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Funkin/source/funkin/ui/CoolStatsGraph.hx
2023-01-22 22:25:45 -05:00

161 lines
4.2 KiB
Haxe

package funkin.ui;
import flash.display.Graphics;
import flash.display.Shape;
import flash.display.Sprite;
import flash.text.TextField;
import flash.text.TextFormatAlign;
import flixel.math.FlxMath;
import flixel.system.debug.DebuggerUtil;
import flixel.system.debug.stats.Stats;
import flixel.util.FlxColor;
import flixel.util.FlxDestroyUtil;
/**
* This is a helper function for the stats window to draw a graph with given values.
* SHAMELESSLY STOLEN FROM FLIXEL
* https://github.com/HaxeFlixel/flixel/blob/master/flixel/system/debug/stats/StatsGraph.hx
*/
#if FLX_DEBUG
class CoolStatsGraph extends Sprite
{
static inline var AXIS_COLOR:FlxColor = 0xffffff;
static inline var AXIS_ALPHA:Float = 0.5;
static inline var HISTORY_MAX:Int = 500;
public var minLabel:TextField;
public var curLabel:TextField;
public var maxLabel:TextField;
public var avgLabel:TextField;
public var minValue:Float = FlxMath.MAX_VALUE_FLOAT;
public var maxValue:Float = FlxMath.MIN_VALUE_FLOAT;
public var graphColor:FlxColor;
public var history:Array<Float> = [];
var _axis:Shape;
var _width:Int;
var _height:Int;
var _unit:String;
var _labelWidth:Int;
var _label:String;
public function new(X:Int, Y:Int, Width:Int, Height:Int, GraphColor:FlxColor, Unit:String, LabelWidth:Int = 45, ?Label:String)
{
super();
x = X;
y = Y;
_width = Width - LabelWidth;
_height = Height;
graphColor = GraphColor;
_unit = Unit;
_labelWidth = LabelWidth;
_label = (Label == null) ? "" : Label;
_axis = new Shape();
_axis.x = _labelWidth + 10;
maxLabel = DebuggerUtil.createTextField(0, 0, Stats.LABEL_COLOR, Stats.TEXT_SIZE);
curLabel = DebuggerUtil.createTextField(0, (_height / 2) - (Stats.TEXT_SIZE / 2), graphColor, Stats.TEXT_SIZE);
minLabel = DebuggerUtil.createTextField(0, _height - Stats.TEXT_SIZE, Stats.LABEL_COLOR, Stats.TEXT_SIZE);
avgLabel = DebuggerUtil.createTextField(_labelWidth + 20, (_height / 2) - (Stats.TEXT_SIZE / 2) - 10, Stats.LABEL_COLOR, Stats.TEXT_SIZE);
avgLabel.width = _width;
avgLabel.defaultTextFormat.align = TextFormatAlign.CENTER;
avgLabel.alpha = 0.5;
addChild(_axis);
addChild(maxLabel);
addChild(curLabel);
addChild(minLabel);
addChild(avgLabel);
drawAxes();
}
/**
* Redraws the axes of the graph.
*/
function drawAxes():Void
{
var gfx = _axis.graphics;
gfx.clear();
gfx.lineStyle(1, AXIS_COLOR, AXIS_ALPHA);
// y-Axis
gfx.moveTo(0, 0);
gfx.lineTo(0, _height);
// x-Axis
gfx.moveTo(0, _height);
gfx.lineTo(_width, _height);
}
/**
* Redraws the graph based on the values stored in the history.
*/
function drawGraph():Void
{
var gfx:Graphics = graphics;
gfx.clear();
gfx.lineStyle(1, graphColor, 1);
var inc:Float = _width / (HISTORY_MAX - 1);
var range:Float = Math.max(maxValue - minValue, maxValue * 0.1);
var graphX = _axis.x + 1;
for (i in 0...history.length)
{
var value = (history[i] - minValue) / range;
var pointY = (-value * _height - 1) + _height;
if (i == 0) gfx.moveTo(graphX, _axis.y + pointY);
gfx.lineTo(graphX + (i * inc), pointY);
}
}
public function update(Value:Float):Void
{
history.unshift(Value);
if (history.length > HISTORY_MAX) history.pop();
// Update range
maxValue = Math.max(maxValue, Value);
minValue = Math.min(minValue, Value);
minLabel.text = formatValue(minValue);
curLabel.text = formatValue(Value);
maxLabel.text = formatValue(maxValue);
avgLabel.text = _label + "\nAvg: " + formatValue(average());
drawGraph();
}
function formatValue(value:Float):String
{
return FlxMath.roundDecimal(value, Stats.DECIMALS) + " " + _unit;
}
public function average():Float
{
var sum:Float = 0;
for (value in history)
sum += value;
return sum / history.length;
}
public function destroy():Void
{
_axis = FlxDestroyUtil.removeChild(this, _axis);
minLabel = FlxDestroyUtil.removeChild(this, minLabel);
curLabel = FlxDestroyUtil.removeChild(this, curLabel);
maxLabel = FlxDestroyUtil.removeChild(this, maxLabel);
avgLabel = FlxDestroyUtil.removeChild(this, avgLabel);
history = null;
}
}
#end