/* built with Studio Sketchpad: 
 *   https://sketchpad.cc
 * 
 * observe the evolution of this sketch: 
 *   https://studio.sketchpad.cc/sp/pad/view/ro.M1jUuR9HRUy/rev.1146
 * 
 * authors: 
 *   Troy

 * license (unless otherwise specified): 
 *   creative commons attribution-share alike 3.0 license.
 *   https://creativecommons.org/licenses/by-sa/3.0/ 
 */ 



int numOptions = 6;
int[][] originalNodePositions = new int[numOptions][2];
int[][] nodePositions = new int[numOptions][2];
int nodeRadius = 50;

String[] nodeNames = {
    "Home",
    "Test"
};

int[][][] iconLines = {
    {
        {-10, 10, 18, 0},
        {-10, 8, 0, -13},
        {10, 8, 0, -13},
        {-10, -5, 10, -10},
        {10, -5, -10, -10},
        {-10, -5, 18, 0}
    },
    {
        {-10, -10, 18, 0},
        {-10, -10, 10, 15},
        {10, -10, -10, 15}
    }
};
//do, pos
float[][] anim = new float[iconLines.length][2];
for (float[] animInfo : anim) {
    animInfo = {0,0};
}

void setup() {
    size(300, 300); 
    smooth();
    frameRate(30);
    
    originalNodePositions[0][0] = width/2;
    originalNodePositions[0][1] = height/2;
    for (int i=0; i < numOptions-1; i++) {
        int xPos = cos(2*PI*i/(numOptions-1) - PI/2) * 100 + width/2;
        int yPos = sin(2*PI*i/(numOptions-1) - PI/2) * 100 + height/2;
        originalNodePositions[i+1][0] = xPos;
        originalNodePositions[i+1][1] = yPos;
    }
}

void mousePressed() {
    for (int i=0; i < numOptions; i++) {
        int[] pos = nodePositions[i];
        if (pow(mouseX-pos[0], 2) + pow(mouseY-pos[1], 2) < pow(nodeRadius/2, 2)) {
            if (i < nodeNames.length){
                alert(nodeNames[i]+" node was pressed");
            }else{
                alert("Unnamed node was pressed");
            }
        }
    }
}

void draw() {
    background(255);
    
    for (float[] animInfo : anim){
        if (animInfo[0] > 0) {
            if (animInfo[1] < 1) {
                animInfo[1] = min(animInfo[1] + 0.2, 1);
            }
            else {
                animInfo[1] = 1;
                animInfo[0] = 0;
            }
        }
        else if (animInfo[0] < 0) {
            if (animInfo[1] > 0) {
                animInfo[1] = max(animInfo[1] - 0.2, 0);
            }
            else {
                animInfo[1] = 0;
                animInfo[0] = 0;
            }
        }
        animInfo[0] = -1;
    }
    
    stroke(215, 232, 239);
    fill(92, 173, 194);
    
    for (int i=0; i < numOptions; i++) {
        int[] pos = originalNodePositions[i];
        float xOff = mouseX-pos[0];
        float yOff = mouseY-pos[1];
        float dist = sqrt(pow(xOff, 2) + pow(yOff, 2));
        nodePositions[i][0] = pos[0] + xOff*min(10/dist, 1);
        nodePositions[i][1] = pos[1] + yOff*min(10/dist, 1);
    }
    
    strokeWeight(5);
    for (int i=0; i < numOptions; i++) {
        for (int j=i+1; j < numOptions; j++) {
            line(nodePositions[i][0], nodePositions[i][1], nodePositions[j][0], nodePositions[j][1]);
        }
    }
    
    for (int i=0; i < numOptions; i++) {
        int[] pos = nodePositions[i];
        if (pow(mouseX-pos[0], 2) + pow(mouseY-pos[1], 2) < pow(nodeRadius/2, 2)) {
            strokeWeight(8);
            if (i < anim.length) {
                anim[i][0] = 1;
            }
        }
        else {
            strokeWeight(5);
        }
        fill(92, 173, 194);
        ellipse(pos[0], pos[1], nodeRadius, nodeRadius);
    }
    
    for (int i=0; i < iconLines.length; i++) {
        for (int[] pos : iconLines[i]) {
            stroke(215, 232, 239);
            strokeWeight(2);
            line(pos[0] + nodePositions[i][0], pos[1] + nodePositions[i][1], pos[0] + nodePositions[i][0] + pos[2], pos[1] + nodePositions[i][1] + pos[3]);
            if (anim[i][1] > 0) {
                stroke(0,0,0);
                strokeWeight(2);
                line(pos[0] + nodePositions[i][0], pos[1] + nodePositions[i][1], pos[0] + nodePositions[i][0] + pos[2]*anim[i][1], pos[1] + nodePositions[i][1] + pos[3]*anim[i][1]);
            }
        }
    }
    
    fill(0,0,0);
    textSize(18);
    for (int i=0; i < numOptions; i++) {
        int[] pos = nodePositions[i];
        if (pow(mouseX-pos[0], 2) + pow(mouseY-pos[1], 2) < pow(nodeRadius/2, 2)) {
            if (i < nodeNames.length){
                text(nodeNames[i], pos[0]-textWidth(nodeNames[i])/2, pos[1]+nodeRadius/2+16);
            }else{
                text("Unnamed", pos[0]-textWidth("Unnamed")/2, pos[1]+nodeRadius/2+16);
            }
        }
    }
    textSize(14);
    //text(anim, 0, 10);
}