From 93882f79b956dda3c2aa85930c50f3578156498f Mon Sep 17 00:00:00 2001
From: Petr Baudis <pasky@ucw.cz>
Date: Sun, 27 Nov 2011 02:32:59 +0100
Subject: [PATCH] Track agent energy

Base energy, move energy
---
 agent.cc      | 4 +++-
 agent.h       | 9 +++++++--
 connection.cc | 4 ++--
 connection.h  | 2 +-
 world.h       | 9 +++++++++
 5 files changed, 22 insertions(+), 6 deletions(-)
 create mode 100644 world.h

diff --git a/agent.cc b/agent.cc
index f9169ae..0688e00 100644
--- a/agent.cc
+++ b/agent.cc
@@ -19,6 +19,8 @@ agent::put_at(class tile &t)
 bool
 agent::move_dir(int dir_x, int dir_y)
 {
+	energy -= world::move_cost;
+
 	class tile *t2 = &tile->tile_in_dir(dir_x, dir_y);
 	if (!t2->on_agent_enter(*this))
 		return false;
@@ -54,7 +56,7 @@ agent::on_senses_update(void)
 		tile->tile_in_dir(0, 1).symbol(),
 		tile->tile_in_dir(-1, 0).symbol(),
 	};
-	conn->senses(tick_id, around);
+	conn->senses(tick_id, energy, around);
 }
 
 agent::~agent()
diff --git a/agent.h b/agent.h
index 714f1e1..f9bf0f6 100644
--- a/agent.h
+++ b/agent.h
@@ -2,19 +2,24 @@
 #define BRMLIFE__AGENT_H
 
 #include "map.h"
+#include "world.h"
 
 class connection;
 
 class agent {
 public:
 	int id;
-	class tile *tile;
 	class connection *conn;
 
+	class tile *tile;
+
+	int energy;
+
 	agent(int id_, class tile &tile_, class connection *conn_)
-	: id (id_), tile (&tile_), conn (conn_)
+	: id (id_), conn (conn_), tile (&tile_)
 	{
 		put_at(tile_);
+		energy = world::newborn_energy;
 	};
 
 	bool move_dir(int dir_x, int dir_y);
diff --git a/connection.cc b/connection.cc
index 9832ec3..454538d 100644
--- a/connection.cc
+++ b/connection.cc
@@ -11,10 +11,10 @@
 #include "connection.h"
 
 void
-connection::senses(int tick_id, char around[4])
+connection::senses(int tick_id, int energy, char around[4])
 {
 	char buf[1024];
-	snprintf(buf, sizeof(buf), "tick %d\naround %c%c%c%c\n\n", tick_id, around[0], around[1], around[2], around[3]);
+	snprintf(buf, sizeof(buf), "tick %d\nenergy %d\naround %c%c%c%c\n\n", tick_id, energy, around[0], around[1], around[2], around[3]);
 
 	pthread_mutex_lock(&buf_lock);
 	out_buf.append(buf);
diff --git a/connection.h b/connection.h
index b956ac9..36f98df 100644
--- a/connection.h
+++ b/connection.h
@@ -26,7 +26,7 @@ public:
 		close(fd);
 	}
 
-	void senses(int tick_id, char around[4]);
+	void senses(int tick_id, int energy, char around[4]);
 	void actions(class agent *);
 
 	void cancel(void);
diff --git a/world.h b/world.h
new file mode 100644
index 0000000..41d91f4
--- /dev/null
+++ b/world.h
@@ -0,0 +1,9 @@
+#ifndef BRMLIFE__WORLD_H
+#define BRMLIFE__WORLD_H
+
+struct world {
+	const static int newborn_energy = 500;
+	const static int move_cost = 10;
+};
+
+#endif