source code ccp

#include "testApp.h"

//--------------------------------------------------------------

void testApp::setup(){

    ofLog(OF_LOG_NOTICE, "setup() nmnt");

    ofSetFrameRate (20);

    ofSetWindowTitle("lotka volterre teacher student model");

    cout << "lotka volterre teacher student model.." << endl;

    //uni.loadImage("uni.png"); // loads image

    //uni.setAnchorPercent(0.5,0.5); // sets picture in middle of screen

    //uni.draw(mouseX, mouseY); // uni

        helpMe=true;

        startLearning = false;

        onOff=0;

        blocks=0;

        showBlocks = false;

        oldNumPrey = 80;

        oldNumPredator = 5;

        caryingCapacityPrey = 300;

        caryingCapacityPredator = 2000;

        birthRatePrey = 0.4; //0.4

        deathRatePredator = 0.2; //0.2

        predationRate = 0.0050; //0.005

        predationEfficiency = 0.2; //0.2

        inflowPrey=0;

        inflowPreyOnce=0;

        inflowPredator=0;

        inflowPredatorOnce=0;

        leidenImage.loadImage("uni.jpg");

}

//--------------------------------------------------------------

void testApp::update(){

    if (onOff%2==0) {

        onOff=0;

        startLearning = false;

    }

    if (blocks%2==0) {

        blocks=0;

        showBlocks = false;

    }

    counter = counter + 0.033f;

    if (startLearning == true){

    deltaPrey = birthRatePrey* (1-(oldNumPrey/caryingCapacityPrey))* oldNumPrey  - predationRate * oldNumPredator * oldNumPrey + inflowPrey + inflowPreyOnce;

    deltaPredator = predationEfficiency*predationRate*oldNumPrey*oldNumPredator * (1-(oldNumPredator/caryingCapacityPredator)) - deathRatePredator * oldNumPredator + inflowPredator+inflowPredatorOnce;

    inflowPredatorOnce = 0;

    inflowPreyOnce = 0;

    newNumPrey = oldNumPrey + deltaPrey;

    newNumPredator = oldNumPredator + deltaPredator;

        if (newNumPrey < 0 ){

        newNumPrey=0;

        newNumPredator--;

        }

        if (newNumPrey > 500 ){

        newNumPrey=500;

        }

        if (newNumPredator > 500 ){

        newNumPredator=500;

        }

        if (newNumPredator < 0 ){

    newNumPredator=0;

    }

    oldNumPrey = newNumPrey;

    oldNumPredator = newNumPredator;

}

}

//--------------------------------------------------------------

void testApp::draw(){

    ofBackground(152,201,212);

    //uni.draw(400, 400); // uni

    //leidenImage.draw(0,0);

    if (startLearning == false){

    ofSetColor(100,255,134); //set circle white

    ofCircle(341, 300, oldNumPrey); // prey X

    ofSetColor(255,0,0);

    ofCircle(682, 300, oldNumPredator); // predator Y

    }

    if (blocks == 0){

        ofSetColor(0,255,0); //set circle white

        ofCircle(341, 300, newNumPrey); // prey X

    }

    if (blocks == 1 ){

        for (int i = 0; i < newNumPrey; i++){

            ofSetColor((int)ofRandom(0,255),(int)ofRandom(0,255),(int)ofRandom(0,255));

            ofRect(ofRandom(100,500),ofRandom(100,500),ofRandom(10,20),ofRandom(10,20));

        }

}

    ofSetColor(255,0,0);

    ofCircle(682, 300, newNumPredator); // predator Y

    ofSetHexColor(0x000000);

ofDrawBitmapString( "lotka volterre teacher student model..", 20,20);

    ofSetHexColor(0x000000);

ofDrawBitmapString(" Teachers ", 670,210);

    ofSetHexColor(0x000000);

ofDrawBitmapString(" Students ", 20,410);

    if(helpMe==false){

    ofSetHexColor(0x000000);

ofDrawBitmapString(" Press h for help ", 20,50);

    ofSetHexColor(0x000000);

ofDrawBitmapString(" deltaStudent = admissionRateStudent * (1-(oldNumStudents/tables for students))* oldNumStudent", 20,580);

ofSetHexColor(0x000000);

ofDrawBitmapString("                - predationRate * oldNumPredator * oldNumPrey + inflowPrey + inflowPreyOnce;", 20,600);

ofSetHexColor(0x000000);

