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donkey.c
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donkey.c
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/*
Donkey Bolonkey
Copyright (C) 2001 David Capello
This file is released under the terms of the MIT license.
Read LICENSE.txt for more information.
*/
#include <allegro.h>
#include "dkbk.h"
#define get_block_flags2(x,y) get_block_flags(x/2, y/2)
#define get_block_donkey2(x,y) get_block_donkey(x/2, y/2)
#define set_block_donkey2(x,y,d) set_block_donkey(x/2, y/2, d)
#define get_level_home2(x, y) {get_level_home(x, y); *x*=2; *y*=2; }
static DONKEY *donkey_list;
static int move_freq; /* milliseconds */
static int move_time; /* 0 to move_freq */
static int add_freq; /* move times (2 blocks, 3 blocks...) */
static int add_time; /* 0 to add_freq */
static struct DEATH_DONKEY
{
int time;
int x, y;
int color;
int clockwise;
int flip;
} death_donkey[DONKEY_COLOR_MAX*2];
static int death_donkey_count;
void init_donkeys()
{
/* donkey list to NULL */
donkey_list = NULL;
/* for move donkeys */
move_freq = get_level()->donkey.move_freq_max;
move_time = move_freq;
/* for add donkeys */
add_freq = get_level()->donkey.add_freq;
add_time = add_freq;
death_donkey_count = 0;
}
void shutdown_donkeys()
{
DONKEY *pos, *next;
for (pos=donkey_list; pos; pos=next) {
next = pos->next;
free(pos);
}
donkey_list = NULL;
}
static void move_donkey_position(DONKEY *donkey, int flags)
{
if (flags & BLOCK_FLAG_LEFT)
donkey->x-=2;
if (flags & BLOCK_FLAG_UP)
donkey->y-=2;
if (flags & BLOCK_FLAG_RIGHT)
donkey->x+=2;
if (flags & BLOCK_FLAG_DOWN)
donkey->y+=2;
}
static void move_donkeys()
{
DONKEY *donkey;
int new_flags;
int flags;
int x, y;
/* see the `hand' */
get_hand();
if (hand_state() == HAND_FULL) {
kill_hand();
get_hand();
/* speed up */
move_freq -= get_level()->donkey.move_freq_countdown;
if (move_freq < get_level()->donkey.move_freq_min)
move_freq = get_level()->donkey.move_freq_min;
}
/* move the donkeys... */
/* EXIT */
/* go to first `exit' */
if (!get_first_hand_pos(&x, &y)) {
for(ever) {
/* get the donkey in the block */
donkey = get_block_donkey(x, y);
/* ok? */
if (donkey) {
flags = get_block_flags2(donkey->x, donkey->y);
donkey->xold = donkey->x;
donkey->yold = donkey->y;
move_donkey_position(donkey, flags);
/* the flags of the block to come */
new_flags = get_block_flags2(donkey->x, donkey->y);
/* next position not is a `exit' block */
if (!(new_flags & BLOCK_FLAG_EXIT)) {
if (hand_state() != HAND_BAD) {
/* return to old position */
donkey->x = donkey->xold;
donkey->y = donkey->yold;
}
}
else {
if ((get_block_donkey2(donkey->x, donkey->y)) &&
(get_block_donkey2(donkey->x, donkey->y) != donkey)) {
if (hand_state() != HAND_BAD) {
/* return to old position */
donkey->x = donkey->xold;
donkey->y = donkey->yold;
}
}
}
/* restore `donkey' pointers in the block */
if (get_block_donkey2(donkey->xold, donkey->yold) == donkey)
set_block_donkey2(donkey->xold, donkey->yold, NULL);
set_block_donkey2(donkey->x, donkey->y, donkey);
donkey->moved = TRUE;
donkey->flip = (donkey->xold == donkey->x)? donkey->flip:
(donkey->xold > donkey->x)? TRUE: FALSE;
}
/* go to next `exit' */
if (get_next_hand_pos(&x, &y))
break;
}
}
/* OTHERS */
for (donkey=donkey_list; donkey; donkey=donkey->next) {
if (donkey->moved)
continue;
flags = get_block_flags2(donkey->x, donkey->y);
if (flags & BLOCK_FLAG_STOP)
