X-Git-Url: http://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fworld%2FEntity.hpp;h=b140a08d95d7b21db850ef1966f841ffccf938f3;hb=3e7901a804ef85eea01adfb60274218748c0337b;hp=7e85591c89150f1c22e6a20604cca20a7c6eccca;hpb=4da2ae6f12d7cf4594edb2d560c5c112e9bcd094;p=blank.git

diff --git a/src/world/Entity.hpp b/src/world/Entity.hpp
index 7e85591..b140a08 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>
@@ -15,12 +17,33 @@
 namespace blank {
 
 class DirectionalLighting;
+class EntityController;
 class Shape;
+class World;
 
 class Entity {
 
 public:
 	Entity() noexcept;
+	~Entity() noexcept;
+
+	// note that when copying an entity which owns its controller, the
+	// original must outlive the copy, otherwise the copy ends up with
+	// an invalid controller pointer
+	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;
+	// entity uses shared controller
+	void SetController(EntityController &c) noexcept;
+	void UnsetController() noexcept;
+	EntityController &GetController() noexcept { return *ctrl; }
+	const EntityController &GetController() const noexcept { return *ctrl; }
 
 	Instance &GetModel() noexcept { return model; }
 	const Instance &GetModel() const noexcept { return model; }
@@ -32,22 +55,27 @@ 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; }
 
-	const glm::vec3 &TargetVelocity() const noexcept { return tgt_vel; }
-	void TargetVelocity(const glm::vec3 &v) noexcept { tgt_vel = v; }
+	float MaxVelocity() const noexcept { return max_vel; }
+	void MaxVelocity(float v) noexcept { max_vel = v; }
+	float MaxControlForce() const noexcept { return max_force; }
+	void MaxControlForce(float f) noexcept { max_force = f; }
+
+	glm::vec3 ControlForce(const EntityState &) const noexcept;
 
 	const glm::vec3 &Velocity() const noexcept { return state.velocity; }
-	void Velocity(const glm::vec3 &v) noexcept { state.velocity = v; }
 
-	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();
@@ -56,20 +84,35 @@ public:
 		return state.Diff(other.state);
 	}
 
-	/// direction is rotation axis, magnitude is speed in rad/s
-	const glm::vec3 &AngularVelocity() const noexcept { return state.ang_vel; }
-	void AngularVelocity(const glm::vec3 &v) noexcept { state.ang_vel = v; }
-
-	const glm::quat &Orientation() const noexcept { return state.orient; }
+	/// orientation of local coordinate system
 	void Orientation(const glm::quat &o) noexcept { state.orient = o; }
+	const glm::quat &Orientation() const noexcept { return state.orient; }
 
-	glm::mat4 Transform(const glm::ivec3 &reference) const noexcept {
-		return state.Transform(reference);
-	}
-	Ray Aim(const Chunk::Pos &chunk_offset) const noexcept;
+	/// orientation of head within local coordinate system, in radians
+	float Pitch() const noexcept { return state.pitch; }
+	float Yaw() const noexcept { return state.yaw; }
+	void TurnHead(float delta_pitch, float delta_yaw) noexcept;
+	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 the entity's local up vector
+	const glm::vec4 &Up() const noexcept { return model_transform[1]; }
+	/// 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 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 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; }
-	EntityState &GetState() noexcept { return state; }
 	const EntityState &GetState() const noexcept { return state; }
 
 	void Ref() noexcept { ++ref_count; }
@@ -79,25 +122,66 @@ public:
 	bool Dead() const noexcept { return dead; }
 	bool CanRemove() const noexcept { return dead && ref_count <= 0; }
 
+	void Update(World &, float dt);
+
 	void Render(const glm::mat4 &M, DirectionalLighting &prog) noexcept {
 		if (model) model.Render(M, prog);
 	}
 
 private:
+	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;
 
 	std::uint32_t id;
 	std::string name;
 
 	AABB bounds;
+	float radius;
 	EntityState state;
-	glm::vec3 tgt_vel;
+
+	/// 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 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;
 
 	bool world_collision;
 	bool dead;
 
+	bool owns_controller;
+
 };
 
 }