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
  60         Mf::Vector2 x = current.position - Mf::Vector2(500.0, 200.0);
  61         Mf::Scalar mag = x.length();
  62         Mf::Scalar d = 50.0;
  63
  64         current.force = -5 * (current.position - Mf::Vector2(500.0, 200.0))
  65                 - 2.0 * current.velocity;
  66         current.recalculate();
  67         std::cout << "force: " << current.momentum << std::endl;
  68
  69         Mf::integrate<State,Derivative>(current, t, dt);
  70
  71         animation_.update(t, dt);
  72
  73         updateContainers();
  74 }
  75
  76 void Character::updateContainers()
  77 {
  78         aabb_.init(Mf::Vector3(current.position[0]-16.0, current.position[1]-16.0, z),
  79                         Mf::Vector3(current.position[0]+16.0, current.position[1]+16.0, z));
  80         sphere_.point = Mf::Vector3(current.position[0], current.position[1], z);
  81         sphere_.radius = (aabb_.min - sphere_.point).length();
  82 }
  83
  84 void Character::handleEvent(const Mf::Event& event)
  85 {
  86         // really just for heroine...
  87
  88         Mf::Scalar force = 500.0;
  89
  90         Mf::Vector2 left = Mf::Vector2(-force, 0.0);
  91         Mf::Vector2 right = Mf::Vector2(force, 0.0);
  92         Mf::Vector2 down = Mf::Vector2(0.0, -force);
  93         Mf::Vector2 up = Mf::Vector2(0.0, force);
  94
  95         switch (event.type)
  96         {
  97                 case SDL_KEYDOWN:
  98                         if (event.key.keysym.sym == SDLK_a)
  99                         {
 100                                 userForce += left;
 101                         }
 102                         else if (event.key.keysym.sym == SDLK_d)
 103                         {
 104                                 userForce += right;
 105                         }
 106                         else if (event.key.keysym.sym == SDLK_s)
 107                         {
 108                                 userForce += down;
 109                         }
 110                         else if (event.key.keysym.sym == SDLK_w)
 111                         {
 112                                 userForce += up;
 113                         }
 114                         break;
 115
 116                 case SDL_KEYUP:
 117                         if (event.key.keysym.sym == SDLK_a)
 118                         {
 119                                 userForce -= left;
 120                         }
 121                         else if (event.key.keysym.sym == SDLK_d)
 122                         {
 123                                 userForce -= right;
 124                         }
 125                         else if (event.key.keysym.sym == SDLK_s)
 126                         {
 127                                 userForce -= down;
 128                         }
 129                         else if (event.key.keysym.sym == SDLK_w)
 130                         {
 131                                 userForce -= up;
 132                         }
 133                         break;
 134         }
 135
 136         //Mf::logInfo("current force [%f %f]", current.force[0], current.force[1]);
 137         //std::cerr << "current force: " << current.force << std::endl;
 138 }
 139
 140
 141 void Character::draw(Mf::Scalar alpha) const
 142 {
 143         State state = cml::lerp(previous, current, alpha);
 144
 145         glColor3f(1.0f, 1.0f, 1.0f);
 146         tilemap_.bind();
 147
 148         Mf::Tilemap::Index frame = animation_.getFrame();
 149
 150         Mf::Scalar coords[8];
 151         tilemap_.getTileCoords(frame, coords);
 152
 153         Mf::Scalar s = 16.0;
 154
 155         glBegin(GL_TRIANGLE_FAN);
 156                 glTexCoord2f(coords[0], coords[1]);
 157                 glVertex3(state.position[0]-s, state.position[1]-s, z);
 158                 glTexCoord2f(coords[2], coords[3]);
 159                 glVertex3(state.position[0]+s, state.position[1]-s, z);
 160                 glTexCoord2f(coords[4], coords[5]);
 161                 glVertex3(state.position[0]+s, state.position[1]+s, z);
 162                 glTexCoord2f(coords[6], coords[7]);
 163                 glVertex3(state.position[0]-s, state.position[1]+s, z);
 164         glEnd();
 165
 166         glColor3f(0.0f, 0.0f, 0.0f);
 167         Mf::Texture::resetBind();
 168
 169         glBegin(GL_TRIANGLES);
 170                 glVertex3(480.0, 190.0, 64.0);
 171                 glVertex3(520.0, 190.0, 64.0);
 172                 glVertex3(500.0, 210.0, 64.0);
 173         glEnd();
 174
 175         glColor3f(1.0f, 1.0f, 1.0f);
 176 }
 177
 178
 179 Mf::Tilemap& Character::getTilemap()
 180 {
 181         return tilemap_;
 182 }
 183
 184 Mf::Animation& Character::getAnimation()
 185 {
 186         return animation_;
 187 }
 188
 189
 190 /** vim: set ts=4 sw=4 tw=80: *************************************************/
 191