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 = Mf::Vector2(0.0, -2000.0);
  65         //current.force += -15.0 * x - 1.5 * current.velocity;
  66         current.force += -20.0 * (mag - d) * (x / mag) - 2.0 * current.velocity;
  67         current.force += userForce;
  68         current.recalculate();
  69         //std::cout << "force: " << current.momentum << std::endl;
  70
  71         Mf::integrate<State,Derivative>(current, t, dt);
  72
  73         animation_.update(t, dt);
  74
  75         updateContainers();
  76 }
  77
  78 void Character::updateContainers()
  79 {
  80         aabb_.init(Mf::Vector3(current.position[0]-16.0, current.position[1]-16.0, z),
  81                         Mf::Vector3(current.position[0]+16.0, current.position[1]+16.0, z));
  82         sphere_.point = Mf::Vector3(current.position[0], current.position[1], z);
  83         sphere_.radius = (aabb_.min - sphere_.point).length();
  84 }
  85
  86 void Character::handleEvent(const Mf::Event& event)
  87 {
  88         // really just for heroine...
  89
  90         Mf::Scalar force = 4000.0;
  91
  92         Mf::Vector2 left = Mf::Vector2(-force, 0.0);
  93         Mf::Vector2 right = Mf::Vector2(force, 0.0);
  94         Mf::Vector2 down = Mf::Vector2(0.0, -force);
  95         Mf::Vector2 up = Mf::Vector2(0.0, force);
  96
  97         switch (event.type)
  98         {
  99                 case SDL_KEYDOWN:
 100                         if (event.key.keysym.sym == SDLK_a)
 101                         {
 102                                 userForce += left;
 103                         }
 104                         else if (event.key.keysym.sym == SDLK_d)
 105                         {
 106                                 userForce += right;
 107                         }
 108                         else if (event.key.keysym.sym == SDLK_s)
 109                         {
 110                                 userForce += down;
 111                         }
 112                         else if (event.key.keysym.sym == SDLK_w)
 113                         {
 114                                 userForce += up;
 115                         }
 116                         break;
 117
 118                 case SDL_KEYUP:
 119                         if (event.key.keysym.sym == SDLK_a)
 120                         {
 121                                 userForce -= left;
 122                         }
 123                         else if (event.key.keysym.sym == SDLK_d)
 124                         {
 125                                 userForce -= right;
 126                         }
 127                         else if (event.key.keysym.sym == SDLK_s)
 128                         {
 129                                 userForce -= down;
 130                         }
 131                         else if (event.key.keysym.sym == SDLK_w)
 132                         {
 133                                 userForce -= up;
 134                         }
 135                         break;
 136         }
 137
 138         //Mf::logInfo("current force [%f %f]", current.force[0], current.force[1]);
 139         //std::cerr << "current force: " << current.force << std::endl;
 140 }
 141
 142
 143 void Character::draw(Mf::Scalar alpha) const
 144 {
 145         State state = cml::lerp(previous, current, alpha);
 146
 147         glColor3f(1.0f, 1.0f, 1.0f);
 148         tilemap_.bind();
 149
 150         Mf::Tilemap::Index frame = animation_.getFrame();
 151
 152         Mf::Scalar coords[8];
 153         tilemap_.getTileCoords(frame, coords);
 154
 155         Mf::Scalar s = 16.0;
 156
 157         glBegin(GL_TRIANGLE_FAN);
 158                 glTexCoord2f(coords[0], coords[1]);
 159                 glVertex3(state.position[0]-s, state.position[1]-s, z);
 160                 glTexCoord2f(coords[2], coords[3]);
 161                 glVertex3(state.position[0]+s, state.position[1]-s, z);
 162                 glTexCoord2f(coords[4], coords[5]);
 163                 glVertex3(state.position[0]+s, state.position[1]+s, z);
 164                 glTexCoord2f(coords[6], coords[7]);
 165                 glVertex3(state.position[0]-s, state.position[1]+s, z);
 166         glEnd();
 167
 168         glColor3f(0.0f, 0.0f, 0.0f);
 169         Mf::Texture::resetBind();
 170
 171         glBegin(GL_TRIANGLES);
 172                 glVertex3(480.0, 190.0, 64.0);
 173                 glVertex3(520.0, 190.0, 64.0);
 174                 glVertex3(500.0, 210.0, 64.0);
 175         glEnd();
 176
 177         glColor3f(1.0f, 1.0f, 1.0f);
 178 }
 179
 180
 181 Mf::Tilemap& Character::getTilemap()
 182 {
 183         return tilemap_;
 184 }
 185
 186 Mf::Animation& Character::getAnimation()
 187 {
 188         return animation_;
 189 }
 190
 191
 192 /** vim: set ts=4 sw=4 tw=80: *************************************************/
 193