ofDrawBitmapString(" deltaTeacher = vakationefficeny*graduationrate*oldNumTeachers*oldNumStudents * (1-(oldNumTeachers/rooms for teachers)) ", 20,660);

    ofSetHexColor(0x000000);

ofDrawBitmapString("                - fireRateTeacher * oldNumTeacher + inflowTeachers + inflowTeachersOnce;", 20,680);

ofSetHexColor(0x000000);

ofDrawBitmapString("lowercast for up - Uppercast for down ( +/- .... )", 900, 20);

ofSetHexColor(0x000000);

ofDrawBitmapString(" => admission-rate", 900, 60);

ofSetHexColor(0x000000);

ofDrawBitmapString(ofToString (birthRatePrey), 800, 60);

ofSetHexColor(0x000000);

ofDrawBitmapString(" => graduation-rate", 900, 80);

    ofSetHexColor(0x000000);

ofDrawBitmapString(ofToString (predationRate), 800, 80);

ofSetHexColor(0x000000);

ofDrawBitmapString(" => fire-rate", 900, 100);

ofSetHexColor(0x000000);

ofDrawBitmapString(ofToString (deathRatePredator), 800, 100);

ofSetHexColor(0x000000);

ofDrawBitmapString(" => vacation", 900, 120);

ofSetHexColor(0x000000);

ofDrawBitmapString(ofToString (predationEfficiency), 800, 120);

ofSetHexColor(0x000000);

ofDrawBitmapString(" => rooms ", 900, 160);

ofSetHexColor(0x000000);

ofDrawBitmapString(ofToString (caryingCapacityPredator), 800, 160);

ofSetHexColor(0x000000);

ofDrawBitmapString(" => tables", 900, 140);

ofSetHexColor(0x000000);

ofDrawBitmapString(ofToString (caryingCapacityPrey), 800, 140);

    }

    if(helpMe==true){

    ofSetHexColor(0x000000);

ofDrawBitmapString(" Press shift h to hide help ", 20,50);

//----text teachers---

ofSetHexColor(0x000000);

ofDrawBitmapString("a => plus one teachers every new frame (initial value is 0)", 700, 580);

ofSetHexColor(0x000000);

ofDrawBitmapString("A => plus one teachers once", 700, 600);

ofSetHexColor(0x000000);

ofDrawBitmapString("z => minus one teacher every new frame (initial value is 0)", 700, 620);

ofSetHexColor(0x000000);

ofDrawBitmapString("Z => minus one teachers once", 700, 640);

ofSetHexColor(0x000000);

ofDrawBitmapString("q => random value beween 10 and -10 every new frame (initial value is 0)", 700, 660);

ofSetHexColor(0x000000);

ofDrawBitmapString("Q => adds a random value beween 10 and -10 once", 700, 680);

ofSetHexColor(0x000000);

ofDrawBitmapString("1 => reset the addition of teachers to 0", 700, 700);

//--- text Students----

ofSetHexColor(0x000000);

ofDrawBitmapString("s => chuck +1 freshman in there every new frame (initial value is 0)", 20, 580);

ofSetHexColor(0x000000);

ofDrawBitmapString("S => lets have these rotten few have a go + 10 once", 20, 600);

ofSetHexColor(0x000000);

ofDrawBitmapString("x => flunk +1 student every new frame (initial value is 0)", 20, 620);

ofSetHexColor(0x000000);

ofDrawBitmapString("X => oohh, you let 10 student flunks..", 20, 640);

ofSetHexColor(0x000000);

ofDrawBitmapString("w => adds beween 10 and -10 students every frame(initial value is 0)", 20, 660);

ofSetHexColor(0x000000);

ofDrawBitmapString("W => adds beween 10 and -10 students once (initial value is 0)", 20, 680);

    ofSetHexColor(0x000000);

ofDrawBitmapString("2 => reset the addition of students to 0", 20, 700);

//-- parameters

ofSetHexColor(0x000000);

ofDrawBitmapString("lowercast for up - Uppercast for down ( +/- .... )", 900, 20);

ofSetHexColor(0x000000);

ofDrawBitmapString("b => admission-rate (+/- .... )", 900, 60);

ofSetHexColor(0x000000);

ofDrawBitmapString(ofToString (birthRatePrey), 800, 60);

ofSetHexColor(0x000000);

ofDrawBitmapString("g => graduation-rate (+/- .... )", 900, 80);

    ofSetHexColor(0x000000);

ofDrawBitmapString(ofToString (predationRate), 800, 80);

ofSetHexColor(0x000000);

