void Snow::render() { glPushAttrib(GL_CURRENT_BIT); glEnable(GL_BLEND); glBindTexture(GL_TEXTURE_2D, texture_id); float theta = camera->getTheta(); float phi = camera->getPhi(); float cosphi = qCos(phi); float x00 = qSin(phi) * qSin(theta) - qCos(theta); float x01 = -qSin(phi) * qSin(theta) - qCos(theta); float x10 = qSin(phi) * qSin(theta) + qCos(theta); float x11 = -qSin(phi) * qSin(theta) + qCos(theta); float z00 = qSin(phi) * qCos(theta) + qSin(theta); float z01 = -qSin(phi) * qCos(theta) + qSin(theta); float z10 = qSin(phi) * qCos(theta) - qSin(theta); float z11 = -qSin(phi) * qCos(theta) - qSin(theta); int count = 0; for (Particle &p : particles) { if (p.isdead) { if (count < snow_perframe) { count++; p.init(); } continue; } glColor4ub(p.r, p.g, p.b, 255); glNormal3f(qSin(theta), 0, qCos(theta)); glBegin(GL_QUADS); glTexCoord2f(0, 0); glVertex3f(p.x + p.size * x00, p.y - p.size * cosphi, p.z + p.size * z00); glTexCoord2f(1, 0); glVertex3f(p.x + p.size * x10, p.y - p.size * cosphi, p.z + p.size * z10); glTexCoord2f(1, 1); glVertex3f(p.x + p.size * x11, p.y + p.size * cosphi, p.z + p.size * z11); glTexCoord2f(0, 1); glVertex3f(p.x + p.size * x01, p.y + p.size * cosphi, p.z + p.size * z01); glEnd(); update_snow(p, count); } glPopMatrix(); glDisable(GL_BLEND); glPopAttrib(); for (; count < snow_perframe; ++count) particles.push_back(Particle()); }
void Racing::loop(float timeStep) { int width, height; bool joy_left_turn = false; bool joy_right_turn = false; double joy_turn_fact = 0.0; bool joy_paddling = false; bool joy_braking = false; bool joy_tricks = false; bool joy_charging = false; bool airborne; pp::Vec3d dir; float speed; float terrain_weights[NUM_TERRAIN_TYPES]; int new_terrain = 0; int slide_volume; unsigned int i; if (Benchmark::getMode() == Benchmark::AUTO){ m_paddling = true; } dir = players[0].vel; speed = dir.normalize(); //set max_speed if (speed > players[0].max_speed) players[0].max_speed=int(speed); airborne = (bool) ( players[0].pos.y > ( find_y_coord(players[0].pos.x, players[0].pos.z) + JUMP_MAX_START_HEIGHT ) ); width = getparam_x_resolution(); height = getparam_y_resolution(); fpsCounter.update(); update_audio(); clear_rendering_context(); fogPlane.setup(); // Joystick if ( is_joystick_active() ) { float joy_x; float joy_y; update_joystick(); joy_x = get_joystick_x_axis(); joy_y = get_joystick_y_axis(); if ( joy_x > 0.1 ) { joy_right_turn = true; joy_turn_fact = joy_x; } else if ( joy_x < -0.1 ) { joy_left_turn = true; joy_turn_fact = joy_x; } if ( getparam_joystick_brake_button() >= 0 ) { joy_braking = is_joystick_button_down( getparam_joystick_brake_button() ); } if ( !joy_braking ) { joy_braking = (bool) ( joy_y > 0.5 ); } if ( getparam_joystick_paddle_button() >= 0 ) { joy_paddling = is_joystick_button_down( getparam_joystick_paddle_button() ); } if ( !joy_paddling ) { joy_paddling = (bool) ( joy_y < -0.5 ); } if ( getparam_joystick_jump_button() >= 0 ) { joy_charging = is_joystick_button_down( getparam_joystick_jump_button() ); } if ( getparam_joystick_trick_button() >= 0 ) { joy_tricks = is_joystick_button_down( getparam_joystick_trick_button() ); } } // Update braking players[0].control.is_braking = (bool) ( m_braking || joy_braking ); if ( airborne ) { new_terrain = (1<<4); // Tricks if ( m_trickModifier || joy_tricks ) { if ( m_leftTurn || joy_left_turn ) { players[0].control.barrel_roll_left = true; } if ( m_rightTurn || joy_right_turn ) { players[0].control.barrel_roll_right = true; } if ( m_paddling || joy_paddling ) { players[0].control.front_flip = true; } if ( players[0].control.is_braking ) { players[0].control.back_flip = true; } } for(i=0;i<num_terrains;i++){ if ( !terrain_texture[i].sound.empty() && terrain_texture[i].soundactive==true) { halt_sound( terrain_texture[i].sound.c_str() ); terrain_texture[i].soundactive=false; } } } else { get_surface_type(players[0].pos.x, players[0].pos.z, terrain_weights); //Play