breakhack/src/stats.c

92 lines
2.1 KiB
C

/*
* BreakHack - A dungeone crawler RPG
* Copyright (C) 2018 Linus Probert <linus.probert@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <SDL_ttf.h>
#include "gui.h"
#include "stats.h"
#include "random.h"
#include "util.h"
#include "defines.h"
static int
get_attack_roll(Stats *attacker)
{
int roll;
int firstRoll = get_random(19) + 1;
int secondRoll = get_random(19) + 1;
if (attacker->advantage)
roll = max(firstRoll, secondRoll);
else if (attacker->disadvantage)
roll = min(firstRoll, secondRoll);
else
roll = firstRoll;
return roll + attacker->atk;
}
static int
get_defence_roll(Stats *defender)
{
int roll;
int firstRoll = get_random(19) + 1;
int secondRoll = get_random(19) + 1;
if (defender->advantage)
roll = max(firstRoll, secondRoll);
else if (defender->disadvantage)
roll = min(firstRoll, secondRoll);
else
roll = firstRoll;
return roll + defender->def;
}
unsigned int
stats_fight(Stats *attacker, Stats *defender)
{
bool critical = false;
int atkRoll = get_attack_roll(attacker);
int defRoll = get_defence_roll(defender);
if (atkRoll - attacker->atk == 20)
critical = get_attack_roll(attacker) > defRoll;
int dmgRoll = 0;
if (atkRoll >= defRoll) {
if (attacker->dmg > 0)
dmgRoll = get_random(attacker->dmg - 1) + 1;
else
dmgRoll = 1;
if (critical) {
dmgRoll = dmgRoll * 2;
gui_log("CRITICAL HIT!");
}
defender->hp -= dmgRoll;
}
return dmgRoll;
}