PlayChip

0x0198f46f520f33cd4329bd4be380a25a90536cd5 Copy

ERC20

This contract is an ERC20 token.

Name PlayChip

Symbol PLA

Decimals 18

Total Supply 50,000,000,000 PLA

About

PlayChip (PLA) is a cryptocurrency and operates on the Ethereum platform. PlayChip has a current supply of 49,999,999,999.999901 with 0 in circulation. The last known price of PlayChip is 0.01265042 USD and is down -5.64 over the last 24 hours. It is currently trading on 4 active market(s) with $45,540.88 traded over the last 24 hours. More information can be found at https://www.playchip.com.

Stats

Public Functions 15

Event Types 10

Code Size 26,251 bytes

Events (10)

Approval Event

Parameters

owner	address
spender	address
quantity	uint

OwnerChanged Event

Parameters

oldOwner	address
newOwner	address

OwnerNominated Event

Parameters

newOwner

address

Paused Event

Parameters

SelfDestructBeneficiaryUpdated Event

Parameters

newBeneficiary

address

SelfDestructInitiated Event

Parameters

selfDestructDelay

uint

SelfDestructTerminated Event

Parameters

SelfDestructed Event

Parameters

beneficiary

address

Transfer Event

Parameters

from	address
to	address
quantity	uint

Unpaused Event

Parameters

Constants (1)

SELFDESTRUCT_DELAY Constant

uint

4 weeks

State Variables (12)

name Variable

string

symbol Variable

string

decimals Variable

uint8

totalSupply Variable

uint

owner Variable

address

nominatedOwner Variable

address

paused Variable

bool

selfDestructInitiationTime Variable

uint

selfDestructInitiated Variable

bool

selfDestructBeneficiary Variable

address

balanceOf Variable

mapping(address => uint)

allowance Variable

mapping(address => mapping(address => uint))

Internal Variable

Functions Expand All Collapse All

nominateNewOwner

Parameters

Name	Type
_owner	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function nominateNewOwner(address _owner) public onlyOwner {
  nominatedOwner = _owner;
  emit OwnerNominated(_owner);
}

acceptOwnership

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Requirements

nominatedOwner must be equal to the sender's address

Source Code

function acceptOwnership() external {
  require(msg.sender == nominatedOwner, "Not nominated.");
  emit OwnerChanged(owner, nominatedOwner);
  owner = nominatedOwner;
  nominatedOwner = address(0);
}

setSelfDestructBeneficiary

Parameters

Name	Type
_beneficiary	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

_beneficiary must not be equal to UNKNOWN VALUE

Source Code

function setSelfDestructBeneficiary(address _beneficiary) external onlyOwner {
  require(
    _beneficiary != address(0),
    "Beneficiary must not be the zero address."
  );
  selfDestructBeneficiary = _beneficiary;
  emit SelfDestructBeneficiaryUpdated(_beneficiary);
}

initiateSelfDestruct

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

selfDestructInitiated must not be true

Source Code

function initiateSelfDestruct() external onlyOwner {
  require(!selfDestructInitiated, "Self-destruct already initiated.");
  selfDestructInitiationTime = now;
  selfDestructInitiated = true;
  emit SelfDestructInitiated(SELFDESTRUCT_DELAY);
}

terminateSelfDestruct

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

selfDestructInitiated must be true

Source Code

function terminateSelfDestruct() external onlyOwner {
  require(selfDestructInitiated, "Self-destruct not yet initiated.");
  selfDestructInitiationTime = 0;
  selfDestructInitiated = false;
  emit SelfDestructTerminated();
}

selfDestruct

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

selfDestructInitiated must be true

now must be greater than selfDestructInitiationTime + SELFDESTRUCT_DELAY

Source Code

function selfDestruct() external onlyOwner {
  require(selfDestructInitiated, "Self-destruct not yet initiated.");
  require(
    selfDestructInitiationTime + SELFDESTRUCT_DELAY < now,
    "Self-destruct delay has not yet elapsed."
  );
  address beneficiary = selfDestructBeneficiary;
  emit SelfDestructed(beneficiary);
  selfdestruct(beneficiary);
}

pause

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function pause() public onlyOwner {
  _pause();
}

unpause

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function unpause() public onlyOwner {
  _unpause();
}

approve

Parameters

Name	Type
spender	address
quantity	uint

Properties

Visibility public

Mutability transaction

Modifiers

pausableIfNotSelfDestructing checks for the following:

