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vcmi/lib/CRandomGenerator.h

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/*
* CRandomGenerator.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#pragma once
Spells configuration version 2 (effect-based) * Indirect spell effects loading * Json serializer improvements * spell->canBeCastAt do not allow useless cast for any spell * Added proxy caster class for spell-created obstacles * Handle damage from spell-created obstacles inside mechanics * Experimental GameState integration/regression tests * Ignore mod settings and load only "vcmi" mod when running tests * fixed https://bugs.vcmi.eu/view.php?id=2765 (with tests) * Huge improvements of BattleAI regarding spell casts * AI can cast almost any combat spell except TELEPORT, SACRIFICE and obstacle placement spells. * Possible fix for https://bugs.vcmi.eu/view.php?id=1811 * CStack factored out to several classes * [Battle] Allowed RETURN_AFTER_STRIKE effect on server side to be optional * [Battle] Allowed BattleAction have multiple destinations * [Spells] Converted limit|immunity to target condition * [Spells] Use partial configuration reload for backward compatibility handling * [Tests] Started tests for CUnitState * Partial fixes of fire shield effect * [Battle] Do HP calculations in 64 bits * [BattleAI] Use threading for spell cast evaluation * [BattleAI] Made AI be able to evaluate modified turn order (on hypothetical battle state) * Implemented https://bugs.vcmi.eu/view.php?id=2811 * plug rare freeze when hypnotized unit shots vertically * Correctly apply ONLY_MELEE_FIGHT / ONLY_DISTANCE_FIGHT for unit damage, attack & defense * [BattleAI] Try to not waste a cast if battle is actually won already * Extended JsonSerializeFormat API * fixed https://bugs.vcmi.eu/view.php?id=2847 * Any unit effect can be now chained (not only damage like Chain Lightning) ** only damage effect for now actually uses "chainFactor" * Possible quick fix for https://bugs.vcmi.eu/view.php?id=2860
2017-07-20 06:08:49 +02:00
#include <vstd/RNG.h>
VCMI_LIB_NAMESPACE_BEGIN
typedef std::mt19937 TGenerator;
typedef std::uniform_int_distribution<int> TIntDist;
Spells configuration version 2 (effect-based) * Indirect spell effects loading * Json serializer improvements * spell->canBeCastAt do not allow useless cast for any spell * Added proxy caster class for spell-created obstacles * Handle damage from spell-created obstacles inside mechanics * Experimental GameState integration/regression tests * Ignore mod settings and load only "vcmi" mod when running tests * fixed https://bugs.vcmi.eu/view.php?id=2765 (with tests) * Huge improvements of BattleAI regarding spell casts * AI can cast almost any combat spell except TELEPORT, SACRIFICE and obstacle placement spells. * Possible fix for https://bugs.vcmi.eu/view.php?id=1811 * CStack factored out to several classes * [Battle] Allowed RETURN_AFTER_STRIKE effect on server side to be optional * [Battle] Allowed BattleAction have multiple destinations * [Spells] Converted limit|immunity to target condition * [Spells] Use partial configuration reload for backward compatibility handling * [Tests] Started tests for CUnitState * Partial fixes of fire shield effect * [Battle] Do HP calculations in 64 bits * [BattleAI] Use threading for spell cast evaluation * [BattleAI] Made AI be able to evaluate modified turn order (on hypothetical battle state) * Implemented https://bugs.vcmi.eu/view.php?id=2811 * plug rare freeze when hypnotized unit shots vertically * Correctly apply ONLY_MELEE_FIGHT / ONLY_DISTANCE_FIGHT for unit damage, attack & defense * [BattleAI] Try to not waste a cast if battle is actually won already * Extended JsonSerializeFormat API * fixed https://bugs.vcmi.eu/view.php?id=2847 * Any unit effect can be now chained (not only damage like Chain Lightning) ** only damage effect for now actually uses "chainFactor" * Possible quick fix for https://bugs.vcmi.eu/view.php?id=2860
2017-07-20 06:08:49 +02:00
typedef std::uniform_int_distribution<int64_t> TInt64Dist;
typedef std::uniform_real_distribution<double> TRealDist;
typedef std::function<int()> TRandI;
/// The random generator randomly generates integers and real numbers("doubles") between
/// a given range. This is a header only class and mainly a wrapper for
/// convenient usage of the standard random API. An instance of this RNG is not thread safe.