ofDrawBitmapString("f => sorry, we have to let you go..-rate (+/- .... )", 900, 100);

ofSetHexColor(0x000000);

ofDrawBitmapString(ofToString (deathRatePredator), 800, 100);

ofSetHexColor(0x000000);

ofDrawBitmapString("v => vacation (+/- .... )", 900, 120);

ofSetHexColor(0x000000);

ofDrawBitmapString(ofToString (predationEfficiency), 800, 120);

ofSetHexColor(0x000000);

ofDrawBitmapString("n => normal... ", 900, 180);

ofSetHexColor(0x000000);

ofDrawBitmapString("r => rooms (+/- .... ) ", 900, 160);

ofSetHexColor(0x000000);

ofDrawBitmapString(ofToString (caryingCapacityPredator), 800, 160);

ofSetHexColor(0x000000);

ofDrawBitmapString("t => tables (+/- .... )", 900, 140);

ofSetHexColor(0x000000);

ofDrawBitmapString(ofToString (caryingCapacityPrey), 800, 140);

    }

}

//--------------------------------------------------------------

void testApp::keyPressed(int key){

cout << key << endl;

cout << caryingCapacityPrey << endl;

if (key==104) helpMe=true; //1 reset

if (key==72) helpMe=false; //1 reset

//start and stop time

if (key==32) {

    onOff++;

    startLearning = true;

}

// -- show blocks with enter

if (key==13) {

    blocks++;

    showBlocks = true;

}

// --- teacher inflow --

    if (key==49) inflowPredator=0; //1 reset

    if (key==97) inflowPredator++; //a

    if (key==65) inflowPredatorOnce++; //shift A

    if (key==122) inflowPredator--; //z

    if (key==90) inflowPredatorOnce--; //Z

    if (key==113) inflowPredator = inflowPredator + rand () %11 - rand () %11; //q

    if (key==81) inflowPredatorOnce = inflowPredator + rand () %11 - rand () %11; //Q

// --- Student inflow --

    if (key==50) inflowPrey=0; //2

    if (key==115) inflowPrey++; //s

    if (key==83) inflowPreyOnce++; //shift s

    if (key==120) inflowPrey--; //x

    if (key==88) inflowPreyOnce--; //shift x

    if (key==119) inflowPrey = inflowPrey + rand () %21 - rand () %21; //w

    if (key==87) inflowPreyOnce = inflowPrey + rand () %21 - rand () %21; //W

// --- parameter tweeking --

    if (key==116) caryingCapacityPrey = caryingCapacityPrey + 10; //tables t

    if (key==84) caryingCapacityPrey = caryingCapacityPrey - 10; //tables T

    if (key==114) caryingCapacityPredator = caryingCapacityPredator + 10; //rooms r

    if (key==82) caryingCapacityPredator = caryingCapacityPredator - 10; //rooms R

    if (key==98) birthRatePrey = birthRatePrey + 0.05; //b

    if (key==66) birthRatePrey = birthRatePrey - 0.05; //B

    if (key==102) deathRatePredator = deathRatePredator + 0.05; //f

    if (key==70) deathRatePredator = deathRatePredator - 0.05; //F

    if (key==103) predationRate = predationRate + 0.00050; //graduation g

    if (key==71) predationRate = predationRate - 0.00050; //graduation G

    if (key==118) predationEfficiency = predationEfficiency + 0.05; //vacation v

    if (key==86) predationEfficiency = predationEfficiency - 0.05; //vacation V

//---normal parameters (key n)--

    if (key==110){

        caryingCapacityPrey = 300;

        caryingCapacityPredator = 2000;

        birthRatePrey = 0.4; //0.4

        deathRatePredator = 0.2; //0.2

        predationRate = 0.0050; //0.005

        predationEfficiency = 0.2; //0.2

     }

}

//--------------------------------------------------------------

void testApp::keyReleased(int key){

}

//--------------------------------------------------------------

void testApp::mouseMoved(int x, int y){

}

//--------------------------------------------------------------

void testApp::mouseDragged(int x, int y, int button){

}

//--------------------------------------------------------------

void testApp::mousePressed(int x, int y, int button){

}

//--------------------------------------------------------------

void testApp::mouseReleased(int x, int y, int button){

}

//--------------------------------------------------------------

void testApp::windowResized(int w, int h){

}

//--------------------------------------------------------------

void testApp::gotMessage(ofMessage msg){

}

//--------------------------------------------------------------

void testApp::dragEvent(ofDragInfo dragInfo){

}