1 files changed, 60 insertions, 0 deletions
diff --git a/sim/src/ai.cpp b/sim/src/ai.cpp
new file mode 100644
index 0000000..1f2a4ec
--- /dev/null
+++ b/sim/src/ai.cpp
@@ -0,0 +1,60 @@
+#include "ai.h"
+
+#include <kurator/sim/components.h>
+#include <kurator/sim/State.h>
+#include <kurator/sim/weapons.h>
+
+#include "TeamManager.h"
+
+
+namespace kurator
+{
+namespace sim
+{
+
+
+void
+pick_random_targets(State& ctx, TeamManager& manager)
+{
+	auto view = ctx.registry.view<Team, AIShip>();
+	for (auto&& [entity, team, ai] : view.each()) {
+		if (!ctx.registry.valid(ai.target))
+			ai.target = manager.random(team.id);
+	}
+}
+
+
+void
+keep_at_range(State& ctx)
+{
+	auto view = ctx.registry.view<Transform, AIShip>();
+	for (auto&& [entity, self, ai] : view.each()) {
+		if (!ctx.registry.valid(ai.target))
+			continue;
+		const auto target = ctx.registry.get<Transform>(ai.target);
+		const auto offset = target.position - self.position;
+		ai.destination = target.position - offset.normalized().scale(ai.keep_at_range);
+	}
+}
+
+
+void
+shoot_at_targets(State& ctx)
+{
+	auto view = ctx.registry.view<Turret>();
+	for (auto&& [entity, turret] : view.each()) {
+		if (!ctx.registry.all_of<AIShip, Transform>(turret.owner))
+			continue;
+		const auto& [state, transform] = ctx.registry.get<AIShip, Transform>(turret.owner);
+		if (!ctx.registry.valid(state.target))
+			continue;
+		const auto& target = ctx.registry.get<Transform>(state.target);
+		const auto distance = transform.position.distance(target.position);
+		if (distance <= turret.type.effective_range())
+			turret.shoot_at(ctx, state.target, distance);  // passing distance here is wrong
+	}
+}
+
+
+}  // namespace sim
+}  // namespace kurator