From 9c91a9767b570fdc3c3e19e1f452f9a8257f9999 Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Sat, 18 Sep 2010 18:50:55 +0000
Subject: trade updates

---
 src/game/base/cargo.cc | 133 ++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 131 insertions(+), 2 deletions(-)

(limited to 'src/game/base/cargo.cc')

diff --git a/src/game/base/cargo.cc b/src/game/base/cargo.cc
index 258aecf..420d4d3 100644
--- a/src/game/base/cargo.cc
+++ b/src/game/base/cargo.cc
@@ -6,16 +6,86 @@
 
 #include "base/game.h"
 #include "base/cargo.h"
+#include "filesystem/inifile.h"
 #include "auxiliary/functions.h"
 #include "sys/sys.h"
 
 namespace game
 {
 
-/* ---- class Cargo -------------------------------------------- */
-
 core::InfoType *Cargo::cargo_infotype = 0;
 
+// loads cargo types from ini file
+bool Cargo::init()
+{
+
+	// initialize commodities InfoType
+	Cargo::cargo_infotype = new core::InfoType("cargo");
+	
+	filesystem::IniFile cargoini;
+	cargoini.open("cargo");
+	if (!cargoini.is_open()) {
+		con_error << "Could not open " << cargoini.name() << "!" << std::endl;
+		return false;
+	}
+
+	con_print << "^BLoading cargo..." << std::endl;
+	
+	size_t count = 0;
+	
+	Cargo *cargo = 0;
+	std::string str;
+	long l;
+	
+	while (cargoini.getline()) {
+		if (cargoini.got_key()) {
+		
+			if (cargoini.section().compare("cargo") == 0) {
+				if (cargoini.got_key_label("label", str)) {
+					cargo->set_label(std::string(str));
+					count++;
+					continue;
+					
+				} else if (cargoini.got_key_string("name", str)) {
+					cargo->set_name(str);
+					continue;
+
+				} else if (cargoini.got_key_string("info", str)) {
+					cargo->add_text(str);
+					continue;
+					
+				} else if (cargoini.got_key_string("model", str)) {
+					cargo->set_modelname(str);
+					continue;
+				
+				} else if (cargoini.got_key_long("price", l)) {
+					cargo->set_price(l);
+					continue;
+				} else {
+					cargoini.unkown_key();
+				}
+			}
+			
+		} else if (cargoini.got_section()) {
+		
+			if (cargoini.got_section("cargo")) {
+				cargo = new Cargo();
+				
+			} else if (cargoini.got_section()) {
+				cargoini.unknown_section();
+			}		
+		}
+	}
+	
+	// add cargo infos
+	con_debug << "  " << cargoini.name() << " " << count << " cargo types" << std::endl;
+	
+	cargoini.close();
+	return true;
+}
+
+/* ---- class Cargo -------------------------------------------- */
+
 Cargo::Cargo() : core::Info(cargo_infotype)
 {
 }
@@ -33,6 +103,65 @@ Cargo *Cargo::find(const std::string & label)
 	return (Cargo *) core::Info::find(cargo_infotype, label);
 }
 
+// main 'buy cargo' function
+void Cargo::buy(core::EntityControlable *buyer, core::Entity *seller, const int amount)
+{
+	if (!buyer || !seller)
+		return;
+	
+	if (!buyer->owner()) 
+		return;
+	
+	if (!buyer->inventory() || !seller->inventory()) {
+		return;
+	}
+	
+	if (!amount) {
+		return;
+	}
+	
+	core::Item *buyer_item = buyer->inventory()->find(this);
+	core::Item *seller_item = seller->inventory()->find(this);
+	
+	if (!seller_item) {
+		if (buyer->owner()) {
+			buyer->owner()->send("^B" + seller->name() + " ^Bdoes not sell " + name());
+		}
+		return;	
+	}
+	
+	int negotiated_amount = amount;
+	int negotiated_price = seller_item->price();
+	long cash = buyer->owner()->credits();
+	
+	// negative means 'as much as possible'
+	if (negotiated_amount < 0) {
+		negotiated_amount = cash / negotiated_price;
+	}
+	
+	if (cash < negotiated_amount * negotiated_price) {
+		negotiated_amount = cash / negotiated_price;
+	}
+	if (!negotiated_amount) {
+		buyer->owner()->send("^WCan not afford transaction!");
+		return;
+	}		
+	
+	// TODO cargo size check
+	
+	if (!buyer_item) {
+		buyer_item = new core::Item(this);
+		buyer->inventory()->add(buyer_item);
+	}
+	buyer_item->inc_amount(negotiated_amount);
+	buyer->owner()->set_credits(buyer->owner()->credits() - negotiated_price * negotiated_amount);
+	
+	// send a cargo purchased message
+	std::stringstream msgstr;
+	msgstr << "^BPurchased " << negotiated_amount << " " << aux::plural("unit", negotiated_amount) << " of " << name() << " for " << negotiated_price * negotiated_amount << " credits";
+	buyer->owner()->send(msgstr.str());
+	buyer->owner()->sound("game/buy");
+}
 
 } // namespace game
 
-- 
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