remove rand(), random_shuffle()

Classes/gframe/client_field.cpp

@@ -47,6 +47,7 @@ ClientField::ClientField() {
 		mzone[p].resize(7, 0);
 		szone[p].resize(8, 0);
 	}
+	rnd.reset(std::random_device()());
 }
 void ClientField::Clear() {
 	for(int i = 0; i < 2; ++i) {
@@ -426,7 +427,7 @@ void ClientField::ShowSelectCard(bool buttonok, bool chain) {
 			}
 		}
 		if(has_card_in_grave) {
-			std::random_shuffle(selectable_cards.begin(), selectable_cards.end());
+			rnd.shuffle_vector(selectable_cards);
 		}
 	}
 	int startpos;

Classes/gframe/client_field.h

@@ -2,6 +2,7 @@
 #define CLIENT_FIELD_H
 
 #include "config.h"
+#include "../ocgcore/mtrandom.h"
 #include <vector>
 #include <set>
 #include <map>
@@ -87,6 +88,7 @@ public:
 	bool deck_reversed;
 	bool conti_selecting;
 	bool cant_check_grave;
+	mt19937 rnd;
 
 	ClientField();
 	void Clear();

Classes/gframe/duelclient.cpp

@@ -2180,7 +2180,7 @@ int DuelClient::ClientAnalyze(char * msg, unsigned int len) {
 			mainGame->soundManager->PlaySoundEffect(SoundManager::SFX::SHUFFLE);
 			for (int i = 0; i < 5; ++i) {
 				for (auto cit = mainGame->dField.deck[player].begin(); cit != mainGame->dField.deck[player].end(); ++cit) {
-					(*cit)->dPos = irr::core::vector3df(rand() * 0.4f / RAND_MAX - 0.2f, 0, 0);
+					(*cit)->dPos = irr::core::vector3df(rnd.rand() * 0.4f / rnd.rand_max - 0.2f, 0, 0);
 					(*cit)->dRot = irr::core::vector3df(0, 0, 0);
 					(*cit)->is_moving = true;
 					(*cit)->aniFrame = 3;
@@ -2252,7 +2252,7 @@ int DuelClient::ClientAnalyze(char * msg, unsigned int len) {
 			for (int i = 0; i < 5; ++i) {
 				for (auto cit = mainGame->dField.extra[player].begin(); cit != mainGame->dField.extra[player].end(); ++cit) {
 					if(!((*cit)->position & POS_FACEUP)) {
-						(*cit)->dPos = irr::core::vector3df(rand() * 0.4f / RAND_MAX - 0.2f, 0, 0);
+						(*cit)->dPos = irr::core::vector3df(rnd.rand() * 0.4f / rnd.rand_max - 0.2f, 0, 0);
 						(*cit)->dRot = irr::core::vector3df(0, 0, 0);
 						(*cit)->is_moving = true;
 						(*cit)->aniFrame = 3;