135 lines
2.9 KiB
C
135 lines
2.9 KiB
C
/*
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Copyright (C) 2015-2016 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 "mine.h"
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static void think(void);
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static void die(void);
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static void lookForFighters(void);
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static void doSplashDamage(void);
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static SDL_Texture *mineWarning;
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static SDL_Texture *mineNormal;
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Entity *spawnMine(void)
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{
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Entity *mine = spawnEntity();
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mine->type = ET_MINE;
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mine->health = mine->maxHealth = 1;
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mine->systemPower = SYSTEM_POWER;
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mine->texture = getTexture("gfx/entities/mine.png");
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mine->action = think;
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mine->die = die;
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mine->flags = EF_TAKES_DAMAGE+EF_SHORT_RADAR_RANGE+EF_NO_TARGET;
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mineNormal = getTexture("gfx/entities/mine.png");
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mineWarning = getTexture("gfx/entities/mineWarning.png");
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return mine;
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}
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static void think(void)
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{
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self->texture = mineNormal;
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self->angle += 0.1;
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if (self->angle >= 360)
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{
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self->angle -= 360;
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}
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lookForFighters();
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if (self->systemPower < SYSTEM_POWER && SDL_GetTicks() % 150 < 75)
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{
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playBattleSound(SND_MINE_WARNING, self->x, self->y);
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self->texture = mineWarning;
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}
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}
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static void lookForFighters(void)
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{
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Entity *e, **candidates;
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int i;
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candidates = getAllEntsWithin(self->x - (self->w / 2) - DAMAGE_RANGE, self->y - (self->h / 2) - DAMAGE_RANGE, self->w + DAMAGE_RANGE, self->h + DAMAGE_RANGE, self);
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for (i = 0, e = candidates[i] ; e != NULL ; e = candidates[++i])
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{
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if (e->health > 0 && e->type == ET_FIGHTER && getDistance(self->x, self->y, e->x, e->y) <= TRIGGER_RANGE)
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{
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self->systemPower--;
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if (self->systemPower <= 0)
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{
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self->health = 0;
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}
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return;
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}
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}
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self->systemPower = SYSTEM_POWER;
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}
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static void die(void)
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{
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addMineExplosion();
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doSplashDamage();
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playBattleSound(SND_EXPLOSION_5, self->x, self->y);
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self->alive = ALIVE_DEAD;
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}
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static void doSplashDamage(void)
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{
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Entity *e, **candidates;
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int i, dist;
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float damage, percent;
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candidates = getAllEntsWithin(self->x - (self->w / 2), self->y - (self->h / 2), self->w, self->h, self);
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for (i = 0, e = candidates[i] ; e != NULL ; e = candidates[++i])
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{
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if (e->health > 0 && e->type == ET_FIGHTER)
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{
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dist = getDistance(self->x, self->y, e->x, e->y);
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if (dist <= DAMAGE_RANGE)
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{
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percent = dist;
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percent /= DAMAGE_RANGE;
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percent = 1 - percent;
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damage = 100;
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damage *= percent;
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damageFighter(e, damage, 0);
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}
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}
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}
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}
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