/*
 * ez3d.h -- shared types for ez3d: grayscale PNG -> printable STL heightmap.
 *
 * Conventions (see README.md):
 *   - 1 pixel = 1 unit of X/Y extent (STL is unitless; slicers treat it as mm).
 *   - A WxH image yields an object exactly W x H units in footprint: the
 *     vertex grid is (W+1) x (H+1), sitting on pixel corners.
 *   - Height: z = base + (gray/255) * height_scale, optionally inverted.
 *   - Image row 0 (top) maps to max Y so the model reads upright in a
 *     Y-up viewer.
 */
#ifndef EZ3D_H
#define EZ3D_H

#include <stdint.h>
#include <stdio.h>

/*
 * See README.md for more details of options.
 */
typedef struct {
    const char *in_path;    // input PNG
    const char *out_path;   // output STL
    double height;          // world units for gray 255 (default 10)
    double base;            // solid base thickness under gray 0 (default 0)
    double edge;            // height of edge-of-world cells & transparent alpha
    double tolerance;       // Allowance for flatness and borderline zero checks.
    int alpha_thresh;       // alpha >= thresh is solid; 256 = never cut
    int fold;               // folding style, only two options: 0, 1
    int decimate;           // decimation level, 0=off, 1..5 controls error
    int simplify;           // Simplification: 0=none, 1=light .. 5=aggressive
    int ascii;              // write ASCII STL instead of binary
    int verify;             // re-read STL and check manifoldness
    int max_groups;         // Arbitrary upper limit on grouping phase
    int test_dump_cells;    // Test mode only - dump table after cell calc
    int test_dump_groups;   // Test mode only - dump table after grouping
} ez3d_config_t;

#endif /* EZ3D_H */