num_status_obj.js

// Generic wrapper for a status that includes text and a num
// Can be drawn as a number or a bar
// Provides draw, incr, set_num, and get_num
// spec:
//		pos : center pos of text
//		text : Will display "<text> <num>"
//		num : num to start at
//		bar : bool (optional)
//		max : num (required if bar)

var num_status_obj = function(p, spec) {
	
    // obj to return
    var obj = {};

    // --- private variables ---

	var pos = spec.pos;
	var number = spec.num;
	var txt = spec.text;
	var bar = spec.bar || false;
	var max = spec.max;
	var height = 20;
	var max_width = 100; //for the bar, might need to be passed in
	
	var get_obj_text = function() {
		if (bar) {
			return txt;
		}
		else {
            var num_txt = ""+number;
            if (spec.format) {
                num_txt = spec.format(number);
            }
			return txt + " " + num_txt;
		}	
	}
	
	var rect = rectangle(p, { // Really just a text obj
		pos : pos,
		width : 0,
		height : 0,
		text : get_obj_text(),
        text_size : 14,
        text_color: spec.text_color || 255,
	});
	
	// --- private methods
	
	var update = function(n) {

		number = n;

		rect.update_text(get_obj_text());
	};
	var draw_full_rect = function(color) {
			p.fill(color[0], color[1], color[2]);
            //p.strokeWeight(1);
            //p.stroke(0);
			var topy = pos.y - (height / 2);
			var leftx = pos.x + (txt.length * 4);
			p.rect(leftx, topy, max_width, height);
	};
	
    // --- public methods --- 

	obj.draw = function() {
        rect.draw();
		// Draw the bar separately, if appropriate
		if (bar) {
	        p.noStroke();
			// Draw empty rectangle first
			draw_full_rect([255, 255, 255]);
			
			// Then draw mutation status bar
	        p.fill(150);
			
			var topy = pos.y - (height / 2);
			var leftx = pos.x + (txt.length * 4);
			var rect_width = (number / max) * max_width;
			rect_width = rect_width > max_width ? max_width : rect_width;
            p.rectMode(p.CORNER);
			p.rect(leftx, topy, rect_width, height);
			
			p.fill(255)
		}
	};
	
	// SHOULD ONLY BE CALLED IF bar IS TRUE
	// Draws a full bar of the specified color
	// color : 3 element rgb array
	obj.draw_color = function(color) {
		draw_full_rect(color);
	};
	
	obj.incr = function(n) {
		update(number + n);
	};
	
	// Set and get

    obj.set_max = function(m) {
        max = m;
    };
	
	obj.set_num = function(n) {
		update(n);
	};
	
	obj.get_num = function() {
		return number;
	};
	
    return obj;
};