Files
OpenRA/OpenRA.Game/Widgets/PowerBinWidget.cs
2010-07-14 19:00:03 +12:00

98 lines
3.6 KiB
C#

#region Copyright & License Information
/*
* Copyright 2007,2009,2010 Chris Forbes, Robert Pepperell, Matthew Bowra-Dean, Paul Chote, Alli Witheford.
* This file is part of OpenRA.
*
* OpenRA is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OpenRA is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenRA. If not, see <http://www.gnu.org/licenses/>.
*/
#endregion
using System;
using System.Drawing;
using OpenRA.Graphics;
using OpenRA.Traits;
namespace OpenRA.Widgets
{
public class PowerBinWidget : Widget
{
// Power bar
static float2 powerOrigin = new float2(42, 205); // Relative to radarOrigin
static Size powerSize = new Size(138, 5);
float? lastPowerProvidedPos;
float? lastPowerDrainedPos;
string powerCollection;
public override void DrawInner(World world)
{
powerCollection = "power-" + world.LocalPlayer.Country.Race;
var resources = world.LocalPlayer.PlayerActor.traits.Get<PlayerResources>();
// Nothing to draw
if (resources.PowerProvided == 0
&& resources.PowerDrained == 0)
return;
var renderer = Game.chrome.renderer;
var lineRenderer = Game.chrome.lineRenderer;
var rgbaRenderer = renderer.RgbaSpriteRenderer;
// Draw bar horizontally
var barStart = powerOrigin + RadarBinWidget.radarOrigin;
var barEnd = barStart + new float2(powerSize.Width, 0);
float powerScaleBy = 100;
var maxPower = Math.Max(resources.PowerProvided, resources.PowerDrained);
while (maxPower >= powerScaleBy) powerScaleBy *= 2;
// Current power supply
var powerLevelTemp = barStart.X + (barEnd.X - barStart.X) * (resources.PowerProvided / powerScaleBy);
lastPowerProvidedPos = float2.Lerp(lastPowerProvidedPos.GetValueOrDefault(powerLevelTemp), powerLevelTemp, .3f);
float2 powerLevel = new float2(lastPowerProvidedPos.Value, barStart.Y);
var color = Color.LimeGreen;
if (resources.GetPowerState() == PowerState.Low)
color = Color.Orange;
if (resources.GetPowerState() == PowerState.Critical)
color = Color.Red;
var colorDark = Graphics.Util.Lerp(0.25f, color, Color.Black);
for (int i = 0; i < powerSize.Height; i++)
{
color = (i - 1 < powerSize.Height / 2) ? color : colorDark;
float2 leftOffset = new float2(0, i);
float2 rightOffset = new float2(0, i);
// Indent corners
if ((i == 0 || i == powerSize.Height - 1) && powerLevel.X - barStart.X > 1)
{
leftOffset.X += 1;
rightOffset.X -= 1;
}
lineRenderer.DrawLine(Game.viewport.Location + barStart + leftOffset, Game.viewport.Location + powerLevel + rightOffset, color, color);
}
lineRenderer.Flush();
// Power usage indicator
var indicator = ChromeProvider.GetImage(renderer, powerCollection, "power-indicator");
var powerDrainedTemp = barStart.X + (barEnd.X - barStart.X) * (resources.PowerDrained / powerScaleBy);
lastPowerDrainedPos = float2.Lerp(lastPowerDrainedPos.GetValueOrDefault(powerDrainedTemp), powerDrainedTemp, .3f);
float2 powerDrainLevel = new float2(lastPowerDrainedPos.Value - indicator.size.X / 2, barStart.Y - 1);
rgbaRenderer.DrawSprite(indicator, powerDrainLevel, "chrome");
rgbaRenderer.Flush();
}
}
}