Re-add jungles, apple trees
[oweals/minetest.git] / src / quicktune.cpp
1 /*
2 Minetest
3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
19
20 #include "quicktune.h"
21 #include <jmutex.h>
22 #include <jmutexautolock.h>
23 #include "util/string.h"
24
25 std::string QuicktuneValue::getString()
26 {
27         switch(type){
28         case QVT_NONE:
29                 return "(none)";
30         case QVT_FLOAT:
31                 return ftos(value_QVT_FLOAT.current);
32         }
33         return "<invalid type>";
34 }
35 void QuicktuneValue::relativeAdd(float amount)
36 {
37         switch(type){
38         case QVT_NONE:
39                 break;
40         case QVT_FLOAT:
41                 value_QVT_FLOAT.current += amount * (value_QVT_FLOAT.max - value_QVT_FLOAT.min);
42                 if(value_QVT_FLOAT.current > value_QVT_FLOAT.max)
43                         value_QVT_FLOAT.current = value_QVT_FLOAT.max;
44                 if(value_QVT_FLOAT.current < value_QVT_FLOAT.min)
45                         value_QVT_FLOAT.current = value_QVT_FLOAT.min;
46                 break;
47         }
48 }
49
50 static std::map<std::string, QuicktuneValue> g_values;
51 static std::vector<std::string> g_names;
52 JMutex *g_mutex = NULL;
53
54 static void makeMutex()
55 {
56         if(!g_mutex){
57                 g_mutex = new JMutex();
58                 g_mutex->Init();
59         }
60 }
61
62 std::vector<std::string> getQuicktuneNames()
63 {
64         return g_names;
65 }
66
67 QuicktuneValue getQuicktuneValue(const std::string &name)
68 {
69         makeMutex();
70         JMutexAutoLock lock(*g_mutex);
71         std::map<std::string, QuicktuneValue>::iterator i = g_values.find(name);
72         if(i == g_values.end()){
73                 QuicktuneValue val;
74                 val.type = QVT_NONE;
75                 return val;
76         }
77         return i->second;
78 }
79
80 void setQuicktuneValue(const std::string &name, const QuicktuneValue &val)
81 {
82         makeMutex();
83         JMutexAutoLock lock(*g_mutex);
84         g_values[name] = val;
85         g_values[name].modified = true;
86 }
87
88 void updateQuicktuneValue(const std::string &name, QuicktuneValue &val)
89 {
90         makeMutex();
91         JMutexAutoLock lock(*g_mutex);
92         std::map<std::string, QuicktuneValue>::iterator i = g_values.find(name);
93         if(i == g_values.end()){
94                 g_values[name] = val;
95                 g_names.push_back(name);
96                 return;
97         }
98         QuicktuneValue &ref = i->second;
99         if(ref.modified)
100                 val = ref;
101         else{
102                 ref = val;
103                 ref.modified = false;
104         }
105 }
106