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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2015-12-07 20:19:41 +01:00
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static void alignComponents(void);
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2015-11-13 23:08:59 +01:00
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static void drawEntity(Entity *e);
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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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2015-11-13 23:08:59 +01:00
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static void drawTargetRects(Entity *e);
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2015-11-09 23:48:59 +01:00
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static int drawComparator(const void *a, const void *b);
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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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2015-12-07 20:19:41 +01:00
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e->reload = MAX(e->reload - 1, 0);
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e->shieldRecharge = MAX(e->shieldRecharge - 1, 0);
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e->armourHit = MAX(e->armourHit - 25, 0);
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e->shieldHit = MAX(e->shieldHit - 5, 0);
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e->systemHit = MAX(e->systemHit - 25, 0);
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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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2015-11-20 23:52:48 +01:00
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if (e->alive == ALIVE_ALIVE || e->alive == ALIVE_DYING)
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{
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if (e->action != NULL)
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{
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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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}
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doRope(e);
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restrictToGrid(e);
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2015-11-29 14:23:27 +01:00
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if (e->flags & EF_STATIC)
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{
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e->dx = e->dy = 0;
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}
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2015-11-20 23:52:48 +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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}
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else
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2015-10-29 12:08:47 +01:00
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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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2015-11-15 12:31:30 +01:00
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cutRope(e);
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2015-10-29 12:08:47 +01:00
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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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2015-11-20 23:52:48 +01:00
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if (e->type == ET_FIGHTER && (battle.epic || e->active) && !(e->flags & EF_NO_EPIC))
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2015-11-01 10:25:10 +01:00
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{
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2015-11-19 13:44:56 +01:00
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if (e->side == SIDE_ALLIES)
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2015-11-01 10:25:10 +01:00
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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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2015-11-22 14:06:19 +01:00
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if (!battle.numInitialEnemies)
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{
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battle.numInitialEnemies = battle.numEnemies;
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}
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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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2015-12-07 20:19:41 +01:00
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alignComponents();
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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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2015-12-07 20:19:41 +01:00
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if (self->die)
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2015-10-26 20:16:12 +01:00
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{
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2015-12-07 20:19:41 +01:00
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if (self->health <= 0 && self->die && self->alive == ALIVE_ALIVE)
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{
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self->health = 0;
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self->alive = ALIVE_DYING;
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self->die();
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if (self == battle.missionTarget)
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{
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battle.missionTarget = NULL;
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}
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}
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2015-10-26 18:27:43 +01:00
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}
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2015-12-07 20:19:41 +01:00
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else
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2015-11-18 12:28:19 +01:00
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{
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2015-12-07 20:19:41 +01:00
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if (self->alive == ALIVE_DYING)
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{
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self->alive = ALIVE_DEAD;
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}
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else if (self->health <= 0)
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{
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self->alive = ALIVE_DYING;
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}
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}
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}
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static void alignComponents(void)
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{
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Entity *e;
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float x, y;
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float c, s;
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for (e = battle.entityHead.next ; e != NULL ; e = e->next)
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{
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if (e->type == ET_CAPITAL_SHIP_COMPONENT || e->type == ET_CAPITAL_SHIP_GUN)
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{
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s = sin(TO_RAIDANS(e->owner->angle));
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c = cos(TO_RAIDANS(e->owner->angle));
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x = (e->offsetX * c) - (e->offsetY * s);
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y = (e->offsetX * s) + (e->offsetY * c);
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x += e->owner->x;
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y += e->owner->y;
