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SpriteBatch:addg can now take triangle Geometries

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This commit is contained in:
Alex Szpakowski
2013-06-01 14:56:00 -03:00
parent 6fe1bfd5f9
commit da9675e424
1 changed files with 10 additions and 3 deletions
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src/modules/graphics/opengl/SpriteBatch.cpp
+10 -3
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@@ -123,11 +123,14 @@ int SpriteBatch::addg(Geometry *geom, float x, float y, float a, float sx, float
if ((index == -1 && next >= size) || index < -1 || index >= next)
return -1;
if (geom->getVertexCount() != 4)
throw love::Exception("Can only add quadrilateral geometries to SpriteBatch");
size_t vertexcount = geom->getVertexCount();
if (vertexcount > 4)
throw love::Exception("Cannot add Geometries with more than 4 vertices to SpriteBatch");
// If the Geometry has 3 vertices, then 2 triangles will be rendered in the
// SpriteBatch: 0-1-2 and 0-2-0. 0-2-0 will get ignored during rasterization.
for (size_t i = 0; i < 4; i++)
sprite[i] = geom->getVertex(i);
sprite[i] = geom->getVertex(i % vertexcount);
// Transform.
static Matrix t;
@@ -140,6 +143,10 @@ int SpriteBatch::addg(Geometry *geom, float x, float y, float a, float sx, float
addv(sprite, (index == -1) ? next : index);
// Make sure SpriteBatch colors are enabled if the Geometry has custom colors.
if (!color && geom->hasVertexColors())
setColor(Color(255, 255, 255, 255));
// Increment counter.
if (index == -1)
return next++;