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Graphics/Sprite: Allow to change origin

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This commit is contained in:
Jérôme Leclercq
2021-12-23 17:32:18 +01:00
parent e2882f6595
commit ed3ee34565
3 changed files with 37 additions and 26 deletions
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56
include/Nazara/Graphics/Sprite.inl
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@@ -18,6 +18,16 @@ namespace Nz
return m_cornerColor[UnderlyingCast(corner)];
}
inline const Vector3f& Sprite::GetOrigin() const
{
return m_origin;
}
inline const Vector2f& Sprite::GetSize() const
{
return m_size;
}
inline const Rectf& Sprite::GetTextureCoords() const
{
return m_textureCoords;
@@ -50,6 +60,13 @@ namespace Nz
}
}
inline void Sprite::SetOrigin(const Vector3f& origin)
{
m_origin = origin;
UpdateVertices();
}
inline void Sprite::SetSize(const Vector2f& size)
{
m_size = size;
@@ -72,37 +89,26 @@ namespace Nz
inline void Sprite::UpdateVertices()
{
VertexStruct_XYZ_Color_UV* vertices = m_vertices.data();
Vector3f origin = Vector3f::Zero(); //< TODO
Boxf aabb;
vertices->color = m_color * m_cornerColor[UnderlyingCast(RectCorner::LeftBottom)];
vertices->position = Vector3f(-origin);
vertices->uv = m_textureCoords.GetCorner(RectCorner::LeftBottom);
VertexStruct_XYZ_Color_UV* vertices = m_vertices.data();
aabb.Set(vertices->position);
std::array<Vector2f, RectCornerCount> cornerExtent;
cornerExtent[UnderlyingCast(RectCorner::LeftBottom)] = Vector2f(0.f, 0.f);
cornerExtent[UnderlyingCast(RectCorner::RightBottom)] = Vector2f(1.f, 0.f);
cornerExtent[UnderlyingCast(RectCorner::LeftTop)] = Vector2f(0.f, 1.f);
cornerExtent[UnderlyingCast(RectCorner::RightTop)] = Vector2f(1.f, 1.f);
vertices++;
vertices->color = m_color * m_cornerColor[UnderlyingCast(RectCorner::RightBottom)];
vertices->position = m_size.x * Vector3f::Right() - origin;
vertices->uv = m_textureCoords.GetCorner(RectCorner::RightBottom);
for (RectCorner corner : { RectCorner::LeftBottom, RectCorner::RightBottom, RectCorner::LeftTop, RectCorner::RightTop })
{
vertices->color = m_color * m_cornerColor[UnderlyingCast(corner)];
vertices->position = Vector3f(m_size * cornerExtent[UnderlyingCast(corner)], 0.f) - m_origin;
vertices->uv = m_textureCoords.GetCorner(corner);
aabb.ExtendTo(vertices->position);
aabb.Set(vertices->position);
vertices++;
vertices->color = m_color * m_cornerColor[UnderlyingCast(RectCorner::LeftTop)];
vertices->position = m_size.y * Vector3f::Up() - origin;
vertices->uv = m_textureCoords.GetCorner(RectCorner::LeftTop);
aabb.ExtendTo(vertices->position);
vertices++;
vertices->color = m_color * m_cornerColor[UnderlyingCast(RectCorner::RightTop)];
vertices->position = m_size.x * Vector3f::Right() + m_size.y * Vector3f::Up() - origin;
vertices->uv = m_textureCoords.GetCorner(RectCorner::RightTop);
aabb.ExtendTo(vertices->position);
vertices++;
}
UpdateAABB(aabb);
OnElementInvalidated(this);