Month: October 2021

// this program draws a 24/hour abacus that keeps track of day and time. 
// each row of the abacus represents a different time-telling parameter:
var rowHeight = [-140, -74, -8, 58, 125];	//  [month, day, hr, min, sec]
var rowColor;
var beadw = 7;			// width of beads 
// arrays will be filled with bead objects:
var monthBeads = [];
var dayBeads = [];
var hrBeads = [];
var minBeads = [];
var secBeads = [];
var resetMonth = [];
var resetDay = [];
var resetHr = [];
var resetMin = [];
var resetSec = [];
var allRows = [monthBeads, dayBeads, hrBeads, minBeads, secBeads];


function setup() {
    createCanvas(480, 480);
    background(220);
    rectMode(CENTER);
    
    rowColor = [color(145, 110, 205), 		// [month
				color(200, 140, 205), 		//  day
				color(145, 140, 255), 		//  hour
				color(145, 185, 215), 		//  minute
				color(145, 200, 130)];		//  second]

	// populate monthBeads array with 12 beads:
	for (i=0; i<12; i++) {							
		monthBeads[i] = {x: beadw*i, y: rowHeight[0]}
		arrayCopy(monthBeads, resetMonth);
	}
	// populate dayBeads array with 31 beads:
	for (i=0; i<31; i++) {								
		dayBeads[i] = {x: beadw*i, y: rowHeight[1]}
		arrayCopy(dayBeads, resetDay);
	}
	// populate hrBeads array with 24 beads:
	for (i=0; i<24; i++) {
		hrBeads[i] = {x: beadw*i, y: rowHeight[2]}
		arrayCopy(hrBeads, resetHr);
	}
	// populate minBeads array with 30 beads:
	for (i=0; i<30; i++) {
		minBeads[i] = {x: beadw*i, y: rowHeight[3]}
		arrayCopy(minBeads, resetMin);
	}
	// populate secBeads array with 30 beads:
	for (i=0; i<30; i++) {
		secBeads[i] = {x: beadw*i, y: rowHeight[4]}
		arrayCopy(secBeads, resetSec);
	}
}

function draw() {
	background(220);
	
	//center canvas
    translate(width/2, height/2);

    // draw frame and rows of abacus
	drawAbacus();
	
	// draw all of the beads using the array for their row:
	for (j=0; j<allRows.length; j++) {
		setBeads(allRows[j]);
	}
	
	// check the time and move the beads accordingly:
	moveBeads(monthBeads, month(), 0, resetMonth);
	moveBeads(dayBeads, day(), 1, resetDay);
	moveBeads(hrBeads, hour(), 2, resetHr);
	moveBeads(minBeads, minute(), 3, resetMin);
	moveBeads(secBeads, second(), 4, resetSec);	
	//noLoop();
}

//Draws the frame of the abacus:
function drawAbacus() {
	fill(80, 55, 30);
	//base:
    quad(-195,190, 195,190, 220,215, -220,215);
    quad(-195,190, 195,190, 200,200, -200,200);	
    quad(-200,200, 200,200, 220,220, -220,220);	
	//left post:
    quad(-190,-200, -185,-210, -192,-210, -199,-200);
    quad(-190,200, -185,190, -185,-210, -190,-200);
    rect(-195, 0, 7, 400);
	//right post:
    quad(190,-200, 185,-210, 192,-210, 199,-200);
    quad(190,200, 185,190, 185,-210, 190,-200);
    rect(195, 0, 7, 400);
    //rows for beads:
    for (i=0; i<rowHeight.length; i++) {
        rect(0, rowHeight[i], 375, 5);
    }
	//labels:
	textSize(16);
	textFont('monospace');
	fill(0);
    text('month', -181, rowHeight[0]+28);
    text('day', -181, rowHeight[1]+28);
    text('hour', -181, rowHeight[2]+28);
    text('minute', -181, rowHeight[3]+28);
    text('second', -181, rowHeight[4]+28);
}


// draws all of the beads into their rows
function setBeads(beadArray) {
    fill(rowColor[j]);				// color taken from for loop in draw function
    strokeWeight(1.5);
	for (i=0; i<beadArray.length; i++) {		
		if (beadArray.length == 31) { ellipse(beadArray[i].x-30, beadArray[i].y, beadw, 30) }
	    else if (beadArray.length == 30) { ellipse(beadArray[i].x-23, beadArray[i].y, beadw, 30) }
	    else if (beadArray.length == 24) { ellipse(beadArray[i].x+19, beadArray[i].y, beadw, 30) }
	    else if (beadArray.length == 12) { ellipse(beadArray[i].x+103, beadArray[i].y, beadw, 30) }        
	}
}

// checks time and moves the corresponding beads:
function moveBeads(row, func, ind, rowReset) {
	var dist;
	if (row.length == 12) {dist = 283 }		//different distances based on number of beads in the row
	if (row.length == 31) {dist = 150 }
	if (row.length == 24) {dist = 199 }
	if (row.length == 30) {dist = 157 }
	for (i=0; i<func; i++) {
		// the minutes and seconds beads will move every 2x they are passed bc it looks better like that:
		if (dist == 157) {
			row[i/2] = {x: beadw*i/2-dist, y: rowHeight[ind]}
		} else {						
		    row[i] = {x: beadw*i-dist, y: rowHeight[ind]}
		}
		// february has 28 days:
		if (func == 28 & row.length == 31 && month()==2) { resetBeads(rowReset, monthBeads) }
		// 30 days has september, april, june, and november:
		if (func == 30 && row.length == 31 && month()==9) { resetBeads(rowReset, monthBeads) }
		if (func == 30 && row.length == 31 && month()==4) { resetBeads(rowReset, monthBeads) }
		if (func == 30 && row.length == 31 && month()==6) { resetBeads(rowReset, monthBeads) }
		if (func == 30 && row.length == 31 && month()==11) { resetBeads(rowReset, monthBeads) }

	}
	// once the time parameter resets to 0, so do the beads:
	if (func == 0) { resetBeads(rowReset, row) }
}
			
// sets the beads back to their original position, by row:
function resetBeads(rowReset, row) {
    arrayCopy(rowReset, row);

}