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PodTransfer.sol
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PodTransfer.sol
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/**
* SPDX-License-Identifier: MIT
**/
pragma solidity ^0.7.6;
pragma experimental ABIEncoderV2;
import "./BeanDibbler.sol";
/**
* @author Publius
* @title Pod Transfer
**/
contract PodTransfer is BeanDibbler {
using SafeMath for uint256;
using SafeMath for uint32;
/**
* Getters
**/
function allowancePods(address owner, address spender) public view returns (uint256) {
return s.a[owner].field.podAllowances[spender];
}
/**
* Internal
**/
function insertPlot(address account, uint256 id, uint256 amount) internal {
s.a[account].field.plots[id] = amount;
}
function removePlot(address account, uint256 id, uint256 start, uint256 end) internal {
uint256 amount = plot(account, id);
if (start == 0) delete s.a[account].field.plots[id];
else s.a[account].field.plots[id] = start;
if (end != amount) s.a[account].field.plots[id.add(end)] = amount.sub(end);
}
function decrementAllowancePods(address owner, address spender, uint256 amount) internal {
uint256 currentAllowance = allowancePods(owner, spender);
setAllowancePods(
owner,
spender,
currentAllowance.sub(amount, "Field: Insufficient approval.")
);
}
function setAllowancePods(address owner, address spender, uint256 amount) internal {
s.a[owner].field.podAllowances[spender] = amount;
}
}