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e->x = x;
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e->y = y;
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if (e->owner->alive == ALIVE_DYING)
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{
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e->alive = ALIVE_DEAD;
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}
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}
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2015-11-18 12:28:19 +01:00
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}
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2015-10-26 18:27:43 +01:00
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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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2015-11-09 23:48:59 +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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2015-11-09 23:48:59 +01:00
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2015-11-13 23:08:59 +01:00
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/* count number of candidates for use with qsort */
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2015-11-14 00:35:51 +01:00
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for (i = 0, e = candidates[i] ; e != NULL ; e = candidates[++i]) {}
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2015-11-09 23:48:59 +01:00
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qsort(candidates, i, sizeof(Entity*), drawComparator);
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2015-11-14 00:35:51 +01:00
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for (i = 0, e = candidates[i] ; e != NULL ; e = candidates[++i])
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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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2015-12-07 20:19:41 +01:00
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drawEntity(e);
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2015-10-26 20:16:12 +01:00
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}
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2015-11-13 23:08:59 +01:00
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drawTargetRects(e);
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2015-11-15 00:19:17 +01:00
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drawRope(e);
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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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2015-12-07 20:19:41 +01:00
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SDL_SetTextureColorMod(e->texture, 255, 255, 255);
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if (e->armourHit > 0)
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{
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SDL_SetTextureColorMod(e->texture, 255, 255 - e->armourHit, 255 - e->armourHit);
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}
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if (e->systemHit > 0)
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{
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SDL_SetTextureColorMod(e->texture, 255 - e->systemHit, 255, 255);
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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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2015-12-07 20:19:41 +01:00
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if (e->shieldHit > 0)
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{
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drawShieldHitEffect(e);
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}
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SDL_SetTextureColorMod(e->texture, 255, 255, 255);
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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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2015-11-13 23:08:59 +01:00
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static void drawTargetRects(Entity *e)
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{
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SDL_Rect r;
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2015-11-16 15:39:20 +01:00
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int size = MAX(e->w, e->h) + 16;
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2015-11-14 00:35:51 +01:00
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if (player != NULL && e == player->target)
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2015-11-13 23:08:59 +01:00
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{
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2015-11-16 15:39:20 +01:00
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r.x = e->x - (size / 2) - battle.camera.x;
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r.y = e->y - (size / 2) - battle.camera.y;
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r.w = size;
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r.h = size;
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2015-11-13 23:08:59 +01:00
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|
|
|
|
SDL_SetRenderDrawColor(app.renderer, 255, 0, 0, 255);
|
|
|
|
SDL_RenderDrawRect(app.renderer, &r);
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((e == battle.missionTarget || e->flags & EF_MISSION_TARGET) && (e->flags & EF_NO_MT_BOX) == 0)
|
|
|
|
{
|
2015-11-22 18:49:38 +01:00
|
|
|
r.x = e->x - (size / 2) - battle.camera.x - 4;
|
|
|
|
r.y = e->y - (size / 2) - battle.camera.y - 4;
|
|
|
|
r.w = size + 8;
|
|
|
|
r.h = size + 8;
|
2015-11-13 23:08:59 +01:00
|
|
|
|
|
|
|
SDL_SetRenderDrawColor(app.renderer, 0, 255, 0, 255);
|
|
|
|
SDL_RenderDrawRect(app.renderer, &r);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-11-29 14:23:27 +01:00
|
|
|
void activateEntities(char *names)
|
2015-10-29 12:08:47 +01:00
|
|
|
{
|
|
|
|
Entity *e;
|
2015-11-29 14:23:27 +01:00
|
|
|
char *name;
|
2015-10-29 12:08:47 +01:00
|
|
|
|
2015-11-29 14:23:27 +01:00
|
|
|
name = strtok(names, ";");
|
|
|
|
|
|
|
|
while (name)
|
2015-10-29 12:08:47 +01:00
|
|
|
{
|
2015-11-29 14:23:27 +01:00
|
|
|
for (e = battle.entityHead.next ; e != NULL ; e = e->next)
|
2015-10-29 12:08:47 +01:00
|
|
|
{
|
2015-11-29 14:23:27 +01:00
|
|
|
if (strcmp(e->name, name) == 0)
|
|
|
|
{
|
|
|
|
e->active = 1;
|
|
|
|
}
|
2015-10-29 12:08:47 +01:00
|
|
|
}
|
2015-11-29 14:23:27 +01:00
|
|
|
|
|
|
|
name = strtok(NULL, ";");
|
2015-10-29 12:08:47 +01:00
|
|
|
}
|
|
|
|
}
|
2015-11-01 10:25:10 +01:00
|
|
|
|
2015-11-29 13:55:15 +01:00
|
|
|
void activateEntityGroups(char *groupNames)
|
2015-11-14 09:41:07 +01:00
|
|
|
{
|
|
|
|
Entity *e;
|
2015-11-29 13:55:15 +01:00
|
|
|
char *groupName;
|
2015-11-14 09:41:07 +01:00
|
|
|
|
2015-11-29 13:55:15 +01:00
|
|
|
groupName = strtok(groupNames, ";");
|
|
|
|
|
|
|
|
while (groupName)
|
2015-11-14 09:41:07 +01:00
|
|
|
{
|
2015-11-29 13:55:15 +01:00
|
|
|
for (e = battle.entityHead.next ; e != NULL ; e = e->next)
|
2015-11-14 09:41:07 +01:00
|
|
|
{
|
2015-11-29 13:55:15 +01:00
|
|
|
if (strcmp(e->groupName, groupName) == 0)
|
|
|
|
{
|
|
|
|
e->active = 1;
|
|
|
|
}
|
2015-11-14 09:41:07 +01:00
|
|
|
}
|
2015-11-29 13:55:15 +01:00
|
|
|
|
|
|
|
groupName = strtok(NULL, ";");
|
2015-11-14 09:41:07 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-11-01 10:25:10 +01:00
|
|
|
static void activateEpicFighters(int n, int side)
|
|
|
|
{
|
|
|
|
Entity *e;
|
|
|
|
|
|
|
|
if (n > 0)
|
|
|
|
{
|
|
|
|
for (e = battle.entityHead.next ; e != NULL ; e = e->next)
|
|
|
|
{
|
2015-11-20 23:52:48 +01:00
|
|
|
if (!e->active && e->type == ET_FIGHTER && !(e->flags & EF_NO_EPIC) && ((side == SIDE_ALLIES && e->side == SIDE_ALLIES) || (side != SIDE_ALLIES && e->side != SIDE_ALLIES)))
|
2015-11-01 10:25:10 +01:00
|
|
|
{
|
|
|
|
e->active = 1;
|
|
|
|
|
|
|
|
if (--n <= 0)
|
|
|
|
{
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2015-11-09 23:48:59 +01:00
|
|
|
|
|
|
|
static int drawComparator(const void *a, const void *b)
|
|
|
|
{
|
|
|
|
Entity *e1 = *((Entity**)a);
|
|
|
|
Entity *e2 = *((Entity**)b);
|
|
|
|
|
|
|
|
return e2->type - e1->type;
|
|
|
|
}
|