continue;
donkey->xold = donkey->x;
donkey->yold = donkey->y;
move_donkey_position(donkey, flags);
/* restore `donkey' pointers in the block */
if (get_block_donkey2(donkey->xold, donkey->yold) == donkey)
set_block_donkey2(donkey->xold, donkey->yold, NULL);
set_block_donkey2(donkey->x, donkey->y, donkey);
donkey->moved = TRUE;
donkey->flip = (donkey->xold == donkey->x)? donkey->flip:
(donkey->xold > donkey->x)? TRUE: FALSE;
}
/* STOP */
for (donkey=donkey_list; donkey; donkey=donkey->next) {
if (donkey->moved) {
donkey->moved = FALSE;
continue;
}
flags = get_block_flags2(donkey->x, donkey->y);
donkey->xold = donkey->x;
donkey->yold = donkey->y;
move_donkey_position(donkey, flags);
/* is new position occupied? */
if ((get_block_donkey2(donkey->x, donkey->y)) &&
(get_block_donkey2(donkey->x, donkey->y) != donkey)) {
/* if yes... return to old position */
donkey->x = donkey->xold;
donkey->y = donkey->yold;
active_red_alarm(100);
}
/* restore `donkey' pointers in the block */
if (get_block_donkey2(donkey->xold, donkey->yold) == donkey)
set_block_donkey2(donkey->xold, donkey->yold, NULL);
set_block_donkey2(donkey->x, donkey->y, donkey);
donkey->flip = (donkey->xold == donkey->x)? donkey->flip:
(donkey->xold > donkey->x)? TRUE: FALSE;
}
}
void update_donkeys()
{
int i, j, c;
move_time++;
if (move_time > FRAMES_PER_SECOND*move_freq/1000) {
move_time = 0;
move_donkeys();
add_time++;
}
if (add_time > add_freq) {
add_time = 0;
add_donkey();
}
/* move death donkeys */
c=0;
for (i=0; i<death_donkey_count; i++) {
death_donkey[i].time++;
if (death_donkey[i].time >= FRAMES_PER_SECOND) {
c++;
/* delete death donkey */
for (j=i; j<death_donkey_count; j++)
death_donkey[j] = death_donkey[j+1];
death_donkey_count--;
i--;
/* count down the donkeys counter */
countdown_counter_player();
active_blue_alarm(200);
}
}
if (c > 0) {
play_sample(datafile[SAMP_CRUSHER].dat, 255, 128, 1000, FALSE);
create_blood_particle_in_chain(
crusher.x+crusher.w/2, crusher.y+BLOCK_HEIGHT, c, c*32);
}
}
void draw_donkeys(BITMAP *bmp)
{
int x1, y1, x2, y2;
DONKEY *donkey;
int i, x, y;
/* draw normal donkeys */
for (donkey=donkey_list; donkey; donkey=donkey->next) {
draw_a_donkey(bmp,
(move_time) < ((FRAMES_PER_SECOND/2)*move_freq/1000)?
get_bitmap(BMP_DONKEY): get_bitmap(BMP_DONKEY_WALK),
donkey->x*BLOCK_WIDTH/2+BLOCK_WIDTH/2-get_bitmap(BMP_DONKEY)->w/2,
donkey->y*BLOCK_HEIGHT/2+BLOCK_HEIGHT/2-get_bitmap(BMP_DONKEY)->h/2-4,
donkey->color, donkey->flip, itofix(1), itofix(1));
}
/* draw the death donkeys */
for (i=0; i<death_donkey_count; i++) {
if (death_donkey[i].time < FRAMES_PER_SECOND/2) {
x1 = death_donkey[i].x;
y1 = death_donkey[i].y;
x2 = death_donkey[i].x;
y2 = death_donkey[i].y+BLOCK_HEIGHT;
x = x1 + (x2-x1) * (death_donkey[i].time) / (FRAMES_PER_SECOND/2);
y = y1 + (y2-y1) * (death_donkey[i].time) / (FRAMES_PER_SECOND/2);
}
else {
x1 = death_donkey[i].x;
y1 = death_donkey[i].y+BLOCK_HEIGHT;
x2 = crusher.x+crusher.w/2-get_bitmap(BMP_DONKEY_DEATH)->w/2;
y2 = crusher.y+crusher.h/2-get_bitmap(BMP_DONKEY_DEATH)->h/2;//+BLOCK_HEIGHT;
x = x1 + (x2-x1) * (death_donkey[i].time-(FRAMES_PER_SECOND/2)) / (FRAMES_PER_SECOND/2);
y = y1 + (y2-y1) * (death_donkey[i].time-(FRAMES_PER_SECOND/2)) / (FRAMES_PER_SECOND/2);
}
draw_a_donkey(bmp,
get_bitmap(BMP_DONKEY_DEATH),
x+rand()%3-1,
y+rand()%3-1,
death_donkey[i].color,
death_donkey[i].flip,
(death_donkey[i].time < FRAMES_PER_SECOND/2)?
