#include <GL/glut.h>

#include <iostream>
#define _USE_MATH_DEFINES
#include <math.h>
#include "C_Block.h"

#define FADE_DURATION 500

/*Durations of animations*/
unsigned int g_BlockAnimDurations[4] = {0, 500, 500, 100};

C_Block::C_Block(const char* f_strFileName,
          GLuint f_uiColorTex ,
          MatProps_t f_Mat) 
: C_3DObject(f_strFileName, f_uiColorTex, f_Mat), 
  m_CurrState(BS_IDLE), m_uiAnimStart(0)
{
  
}

C_Block::~C_Block()
{

}

void C_Block::Render(unsigned int f_iElapsedTime)
{
  unsigned int l_uiDeltaTime = f_iElapsedTime - m_uiAnimStart;
  double l_Scale, l_Scalexz, l_Frac;


  //check if the previous animation has ended in between
  //calls to this Render function.
  if (l_uiDeltaTime > g_BlockAnimDurations[(int)m_CurrState])
  {
    m_CurrState = BS_IDLE;
  }

  glPushMatrix();

  switch (m_CurrState)
  {
  case BS_FADE_IN:
    l_Scale = (double)l_uiDeltaTime / (double)g_BlockAnimDurations[BS_FADE_IN];
    //glScaled(l_Scale, l_Scale, l_Scale);
    SetScale(l_Scale, l_Scale, l_Scale);
    TransRotateScale();
    C_3DObject::Render();
    break;

  case BS_FADE_OUT:
    l_Scale = 1.0 - ((double)l_uiDeltaTime / (double)g_BlockAnimDurations[BS_FADE_OUT]);
//    glScaled(l_Scale, l_Scale, l_Scale);
    SetScale(l_Scale, l_Scale, l_Scale);
    TransRotateScale();
    C_3DObject::Render();
    break;

  case BS_COLLIDE: //wobble
    l_Frac = ((double)l_uiDeltaTime / (double)g_BlockAnimDurations[BS_COLLIDE]);
    l_Frac *= (M_PI/2.0);
    l_Scale = 0.8 + cos(l_Frac)*0.2;
    l_Scalexz = 1.0 - sin(l_Frac)*0.2;
    SetScale(l_Scalexz, l_Scale, l_Scalexz);
    TransRotateScale();
    C_3DObject::Render();
    break;

  case BS_IDLE:
  default:
    SetScale(1.0, 1.0, 1.0);
    TransRotateScale();
    C_3DObject::Render();
    break;
  }

  glPopMatrix();

}