// BillionaireLand Map Grid and Plot Management Contract

struct Plot {
    string plotId;
    address owner;
    string[] attributes;
    uint256 value;
}

// Storage for all plots
let plots = {};

// Function to create a new plot
function createPlot(plotId, owner, initialValue, attributes) {
    let newPlot = Plot(plotId, owner, attributes, initialValue);
    plots[plotId] = newPlot;
    announce "Plot " + plotId + " created by " + owner + " with initial value " + initialValue + " and attributes " + attributes;
}

// Function to transfer ownership of a plot
function transferPlot(plotId, newOwner) {
    require(plots[plotId].owner == caller);
    
    plots[plotId].owner = newOwner;
    announce "Plot " + plotId + " transferred to " + newOwner;
}

// Function to update plot attributes
function updateAttributes(plotId, newAttributes) {
    require(plots[plotId].owner == caller);
    
    plots[plotId].attributes = newAttributes;
    announce "Attributes of plot " + plotId + " updated to " + newAttributes;
}

// Function to get plot details
function getPlotDetails(plotId) {
    let plot = plots[plotId];
    announce "Plot ID: " + plotId + ", Owner: " + plot.owner + ", Value: " + plot.value + ", Attributes: " + plot.attributes;
}

// Function to set plot value
function setPlotValue(plotId, newValue) {
    require(plots[plotId].owner == caller);
    
    plots[plotId].value = newValue;
    announce "Value of plot " + plotId + " set to " + newValue;
}

// Advanced feature: Linking plots and creating clusters
function linkPlots(plotIds) {
    for (let i = 0; i < plotIds.length; i++) {
        require(plots[plotIds[i]].owner == caller);
    }
    
    announce "Plots " + plotIds + " linked together to form a cluster.";
}

// Advanced feature: Querying all plots owned by an address
function getPlotsByOwner(owner) {
    let ownerPlots = [];
    
    for (let plotId in plots) {
        if (plots[plotId].owner == owner) {
            ownerPlots.push(plotId);
        }
    }
    
    announce "Owner " + owner + " owns plots: " + ownerPlots;
}

// Function to perform transactions with plots
function plotTransaction(plotId, buyer, price) {
    require(plots[plotId].owner == caller);
    
    executePayment(buyer, plots[plotId].owner, price);
    plots[plotId].owner = buyer;
    announce "Plot " + plotId + " sold to " + buyer + " for " + price;
}

// Placeholder function to execute payment
function executePayment(buyer, seller, amount) {
    // Logic to transfer amount from buyer to seller
    announce buyer + " paid " + amount + " to " + seller;
}