begin base for price of stocks
This commit is contained in:
Lorenc Pekaj
parent
8777a286a0
commit
b1847fffdf
@ -9,9 +9,192 @@
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#include < YSI\y_hooks >
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#include < YSI\y_hooks >
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/* ** Definitions ** */
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/* ** Definitions ** */
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#define MAX_STOCKS ( 32 )
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#define STOCK_REPORTING_PERIOD ( 86400 ) // 1 day
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#define STOCK_REPORTING_PERIODS ( 30 ) // last 30 periods (days)
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#define DIALOG_STOCK_MARKET 8923
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/* ** Variables ** */
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/* ** Variables ** */
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enum E_STOCK_MARKET_DATA
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{
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E_NAME[ 64 ], E_SYMBOL[ 4 ], E_MAX_SHARES,
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// market maker
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E_MM_SHARES, E_MM_IPO_PRICE
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};
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enum E_STOCK_MARKET_PRICE_DATA
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{
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E_CURRENT_PRICE,
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E_CURRENT_EARNINGS, E_PREVIOUS_EARNINGS
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};
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static stock
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g_stockMarketData [ MAX_STOCKS ] [ E_STOCK_MARKET_DATA ],
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g_stockMarketPriceData [ MAX_STOCKS ] [ STOCK_REPORTING_PERIODS ] [ E_STOCK_MARKET_PRICE_DATA ],
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Iterator: stockmarkets < MAX_STOCKS >
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;
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/* ** Hooks ** */
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/* ** Hooks ** */
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hook OnScriptInit( )
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{
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CreateStockMarket( 0, "The Mining Company", "MC", 10000000, 100 );
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return 1;
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}
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/* ** SQL Thread ** */
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thread Stock_UpdateReportingPeriods( stockid )
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{
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new
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rows = cache_get_row_count( );
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if ( rows )
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{
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for ( new row = 0; row < rows; row ++ )
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{
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g_stockMarketPriceData[ stockid ] [ row ] [ E_CURRENT_PRICE ] = cache_get_field_content_int( row, "CURRENT_PRICE" );
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g_stockMarketPriceData[ stockid ] [ row ] [ E_CURRENT_EARNINGS ] = cache_get_field_content_int( row, "CURRENT_EARNINGS" );
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g_stockMarketPriceData[ stockid ] [ row ] [ E_PREVIOUS_EARNINGS ] = cache_get_field_content_int( row, "PREVIOUS_EARNINGS" );
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}
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}
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return 1;
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}
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/* ** Command ** */
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CMD:increase( playerid, params[ ] ) {
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g_stockMarketPriceData[ 0 ] [ 0 ] [ E_CURRENT_EARNINGS ] += strval( params );
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return 1;
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}
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CMD:newreport( playerid, params[ ] ) {
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StockMarket_CreateReport( 0 );
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return 1;
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}
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CMD:stockmarkets( playerid, params[ ] )
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{
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szLargeString = ""COL_WHITE"Stock\t"COL_WHITE"Current Price\t"COL_WHITE"Market Capitalization\t"COL_WHITE"Price Change (24H)\n";
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foreach ( new s : stockmarkets )
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{
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printf("%d %d\n", g_stockMarketPriceData[ s ] [ 0 ] [ E_CURRENT_EARNINGS ], g_stockMarketPriceData[ s ] [ 1 ] [ E_CURRENT_EARNINGS ]);
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new Float: price_difference = ( ( float( g_stockMarketPriceData[ s ] [ 0 ] [ E_CURRENT_EARNINGS ] ) / float( g_stockMarketPriceData[ s ] [ 1 ] [ E_CURRENT_EARNINGS ] ) ) - 1.0 ) * 100.0;
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new current_price = g_stockMarketPriceData[ s ] [ 0 ] [ E_CURRENT_PRICE ];
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// prevent integer overflow (over 2.6B)
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new Float: market_cap_millions = ( float( g_stockMarketData[ s ] [ E_MAX_SHARES ] ) / 1000000.0 ) * ( float( current_price ) / 1000000.0 );
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new Float: market_cap_billions = market_cap_millions / 1000.0;
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format(
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szLargeString, sizeof( szLargeString ),
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"%s%s (%s)\t"COL_GREEN"%s\t$%s%s\t%s%s%%\n",
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szLargeString,
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g_stockMarketData[ s ] [ E_NAME ],
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g_stockMarketData[ s ] [ E_SYMBOL ],
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cash_format( current_price ),
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market_cap_billions > 1.0 ? number_format( market_cap_billions, .decimals = 2 ) : number_format( market_cap_millions, .decimals = 2 ),
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market_cap_billions > 1.0 ? ( "B" ) : ( "M" ),
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price_difference >= 0.0 ? ( COL_GREEN ) : ( COL_RED ),
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number_format( price_difference, .decimals = 2 )
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);
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}
