Add quicktune.{cpp,h}

1 files changed, 148 insertions, 0 deletions

diff --git a/src/quicktune.h b/src/quicktune.h
new file mode 100644
index 000000000..bebf1cbe1
--- /dev/null
+++ b/src/quicktune.h
@@ -0,0 +1,148 @@
+/*
+Minetest-c55
+Copyright (C) 2012 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 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 General Public License for more details.
+
+You should have received a copy of the GNU 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 QUICKTUNE_HEADER
+#define QUICKTUNE_HEADER
+
+#include "irrlichttypes.h"
+#include <string>
+#include <map>
+#include <vector>
+#include "utility.h"
+
+enum QuicktuneValueType{
+	QUICKTUNE_NONE,
+	QUICKTUNE_FLOAT
+};
+struct QuicktuneValue
+{
+	QuicktuneValueType type;
+	union{
+		struct{
+			float current;
+			float min;
+			float max;
+		} value_float;
+	};
+};
+
+std::vector<std::string> getQuicktuneNames();
+//std::map<std::string, QuicktuneValue> getQuicktuneNames();
+QuicktuneValue getQuicktuneValue(const std::string &name);
+void setQuicktuneValue(const std::string &name, const QuicktuneValue &val);
+
+class QuicktuneShortcutter
+{
+private:
+	std::vector<std::string> m_names;
+	u32 m_selected_i;
+	std::string m_message;
+public:
+	std::string getMessage()
+	{
+		std::string s = m_message;
+		m_message = "";
+		return s;
+	}
+	std::string getSelectedName()
+	{
+		if(m_selected_i < m_names.size())
+			return m_names[m_selected_i];
+		return "";
+	}
+	void next()
+	{
+		m_names = getQuicktuneNames();
+		if(m_selected_i < m_names.size()-1)
+			m_selected_i++;
+		else
+			m_selected_i = 0;
+		m_message = std::string("Selected \"")+getSelectedName()+"\"";
+	}
+	void prev()
+	{
+		m_names = getQuicktuneNames();
+		if(m_selected_i > 0)
+			m_selected_i--;
+		else
+			m_selected_i = m_names.size()-1;
+		m_message = std::string("Selected \"")+getSelectedName()+"\"";
+	}
+	void inc()
+	{
+		QuicktuneValue val = getQuicktuneValue(getSelectedName());
+		switch(val.type){
+		case QUICKTUNE_NONE:
+			break;
+		case QUICKTUNE_FLOAT:
+			val.value_float.current += 0.05 * (val.value_float.max - val.value_float.min);
+			if(val.value_float.current > val.value_float.max)
+				val.value_float.current = val.value_float.max;
+			m_message = std::string("\"")+getSelectedName()
+					+"\" = "+ftos(val.value_float.current);
+			break;
+		default:
+			m_message = std::string("\"")+getSelectedName()
+					+"\" has unknown value type";
+		}
+		setQuicktuneValue(getSelectedName(), val);
+	}
+	void dec()
+	{
+		QuicktuneValue val = getQuicktuneValue(getSelectedName());
+		switch(val.type){
+		case QUICKTUNE_NONE:
+			break;
+		case QUICKTUNE_FLOAT:
+			val.value_float.current -= 0.05 * (val.value_float.max - val.value_float.min);
+			if(val.value_float.current < val.value_float.max)
+				val.value_float.current = val.value_float.max;
+			m_message = std::string("\"")+getSelectedName()
+					+"\" = "+ftos(val.value_float.current);
+			break;
+		default:
+			m_message = std::string("\"")+getSelectedName()
+					+"\" has unknown value type";
+		}
+		setQuicktuneValue(getSelectedName(), val);
+	}
+};
+
+void updateQuicktuneValue(const std::string &name, QuicktuneValue &val);
+
+#ifndef NDEBUG
+
+#define QUICKTUNE_FLOAT(var, min, max, name){\
+	QuicktuneValue qv;\
+	qv.type = QUICKTUNE_FLOAT;\
+	qv.value_float.current = var;\
+	qv.value_float.min = min;\
+	qv.value_float.min = max;\
+	updateQuicktune(name, qv);\
+	var = qv.value_float.current;\
+}
+
+#else // NDEBUG
+
+#define QUICKTUNE_FLOAT(var, min, max, name){}
+
+#endif
+
+#endif
+