#include "coin.h"
#define SPRITE_NUMBERS 31

void Coin::Init()
{
    pos = {800, 400};

    CoinSprite = LoadTexture("Assets/coinspritesheets.png");        // Texture loading

    frameRec = { 0.0f, 0.0f, (float)CoinSprite.width/SPRITE_NUMBERS, (float)CoinSprite.height };

    currentFrame = 0;
    framesCounter = 0;
    framesSpeed = 16;            // Number of spritesheet frames shown by second
}

void Coin::Update()
{
    framesCounter++; 

    if (framesCounter >= (60/framesSpeed))   // FPS를 60으로 설정했으므로 60을 프레임스피드로 나눈다. 그러면 1초당 몇번 돌릴지 결과 값이 나온다. 
    {
        framesCounter = 0;
        currentFrame++;

        if (currentFrame > SPRITE_NUMBERS) currentFrame = 0;

        frameRec.x = (float)currentFrame*(float)CoinSprite.width/SPRITE_NUMBERS;
    }

}

void Coin::Draw()
{
    DrawTextureRec(CoinSprite, frameRec, pos, WHITE);  // Draw part of the texture
}

Coin::~Coin()
{
    UnloadTexture(CoinSprite);       // Texture unloading
}