enemymanager.cpp

   1 #include <algorithm>
   2
   3 #include "enemymanager.h"
   4 #include "enemy.h"
   5 #include "game.h"
   6
   7 static int regenemy (lua_State *L) {
   8         lua_settable(L, LUA_REGISTRYINDEX);
   9 }
  10
  11 EnemyManager::EnemyManager(Game* g) {
  12         game = g;
  13         lstate = NULL;
  14 }
  15
  16 void EnemyManager::loadEnemies() {
  17         std::set<Enemy*>::iterator it;
  18         for (it = enemies.begin();it != enemies.end(); it++) {
  19                 (*it)->die();
  20         }
  21         enemies.clear();
  22         if (lstate != NULL)
  23                 lua_close(lstate);
  24         lstate = newState();
  25         registerFunction(lstate,"regenemy",regenemy);
  26         doLuaFile(lstate,"enemymanager.lua");
  27         doLuaFile(lstate,"enemies.lua");
  28 }
  29
  30 void EnemyManager::desenha() {
  31         std::set<Enemy*>::iterator it;
  32         for (it = enemies.begin();it != enemies.end(); it++) {
  33                 (*it)->desenha();
  34         }
  35 }
  36
  37 void EnemyManager::move() {
  38         std::set<Enemy*>::iterator it;
  39         for (it = enemies.begin();it != enemies.end(); it++) {
  40                 (*it)->move();
  41         }
  42 }
  43
  44 void EnemyManager::animate() {
  45         std::set<Enemy*>::iterator it;
  46         for (it = enemies.begin();it != enemies.end(); it++) {
  47                 (*it)->animate();
  48         }
  49 }
  50
  51 void EnemyManager::think() {
  52         std::set<Enemy*>::iterator it;
  53         for (it = enemies.begin();it != enemies.end(); it++) {
  54                 (*it)->think();
  55         }
  56 }
  57
  58 void EnemyManager::remove(Enemy* enemy) {
  59         enemies.erase(enemies.find(enemy));
  60 }
  61
  62 Enemy* EnemyManager::createEnemy(std::string name) {
  63         lua_pushstring(lstate,name.c_str());
  64         lua_gettable(lstate, LUA_REGISTRYINDEX);
  65         if (lua_pcall(lstate,0,2,0) != 0)  /* do the call */
  66         printf("error: %s", lua_tostring(lstate, -1));
  67         std::string weaponname = lua_tostring(lstate, 1);
  68         lua_pop(lstate,2);
  69         Enemy* ret = new Enemy(game);
  70         enemies.insert(ret);
  71         game->gravityManager->subscribe(ret);
  72         game->collisionManager->subscribe(ret);
  73         ret->equip(game->weaponManager->getWeapon(weaponname));
  74         return ret;
  75 }
  76
  77 bool enemyAlive(Enemy* e) {
  78         return !e->dead;
  79 }
  80
  81 bool EnemyManager::hasEnemies() {
  82         if (enemies.empty())
  83                 return false;
  84         return count_if(enemies.begin(), enemies.end(), enemyAlive) > 0;
  85 }