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TilemapVX: Ensure legs of out-of-view table tiles are drawn

This commit is contained in:
Jonas Kulla 2015-07-19 22:32:59 +02:00
parent 7017ca1c53
commit 4d97a17c44
1 changed files with 7 additions and 3 deletions
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10
src/tilemapvx.cpp
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@ -181,16 +181,20 @@ struct TilemapVXPrivate : public ViewportElement, TileAtlasVX::Reader
void updateMapViewport() void updateMapViewport()
{ {
/* Note: We include one extra row at the top above
* the normal map viewport to ensure the legs of table
* tiles off screen are properly drawn */
IntRect newMvp; IntRect newMvp;
const Vec2i combOrigin = origin + sceneGeo.orig; const Vec2i combOrigin = origin + sceneGeo.orig;
const Vec2i geoSize = sceneGeo.rect.size(); const Vec2i geoSize = sceneGeo.rect.size();
newMvp.setPos(getTilePos(combOrigin)); newMvp.setPos(getTilePos(combOrigin) - Vec2i(0, 1));
/* Ensure that the size is big enough to cover the whole viewport, /* Ensure that the size is big enough to cover the whole viewport,
* and add one tile row/column as a buffer for scrolling */ * and add one tile row/column as a buffer for scrolling */
newMvp.setSize((geoSize / 32) + !!(geoSize % 32) + Vec2i(1)); newMvp.setSize((geoSize / 32) + !!(geoSize % 32) + Vec2i(1, 2));
if (newMvp != mapViewp) if (newMvp != mapViewp)
{ {
@ -199,7 +203,7 @@ struct TilemapVXPrivate : public ViewportElement, TileAtlasVX::Reader
buffersDirty = true; buffersDirty = true;
} }
dispPos = sceneGeo.rect.pos() - wrap(combOrigin, 32); dispPos = sceneGeo.rect.pos() - wrap(combOrigin, 32) - Vec2i(0, 32);
} }
static size_t quadBytes(size_t quads) static size_t quadBytes(size_t quads)