Kukatz 3D  0.1
Török Attila szakdolgozata
projects/Kukatz 3D/src/followercamera.cpp
00001 /*
00002  * followercamera.cpp - Kukatz 3D
00003  * Copyright (c) 2011 - TÖRÖK Attila (torokati44@gmail.com)
00004  *
00005  * This software is provided 'as-is', without any express or implied
00006  * warranty. In no event will the authors be held liable for any damages
00007  * arising from the use of this software.
00008  *
00009  * Permission is granted to anyone to use this software for any purpose,
00010  * including commercial applications, and to alter it and redistribute it
00011  * freely, subject to the following restrictions:
00012  *
00013  *       1. The origin of this software must not be misrepresented; you must not
00014  *                      claim that you wrote the original software. If you use this software
00015  *                      in a product, an acknowledgment in the product documentation would be
00016  *                      appreciated but is not required.
00017  *
00018  *       2. Altered source versions must be plainly marked as such, and must not be
00019  *                      misrepresented as being the original software.
00020  *
00021  *       3. This notice may not be removed or altered from any source
00022  *                      distribution.
00023  */
00024 
00025 #include "followercamera.hpp"
00026 
00027 #include <iostream>
00028 
00029 #include "misc.hpp"
00030 
00031 FollowerCamera::FollowerCamera(Kukac* k_ptr):
00032         Camera(k_ptr->head->object->get_position() +
00033                 itof3(k_ptr->upward * 2 - k_ptr->direction),
00034                 k_ptr->head->object->get_position() +
00035                 itof3(k_ptr->direction * 2),
00036                 itof3(k_ptr->upward),
00037                 sf::Vector2i(0, 0), sf::Vector2i(0, 0)),
00038         kukac_ptr(k_ptr), distance(2)
00039 {
00040         update_object();
00041 }
00042 
00043 void FollowerCamera::update(float dt)
00044 {
00045         fov = 60.0f + kukac_ptr->get_speed() * 5.0f;
00046         
00047         float delta_dist = dt * kukac_ptr->get_speed();
00048         
00049         sf::Vector3f target_pos = kukac_ptr->head->object->get_position() +
00050                 itof3(kukac_ptr->upward * 2 - kukac_ptr->direction);
00051         
00052         sf::Vector3f target_center = kukac_ptr->head->object->get_position() +
00053                 itof3(kukac_ptr->direction * 2);
00054         
00055         pos += (target_pos - pos) * delta_dist;
00056         center += (target_center - center) * delta_dist;
00057         up += (itof3(kukac_ptr->upward) - up) * delta_dist;
00058         
00059         normalize(up);
00060         //clamp_to_distance(kukac_ptr->head->object->get_position(), distance, pos);
00061         
00062         update_object();
00063 }
00064 
00065 FollowerCamera::~FollowerCamera()
00066 {
00067         
00068 }
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