blobwarsAttrition/src/world/items.c

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/*
Copyright (C) 2018 Parallel Realities
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 2
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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "items.h"
static void throwItem(Item *i);
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static int getRandomPlayerWeaponAt(int x, int y);
static int wpnIconSprite;
static int cherrySprite[3];
static int batterySprite;
void initItems(void)
{
wpnIconSprite = getSpriteIndex("Weapon");
batterySprite = getSpriteIndex("Battery");
cherrySprite[0] = getSpriteIndex("Cherry");
cherrySprite[1] = getSpriteIndex("DualCherry");
cherrySprite[2] = getSpriteIndex("CherryBunch");
}
void addRandomWeapon(double x, double y)
{
Item *wpn;
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int type;
wpn = malloc(sizeof(Item));
memset(wpn, 0, sizeof(Item));
world.entityTail->next = (Entity*)wpn;
world.entityTail = (Entity*)wpn;
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wpn->x = x;
wpn->y = y;
type = getRandomPlayerWeaponAt(wpn->x, wpn->y);
switch (type)
{
case 0:
wpn->touch = NULL;
break;
default:
break;
}
wpn->sprite[0] = wpn->sprite[1] = wpn->sprite[2] = wpnIconSprite;
wpn->spriteFrame = type;
wpn->spriteTime = -1;
throwItem(wpn);
}
static int getRandomPlayerWeaponAt(int x, int y)
{
int type;
type = getRandomPlayerWeapon(world.isBossMission);
if (world.map.data[(x / MAP_TILE_SIZE)][(y / MAP_TILE_SIZE)] == MAP_TILE_WATER)
{
type = WPN_PISTOL;
}
else if (type == WPN_PISTOL && rand() < 0.25)
{
type = getRandomPlayerWeapon(world.isBossMission);
}
return type;
}
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void dropRandomCherry(double x, double y)
{
Item *i;
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double r;
i = malloc(sizeof(Item));
memset(i, 0, sizeof(Item));
world.entityTail->next = (Entity*)i;
world.entityTail = (Entity*)i;
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r = rand() % 100;
if (r < 1)
{
STRNCPY(i->name, "bunch of cherries", MAX_NAME_LENGTH);
i->value = 10;
i->sprite[0] = i->sprite[1] = i->sprite[2] = cherrySprite[2];
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}
else if (r < 10)
{
STRNCPY(i->name, "pair of cherries", MAX_NAME_LENGTH);
i->value = 3;
i->sprite[0] = i->sprite[1] = i->sprite[2] = cherrySprite[1];
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}
else
{
STRNCPY(i->name, "small cherry", MAX_NAME_LENGTH);
i->value = 1;
i->sprite[0] = i->sprite[1] = i->sprite[2] = cherrySprite[0];
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}
i->x = x;
i->y = y;
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throwItem(i);
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}
void dropBattery(double x, double y)
{
Item *i;
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double r;
i = malloc(sizeof(Item));
memset(i, 0, sizeof(Item));
world.entityTail->next = (Entity*)i;
world.entityTail = (Entity*)i;
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r = rand() % 100;
if (r < 1)
{
STRNCPY(i->name, "full battery", MAX_NAME_LENGTH);
i->value = 4;
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}
else if (r < 10)
{
STRNCPY(i->name, "battery", MAX_NAME_LENGTH);
i->value = 3;
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}
else if (r < 25)
{
STRNCPY(i->name, "used battery", MAX_NAME_LENGTH);
i->value = 2;
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}
else
{
STRNCPY(i->name, "weak battery", MAX_NAME_LENGTH);
i->value = 1;
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}
i->sprite[0] = i->sprite[1] = i->sprite[2] = batterySprite;
i->spriteTime = -1;
i->spriteFrame = i->value;
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i->x = x;
i->y = y;
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throwItem(i);
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}
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void addRandomItems(float x, float y)
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{
if (rand() % 100 < 25)
{
dropRandomCherry(x, y);
}
if (rand() % 100 < 20)
{
dropBattery(x, y);
}
}
static void throwItem(Item *i)
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{
i->dx = rrnd(-3, 3);
i->dy = rrnd(-7, -5);
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}