Move Quicktune code to util/ (#8871)

src/util/quicktune.h

@@ -0,0 +1,98 @@
+/*
+Minetest
+Copyright (C) 2013 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 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.
+*/
+
+/*
+	Used for tuning constants when developing.
+
+	Eg. if you have this constant somewhere that you just can't get right
+	by changing it and recompiling all over again:
+		v3f wield_position = v3f(55, -35, 65);
+
+	Make it look like this:
+		v3f wield_position = v3f(55, -35, 65);
+		QUICKTUNE_AUTONAME(QVT_FLOAT, wield_position.X, 0, 100);
+		QUICKTUNE_AUTONAME(QVT_FLOAT, wield_position.Y, -80, 20);
+		QUICKTUNE_AUTONAME(QVT_FLOAT, wield_position.Z, 0, 100);
+
+	Then you can modify the values at runtime, using the keys
+		keymap_quicktune_prev
+		keymap_quicktune_next
+		keymap_quicktune_dec
+		keymap_quicktune_inc
+
+	Once you have modified the values at runtime and then quit, the game
+	will print out all the modified values at the end:
+		Modified quicktune values:
+		wield_position.X = 60
+		wield_position.Y = -30
+		wield_position.Z = 65
+
+	The QUICKTUNE macros shouldn't generally be left in committed code.
+*/
+
+#pragma once
+
+#include <string>
+#include <map>
+#include <vector>
+
+enum QuicktuneValueType{
+	QVT_NONE,
+	QVT_FLOAT
+};
+struct QuicktuneValue
+{
+	QuicktuneValueType type = QVT_NONE;
+	union{
+		struct{
+			float current;
+			float min;
+			float max;
+		} value_QVT_FLOAT;
+	};
+	bool modified = false;
+
+	QuicktuneValue() = default;
+
+	std::string getString();
+	void relativeAdd(float amount);
+};
+
+std::vector<std::string> getQuicktuneNames();
+QuicktuneValue getQuicktuneValue(const std::string &name);
+void setQuicktuneValue(const std::string &name, const QuicktuneValue &val);
+
+void updateQuicktuneValue(const std::string &name, QuicktuneValue &val);
+
+#ifndef NDEBUG
+	#define QUICKTUNE(type_, var, min_, max_, name){\
+		QuicktuneValue qv;\
+		qv.type = type_;\
+		qv.value_##type_.current = var;\
+		qv.value_##type_.min = min_;\
+		qv.value_##type_.max = max_;\
+		updateQuicktuneValue(name, qv);\
+		var = qv.value_##type_.current;\
+	}
+#else // NDEBUG
+	#define QUICKTUNE(type, var, min_, max_, name){}
+#endif
+
+#define QUICKTUNE_AUTONAME(type_, var, min_, max_)\
+	QUICKTUNE(type_, var, min_, max_, #var)