src/SignManager.cxx

   1 /*
   2  * SignManager.cxx
   3  * Daniel Nelson - 9/14/0
   4  *
   5  * Copyright (C) 2000  Daniel Nelson
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version 2
  10  * of the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20  *
  21  * Daniel Nelson - aluminumangel.org
  22  * 174 W. 18th Ave.
  23  * Columbus, OH  43210
  24  *
  25  * Handles all the little reward signs.
  26  */
  27
  28 #include "SignManager.h"
  29
  30 #include "Game.h"
  31 #include "Random.h"
  32
  33 int SignManager::sign_count;
  34 Sign SignManager::signs[DC_MAX_SIGN_NUMBER];
  35
  36 // maximum levels for each sign type
  37 const int maximum_levels[3]
  38  = { 8, 10, 8 };
  39
  40 // which sign texture contains which signs
  41 const int texture_mapping[3][11]
  42  = { { 0, 0, 0, 0, 0, 0, 1, 1, 1 },
  43      { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
  44      { 1, 1, 1, 1, 1, 1, 1, 1, 1 } };
  45
  46 // where a sign's subtexture is located
  47 const GLfloat subtexture_s_mapping[3][11]
  48  = { { 0.0f, 0.0f, DC_SIGN_SMALL_SUBTEX_COORD_S, DC_SIGN_SMALL_SUBTEX_COORD_S,
  49        2.0f * DC_SIGN_SMALL_SUBTEX_COORD_S, 2.0f * DC_SIGN_SMALL_SUBTEX_COORD_S,
  50        0.0f, 0.0f, 0.0f },
  51      { 0.0f, 1.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  52        DC_SIGN_LARGE_SUBTEX_COORD_S, DC_SIGN_LARGE_SUBTEX_COORD_S,
  53        DC_SIGN_LARGE_SUBTEX_COORD_S, 2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  54        2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  55        2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  56        3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S },
  57      { 3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  58        3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  59        3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  60        3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  61        3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S } };
  62 const GLfloat subtexture_t_mapping[3][11]
  63  = { { 0.0f, DC_SIGN_SMALL_SUBTEX_COORD_T, 0.0f, DC_SIGN_SMALL_SUBTEX_COORD_T,
  64        0.0f, DC_SIGN_SMALL_SUBTEX_COORD_T, 0.0f, DC_SIGN_LARGE_SUBTEX_COORD_T,
  65        2.0f * DC_SIGN_LARGE_SUBTEX_COORD_T },
  66      { 3.0f * DC_SIGN_LARGE_SUBTEX_COORD_T, 0.0f, DC_SIGN_LARGE_SUBTEX_COORD_T,
  67        2.0f * DC_SIGN_LARGE_SUBTEX_COORD_T, 3.0f * DC_SIGN_LARGE_SUBTEX_COORD_T,
  68        0.0f, DC_SIGN_LARGE_SUBTEX_COORD_T, 2.0f * DC_SIGN_LARGE_SUBTEX_COORD_T,
  69        3.0f * DC_SIGN_LARGE_SUBTEX_COORD_T, 0.0f,
  70        DC_SIGN_LARGE_SUBTEX_COORD_T },
  71      { 2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  72        2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  73        2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  74        2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  75        2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S } };
  76
  77 void SignManager::initialize (   )
  78 {
  79   sign_count = 0;
  80   for (int n = DC_MAX_SIGN_NUMBER; n--; )
  81     signs[n].active = false;
  82 }
  83
  84 void SignManager::createSign ( int x, int y, int type, int level )
  85 {
  86   if (sign_count == DC_MAX_SIGN_NUMBER) return;
  87
  88   int n;
  89   for (n = 0; signs[n].active; n++);
  90   Sign &sign = signs[n];
  91
  92   if (type == ST_MULTIPLIER) {
  93     sign.g_x = x + 1;
  94     sign.g_y = y - 1;
  95     if (!confirmSignLocation(signs[n]))
  96       if (sign.g_x > 1)
  97         sign.g_x--;
  98       else
  99         sign.g_y++;
 100
 101   } else {
 102     sign.g_x = x;
 103     sign.g_y = y;
 104     if (!confirmSignLocation(sign))
 105       if (sign.g_x < GC_PLAY_WIDTH - 1)
 106         sign.g_x++;
 107       else
 108         sign.g_y++;
 109   }
 110
 111   while (!confirmSignLocation(sign))
 112     sign.g_y++;
 113
 114   sign.x = sign.g_x * DC_GRID_ELEMENT_LENGTH
 115    + (DC_PLAY_OFFSET_X + DC_SIGN_OFFSET_X - DC_SIGN_OFFSET_SPREAD)
 116    + (2 * DC_SIGN_OFFSET_SPREAD) * Random::number();
 117   sign.y = sign.g_y * DC_GRID_ELEMENT_LENGTH
 118    + Displayer::play_offset_y + (DC_SIGN_OFFSET_Y - DC_SIGN_OFFSET_SPREAD)
 119    + (2 * DC_SIGN_OFFSET_SPREAD) * Random::number();
 120
 121   if (level > maximum_levels[type])
 122     level = maximum_levels[type];
 123
 124   sign.texture = texture_mapping[type][level];
 125   sign.subtexture_s = subtexture_s_mapping[type][level];
 126   sign.subtexture_t = subtexture_t_mapping[type][level];
 127
 128   if (type != ST_SPECIAL)
 129     sign.color = 0;
 130   else
 131     sign.color = level;
 132
 133   sign.life_time = 0;
 134
 135   sign_count++;
 136   sign.active = true;
 137 }
 138
 139 void SignManager::timeStep_inline_split_ (   )
 140 {
 141   int c = sign_count;
 142   for (int n = 0; c; n++)
 143     if (signs[n].active) {
 144       Sign &sign = signs[n];
 145       c--;
 146
 147       if (++sign.life_time == DC_SIGN_LIFE_TIME) {
 148         sign_count--;
 149         sign.active = false;
 150       }
 151
 152       if (sign.life_time < DC_SIGN_ACCELERATION_TIME)
 153         sign.y += DC_SIGN_ACCELERATION * sign.life_time;
 154
 155       else
 156         sign.y += DC_SIGN_TERMINAL_VELOCITY;
 157     }
 158 }
 159