0:
(itofix(256) * (death_donkey[i].time-(FRAMES_PER_SECOND/2)) / (FRAMES_PER_SECOND/2))
* ((death_donkey[i].clockwise)? 1: -1),
itofix(1));
}
}
void draw_a_donkey(BITMAP *bmp, BITMAP *sprite, int x, int y, int color, int flip, fixed angle, fixed scale)
{
BITMAP *temp = create_bitmap(sprite->w, sprite->h);
clear(temp);
((flip)? draw_sprite_h_flip: draw_sprite)(temp, sprite, 0, 0);
color_map = tint_map;
draw_lit_sprite(temp, temp, 0, 0, color);
color_map = NULL;
if ((angle == itofix(1)) && (scale == itofix(1)))
draw_sprite(bmp, temp, x, y);
else
rotate_scaled_sprite(bmp, temp, x, y, angle, scale);
destroy_bitmap(temp);
}
void add_donkey()
{
DONKEY *donkey;
/* create the new donkey */
donkey = malloc(sizeof(DONKEY));
/* default flip */
donkey->flip = FALSE;
/* take the first position */
get_level_home2(&donkey->x, &donkey->y);
donkey->xold = donkey->x;
donkey->yold = donkey->y;
/* get a color for the donkey */
donkey->color = get_level_random_color();
/* `moved' to FALSE */
donkey->moved = FALSE;
/* next donkey to NULL, because this is the last of the list */
donkey->next = NULL;
/* check the home */
if (get_block_donkey(donkey->x/2, donkey->y/2)) {
/* is full... */
/* destroy the new donkey */
free(donkey);
/* kill the player */
kill_player();
}
else {
/* is empty... */
/* to occupy the position in the level */
set_block_donkey(donkey->x/2, donkey->y/2, donkey);
/* add donkey to list */
add_donkey_to_list(donkey);
}
}
void kill_donkey(DONKEY *donkey)
{
remove_donkey_from_list(donkey);
free(donkey);
}
void add_death_donkey(DONKEY *donkey, int clockwise)
{
death_donkey[death_donkey_count].time = 0;
death_donkey[death_donkey_count].x = donkey->x*BLOCK_WIDTH/2+BLOCK_WIDTH/2-get_bitmap(BMP_DONKEY)->w/2;
death_donkey[death_donkey_count].y = donkey->y*BLOCK_HEIGHT/2+BLOCK_HEIGHT/2-get_bitmap(BMP_DONKEY)->h/2-4;
death_donkey[death_donkey_count].color = donkey->color;
death_donkey[death_donkey_count].clockwise = clockwise;
death_donkey[death_donkey_count].flip = donkey->flip;
death_donkey_count++;
}
/* adds a new donkey to the list */
void add_donkey_to_list(DONKEY *donkey)
{
donkey->next = donkey_list;
donkey_list = donkey;
}
/* removes the donkey to the list and level */
void remove_donkey_from_list(DONKEY *donkey)
{
DONKEY *pos, *prev;
prev = NULL;
for (pos=donkey_list; pos; pos=pos->next) {
if (pos == donkey) {
if (!prev)
donkey_list = donkey->next;
else
prev->next = donkey->next;
/* remove the donkey from level */
set_block_donkey(donkey->x/2, donkey->y/2, NULL);
break;
}
prev = pos;
}
}