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authorAndrei Karas <akaras@inbox.ru>2011-07-11 21:40:28 +0300
committerAndrei Karas <akaras@inbox.ru>2011-07-11 21:56:39 +0300
commit32bf97c611eb92d3ecb64a0532e881922dd87109 (patch)
tree8e093f8b512487e666decb49ed6c6d00086dcd02 /src/map.cpp
parent7f6bcbba639bfbfcacd08113148a98be1693e00c (diff)
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Small optimisation in map draw code.
Diffstat (limited to 'src/map.cpp')
-rw-r--r--src/map.cpp25
1 files changed, 13 insertions, 12 deletions
diff --git a/src/map.cpp b/src/map.cpp
index 8d7002689..94d1a318e 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -220,7 +220,7 @@ void MapLayer::draw(Graphics *graphics, int startX, int startY,
void MapLayer::drawFringe(Graphics *graphics, int startX, int startY,
int endX, int endY, int scrollX, int scrollY,
- const Actors &actors, int debugFlags, int yFix) const
+ const Actors *actors, int debugFlags, int yFix) const
{
if (!player_node || !mSpecialLayer || !mTempLayer)
return;
@@ -239,7 +239,7 @@ void MapLayer::drawFringe(Graphics *graphics, int startX, int startY,
if (endY > mHeight)
endY = mHeight;
- Actors::const_iterator ai = actors.begin();
+ Actors::const_iterator ai = actors->begin();
const int dx = (mX * 32) - scrollX;
const int dy = (mY * 32) - scrollY + 32;
@@ -255,7 +255,7 @@ void MapLayer::drawFringe(Graphics *graphics, int startX, int startY,
// If drawing the fringe layer, make sure all actors above this row of
// tiles have been drawn
- while (ai != actors.end() && (*ai)->getPixelY() <= y32s)
+ while (ai != actors->end() && (*ai)->getPixelY() <= y32s)
{
(*ai)->draw(graphics, -scrollX, -scrollY);
++ ai;
@@ -358,7 +358,7 @@ void MapLayer::drawFringe(Graphics *graphics, int startX, int startY,
// Draw any remaining actors
if (debugFlags != Map::MAP_SPECIAL3)
{
- while (ai != actors.end())
+ while (ai != actors->end())
{
(*ai)->draw(graphics, -scrollX, -scrollY);
++ai;
@@ -594,12 +594,13 @@ void Map::update(int ticks)
void Map::draw(Graphics *graphics, int scrollX, int scrollY)
{
// Calculate range of tiles which are on-screen
- int endPixelY = graphics->mHeight + scrollY + mTileHeight - 1;
- endPixelY += mMaxTileHeight - mTileHeight;
- int startX = scrollX / mTileWidth;
- int startY = scrollY / mTileHeight;
- int endX = (graphics->mWidth + scrollX + mTileWidth - 1) / mTileWidth;
- int endY = endPixelY / mTileHeight;
+ const int endPixelY = graphics->mHeight + scrollY + mTileHeight - 1
+ + mMaxTileHeight - mTileHeight;
+ const int startX = scrollX / mTileWidth;
+ const int startY = scrollY / mTileHeight;
+ const int endX = (graphics->mWidth + scrollX + mTileWidth - 1)
+ / mTileWidth;
+ const int endY = endPixelY / mTileHeight;
// Make sure actors are sorted ascending by Y-coordinate
// so that they overlap correctly
@@ -637,7 +638,7 @@ void Map::draw(Graphics *graphics, int scrollX, int scrollY)
mFringeLayer->setSpecialLayer(mSpecialLayer);
mFringeLayer->setTempLayer(mTempLayer);
mFringeLayer->drawFringe(graphics, startX, startY, endX, endY,
- scrollX, scrollY, mActors, mDebugFlags, mActorFixY);
+ scrollX, scrollY, &mActors, mDebugFlags, mActorFixY);
}
}
else
@@ -652,7 +653,7 @@ void Map::draw(Graphics *graphics, int scrollX, int scrollY)
overFringe = true;
(*layeri)->drawFringe(graphics, startX, startY, endX, endY,
- scrollX, scrollY, mActors, mDebugFlags, mActorFixY);
+ scrollX, scrollY, &mActors, mDebugFlags, mActorFixY);
}
else
{