package android.emu6502.nes

import java.util.*

data class Cartridge(
    // @formatter:off
    val pgr: ByteArray, // PRG-ROM banks
    val chr: ByteArray, // CHR-ROM banks
    val mapper: Byte,   // mapper type
    val mirror: Byte,   // mirroring mode
    val battery: Byte   // battery present
    // @formatter:on
) {
  private val sram: ByteArray = ByteArray(0x2000) // Save RAM

  override fun equals(other: Any?): Boolean {
    if (this === other) return true
    if (other?.javaClass != javaClass) return false

    other as Cartridge

    if (!Arrays.equals(pgr, other.pgr)) return false
    if (!Arrays.equals(chr, other.chr)) return false
    if (!Arrays.equals(sram, other.sram)) return false
    if (mapper != other.mapper) return false
    if (mirror != other.mirror) return false
    if (battery != other.battery) return false

    return true
  }

  override fun hashCode(): Int {
    var result = Arrays.hashCode(pgr)
    result = 31 * result + Arrays.hashCode(chr)
    result = 31 * result + Arrays.hashCode(sram)
    result = 31 * result + mapper
    result = 31 * result + mirror
    result = 31 * result + battery
    return result
  }
}