Dogcows Code - chaz/yoink/blob - src/Character.cc

   1
   2 /*******************************************************************************
   3
   4  Copyright (c) 2009, Charles McGarvey
   5  All rights reserved.
   6
   7  Redistribution   and   use  in  source  and  binary  forms,  with  or  without
   8  modification, are permitted provided that the following conditions are met:
   9
  10    * Redistributions  of  source  code  must retain the above copyright notice,
  11      this list of conditions and the following disclaimer.
  12    * Redistributions  in binary form must reproduce the above copyright notice,
  13      this  list of conditions and the following disclaimer in the documentation
  14      and/or other materials provided with the distribution.
  15
  16  THIS  SOFTWARE  IS  PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  17  AND  ANY  EXPRESS  OR  IMPLIED  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  19  DISCLAIMED.  IN  NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  20  FOR  ANY  DIRECT,  INDIRECT,  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  DAMAGES  (INCLUDING,  BUT  NOT  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  22  SERVICES;  LOSS  OF  USE,  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  23  CAUSED  AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  24  OR  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  25  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26
  27 *******************************************************************************/
  28
  29 #include <iostream>
  30
  31 #include "Character.hh"
  32 #include "Log.hh"
  33
  34
  35 Character::Character(const std::string& name) :
  36         tilemap_(name),
  37         animation_(name)
  38 {
  39         current.mass = 1.0;
  40         current.inverseMass = 1.0 / current.mass;
  41
  42         // gravity
  43         current.force = Mf::Vector2(0.0, -120.0);
  44
  45         // starting position
  46         current.position = Mf::Vector2(64.0, 64.0);
  47         current.momentum = Mf::Vector2(0.0, 0.0);
  48         current.recalculate();
  49
  50         previous = current;
  51
  52         updateContainers();
  53 }
  54
  55
  56 void Character::update(Mf::Scalar t, Mf::Scalar dt)
  57 {
  58         previous = current;
  59         Mf::integrate<State,Derivative>(current, t, dt);
  60
  61         animation_.update(t, dt);
  62
  63         updateContainers();
  64 }
  65
  66 void Character::updateContainers()
  67 {
  68         aabb_.init(Mf::Vector3(current.position[0]-16.0, current.position[1]-16.0, z),
  69                         Mf::Vector3(current.position[0]+16.0, current.position[1]+16.0, z));
  70         sphere_.point = Mf::Vector3(current.position[0], current.position[1], z);
  71         sphere_.radius = (aabb_.min - sphere_.point).length();
  72 }
  73
  74 void Character::handleEvent(const Mf::Event& event)
  75 {
  76         // really just for heroine...
  77
  78         Mf::Scalar force = 500.0;
  79
  80         Mf::Vector2 left = Mf::Vector2(-force, 0.0);
  81         Mf::Vector2 right = Mf::Vector2(force, 0.0);
  82         Mf::Vector2 down = Mf::Vector2(0.0, -force);
  83         Mf::Vector2 up = Mf::Vector2(0.0, force);
  84
  85         switch (event.type)
  86         {
  87                 case SDL_KEYDOWN:
  88                         if (event.key.keysym.sym == SDLK_a)
  89                         {
  90                                 current.force += left;
  91                         }
  92                         else if (event.key.keysym.sym == SDLK_d)
  93                         {
  94                                 current.force += right;
  95                         }
  96                         else if (event.key.keysym.sym == SDLK_s)
  97                         {
  98                                 current.force += down;
  99                         }
 100                         else if (event.key.keysym.sym == SDLK_w)
 101                         {
 102                                 current.force += up;
 103                         }
 104                         break;
 105
 106                 case SDL_KEYUP:
 107                         if (event.key.keysym.sym == SDLK_a)
 108                         {
 109                                 current.force -= left;
 110                         }
 111                         else if (event.key.keysym.sym == SDLK_d)
 112                         {
 113                                 current.force -= right;
 114                         }
 115                         else if (event.key.keysym.sym == SDLK_s)
 116                         {
 117                                 current.force -= down;
 118                         }
 119                         else if (event.key.keysym.sym == SDLK_w)
 120                         {
 121                                 current.force -= up;
 122                         }
 123                         break;
 124         }
 125
 126         //Mf::logInfo("current force [%f %f]", current.force[0], current.force[1]);
 127         //std::cerr << "current force: " << current.force << std::endl;
 128 }
 129
 130
 131 void Character::draw(Mf::Scalar alpha) const
 132 {
 133         State state = cml::lerp(previous, current, alpha);
 134
 135         glColor3f(1.0f, 1.0f, 1.0f);
 136         tilemap_.bind();
 137
 138         Mf::Tilemap::Index frame = animation_.getFrame();
 139
 140         Mf::Scalar coords[8];
 141         tilemap_.getTileCoords(frame, coords);
 142
 143         Mf::Scalar s = 16.0;
 144
 145         glBegin(GL_TRIANGLE_FAN);
 146                 glTexCoord2f(coords[0], coords[1]);
 147                 glVertex3(state.position[0]-s, state.position[1]-s, z);
 148                 glTexCoord2f(coords[2], coords[3]);
 149                 glVertex3(state.position[0]+s, state.position[1]-s, z);
 150                 glTexCoord2f(coords[4], coords[5]);
 151                 glVertex3(state.position[0]+s, state.position[1]+s, z);
 152                 glTexCoord2f(coords[6], coords[7]);
 153                 glVertex3(state.position[0]-s, state.position[1]+s, z);
 154         glEnd();
 155 }
 156
 157
 158 Mf::Tilemap& Character::getTilemap()
 159 {
 160         return tilemap_;
 161 }
 162
 163 Mf::Animation& Character::getAnimation()
 164 {
 165         return animation_;
 166 }
 167
 168
 169 /** vim: set ts=4 sw=4 tw=80: *************************************************/
 170