Implemented verbose damage modifier based on range

1 files changed, 16 insertions, 3 deletions

diff --git a/battles/src/BaseBattle.cpp b/battles/src/BaseBattle.cpp
index e102d79..604a607 100644
--- a/battles/src/BaseBattle.cpp
+++ b/battles/src/BaseBattle.cpp
@@ -1,5 +1,8 @@
 #include "BaseBattle.h"
 
+#include <algorithm>
+#include <cmath>
+
 #include <entt/entity/registry.hpp>
 #include <entt/signal/dispatcher.hpp>
 
@@ -105,6 +108,15 @@ BaseBattle::floating_movement(const float dt)
 }
 
 
+double
+effective_damage(const universe::TurretType& def, const double distance)
+{
+	const auto overflow = distance - def.optimal_range;
+	const auto falloff = std::max(0.0, overflow / def.optimal_range / def.falloff_modifier);
+	return def.base_damage * std::pow(def.falloff_intensity, std::pow(falloff, 2));
+}
+
+
 void
 BaseBattle::turrets(const float dt)
 {
@@ -123,9 +135,10 @@ BaseBattle::turrets(const float dt)
 			auto& target_points = _registry.get<HitPoints>(state.target);
 			const auto& target = _registry.get<Transform>(state.target);
 			const auto distance = transform.position - target.position;
-			if (def.range > distance.magnitude()) {
-				target_points.health -= def.base_damage;
-				_dispatcher.trigger(Hit{def.base_damage, entity, state.target});
+			const auto damage = effective_damage(def, distance.magnitude());
+			if (damage > 0.0) {
+				target_points.health -= damage;
+				_dispatcher.trigger(Hit{damage, entity, state.target});
 			}
 			control.reload = def.rate_of_fire;
 		}