One or more of the following: -selfDestructInitiated must be true - ORpaused must not be true

Requirements

spender must not be equal to UNKNOWN VALUE

Source Code

function approve(address spender, uint256 quantity)
  public
  pausableIfNotSelfDestructing
  returns (bool)
{
  require(spender != address(0), "Approvals for 0x0 disallowed.");
  allowance[msg.sender][spender] = quantity;
  emit Approval(msg.sender, spender, quantity);
  return true;
}

transfer

Parameters

Name	Type
to	address
quantity	uint

Properties

Visibility public

Mutability transaction

Modifiers

pausableIfNotSelfDestructing checks for the following:

One or more of the following: -selfDestructInitiated must be true - ORpaused must not be true

Requirements

to must not be equal to UNKNOWN VALUE

Source Code

function transfer(address to, uint256 quantity)
  public
  pausableIfNotSelfDestructing
  returns (bool)
{
  return _transfer(msg.sender, to, quantity);
}

transferFrom

Parameters

Name	Type
from	address
to	address
quantity	uint

Properties

Visibility public

Mutability transaction

Modifiers

pausableIfNotSelfDestructing checks for the following:

One or more of the following: -selfDestructInitiated must be true - ORpaused must not be true

Requirements

to must not be equal to UNKNOWN VALUE

Source Code

function transferFrom(
  address from,
  address to,
  uint256 quantity
) public pausableIfNotSelfDestructing returns (bool) {
  // safeSub handles insufficient allowance.
  allowance[from][msg.sender] = safeSub(allowance[from][msg.sender], quantity);
  return _transfer(from, to, quantity);
}

batchTransfer

Parameters

Name	Type
recipients	address[]
quantities	uint[]

Properties

Visibility public

Mutability transaction

Modifiers

pausableIfNotSelfDestructing checks for the following:

One or more of the following: -selfDestructInitiated must be true - ORpaused must not be true

Source Code

function batchTransfer(address[] recipients, uint256[] quantities)
  external
  pausableIfNotSelfDestructing
  returns (bool)
{
  return _batchTransfer(msg.sender, recipients, quantities);
}

batchApprove

Parameters

Name	Type
spenders	address[]
quantities	uint[]

Properties

Visibility public

Mutability transaction

Modifiers

pausableIfNotSelfDestructing checks for the following:

One or more of the following: -selfDestructInitiated must be true - ORpaused must not be true

requireSameLength checks for the following:

the number of values in spenders must be equal to the number of values in quantities

Source Code

function batchApprove(address[] spenders, uint256[] quantities)
  external
  pausableIfNotSelfDestructing
  requireSameLength(spenders.length, quantities.length)
  returns (bool)
{
  uint256 length = spenders.length;
  for (uint256 i = 0; i < length; i++) {
    approve(spenders[i], quantities[i]);
  }
  return true;
}

batchTransferFrom

Parameters

Name	Type
spenders	address[]
recipients	address[]
quantities	uint[]

Properties

Visibility public

Mutability transaction

Modifiers

pausableIfNotSelfDestructing checks for the following:

One or more of the following: -selfDestructInitiated must be true - ORpaused must not be true

requireSameLength checks for the following:

the number of values in spenders must be equal to the number of values in quantities

requireSameLength checks for the following:

the number of values in spenders must be equal to the number of values in quantities

Source Code

function batchTransferFrom(
  address[] spenders,
  address[] recipients,
  uint256[] quantities
)
  external
  pausableIfNotSelfDestructing
  requireSameLength(spenders.length, recipients.length)
  requireSameLength(recipients.length, quantities.length)
  returns (bool)
{
  uint256 length = spenders.length;
  for (uint256 i = 0; i < length; i++) {
    transferFrom(spenders[i], recipients[i], quantities[i]);
  }
  return true;
}

contractBatchTransfer

Parameters

Name	Type
recipients	address[]
quantities	uint[]

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function contractBatchTransfer(address[] recipients, uint256[] quantities)
  external
  onlyOwner
  returns (bool)
{
  return _batchTransfer(this, recipients, quantities);
}

Internal Functions Expand All Collapse All

Internal functions are parts of the contract that can't be used directly, but instead are used by the public functions listed above.

