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feat: add polygon tool

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This commit is contained in:
Beriff
2026-03-09 23:26:12 +07:00
parent 9b4248981e
commit 2bdcbfae1f
8 changed files with 93 additions and 41 deletions
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17
src/core/raster.c
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@@ -20,17 +20,14 @@ void vektor_polyline_flatten(EdgeBuffer* buffer, VektorPolyline* line,
}
}
void vektor_polygon_flatten(EdgeBuffer* buffer, VektorPolygon* pg, size_t j) {
size_t n = pg->count;
if (n < 3)
return;
for (size_t i = 0; i < n; i++) {
V2 p1 = pg->points[i];
V2 p2 = pg->points[(i + 1) % n];
int winding = (p1.y < p2.y) ? +1 : -1;
vektor_edgebuffer_add_edge(buffer, (Edge){p1, p2, winding, j});
void vektor_polygon_flatten(EdgeBuffer* buffer, VektorPolygon* polygon,
size_t j) {
for (size_t i = 0; i + 1 < polygon->count; i++) {
vektor_edgebuffer_add_edge(
buffer, (Edge){polygon->points[i], polygon->points[i + 1], 0, j});
}
vektor_edgebuffer_add_edge(
buffer, (Edge){polygon->points[polygon->count - 1], polygon->points[0], 0, j});
}
void vektor_rasterize(VertexBuffer* vb, VektorShapeBuffer* shapes) {