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//
// ShakeAnimation.cs
//
// Author:
// Jean-Philippe Bruyère <jp.bruyere@hotmail.com>
//
// Copyright (c) 2015 jp
//
// This program 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.
//
// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
using System;
namespace vke
{
public class ShakeAnimation : Animation
{
const float stepMin = 0.001f, stepMax = 0.005f;
bool rising = true;
public float LowBound;
public float HighBound;
#region CTOR
public ShakeAnimation(
Object instance,
string _propertyName,
float lowBound, float highBound)
: base(instance, _propertyName)
{
LowBound = Math.Min (lowBound, highBound);
HighBound = Math.Max (lowBound, highBound);
float value = getValue ();
if (value > HighBound)
rising = false;
}
#endregion
public override void Process ()
{
float value = getValue ();
float step = stepMin + (float)random.NextDouble () * stepMax;
if (rising) {
value += step;
if (value > HighBound) {
value = HighBound;
rising = false;
}
} else {
value -= step;
if (value < LowBound) {
value = LowBound;
rising = true;
} else if (value > HighBound)
value -= step * 10f;
}
setValue (value);
}
}
}
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