Spells configuration version 2 (effect-based) * Indirect spell effects loading * Json serializer improvements * spell->canBeCastAt do not allow useless cast for any spell * Added proxy caster class for spell-created obstacles * Handle damage from spell-created obstacles inside mechanics * Experimental GameState integration/regression tests * Ignore mod settings and load only "vcmi" mod when running tests * fixed https://bugs.vcmi.eu/view.php?id=2765 (with tests) * Huge improvements of BattleAI regarding spell casts * AI can cast almost any combat spell except TELEPORT, SACRIFICE and obstacle placement spells. * Possible fix for https://bugs.vcmi.eu/view.php?id=1811 * CStack factored out to several classes * [Battle] Allowed RETURN_AFTER_STRIKE effect on server side to be optional * [Battle] Allowed BattleAction have multiple destinations * [Spells] Converted limit|immunity to target condition * [Spells] Use partial configuration reload for backward compatibility handling * [Tests] Started tests for CUnitState * Partial fixes of fire shield effect * [Battle] Do HP calculations in 64 bits * [BattleAI] Use threading for spell cast evaluation * [BattleAI] Made AI be able to evaluate modified turn order (on hypothetical battle state) * Implemented https://bugs.vcmi.eu/view.php?id=2811 * plug rare freeze when hypnotized unit shots vertically * Correctly apply ONLY_MELEE_FIGHT / ONLY_DISTANCE_FIGHT for unit damage, attack & defense * [BattleAI] Try to not waste a cast if battle is actually won already * Extended JsonSerializeFormat API * fixed https://bugs.vcmi.eu/view.php?id=2847 * Any unit effect can be now chained (not only damage like Chain Lightning) ** only damage effect for now actually uses "chainFactor" * Possible quick fix for https://bugs.vcmi.eu/view.php?id=2860
2017-07-20 06:08:49 +02:00
class DLL_LINKAGE CRandomGenerator : public vstd::RNG, boost::noncopyable
{
public:
/// Seeds the generator by default with the product of the current time in milliseconds and the
/// current thread ID.
CRandomGenerator();
void setSeed(int seed);
/// Resets the seed to the product of the current time in milliseconds and the
/// current thread ID.
void resetSeed();
/// Generate several integer numbers within the same range.
/// e.g.: auto a = gen.getIntRange(0,10); a(); a(); a();
/// requires: lower <= upper
TRandI getIntRange(int lower, int upper);
Spells configuration version 2 (effect-based) * Indirect spell effects loading * Json serializer improvements * spell->canBeCastAt do not allow useless cast for any spell * Added proxy caster class for spell-created obstacles * Handle damage from spell-created obstacles inside mechanics * Experimental GameState integration/regression tests * Ignore mod settings and load only "vcmi" mod when running tests * fixed https://bugs.vcmi.eu/view.php?id=2765 (with tests) * Huge improvements of BattleAI regarding spell casts * AI can cast almost any combat spell except TELEPORT, SACRIFICE and obstacle placement spells. * Possible fix for https://bugs.vcmi.eu/view.php?id=1811 * CStack factored out to several classes * [Battle] Allowed RETURN_AFTER_STRIKE effect on server side to be optional * [Battle] Allowed BattleAction have multiple destinations * [Spells] Converted limit|immunity to target condition * [Spells] Use partial configuration reload for backward compatibility handling * [Tests] Started tests for CUnitState * Partial fixes of fire shield effect * [Battle] Do HP calculations in 64 bits * [BattleAI] Use threading for spell cast evaluation * [BattleAI] Made AI be able to evaluate modified turn order (on hypothetical battle state) * Implemented https://bugs.vcmi.eu/view.php?id=2811 * plug rare freeze when hypnotized unit shots vertically * Correctly apply ONLY_MELEE_FIGHT / ONLY_DISTANCE_FIGHT for unit damage, attack & defense * [BattleAI] Try to not waste a cast if battle is actually won already * Extended JsonSerializeFormat API * fixed https://bugs.vcmi.eu/view.php?id=2847 * Any unit effect can be now chained (not only damage like Chain Lightning) ** only damage effect for now actually uses "chainFactor" * Possible quick fix for https://bugs.vcmi.eu/view.php?id=2860
2017-07-20 06:08:49 +02:00
vstd::TRandI64 getInt64Range(int64_t lower, int64_t upper) override;
/// Generates an integer between 0 and upper.
