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some more locking into map borders

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This commit is contained in:
Paolo Chiodi
2010-09-04 14:26:31 +02:00
committed by Paul Chote
parent 43aa8812b3
commit 2945838eef
3 changed files with 39 additions and 27 deletions
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40
OpenRA.Game/Graphics/Viewport.cs
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@@ -35,7 +35,8 @@ namespace OpenRA.Graphics
public static int TicksSinceLastMove = 0;
public static int2 LastMousePos;
public void Scroll(float2 delta){
public void Scroll(float2 delta)
{
this.Scroll(delta, false);
}
@@ -43,22 +44,29 @@ namespace OpenRA.Graphics
{
float2 newScrollPosition = scrollPosition + delta;
if(!ignoreBorders){
float2 topLeftBorder = (Game.CellSize* mapStart).ToFloat2();
float2 bottomRightBorder = (Game.CellSize* mapEnd).ToFloat2();
if(newScrollPosition.Y < topLeftBorder.Y)
newScrollPosition.Y = topLeftBorder.Y;
if(newScrollPosition.X < topLeftBorder.X)
newScrollPosition.X = topLeftBorder.X;
if(newScrollPosition.Y > bottomRightBorder.Y-screenSize.Y)
newScrollPosition.Y = bottomRightBorder.Y-screenSize.Y;
if(newScrollPosition.X > bottomRightBorder.X-screenSize.X)
newScrollPosition.X = bottomRightBorder.X-screenSize.X;
}
if(!ignoreBorders)
newScrollPosition = this.NormalizeScrollPosition(newScrollPosition);
scrollPosition = newScrollPosition;
}
private float2 NormalizeScrollPosition(float2 newScrollPosition)
{
float2 topLeftBorder = (Game.CellSize* mapStart).ToFloat2();
float2 bottomRightBorder = (Game.CellSize* mapEnd).ToFloat2();
if(newScrollPosition.Y < topLeftBorder.Y)
newScrollPosition.Y = topLeftBorder.Y;
if(newScrollPosition.X < topLeftBorder.X)
newScrollPosition.X = topLeftBorder.X;
if(newScrollPosition.Y > bottomRightBorder.Y-screenSize.Y)
newScrollPosition.Y = bottomRightBorder.Y-screenSize.Y;
if(newScrollPosition.X > bottomRightBorder.X-screenSize.X)
newScrollPosition.X = bottomRightBorder.X-screenSize.X;
return newScrollPosition;
}
public ScrollDirection GetBlockedDirections()
{
int2 topLeftBorder = (Game.CellSize* mapStart);
@@ -129,7 +137,7 @@ namespace OpenRA.Graphics
public void Center(int2 loc)
{
scrollPosition = (Game.CellSize*loc - .5f * new float2(Width, Height));
scrollPosition = this.NormalizeScrollPosition(Game.CellSize*loc - .5f * new float2(Width, Height));
}
public void Center(IEnumerable<Actor> actors)
@@ -140,7 +148,7 @@ namespace OpenRA.Graphics
.Select(a => a.CenterLocation)
.Aggregate((a, b) => a + b);
scrollPosition = (avgPos - .5f * new float2(Width, Height));
scrollPosition = this.NormalizeScrollPosition((avgPos - .5f * new float2(Width, Height)));
}
public Rectangle? ShroudBounds()