/**
 * 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 TRIPRISM_VERTEX_COUNT 24
#define TRIPRISM_PRIMITIVE_TYPE MESH_PRIMITIVE_TYPE_TRIANGLES

extern mesh_t TRIPRISM_MESH_SIMPLE;
extern meshvertex_t TRIPRISM_MESH_SIMPLE_VERTICES[TRIPRISM_VERTEX_COUNT];

/**
 * Initializes the simple unit triangular prism. The cross-section triangle has
 * vertices (0,0), (1,0), (0.5,1) in XY, extruded from z=0 to z=1.
 *
 * @return Error for initialization of the triangular prism mesh.
 */
errorret_t triPrismInit();

/**
 * Buffers a triangular prism into the provided vertex array.
 * The triangular cross-section is defined by three 2D points in the XY plane;
 * the prism is extruded along the Z axis between minZ and maxZ.
 * Writes TRIPRISM_VERTEX_COUNT (24) vertices (CCW winding).
 *
 * @param vertices  Vertex array to write into.
 * @param x0,y0 First triangle vertex (XY).
 * @param x1,y1 Second triangle vertex (XY).
 * @param x2,y2 Third triangle vertex (XY).
 * @param minZ Near Z extent of the prism.
 * @param maxZ Far Z extent of the prism.
 * @param color Color applied to all vertices.
 */
void triPrismBuffer(
  meshvertex_t *vertices,
  const float_t x0, const float_t y0,
  const float_t x1, const float_t y1,
  const float_t x2, const float_t y2,
  const float_t minZ,
  const float_t maxZ
  #if MESH_ENABLE_COLOR
    , const color_t color
  #endif
);