/* Functional, but should be replaced with something better. */

#pragma once
#include "ModelManager.h"

void InitModel(VModel * m) {
  m->NumberOfVertices = 0;
  m->Vertices = NULL;
  m->Color[0] = m->Color[1] = m->Color[2] = m->Color[3] = 1.0;
}

void CleanUpModel(VModel * m) {
  if (m->Vertices != NULL) {
    DisposePtr((Ptr) m->Vertices);
    m->Vertices = NULL;
  }
  m->NumberOfVertices = 0;
}

Boolean AllocateVertices(VModel * m, int numberOfVertices) {
  m->Vertices = (Vector *) NewPtrClear(sizeof(Vector) * numberOfVertices);
  if (m->Vertices == NULL) return 0;
  m->NumberOfVertices = numberOfVertices;
  return 1;
}

void DrawModel(VModel * m) {
  int wVertex;
  
  glColor4f(m->Color[0], m->Color[1], m->Color[2], m->Color[3]);
  glBegin(GL_QUADS);
  for (wVertex = 0; wVertex < m->NumberOfVertices; wVertex++) {
    glVertex3f(m->Vertices[wVertex].x, m->Vertices[wVertex].y, m->Vertices[wVertex].z);
  }
  glEnd();
  
  glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
  glPolygonOffset(1.0, 1.0);
  glColor4f(0.0, 0.0, 0.0, m->Color[3]);
  glBegin(GL_QUADS);
  for (wVertex = 0; wVertex < m->NumberOfVertices; wVertex++) {
    glVertex3f(m->Vertices[wVertex].x, m->Vertices[wVertex].y, m->Vertices[wVertex].z);
  }
  glEnd();
  glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
}