internal PlayChip.safeSub

Parameters

Name	Type
x	uint
y	uint

Properties

Visibility internal

Mutability pure

Requirements

y must be less than or equal to x

Source Code

function safeSub(uint256 x, uint256 y) internal pure returns (uint256) {
  require(y <= x, "Safe sub failed.");
  return x - y;
}

internal PlayChip._transfer

Parameters

Name	Type
from	address
to	address
quantity	uint

Properties

Visibility internal

Mutability transaction

Requirements

to must not be equal to UNKNOWN VALUE

Source Code

function _transfer(
  address from,
  address to,
  uint256 quantity
) internal returns (bool) {
  require(to != address(0), "Transfers to 0x0 disallowed.");
  balanceOf[from] = safeSub(balanceOf[from], quantity); // safeSub handles insufficient balance.
  balanceOf[to] += quantity;
  emit Transfer(from, to, quantity);
  return true;

  /* Since balances are only manipulated here, and the sum of all
   * balances is preserved, no balance is greater than
   * totalSupply; the safeSub implies that balanceOf[to] + quantity is
   * no greater than totalSupply.
   * Thus a safeAdd is unnecessary, since overflow is impossible. */
}

internal PlayChip._batchTransfer

Parameters

Name	Type
sender	address
recipients	address[]
quantities	uint[]

Properties

Visibility internal

Mutability transaction

Modifiers

requireSameLength checks for the following:

the number of values in spenders must be equal to the number of values in quantities

Source Code

function _batchTransfer(
  address sender,
  address[] recipients,
  uint256[] quantities
)
  internal
  requireSameLength(recipients.length, quantities.length)
  returns (bool)
{
  uint256 length = recipients.length;
  for (uint256 i = 0; i < length; i++) {
    _transfer(sender, recipients[i], quantities[i]);
  }
  return true;
}

internal Pausable._pause

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

function _pause() internal {
  if (!paused) {
    paused = true;
    emit Paused();
  }
}

internal Pausable._unpause

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

function _unpause() internal {
  if (paused) {
    paused = false;
    emit Unpaused();
  }
}

PlayChip

ERC20

About link description

Stats

Events (10) keyboard_arrow_up

Approval Event

Parameters help Event parameters list the data that an event contains.

OwnerChanged Event

Parameters help Event parameters list the data that an event contains.

OwnerNominated Event

Parameters help Event parameters list the data that an event contains.

Paused Event

Parameters help Event parameters list the data that an event contains.

SelfDestructBeneficiaryUpdated Event

Parameters help Event parameters list the data that an event contains.

SelfDestructInitiated Event

Parameters help Event parameters list the data that an event contains.

SelfDestructTerminated Event

Parameters help Event parameters list the data that an event contains.

SelfDestructed Event

Parameters help Event parameters list the data that an event contains.

Transfer Event

Parameters help Event parameters list the data that an event contains.

Unpaused Event

Parameters help Event parameters list the data that an event contains.

Constants (1) keyboard_arrow_up

SELFDESTRUCT_DELAY Constant

State Variables (12) keyboard_arrow_up

name Variable

symbol Variable

decimals Variable

totalSupply Variable

owner Variable

nominatedOwner Variable

paused Variable

selfDestructInitiationTime Variable

selfDestructInitiated Variable

selfDestructBeneficiary Variable

balanceOf Variable

allowance Variable

Functions Expand All Collapse All

nominateNewOwner keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

Source Code

acceptOwnership keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

setSelfDestructBeneficiary keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

initiateSelfDestruct keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

terminateSelfDestruct keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

selfDestruct keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

About

Events (10)

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Constants (1)

State Variables (12)

nominateNewOwner

Parameters

Modifiers

acceptOwnership

Parameters

Requirements

setSelfDestructBeneficiary

Parameters

Modifiers

Requirements

initiateSelfDestruct

Parameters

Modifiers

Requirements

terminateSelfDestruct

Parameters

Modifiers

Requirements

selfDestruct

Parameters

Modifiers

Requirements

pause

Parameters

Modifiers

unpause

Parameters

Modifiers

approve

Parameters

Modifiers

Requirements

transfer

Parameters

Modifiers

Requirements

transferFrom

Parameters

Modifiers

Requirements

batchTransfer

Parameters

Modifiers

batchApprove

Parameters

Modifiers

batchTransferFrom

Parameters

Modifiers

contractBatchTransfer

Parameters

Modifiers

internal PlayChip.safeSub

Parameters

Requirements

internal PlayChip._transfer

Parameters