sliding sound slide_volume = int(MIN( (((pow(players[0].control.turn_fact, 2)*128)) + (players[0].control.is_braking?128:0) + (players[0].control.jumping?128:0) + 20) * (speed/10), 128 )); for(i=0;i<num_terrains;i++){ if ( !terrain_texture[i].sound.empty() ) { if (terrain_weights[i] > 0 ){ set_sound_volume(terrain_texture[i].sound.c_str(), int(slide_volume * terrain_weights[i])); if (terrain_texture[i].soundactive==false){ play_sound(terrain_texture[i].sound.c_str() , -1 ); terrain_texture[i].soundactive=true; } } else if (terrain_texture[i].soundactive==true){ halt_sound( terrain_texture[i].sound.c_str() ); terrain_texture[i].soundactive=false; } } } } // Jumping calcJumpAmt( timeStep ); if ( ( m_charging || joy_charging ) && !players[0].control.jump_charging && !players[0].control.jumping ) { players[0].control.jump_charging = true; m_chargeStartTime = gameMgr->time; } if ( ( !m_charging && !joy_charging ) && players[0].control.jump_charging ) { players[0].control.jump_charging = false; players[0].control.begin_jump = true; } // Turning if ( ( m_leftTurn || joy_left_turn ) ^ (m_rightTurn || joy_right_turn ) ) { bool turning_left = (bool) ( m_leftTurn || joy_left_turn ); if ( joy_left_turn || joy_right_turn ) { players[0].control.turn_fact = joy_turn_fact; } else { players[0].control.turn_fact = (turning_left?-1:1); } players[0].control.turn_animation += (turning_left?-1:1) * 0.15 * timeStep / 0.05; players[0].control.turn_animation = MIN(1.0, MAX(-1.0, players[0].control.turn_animation)); } else { players[0].control.turn_fact = 0; // Decay turn animation if ( timeStep < ROLL_DECAY_TIME_CONSTANT ) { players[0].control.turn_animation *= 1.0 - timeStep/ROLL_DECAY_TIME_CONSTANT; } else { players[0].control.turn_animation = 0.0; } } //Paddling if ( ( m_paddling || joy_paddling ) && players[0].control.is_paddling == false ) { players[0].control.is_paddling = true; players[0].control.paddle_time = gameMgr->time; } //Play flying sound if (new_terrain & (1<<4)) { set_sound_volume("flying_sound", int(MIN(128, speed*2))); if (!(m_lastTerrain & (1<<4))) { play_sound( "flying_sound", -1 ); } } else { if (m_lastTerrain & (1<<4)) { halt_sound( "flying_sound" ); } } m_lastTerrain = new_terrain; //Tricks if ( players[0].control.barrel_roll_left || players[0].control.barrel_roll_right ) { players[0].control.barrel_roll_factor += ( players[0].control.barrel_roll_left ? -1 : 1 ) * 0.15 * timeStep / 0.05; if ( (players[0].control.barrel_roll_factor > 1) || (players[0].control.barrel_roll_factor < -1) ) { players[0].control.barrel_roll_factor = 0; players[0].control.barrel_roll_left = players[0].control.barrel_roll_right = false; } } if ( players[0].control.front_flip || players[0].control.back_flip ) { players[0].control.flip_factor += ( players[0].control.back_flip ? -1 : 1 ) * 0.15 * timeStep / 0.05; if ( (players[0].control.flip_factor > 1) || (players[0].control.flip_factor < -1) ) { players[0].control.flip_factor = 0; players[0].control.front_flip = players[0].control.back_flip = false; } } update_player_pos( players[0], timeStep ); //Track Marks add_track_mark( players[0] ); update_view( players[0], timeStep ); setup_view_frustum( players[0], NEAR_CLIP_DIST, getparam_forward_clip_distance() ); draw_sky(players[0].view.pos); draw_fog_plane(); set_course_clipping( true ); set_course_eye_point( players[0].view.pos ); setup_course_lighting(); render_course(); //Draw snow update_snow( timeStep, false, players[0].view.pos ); draw_snow(players[0].view.pos); draw_trees(); if ( getparam_draw_particles() ) { update_particles( timeStep ); draw_particles( players[0] ); } ModelHndl->draw_tux(); draw_tux_shadow(); HUD1.draw(players[0]); reshape( width, height ); winsys_swap_buffers(); gameMgr->time += timeStep; if (airborne) gameMgr->airbornetime += timeStep; if(Benchmark::getMode() == Benchmark::PAUSED){ set_game_mode(PAUSED); } }