/// requires: 0 <= upper
int nextInt(int upper);
/// requires: lower <= upper
int nextInt(int lower, int upper);
Spells configuration version 2 (effect-based) * Indirect spell effects loading * Json serializer improvements * spell->canBeCastAt do not allow useless cast for any spell * Added proxy caster class for spell-created obstacles * Handle damage from spell-created obstacles inside mechanics * Experimental GameState integration/regression tests * Ignore mod settings and load only "vcmi" mod when running tests * fixed https://bugs.vcmi.eu/view.php?id=2765 (with tests) * Huge improvements of BattleAI regarding spell casts * AI can cast almost any combat spell except TELEPORT, SACRIFICE and obstacle placement spells. * Possible fix for https://bugs.vcmi.eu/view.php?id=1811 * CStack factored out to several classes * [Battle] Allowed RETURN_AFTER_STRIKE effect on server side to be optional * [Battle] Allowed BattleAction have multiple destinations * [Spells] Converted limit|immunity to target condition * [Spells] Use partial configuration reload for backward compatibility handling * [Tests] Started tests for CUnitState * Partial fixes of fire shield effect * [Battle] Do HP calculations in 64 bits * [BattleAI] Use threading for spell cast evaluation * [BattleAI] Made AI be able to evaluate modified turn order (on hypothetical battle state) * Implemented https://bugs.vcmi.eu/view.php?id=2811 * plug rare freeze when hypnotized unit shots vertically * Correctly apply ONLY_MELEE_FIGHT / ONLY_DISTANCE_FIGHT for unit damage, attack & defense * [BattleAI] Try to not waste a cast if battle is actually won already * Extended JsonSerializeFormat API * fixed https://bugs.vcmi.eu/view.php?id=2847 * Any unit effect can be now chained (not only damage like Chain Lightning) ** only damage effect for now actually uses "chainFactor" * Possible quick fix for https://bugs.vcmi.eu/view.php?id=2860
2017-07-20 06:08:49 +02:00
/// Generates an integer between 0 and the maximum value it can hold.
int nextInt();
/// Generate several double/real numbers within the same range.
/// e.g.: auto a = gen.getDoubleRange(4.5,10.2); a(); a(); a();
/// requires: lower <= upper
Spells configuration version 2 (effect-based) * Indirect spell effects loading * Json serializer improvements * spell->canBeCastAt do not allow useless cast for any spell * Added proxy caster class for spell-created obstacles * Handle damage from spell-created obstacles inside mechanics * Experimental GameState integration/regression tests * Ignore mod settings and load only "vcmi" mod when running tests * fixed https://bugs.vcmi.eu/view.php?id=2765 (with tests) * Huge improvements of BattleAI regarding spell casts * AI can cast almost any combat spell except TELEPORT, SACRIFICE and obstacle placement spells. * Possible fix for https://bugs.vcmi.eu/view.php?id=1811 * CStack factored out to several classes * [Battle] Allowed RETURN_AFTER_STRIKE effect on server side to be optional * [Battle] Allowed BattleAction have multiple destinations * [Spells] Converted limit|immunity to target condition * [Spells] Use partial configuration reload for backward compatibility handling * [Tests] Started tests for CUnitState * Partial fixes of fire shield effect * [Battle] Do HP calculations in 64 bits * [BattleAI] Use threading for spell cast evaluation * [BattleAI] Made AI be able to evaluate modified turn order (on hypothetical battle state) * Implemented https://bugs.vcmi.eu/view.php?id=2811 * plug rare freeze when hypnotized unit shots vertically * Correctly apply ONLY_MELEE_FIGHT / ONLY_DISTANCE_FIGHT for unit damage, attack & defense * [BattleAI] Try to not waste a cast if battle is actually won already * Extended JsonSerializeFormat API * fixed https://bugs.vcmi.eu/view.php?id=2847 * Any unit effect can be now chained (not only damage like Chain Lightning) ** only damage effect for now actually uses "chainFactor" * Possible quick fix for https://bugs.vcmi.eu/view.php?id=2860
2017-07-20 06:08:49 +02:00
vstd::TRand getDoubleRange(double lower, double upper) override;
/// Generates a double between 0 and upper.
/// requires: 0 <= upper
double nextDouble(double upper);
/// requires: lower <= upper
double nextDouble(double lower, double upper);
/// Generates a double between 0.0 and 1.0.
double nextDouble();
/// Gets a globally accessible RNG which will be constructed once per thread. For the
/// seed a combination of the thread ID and current time in milliseconds will be used.
static CRandomGenerator & getDefault();
/// Provide method so that this RNG can be used with legacy std:: API
TGenerator & getStdGenerator();
private:
TGenerator rand;
static boost::thread_specific_ptr<CRandomGenerator> defaultRand;
public:
template <typename Handler>
void serialize(Handler & h, const int version)
{
if(h.saving)
{
std::ostringstream stream;
stream << rand;
std::string str = stream.str();
h & str;
}
else
{
std::string str;
h & str;
std::istringstream stream(str);
stream >> rand;
}
}
};
VCMI_LIB_NAMESPACE_END