From de7a604e52a3ae55d2ab7cb44f635810f237b3b1 Mon Sep 17 00:00:00 2001
From: Petr Baudis <pasky@ucw.cz>
Date: Sun, 27 Nov 2011 02:54:52 +0100
Subject: [PATCH] Dead bodies have (slowly decaying) energy

---
 agent.cc | 7 ++++++-
 world.h  | 3 +++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/agent.cc b/agent.cc
index d63f14d..a6dfeb1 100644
--- a/agent.cc
+++ b/agent.cc
@@ -34,6 +34,7 @@ void
 agent::die(void)
 {
 	dead = true;
+	energy = world::dead_body_energy;
 }
 
 void
@@ -50,9 +51,13 @@ agent::on_tick(void)
 {
 	if (!dead) {
 		energy += world::sun_energy;
-
 		if (energy <= 0)
 			die();
+
+	} else {
+		energy += world::dead_decay;
+		if (energy < 0)
+			energy = 0;
 	}
 }
 
diff --git a/world.h b/world.h
index dbfad88..e8afd4c 100644
--- a/world.h
+++ b/world.h
@@ -5,6 +5,9 @@ struct world {
 	const static int newborn_energy = 500;
 	const static int move_cost = 10;
 	const static int sun_energy = 1;
+
+	const static int dead_body_energy = 500;
+	const static int dead_decay = -1;
 };
 
 #endif