X-Git-Url: http://git.localhorst.tv/?p=blobs.git;a=blobdiff_plain;f=src%2Fcreature%2FSituation.hpp;h=6b2bac0500f4dcc958040ce4fd8192693af51365;hp=f29d9b08b96b0e5c07c4bb588e5a1f0cfa896928;hb=b9af958c3f80a966bd31c622a45d0f3375bf2c3a;hpb=dd8b3145a03ed676b0ae6311c29fc3d68f666b15

diff --git a/src/creature/Situation.hpp b/src/creature/Situation.hpp
index f29d9b0..6b2bac0 100644
--- a/src/creature/Situation.hpp
+++ b/src/creature/Situation.hpp
@@ -16,20 +16,30 @@ class Situation {
 
 public:
 	struct State {
+		// position
 		glm::dvec3 pos;
+		// velocity
 		glm::dvec3 vel;
+		// face direction, normalized
+		glm::dvec3 dir;
 		State(
 			const glm::dvec3 &pos = glm::dvec3(0.0),
-			const glm::dvec3 &vel = glm::dvec3(0.0))
-		: pos(pos), vel(vel) { }
+			const glm::dvec3 &vel = glm::dvec3(0.0),
+			const glm::dvec3 &dir = glm::dvec3(0.0, 0.0, -1.0))
+		: pos(pos), vel(vel), dir(dir) { }
 	};
 	struct Derivative {
+		// velocity
 		glm::dvec3 vel;
+		// acceleration
 		glm::dvec3 acc;
+		// orientation adjust
+		glm::dvec3 turn;
 		Derivative(
 			const glm::dvec3 &vel = glm::dvec3(0.0),
-			const glm::dvec3 &acc = glm::dvec3(0.0))
-		: vel(vel), acc(acc) { }
+			const glm::dvec3 &acc = glm::dvec3(0.0),
+			const glm::dvec3 &turn = glm::dvec3(0.0))
+		: vel(vel), acc(acc), turn(turn) { }
 	};
 
 public:
@@ -59,6 +69,9 @@ public:
 	const glm::dvec3 &Velocity() const noexcept { return state.vel; }
 	bool Moving() const noexcept { return glm::length2(state.vel) < 0.00000001; }
 	void Move(const glm::dvec3 &dp) noexcept;
+
+	const glm::dvec3 &Heading() const noexcept { return state.dir; }
+
 	void SetPlanetSurface(world::Planet &, int srf, const glm::dvec3 &pos) noexcept;
 
 public: