2015-10-26 18:27:43 +01:00
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/*
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Copyright (C) 2015 Parallel Realities
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "entities.h"
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2015-10-26 20:16:12 +01:00
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static void drawEntity(Entity *e);
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2015-10-29 11:14:21 +01:00
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static void doEntity(void);
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2015-11-01 10:25:10 +01:00
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static void activateEpicFighters(int n, int side);
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2015-11-02 19:07:26 +01:00
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static void restrictToGrid(Entity *e);
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2015-10-27 08:24:17 +01:00
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Entity *spawnEntity(void)
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{
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Entity *e = malloc(sizeof(Entity));
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memset(e, 0, sizeof(Entity));
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e->id = battle.entId++;
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2015-10-28 20:12:58 +01:00
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e->active = 1;
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2015-10-27 08:24:17 +01:00
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battle.entityTail->next = e;
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battle.entityTail = e;
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return e;
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}
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2015-10-26 20:16:12 +01:00
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2015-10-26 18:27:43 +01:00
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void doEntities(void)
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{
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2015-10-29 17:18:41 +01:00
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int numAllies, numEnemies;
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2015-11-01 10:25:10 +01:00
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int numActiveAllies, numActiveEnemies;
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2015-10-26 18:27:43 +01:00
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Entity *e, *prev;
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prev = &battle.entityHead;
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2015-11-01 10:25:10 +01:00
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numAllies = numEnemies = numActiveAllies = numActiveEnemies = 0;
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2015-10-26 20:16:12 +01:00
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2015-10-26 18:27:43 +01:00
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for (e = battle.entityHead.next ; e != NULL ; e = e->next)
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{
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2015-10-29 12:08:47 +01:00
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if (e->active)
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2015-10-27 08:24:17 +01:00
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{
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2015-10-29 12:08:47 +01:00
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self = e;
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2015-10-29 17:18:41 +01:00
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2015-11-02 08:57:56 +01:00
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removeFromGrid(e);
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2015-10-29 12:08:47 +01:00
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if (e->action != NULL)
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2015-10-29 11:14:21 +01:00
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{
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2015-10-29 12:08:47 +01:00
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if (--e->thinkTime <= 0)
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{
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e->thinkTime = 0;
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e->action();
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}
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2015-10-29 11:14:21 +01:00
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}
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2015-10-29 12:08:47 +01:00
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switch (e->type)
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2015-10-29 11:14:21 +01:00
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{
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2015-10-29 12:08:47 +01:00
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case ET_FIGHTER:
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doFighter();
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2015-10-29 17:18:41 +01:00
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2015-11-01 14:35:35 +01:00
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if (e->health > 0)
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2015-10-29 17:18:41 +01:00
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{
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2015-11-01 14:35:35 +01:00
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if (e->side == SIDE_ALLIES)
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{
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numActiveAllies++;
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}
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else
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{
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numActiveEnemies++;
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}
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2015-10-29 17:18:41 +01:00
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}
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2015-10-29 12:08:47 +01:00
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break;
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default:
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doEntity();
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break;
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2015-10-29 11:14:21 +01:00
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}
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2015-11-02 19:07:26 +01:00
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restrictToGrid(e);
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2015-11-02 08:57:56 +01:00
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e->x += e->dx;
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e->y += e->dy;
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addToGrid(e);
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2015-10-29 12:08:47 +01:00
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if (e->alive == ALIVE_DEAD)
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{
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if (e == battle.entityTail)
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{
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battle.entityTail = prev;
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}
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if (e == battle.missionTarget)
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{
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battle.missionTarget = NULL;
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}
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if (e == player)
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{
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player = NULL;
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2015-11-01 00:09:43 +01:00
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battle.playerSelect = battle.epic;
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2015-10-29 12:08:47 +01:00
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}
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prev->next = e->next;
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free(e);
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e = prev;
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}
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2015-10-29 11:14:21 +01:00
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}
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2015-11-01 10:25:10 +01:00
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if (e->type == ET_FIGHTER && (battle.epic || e->active))
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{
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if (self->side == SIDE_ALLIES)
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{
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numAllies++;
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}
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else
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{
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numEnemies++;
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}
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}
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2015-10-29 11:14:21 +01:00
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prev = e;
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2015-10-26 20:16:12 +01:00
