cairo_bool_t cairocks_map_path_onto(cairo_t* cr, cairo_path_t* path) {
cairo_path_t* cur_path = 0;
parametrized_path_t param;
if(cairo_status(cr) || !path) return FALSE;
cur_path = cairo_copy_path(cr);
param.path = path;
param.parametrization = parametrize_path(path);
cairo_new_path(cr);
transform_path(
cur_path,
(transform_point_func_t)(point_on_path),
¶m
);
cairo_append_path(cr, cur_path);
free(param.parametrization);
cairo_path_destroy(cur_path);
return TRUE;
}
/* Projects the current path of cr onto the provided path. */
static void
map_path_onto (cairo_t *cr, cairo_path_t *path)
{
cairo_path_t *current_path;
parametrized_path_t param;
param.path = path;
param.parametrization = parametrize_path (path);
current_path = cairo_copy_path (cr);
cairo_new_path (cr);
transform_path (current_path,
(transform_point_func_t) point_on_path, ¶m);
cairo_append_path (cr, current_path);
cairo_path_destroy (current_path);
g_free (param.parametrization);
}
void
FlipLevelTransformer::transform_tilemap(float height, TileMap* tilemap)
{
for(size_t x = 0; x < tilemap->get_width(); ++x) {
for(size_t y = 0; y < tilemap->get_height()/2; ++y) {
// swap tiles
int y2 = tilemap->get_height()-1-y;
uint32_t t1 = tilemap->get_tile_id(x, y);
uint32_t t2 = tilemap->get_tile_id(x, y2);
tilemap->change(x, y, t2);
tilemap->change(x, y2, t1);
}
}
tilemap->set_drawing_effect(transform_drawing_effect(tilemap->get_drawing_effect()));
Vector offset = tilemap->get_offset();
offset.y = height - offset.y - tilemap->get_bbox().get_height();
tilemap->set_offset(offset);
Path* path = tilemap->get_path().get();
if (path)
transform_path(height, tilemap->get_bbox().get_height(), *path);
}
void
FlipLevelTransformer::transform_tilemap(float height, TileMap& tilemap)
{
for(int x = 0; x < tilemap.get_width(); ++x) {
for(int y = 0; y < tilemap.get_height()/2; ++y) {
// swap tiles
int y2 = tilemap.get_height()-1-y;
uint32_t t1 = tilemap.get_tile_id(x, y);
uint32_t t2 = tilemap.get_tile_id(x, y2);
tilemap.change(x, y, t2);
tilemap.change(x, y2, t1);
}
}
tilemap.set_flip(transform_flip(tilemap.get_flip()));
Vector offset = tilemap.get_offset();
offset.y = height - offset.y - tilemap.get_bbox().get_height();
tilemap.set_offset(offset);
auto path = tilemap.get_path();
if (path)
transform_path(height, tilemap.get_bbox().get_height(), *path);
}
void
FlipLevelTransformer::transform_platform(float height, Platform& platform)
{
transform_path(height, platform.get_bbox().get_height(), platform.get_path());
}
