X-Git-Url: http://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fworld%2FEntity.cpp;h=f116153e640a467eec61b434860e118e1369e150;hb=dbfcb12348b80e2582f710acb1e4ed0011889ba2;hp=b06dbc38b50ccfbdebdc6df3c96a36afaeb483a2;hpb=12744a2f68b3c9496076d6d7b6fb3581ff78472a;p=blank.git

diff --git a/src/world/Entity.cpp b/src/world/Entity.cpp
index b06dbc3..f116153 100644
--- a/src/world/Entity.cpp
+++ b/src/world/Entity.cpp
@@ -3,6 +3,7 @@
 #include "../model/Shape.hpp"
 
 #include <cmath>
+#include <glm/gtx/quaternion.hpp>
 #include <glm/gtx/transform.hpp>
 
 namespace {
@@ -14,40 +15,26 @@ blank::EntityModel::Buffer model_buffer;
 namespace blank {
 
 Entity::Entity() noexcept
-: shape(nullptr)
-, model()
+: model()
 , name("anonymous")
 , bounds()
 , velocity(0, 0, 0)
-, position(0, 0, 0)
 , chunk(0, 0, 0)
-, angular_velocity(1.0f, 0.0f, 0.0f, 0.0f)
-, rotation(1.0f)
+, angular_velocity(0.0f)
+, ref_count(0)
 , world_collision(false)
-, remove(false) {
+, dead(false) {
 
 }
 
 
-void Entity::SetShape(const Shape *s, const glm::vec3 &color) {
-	shape = s;
-	model_buffer.Clear();
-	shape->Vertices(model_buffer.vertices, model_buffer.normals, model_buffer.indices);
-	model_buffer.colors.resize(shape->VertexCount(), color);
-	model.Update(model_buffer);
+void Entity::Position(const Chunk::Pos &c, const glm::vec3 &pos) noexcept {
+	chunk = c;
+	model.Position(pos);
 }
 
-void Entity::SetShapeless() noexcept {
-	shape = nullptr;
-}
-
-
-void Entity::Velocity(const glm::vec3 &vel) noexcept {
-	velocity = vel;
-}
-
-void Entity::Position(const Block::Pos &pos) noexcept {
-	position = pos;
+void Entity::Position(const glm::vec3 &pos) noexcept {
+	glm::vec3 position(pos);
 	while (position.x >= Chunk::width) {
 		position.x -= Chunk::width;
 		++chunk.x;
@@ -72,27 +59,29 @@ void Entity::Position(const Block::Pos &pos) noexcept {
 		position.z += Chunk::depth;
 		--chunk.z;
 	}
+	model.Position(position);
 }
 
 void Entity::Move(const glm::vec3 &delta) noexcept {
-	Position(position + delta);
+	Position(Position() + delta);
 }
 
-void Entity::AngularVelocity(const glm::quat &v) noexcept {
-	angular_velocity = v;
+void Entity::Rotate(const glm::quat &delta) noexcept {
+	Orientation(delta * Orientation());
 }
 
-void Entity::Rotation(const glm::mat4 &rot) noexcept {
-	rotation = rot;
-}
-
-void Entity::Rotate(const glm::quat &delta) noexcept {
-	Rotation(rotation * glm::mat4_cast(delta));
+glm::mat4 Entity::ChunkTransform(const Chunk::Pos &chunk_offset) const noexcept {
+	const glm::vec3 translation = glm::vec3((chunk - chunk_offset) * Chunk::Extent());
+	return glm::translate(translation);
 }
 
 glm::mat4 Entity::Transform(const Chunk::Pos &chunk_offset) const noexcept {
-	const glm::vec3 chunk_pos = (chunk - chunk_offset) * Chunk::Extent();
-	return glm::translate(position + chunk_pos) * rotation;
+	const glm::vec3 translation = glm::vec3((chunk - chunk_offset) * Chunk::Extent()) + Position();
+	glm::mat4 transform(toMat4(Orientation()));
+	transform[3].x = translation.x;
+	transform[3].y = translation.y;
+	transform[3].z = translation.z;
+	return transform;
 }
 
 Ray Entity::Aim(const Chunk::Pos &chunk_offset) const noexcept {
@@ -104,14 +93,25 @@ Ray Entity::Aim(const Chunk::Pos &chunk_offset) const noexcept {
 	return Ray{ glm::vec3(from), glm::normalize(glm::vec3(to - from)) };
 }
 
-void Entity::Update(int dt) noexcept {
-	Move(velocity * float(dt));
-	Rotate(angular_velocity * float(dt));
+namespace {
+
+glm::quat delta_rot(const glm::vec3 &av, float dt) {
+	glm::vec3 half(av * dt * 0.5f);
+	float mag = length(half);
+	if (mag > 0.0f) {
+		float smag = std::sin(mag) / mag;
+		return glm::quat(std::cos(mag), half * smag);
+	} else {
+		return glm::quat(1.0f, 0.0f, 0.0f, 0.0f);
+	}
 }
 
+}
 
-void Entity::Draw() noexcept {
-	model.Draw();
+void Entity::Update(int dt) noexcept {
+	float fdt = float(dt);
+	Move(velocity * fdt);
+	Rotate(delta_rot(angular_velocity, fdt));
 }
 
 }