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}
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2015-10-29 17:18:41 +01:00
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battle.numAllies = numAllies;
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battle.numEnemies = numEnemies;
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2015-11-01 10:25:10 +01:00
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if (battle.epic && battle.stats[STAT_TIME] % FPS == 0)
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{
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if (numAllies > battle.epicFighterLimit)
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{
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activateEpicFighters(battle.epicFighterLimit - numActiveAllies, SIDE_ALLIES);
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}
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if (numEnemies > battle.epicFighterLimit)
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{
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activateEpicFighters(battle.epicFighterLimit - numActiveEnemies, SIDE_NONE);
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}
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}
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2015-10-26 20:16:12 +01:00
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}
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2015-11-02 19:07:26 +01:00
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static void restrictToGrid(Entity *e)
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{
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float force;
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if (e->x <= GRID_RESTRICTION_SIZE)
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{
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force = GRID_RESTRICTION_SIZE - e->x;
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e->dx += force * 0.001;
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e->dx *= 0.95;
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}
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if (e->y <= GRID_RESTRICTION_SIZE)
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{
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force = GRID_RESTRICTION_SIZE - e->y;
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e->dy += force * 0.001;
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e->dy *= 0.95;
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}
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if (e->x >= (GRID_SIZE * GRID_CELL_WIDTH) - GRID_RESTRICTION_SIZE)
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{
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force = e->x - ((GRID_SIZE * GRID_CELL_WIDTH) - GRID_RESTRICTION_SIZE);
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e->dx -= force * 0.001;
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e->dx *= 0.95;
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}
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if (e->y >= (GRID_SIZE * GRID_CELL_HEIGHT) - GRID_RESTRICTION_SIZE)
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{
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force = e->y - ((GRID_SIZE * GRID_CELL_HEIGHT) - GRID_RESTRICTION_SIZE);
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e->dy -= force * 0.001;
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e->dy *= 0.95;
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}
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}
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2015-10-29 11:14:21 +01:00
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static void doEntity(void)
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2015-10-26 20:16:12 +01:00
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{
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2015-10-27 08:24:17 +01:00
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if (self->health <= 0)
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2015-10-26 20:16:12 +01:00
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{
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2015-10-29 11:14:21 +01:00
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self->alive = ALIVE_DEAD;
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2015-10-26 18:27:43 +01:00
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}
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}
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void drawEntities(void)
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{
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2015-11-02 14:19:31 +01:00
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Entity *e, **candidates;
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int i;
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2015-10-26 18:27:43 +01:00
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2015-11-02 14:19:31 +01:00
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candidates = getAllEntsWithin(battle.camera.x, battle.camera.y, SCREEN_WIDTH, SCREEN_HEIGHT, NULL);
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i = 0;
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e = candidates[i];
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while (e)
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2015-10-26 18:27:43 +01:00
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{
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2015-10-31 09:03:11 +01:00
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if (e->active)
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2015-10-26 20:16:12 +01:00
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{
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2015-10-31 09:03:11 +01:00
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switch (e->type)
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{
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case ET_FIGHTER:
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drawFighter(e);
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break;
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default:
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drawEntity(e);
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break;
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}
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2015-10-26 20:16:12 +01:00
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}
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2015-11-02 14:19:31 +01:00
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i++;
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e = (i < MAX_GRID_CANDIDATES) ? candidates[i] : NULL;
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2015-10-26 18:27:43 +01:00
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}
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}
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2015-10-26 20:16:12 +01:00
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static void drawEntity(Entity *e)
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{
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2015-11-01 00:09:43 +01:00
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blitRotated(e->texture, e->x - battle.camera.x, e->y - battle.camera.y, e->angle);
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2015-10-26 20:16:12 +01:00
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}
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2015-10-29 12:08:47 +01:00
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void activateEntities(char *name)
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{
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Entity *e;
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for (e = battle.entityHead.next ; e != NULL ; e = e->next)
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{
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if (strcmp(e->name, name) == 0)
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{
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e->active = 1;
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}
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}
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}
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2015-11-01 10:25:10 +01:00
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static void activateEpicFighters(int n, int side)
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{
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Entity *e;
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if (n > 0)
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{
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for (e = battle.entityHead.next ; e != NULL ; e = e->next)
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{
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if (!e->active && e->type == ET_FIGHTER && ((side == SIDE_ALLIES && e->side == SIDE_ALLIES) || (side != SIDE_ALLIES && e->side != SIDE_ALLIES)))
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{
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e->active = 1;
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if (--n <= 0)
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{
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return;
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}
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}
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}
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}
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}
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