nuclear@1: #include "opengl.h"
nuclear@1: #include "ship.h"
nuclear@1: 
nuclear@1: Ship::Ship()
nuclear@1: {
nuclear@1: 	friction = 0.2;
nuclear@1: }
nuclear@1: 
nuclear@1: void Ship::accelerate(double a)
nuclear@1: {
nuclear@1: 	velocity += get_direction() * a;
nuclear@1: }
nuclear@1: 
nuclear@1: void Ship::turn(double yaw, double pitch)
nuclear@1: {
nuclear@1: 	Quaternion qyaw(Vector3(0, 1, 0), yaw);
nuclear@1: 	Quaternion qpitch(Vector3(1, 0, 0), pitch);
nuclear@1: 
nuclear@1: 	rot *= qpitch;
nuclear@1: 	rot *= qyaw;
nuclear@1: }
nuclear@1: 
nuclear@1: void Ship::update(time_sec_t dt)
nuclear@1: {
nuclear@1: 	pos += velocity * dt;
nuclear@1: 	velocity -= velocity * friction * dt;
nuclear@1: }
nuclear@1: 
nuclear@1: const Vector3 &Ship::get_position() const
nuclear@1: {
nuclear@1: 	return pos;
nuclear@1: }
nuclear@1: 
nuclear@1: Vector3 Ship::get_direction() const
nuclear@1: {
nuclear@2: 	static const Vector3 dir{0, 0, -1};
nuclear@1: 	return dir.transformed(rot);
nuclear@1: }
nuclear@1: 
nuclear@1: Matrix4x4 Ship::get_matrix() const
nuclear@1: {
nuclear@2: 	Matrix3x3 rmat = rot.get_rotation_matrix().transposed();
nuclear@2: 	Matrix4x4 tmat;
nuclear@2: 	tmat.set_translation(pos);
nuclear@2: 
nuclear@2: 	return tmat * Matrix4x4(rmat);
nuclear@1: }
nuclear@1: 
nuclear@1: void Ship::dbg_draw() const
nuclear@1: {
nuclear@1: 	glPushAttrib(GL_POINT_BIT | GL_ENABLE_BIT);
nuclear@1: 
nuclear@1: 	glPointSize(3.0);
nuclear@1: 	glDisable(GL_LIGHTING);
nuclear@1: 
nuclear@1: 	glBegin(GL_LINES);
nuclear@1: 	glColor3f(0, 0, 1);
nuclear@1: 	glVertex3f(pos.x, pos.y, pos.z);
nuclear@1: 
nuclear@1: 	Vector3 end = pos + get_direction();
nuclear@1: 	glVertex3f(end.x, end.y, end.z);
nuclear@1: 	glEnd();
nuclear@1: 
nuclear@1: 	glBegin(GL_POINTS);
nuclear@1: 	glColor3f(1, 0, 0);
nuclear@1: 	glVertex3f(pos.x, pos.y, pos.z);
nuclear@1: 	glEnd();
nuclear@1: 
nuclear@2: 	glMatrixMode(GL_MODELVIEW);
nuclear@2: 	glPushMatrix();
nuclear@2: 	mult_gl_matrix(get_matrix());
nuclear@2: 
nuclear@2: 	glScalef(1, 1, -1);
nuclear@2: 	glColor3f(1, 1, 0);
nuclear@2: 	glutWireCone(0.1, 0.6, 12, 2);
nuclear@2: 
nuclear@2: 	glPopMatrix();
nuclear@2: 
nuclear@1: 	glPopAttrib();
nuclear@1: }