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hard edge-of-table again

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This commit is contained in:
Chris Forbes
2010-03-30 21:37:21 +13:00
parent 1c408f635a
commit 6423c04983
1 changed files with 18 additions and 3 deletions
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21
OpenRA.Game/Traits/World/Shroud.cs
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@@ -56,6 +56,21 @@ namespace OpenRA.Traits
class ActorVisibility { public int range; public int2[] vis; }
Dictionary<Actor, ActorVisibility> vis = new Dictionary<Actor, ActorVisibility>();
static IEnumerable<int2> FindVisibleTiles(World world, int2 a, int r)
{
var min = a - new int2(r, r);
var max = a + new int2(r, r);
if (min.X < world.Map.XOffset - 1) min.X = world.Map.XOffset - 1;
if (min.Y < world.Map.YOffset - 1) min.Y = world.Map.YOffset - 1;
if (max.X > world.Map.XOffset + world.Map.Width) max.X = world.Map.XOffset + world.Map.Width;
if (max.Y > world.Map.YOffset + world.Map.Height) max.Y = world.Map.YOffset + world.Map.Height;
for (var j = min.Y; j <= max.Y; j++)
for (var i = min.X; i <= max.X; i++)
if (r * r >= (new int2(i, j) - a).LengthSquared)
yield return new int2(i, j);
}
void AddActor(Actor a)
{
if (a.Owner == null || a.Owner != a.Owner.World.LocalPlayer) return;
@@ -68,7 +83,7 @@ namespace OpenRA.Traits
foreach (var p in v.vis)
{
foreach (var q in a.World.FindTilesInCircle(p, v.range))
foreach (var q in FindVisibleTiles(a.World, p, v.range))
{
++visibleCells[q.X, q.Y];
exploredCells[q.X, q.Y] = true;
@@ -107,7 +122,7 @@ namespace OpenRA.Traits
if (!vis.TryGetValue(a, out v)) return;
foreach (var p in v.vis)
foreach (var q in a.World.FindTilesInCircle(p, v.range))
foreach (var q in FindVisibleTiles(a.World, p, v.range))
--visibleCells[q.X, q.Y];
vis.Remove(a);
@@ -123,7 +138,7 @@ namespace OpenRA.Traits
public void Explore(World world, int2 center, int range)
{
foreach (var q in world.FindTilesInCircle(center, range))
foreach (var q in FindVisibleTiles(world, center, range))
exploredCells[q.X, q.Y] = true;
var box = new Rectangle(center.X - range, center.Y - range, 2 * range + 1, 2 * range + 1);