X-Git-Url: https://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fworld%2FEntity.hpp;h=e38e0b449e79bf41eae31c4800a7bc10ad04d6ea;hb=110ef77a019384fccbbf33649955bcc064a6399e;hp=efd9224a9f86f7f7e25fbc0dd42bb7d116ea56bf;hpb=8e9e2bb4b2dd5a4100f4531628ab58002fe253c1;p=blank.git

diff --git a/src/world/Entity.hpp b/src/world/Entity.hpp
index efd9224..e38e0b4 100644
--- a/src/world/Entity.hpp
+++ b/src/world/Entity.hpp
@@ -2,9 +2,11 @@
 #define BLANK_WORLD_ENTITY_HPP_
 
 #include "Chunk.hpp"
+#include "EntityDerivative.hpp"
 #include "EntityState.hpp"
+#include "Steering.hpp"
+#include "../geometry/primitive.hpp"
 #include "../model/Instance.hpp"
-#include "../model/geometry.hpp"
 
 #include <cstdint>
 #include <string>
@@ -17,6 +19,7 @@ namespace blank {
 class DirectionalLighting;
 class EntityController;
 class Shape;
+class World;
 
 class Entity {
 
@@ -30,6 +33,9 @@ public:
 	Entity(const Entity &) noexcept;
 	Entity &operator =(const Entity &) = delete;
 
+	Steering &GetSteering() noexcept { return steering; }
+	const Steering &GetSteering() const noexcept { return steering; }
+
 	bool HasController() const noexcept { return ctrl; }
 	// entity takes over ownership of controller
 	void SetController(EntityController *c) noexcept;
@@ -49,7 +55,9 @@ public:
 	void Name(const std::string &n) { name = n; }
 
 	const AABB &Bounds() const noexcept { return bounds; }
-	void Bounds(const AABB &b) noexcept { bounds = b; }
+	// get distance between local origin and farthest vertex
+	float Radius() const noexcept { return radius; }
+	void Bounds(const AABB &b) noexcept { bounds = b; radius = b.OriginRadius(); }
 
 	bool WorldCollidable() const noexcept { return world_collision; }
 	void WorldCollidable(bool b) noexcept { world_collision = b; }
@@ -63,15 +71,11 @@ public:
 
 	const glm::vec3 &Velocity() const noexcept { return state.velocity; }
 
-	bool Moving() const noexcept {
-		return dot(Velocity(), Velocity()) > std::numeric_limits<float>::epsilon();
-	}
-
-	const glm::vec3 &Position() const noexcept { return state.block_pos; }
-	void Position(const glm::ivec3 &, const glm::vec3 &) noexcept;
-	void Position(const glm::vec3 &) noexcept;
+	const ExactLocation::Fine &Position() const noexcept { return state.pos.block; }
+	void Position(const ExactLocation::Coarse &, const ExactLocation::Fine &) noexcept;
+	void Position(const ExactLocation::Fine &) noexcept;
 
-	const glm::ivec3 ChunkCoords() const noexcept { return state.chunk_pos; }
+	const glm::ivec3 ChunkCoords() const noexcept { return state.pos.chunk; }
 
 	glm::vec3 AbsolutePosition() const noexcept {
 		return state.AbsolutePosition();
@@ -81,6 +85,7 @@ public:
 	}
 
 	/// orientation of local coordinate system
+	void Orientation(const glm::quat &o) noexcept { state.orient = o; }
 	const glm::quat &Orientation() const noexcept { return state.orient; }
 
 	/// orientation of head within local coordinate system, in radians
@@ -90,15 +95,22 @@ public:
 	void SetHead(float pitch, float yaw) noexcept;
 
 	/// get a transform for this entity's coordinate space
+	const glm::mat4 &Transform() const noexcept { return model_transform; }
+	/// get a transform for this entity's coordinate space relative to reference chunk
 	glm::mat4 Transform(const glm::ivec3 &reference) const noexcept;
-	/// get a transform for this entity's view space
+	/// get a transform for this entity's view space relative to reference chunk
 	glm::mat4 ViewTransform(const glm::ivec3 &reference) const noexcept;
 	/// get a ray in entity's face direction originating from center of vision
-	Ray Aim(const Chunk::Pos &chunk_offset) const noexcept;
+	Ray Aim(const ExactLocation::Coarse &chunk_offset) const noexcept;
 
+	/// true if this entity's position will change (significantly) the next update
+	bool Moving() const noexcept { return speed > 0.0f; }
+	/// magnitude of velocity
+	float Speed() const noexcept { return speed; }
+	/// normalized velocity or heading if standing still
 	const glm::vec3 &Heading() const noexcept { return heading; }
 
-	void SetState(const EntityState &s) noexcept { state = s; UpdateModel(); }
+	void SetState(const EntityState &s) noexcept { state = s; }
 	const EntityState &GetState() const noexcept { return state; }
 
 	void Ref() noexcept { ++ref_count; }
@@ -108,18 +120,33 @@ public:
 	bool Dead() const noexcept { return dead; }
 	bool CanRemove() const noexcept { return dead && ref_count <= 0; }
 
-	void Update(float dt);
+	void Update(World &, float dt);
 
 	void Render(const glm::mat4 &M, DirectionalLighting &prog) noexcept {
 		if (model) model.Render(M, prog);
 	}
 
 private:
-	void UpdateModel() noexcept;
-	void UpdateView() noexcept;
+	void UpdatePhysics(World &, float dt);
+	void UpdateTransforms() noexcept;
 	void UpdateHeading() noexcept;
+	void UpdateModel(float dt) noexcept;
+public:
+	// temporarily made public so AI can use it until it's smoothed out to be suitable for players, too
+	void OrientBody(float dt) noexcept;
+private:
+	void OrientHead(float dt) noexcept;
+
+	EntityDerivative CalculateStep(
+		World &,
+		const EntityState &cur,
+		float dt,
+		const EntityDerivative &prev
+	) const;
+
 
 private:
+	Steering steering;
 	EntityController *ctrl;
 	Instance model;
 
@@ -127,17 +154,23 @@ private:
 	std::string name;
 
 	AABB bounds;
+	float radius;
 	EntityState state;
 
-	/// local transform of eyes
+	/// chunk to model space
+	glm::mat4 model_transform;
+	/// model to view space
 	/// if this entity has no model, the eyes are assumed to
-	/// be at local origin and oriented towards -Z
-	glm::mat4 view_local;
-	/// normalized velocity or heading if standing still
+	/// be at origin and oriented towards pitch of model space
+	glm::mat4 view_transform;
+	float speed;
 	glm::vec3 heading;
 
 	// TODO: I'd prefer a drag solution
 	float max_vel;
+	// TODO: split max_force into (local) axes?
+	//       e.g. players may want to disable vertical thrust under certain
+	//       conditions (e.g. "walking" ^^)
 	float max_force;
 
 	int ref_count;