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return ShowPlayerDialog( playerid, DIALOG_STOCK_MARKET, DIALOG_STYLE_TABLIST_HEADERS, ""COL_WHITE"Stock Market", szLargeString, "Select", "Close" );
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}
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/* ** Functions ** */
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/* ** Functions ** */
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stock CreateStockMarket( stockid, const name[ 64 ], const symbol[ 4 ], max_shares, ipo_price )
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{
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if ( ! Iter_Contains( stockmarkets, stockid ) )
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{
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strcpy( g_stockMarketData[ stockid ] [ E_NAME ], name );
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strcpy( g_stockMarketData[ stockid ] [ E_SYMBOL ], symbol );
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g_stockMarketData[ stockid ] [ E_MM_SHARES ] = max_shares;
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g_stockMarketData[ stockid ] [ E_MM_IPO_PRICE ] = ipo_price;
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// reset stock price information
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for ( new r = 0; r < sizeof( g_stockMarketPriceData[ ] ); r ++ ) {
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g_stockMarketPriceData[ stockid ] [ r ] [ E_CURRENT_PRICE ] = 0;
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g_stockMarketPriceData[ stockid ] [ r ] [ E_CURRENT_EARNINGS ] = 0;
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g_stockMarketPriceData[ stockid ] [ r ] [ E_PREVIOUS_EARNINGS ] = 0;
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}
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// load price information if there is
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mysql_tquery( dbHandle, sprintf( "SELECT * FROM `STOCK_REPORTS` WHERE `STOCK_ID`=%d ORDER BY `REPORTING_TIME` DESC LIMIT %d", stockid, sizeof( g_stockMarketPriceData[ ] ) ), "Stock_UpdateReportingPeriods", "d", stockid );
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// add to iterator
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Iter_Add( stockmarkets, stockid );
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}
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return stockid;
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}
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stock StockMarket_CreateReport( stockid )
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{
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new old_earnings = g_stockMarketPriceData[ stockid ] [ 0 ] [ E_CURRENT_EARNINGS ];
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new old_price = g_stockMarketPriceData[ stockid ] [ 0 ] [ E_CURRENT_PRICE ];
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// store temporary stock info
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new temp_stock_price_data[ MAX_STOCKS ] [ STOCK_REPORTING_PERIODS ] [ E_STOCK_MARKET_PRICE_DATA ];
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temp_stock_price_data = g_stockMarketPriceData;
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// shift all earnings by one
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for ( new r = 0; r < sizeof( g_stockMarketPriceData[ ] ) - 2; r ++ ) {
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g_stockMarketPriceData[ stockid ] [ r + 1 ] [ E_CURRENT_PRICE ] = temp_stock_price_data[ stockid ] [ r ] [ E_CURRENT_PRICE ];
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g_stockMarketPriceData[ stockid ] [ r + 1 ] [ E_CURRENT_EARNINGS ] = temp_stock_price_data[ stockid ] [ r ] [ E_CURRENT_EARNINGS ];
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g_stockMarketPriceData[ stockid ] [ r + 1 ] [ E_PREVIOUS_EARNINGS ] = temp_stock_price_data[ stockid ] [ r ] [ E_PREVIOUS_EARNINGS ];
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}
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// price difference
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new Float: price_change = float( g_stockMarketPriceData[ stockid ] [ 0 ] [ E_CURRENT_EARNINGS ] ) / float( old_earnings );
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// circuit breaker ... max 20% loss
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if ( price_change < 0.8 ) {
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price_change = 0.8;
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}
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new new_price = floatround( float( old_price ) * price_change );
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// minimum stock price should be $10
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if ( new_price < 1 ) {
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new_price = 1;
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}
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// set information
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g_stockMarketPriceData[ stockid ] [ 0 ] [ E_CURRENT_PRICE ] = new_price;
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g_stockMarketPriceData[ stockid ] [ 0 ] [ E_CURRENT_EARNINGS ] = 0; // set to 0
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g_stockMarketPriceData[ stockid ] [ 0 ] [ E_PREVIOUS_EARNINGS ] = old_earnings;
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// insert to database
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//
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erase(szLargeString);
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// shift all earnings by one
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for ( new r = 0; r < sizeof( g_stockMarketPriceData[ ] ); r ++ ) {
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format( szLargeString, 1024, "%s{%d,%d,%d}, ", szLargeString, g_stockMarketPriceData[ stockid ] [ r ] [ E_CURRENT_PRICE ], g_stockMarketPriceData[ stockid ] [ r ] [ E_CURRENT_EARNINGS ], g_stockMarketPriceData[ stockid ] [ r ] [ E_PREVIOUS_EARNINGS ] );
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}
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printf("%s\n",szLargeString);
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return 1;
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}
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stock StockMarket_GetCurrentPrice( stockid ) {
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return g_stockMarketPriceData[ stockid ] [ 0 ] [ E_CURRENT_PRICE ];
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}
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/*
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CREATE TABLE IF NOT EXISTS `STOCK_REPORTS` (
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`STOCK_ID` int(11),
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`CURRENT_PRICE` int(11),
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`CURRENT_EARNINGS` int(11),
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`PREVIOUS_EARNINGS` int(11),
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`REPORTING_TIME` TIMESTAMP default CURRENT_TIMESTAMP
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);
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*/
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