eleni.mutantstargoat.com Git - ludumice/blob - src/tentacle.cc

   1 #include <GL/gl.h>
   2 #include "tentacle.h"
   3
   4 Tentacle::Tentacle()
   5 {
   6 }
   7
   8 Tentacle::~Tentacle()
   9 {
  10 }
  11
  12 bool
  13 Tentacle::init()
  14 {
  15         for (int i=0; i<5; i++) {
  16                 add_control_point(Vec3(0.5, i / 10.0, 0.0));
  17         }
  18         return true;
  19 }
  20
  21 void
  22 Tentacle::add_control_point(const Vec3 &point)
  23 {
  24         cpoints.push_back(point);
  25 }
  26
  27 void
  28 Tentacle::draw(long time)
  29 {
  30         glLineWidth(2.0);
  31         glBegin(GL_LINE_STRIP);
  32         glColor3f(0.0, 0.0, 1.0);
  33         for(size_t i=0; i<cpoints.size(); i++) {
  34                 float y = cpoints[i].y;
  35                 float offs = gph::noise(y, time * 0.0005 * y);
  36                 glVertex3f(cpoints[i].x + offs, y, cpoints[i].z + offs);
  37
  38         }
  39         glEnd();
  40
  41         // XXX DEBUG
  42         glDisable(GL_DEPTH_TEST);
  43         glPointSize(5.0);
  44         glBegin(GL_POINTS);
  45         glColor3f(1.0, 0.0, 0.0);
  46         for(size_t i=0; i<cpoints.size(); i++) {
  47                 float y = cpoints[i].y;
  48                 float offs = gph::noise(y, time * 0.0005 * y);
  49                 glVertex3f(cpoints[i].x + offs, y, cpoints[i].z + offs);
  50         }
  51         glEnd();
  52         glEnable(GL_DEPTH_TEST);
  53 }