55 lines
1.2 KiB
C#
55 lines
1.2 KiB
C#
|
|
using System;
|
|
using System.Linq;
|
|
using OpenRA.Traits;
|
|
using System.Collections.Generic;
|
|
using OpenRA.FileFormats;
|
|
|
|
namespace OpenRA.Traits
|
|
{
|
|
class ScreenShakerInfo : ITraitInfo
|
|
{
|
|
public object Create( Actor self ) { return new ScreenShaker(); }
|
|
}
|
|
|
|
public class ScreenShaker : ITick
|
|
{
|
|
static int ticks = 0;
|
|
static List<Tuple<int, float2, int>> shakeEffects = new List<Tuple<int, float2, int>>();
|
|
|
|
public void Tick (Actor self)
|
|
{
|
|
Game.viewport.Scroll(getScrollOffset());
|
|
shakeEffects.RemoveAll(t => t.a == ticks);
|
|
ticks++;
|
|
}
|
|
|
|
public static void RegisterShakeEffect(int time, float2 position, int intensity)
|
|
{
|
|
shakeEffects.Add(Tuple.New(ticks + time, position, intensity));
|
|
}
|
|
|
|
public float2 getScrollOffset()
|
|
{
|
|
int xFreq = 4;
|
|
int yFreq = 5;
|
|
|
|
return GetIntensity() * new float2(
|
|
(float) Math.Sin((ticks*2*Math.PI)/xFreq) ,
|
|
(float) Math.Cos((ticks*2*Math.PI)/yFreq));
|
|
}
|
|
|
|
public float GetIntensity()
|
|
{
|
|
var cp = Game.viewport.Location
|
|
+ .5f * new float2(Game.viewport.Width, Game.viewport.Height);
|
|
|
|
var intensity = 24 * 24 * 100 * shakeEffects.Sum(
|
|
e => e.c / (e.b - cp).LengthSquared);
|
|
|
|
return Math.Min(intensity, 10);
|
|
}
|
|
|
|
}
|
|
}
|