/**
 * Copyright (c) 2026 Dominic Masters
 *
 * This software is released under the MIT License.
 * https://opensource.org/licenses/MIT
 */

#pragma once
#include "display/mesh/mesh.h"
#include "display/color.h"

#define CAPSULE_CAP_RINGS 4
#define CAPSULE_SECTORS   16
#define CAPSULE_VERTEX_COUNT ((2 * CAPSULE_CAP_RINGS + 1) * CAPSULE_SECTORS * 6)
#define CAPSULE_PRIMITIVE_TYPE MESH_PRIMITIVE_TYPE_TRIANGLES

extern mesh_t CAPSULE_MESH_SIMPLE;
extern meshvertex_t CAPSULE_MESH_SIMPLE_VERTICES[CAPSULE_VERTEX_COUNT];

/**
 * Initializes the simple unit capsule mesh centered at (0,0,0) with radius 0.5
 * and a cylindrical half-height of 0.5 (total height 2.0).
 *
 * @return Error for initialization of the capsule mesh.
 */
errorret_t capsuleInit();

/**
 * Buffers a capsule (cylinder + two hemisphere caps) into the provided vertex
 * array. The capsule's long axis is Y. Total vertex count is
 * (2*capRings + 1) * sectors * 6.
 *
 * @param vertices    Vertex array to write into.
 * @param center      Center position of the capsule.
 * @param radius      Radius of the cylinder and hemisphere caps.
 * @param halfHeight  Half the height of the cylindrical section only (caps
 *                    extend an additional radius above/below).
 * @param capRings    Number of latitude rings per hemisphere cap.
 * @param sectors     Number of longitude segments around the circumference.
 * @param color       Color applied to all vertices.
 */
void capsuleBuffer(
  meshvertex_t *vertices,
  const vec3 center,
  const float_t radius,
  const float_t halfHeight,
  const int32_t capRings,
  const int32_t sectors
  #if MESH_ENABLE_COLOR
    , const color_t color
  #endif
);