27 lines
524 B
PHP
27 lines
524 B
PHP
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<?php
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class beta5_tech_checkDependencies {
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function beta5_tech_checkDependencies($lib) {
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$this->lib = $lib;
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$this->db = $this->lib->game->db;
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}
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// Checks whether a player has already researched a technology's dependencies
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function run($pid, $rid) {
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$q = $this->db->query("SELECT depends_on FROM research_dep WHERE research=$rid");
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if (!dbCount($q)) {
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return true;
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}
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$rv = true;
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while ($rv && $r = dbFetchArray($q)) {
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$rv = $rv && $this->lib->call('has', $pid, $r[0]);
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}
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return $rv;
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}
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}
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?>
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