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/*
* Copyright 2009,2011,2012 Reality Jockey, Ltd.
* info@rjdj.me
* http://rjdj.me/
*
* This file is part of ZenGarden.
*
* ZenGarden 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 3 of the License, or
* (at your option) any later version.
*
* ZenGarden 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 ZenGarden. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "MessageRandom.h"
MessageObject *MessageRandom::newObject(PdMessage *initMessage, PdGraph *graph) {
return new MessageRandom(initMessage, graph);
}
MessageRandom::MessageRandom(PdMessage *initMessage, PdGraph *graph) : MessageObject(2, 1, graph) {
max_inc = initMessage->isFloat(0) ? ((int) initMessage->getFloat(0))-1 : 1;
twister = new MTRand();
}
MessageRandom::~MessageRandom() {
delete twister;
}
void MessageRandom::processMessage(int inletIndex, PdMessage *message) {
switch (inletIndex) {
case 0: {
switch (message->getType(0)) {
case SYMBOL: {
if (message->isSymbol(0, "seed") && message->isFloat(1)) {
twister->seed((int) message->getFloat(1)); // reset the seed
}
break;
}
case BANG: {
PdMessage *outgoingMessage = PD_MESSAGE_ON_STACK(1);
outgoingMessage->initWithTimestampAndFloat(message->getTimestamp(), (float) twister->randInt(max_inc));
sendMessage(0, outgoingMessage);
break;
}
default: break;
}
break;
}
case 1: {
if (message->isFloat(0)) {
max_inc = static_cast<int>(fmaxf(message->getFloat(0) - 1.0f, 0.0f));
}
break;
}
default: break; // ERROR!
}
}