,
	TEX_LAYER_FOOTER,
	TEX_LAYER_MAX
} texture_layer;

/******************************************************************************/
/* forward declarations                                                       */
/******************************************************************************/
class GUIEngine;
class MainMenuScripting;
struct MainMenuData;
struct SimpleSoundSpec;

/******************************************************************************/
/* declarations                                                               */
/******************************************************************************/

/** GUIEngine specific implementation of TextDest used within guiFormSpecMenu */
class TextDestGuiEngine : public TextDest
{
public:
	/**
	 * default constructor
	 * @param engine the engine data is transmitted for further processing
	 */
	TextDestGuiEngine(GUIEngine* engine);
	/**
	 * receive fields transmitted by guiFormSpecMenu
	 * @param fields map containing formspec field elements currently active
	 */
	void gotText(std::map<std::string, std::string> fields);

	/**
	 * receive text/events transmitted by guiFormSpecMenu
	 * @param text textual representation of event
	 */
	void gotText(std::wstring text);
private:
	/** target to transmit data to */
	GUIEngine* m_engine;
};

class MenuMusicFetcher: public OnDemandSoundFetcher
{
	std::set<std::string> m_fetched;
public:
	void fetchSounds(const std::string &name,
			std::set<std::string> &dst_paths,
			std::set<std::string> &dst_datas);
};

/** implementation of main menu based uppon formspecs */
class GUIEngine {
	/** grant ModApiMainMenu access to private members */
	friend class ModApiMainMenu;

public:
	/**
	 * default constructor
	 * @param dev device to draw at
	 * @param parent parent gui element
	 * @param menumgr manager to add menus to
	 * @param smgr scene manager to add scene elements to
	 * @param data struct to transfer data to main game handling
	 */
	GUIEngine(	irr::IrrlichtDevice* dev,
				gui::IGUIElement* parent,
				IMenuManager *menumgr,
				scene::ISceneManager* smgr,
				MainMenuData* data,
				bool& kill);

	/** default destructor */
	virtual ~GUIEngine();

	/**
	 * return MainMenuScripting interface
	 */
	MainMenuScripting* getScriptIface() {
		return m_script;
	}

	/**
	 * return dir of current menuscript
	 */
	std::string getScriptDir() {
		return m_scriptdir;
	}

private:

	/** find and run the main menu script */
	bool loadMainMenuScript();

	/** run main menu loop */
	void run();

	/** handler to limit frame rate within main menu */
	void limitFrameRate();

	/** device to draw at */
	irr::IrrlichtDevice*	m_device;
	/** parent gui element */
	gui::IGUIElement*		m_parent;
	/** manager to add menus to */
	IMenuManager*			m_menumanager;
	/** scene manager to add scene elements to */
	scene::ISceneManager*	m_smgr;
	/** pointer to data beeing transfered back to main game handling */
	MainMenuData*			m_data;
	/** pointer to soundmanager*/
	ISoundManager*			m_sound_manager;

	/** representation of form source to be used in mainmenu formspec */
	FormspecFormSource*		m_formspecgui;
	/** formspec input receiver */
	TextDestGuiEngine*		m_buttonhandler;
	/** the formspec menu */
	GUIFormSpecMenu*		m_menu;

	/** reference to kill variable managed by SIGINT handler */
	bool&					m_kill;

	/** variable used to abort menu and return back to main game handling */
	bool					m_startgame;

	/** scripting interface */
	MainMenuScripting*			m_script;

	/** script basefolder */
	std::string				m_scriptdir;

	/**
	 * draw background layer
	 * @param driver to use for drawing
	 */
	void drawBackground(video::IVideoDriver* driver);
	/**
	 * draw overlay layer
	 * @param driver to use for drawing
	 */
	void drawOverlay(video::IVideoDriver* driver);
	/**
	 * draw header layer
	 * @param driver to use for drawing
	 */
	void drawHeader(video::IVideoDriver* driver);
	/**
	 * draw footer layer
	 * @param driver to use for drawing
	 */
	void drawFooter(video::IVideoDriver* driver);

	/**
	 * load a texture for a specified layer
	 * @param layer draw layer to specify texture
	 * @param texturepath full path of texture to load
	 */
	bool setTexture(texture_layer layer,std::string texturepath);

	/**
	 * download a file using curl
	 * @param url url to download
	 * @param target file to store to
	 */
	bool downloadFile(std::string url,std::string target);

	/** array containing pointers to current specified texture layers */
	video::ITexture*		m_textures[TEX_LAYER_MAX];

	/** draw version string in topleft corner */
	void drawVersion();

	/**
	 * specify text to be appended to version string
	 * @param text to set
	 */
	void setTopleftText(std::string append);

	/** pointer to gui element shown at topleft corner */
	irr::gui::IGUIStaticText*	m_irr_toplefttext;

	/** initialize cloud subsystem */
	void cloudInit();
	/** do preprocessing for cloud subsystem */
	void cloudPreProcess();
	/** do postprocessing for cloud subsystem */
	void cloudPostProcess();

	/** internam data required for drawing clouds */
	struct clouddata {
		/** delta time since last cloud processing */
		f32		dtime;
		/** absolute time of last cloud processing */
		u32		lasttime;
		/** pointer to cloud class */
		Clouds*	clouds;
		/** camera required for drawing clouds */
		scene::ICameraSceneNode* camera;
	};

	/** is drawing of clouds enabled atm */
	bool					m_clouds_enabled;
	/** data used to draw clouds */
	clouddata 				m_cloud;

	/** start playing a sound and return handle */
	s32 playSound(SimpleSoundSpec spec, bool looped);
	/** stop playing a sound started with playSound() */
	void stopSound(s32 handle);


};



#endif /* GUI_ENGINE_H_ */