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Three things, sorry. SDL composite texture bugfix, sprite offset position, some Grid render efficiencies

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John McCardle 2026-03-03 23:17:02 -05:00
commit 120b0aa2a4
5 changed files with 273 additions and 27 deletions
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30
src/UIGrid.cpp
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@ -148,6 +148,26 @@ void UIGrid::render(sf::Vector2f offset, sf::RenderTarget& target)
// #228 - Ensure renderTexture matches current game resolution
ensureRenderTextureSize();
if (!render_dirty && !composite_dirty) {
if (shader && shader->shader) {
sf::Vector2f resolution(box.getSize().x, box.getSize().y);
PyShader::applyEngineUniforms(*shader->shader, resolution);
// Apply user uniforms
if (uniforms) {
uniforms->applyTo(*shader->shader);
}
target.draw(output, shader->shader.get());
}
else
{
output.setPosition(box.getPosition() + offset);
target.draw(output);
return;
}
}
// TODO: Apply opacity to output sprite
// Get cell dimensions - use texture if available, otherwise defaults
@ -228,9 +248,9 @@ void UIGrid::render(sf::Vector2f offset, sf::RenderTarget& target)
for (auto e : *entities) {
// Skip out-of-bounds entities for performance
// Check if entity is within visible bounds (with 1 cell margin for partially visible entities)
if (e->position.x < left_edge - 1 || e->position.x >= left_edge + width_sq + 1 ||
e->position.y < top_edge - 1 || e->position.y >= top_edge + height_sq + 1) {
// Check if entity is within visible bounds (with 2 cell margin for offset/oversized sprites)
if (e->position.x < left_edge - 2 || e->position.x >= left_edge + width_sq + 2 ||
e->position.y < top_edge - 2 || e->position.y >= top_edge + height_sq + 2) {
continue; // Skip this entity as it's not visible
}
@ -239,8 +259,8 @@ void UIGrid::render(sf::Vector2f offset, sf::RenderTarget& target)
//drawent.setScale(zoom, zoom);
drawent.setScale(sf::Vector2f(zoom, zoom));
auto pixel_pos = sf::Vector2f(
(e->position.x*cell_width - left_spritepixels) * zoom,
(e->position.y*cell_height - top_spritepixels) * zoom );
(e->position.x*cell_width - left_spritepixels + e->sprite_offset.x) * zoom,
(e->position.y*cell_height - top_spritepixels + e->sprite_offset.y) * zoom );
drawent.render(pixel_pos, *activeTexture);
entitiesRendered++;