rockbox/apps/plugins/rockblox.c
Linus Nielsen Feltzing f5491a519d Tetris is now Rockblox, to avoid trademark problems
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4742 a1c6a512-1295-4272-9138-f99709370657
2004-06-14 12:50:05 +00:00

418 lines
11 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 1999 Mattis Wadman (nappe@sudac.org)
*
* Heavily modified for embedded use by Björn Stenberg (bjorn@haxx.se)
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "plugin.h"
#ifdef HAVE_LCD_BITMAP
static const int start_x = 5;
static const int start_y = 5;
static const int max_x = 4 * 17;
static const int max_y = 3 * 10;
static const short level_speeds[10] = {
1000, 900, 800, 700, 600, 500, 400, 300, 250, 200
};
static const int blocks = 7;
static const int block_frames[7] = {1,2,2,2,4,4,4};
static int current_x, current_y, current_f, current_b;
static int level, score;
static int next_b, next_f;
static short lines;
static char virtual[LCD_WIDTH * LCD_HEIGHT];
static struct plugin_api* rb;
/*
block_data is built up the following way
first array index specifies the block number
second array index specifies the rotation of the block
third array index specifies:
0: x-coordinates of pixels
1: y-coordinates of pixels
fourth array index specifies the coordinate of a pixel
each block consists of four pixels whose relative coordinates are given
with block_data
*/
static const char block_data[7][4][2][4] =
{
{
{{0,1,0,1},{0,0,1,1}}
},
{
{{0,1,1,2},{1,1,0,0}},
{{0,0,1,1},{0,1,1,2}}
},
{
{{0,1,1,2},{0,0,1,1}},
{{1,1,0,0},{0,1,1,2}}
},
{
{{1,1,1,1},{0,1,2,3}},
{{0,1,2,3},{2,2,2,2}}
},
{
{{1,1,1,2},{2,1,0,0}},
{{0,1,2,2},{1,1,1,2}},
{{0,1,1,1},{2,2,1,0}},
{{0,0,1,2},{0,1,1,1}}
},
{
{{0,1,1,1},{0,0,1,2}},
{{0,1,2,2},{1,1,1,0}},
{{1,1,1,2},{0,1,2,2}},
{{0,0,1,2},{2,1,1,1}}
},
{
{{1,0,1,2},{0,1,1,1}},
{{2,1,1,1},{1,0,1,2}},
{{1,0,1,2},{2,1,1,1}},
{{0,1,1,1},{1,0,1,2}}
}
};
static int t_rand(int range)
{
return *rb->current_tick % range;
}
static void draw_frame(int fstart_x,int fstop_x,int fstart_y,int fstop_y)
{
rb->lcd_drawline(fstart_x, fstart_y, fstop_x, fstart_y);
rb->lcd_drawline(fstart_x, fstop_y, fstop_x, fstop_y);
rb->lcd_drawline(fstart_x, fstart_y, fstart_x, fstop_y);
rb->lcd_drawline(fstop_x, fstart_y, fstop_x, fstop_y);
rb->lcd_drawline(fstart_x - 1, fstart_y + 1, fstart_x - 1, fstop_y + 1);
rb->lcd_drawline(fstart_x - 1, fstop_y + 1, fstop_x - 1, fstop_y + 1);
}
static void draw_block(int x, int y, int block, int frame, bool clear)
{
int i, a, b;
for(i=0;i < 4;i++) {
if (clear)
{
for (a = 0; a < 3; a++)
for (b = 0; b < 4; b++)
rb->lcd_clearpixel(start_x + x + block_data[block][frame][1][i] * 4 - b,
start_y + y + block_data[block][frame][0][i] * 3 + a);
}
else
{
for (a = 0; a < 3; a++)
for (b = 0; b < 4; b++)
rb->lcd_drawpixel(start_x+x+block_data[block][frame][1][i] * 4 - b,
start_y+y+block_data[block][frame][0][i] * 3 + a);
}
}
}
static void to_virtual(void)
{
int i, a, b;
for(i = 0; i < 4; i++)
for (a = 0; a < 3; a++)
for (b = 0; b < 4; b++)
*(virtual +
(current_y + block_data[current_b][current_f][0][i] * 3 + a) *
max_x + current_x + block_data[current_b][current_f][1][i] *
4 - b) = current_b + 1;
}
static bool block_touch (int x, int y)
{
int a,b;
for (a = 0; a < 4; a++)
for (b = 0; b < 3; b++)
if (*(virtual + (y + b) * max_x + (x - a)) != 0)
return true;
return false;
}
static bool gameover(void)
{
int i;
int frame, block, y, x;
x = current_x;
y = current_y;
block = current_b;
frame = current_f;
for(i = 0; i < 4; i++){
/* Do we have blocks touching? */
if(block_touch(x + block_data[block][frame][1][i] * 4,
y + block_data[block][frame][0][i] * 3))
{
/* Are we at the top of the frame? */
if(x + block_data[block][frame][1][i] * 4 >= max_x - 16)
{
/* Game over ;) */
return true;
}
}
}
return false;
}
static bool valid_position(int x, int y, int block, int frame)
{
int i;
for(i=0;i < 4;i++)
if ((y + block_data[block][frame][0][i] * 3 > max_y - 3) ||
(x + block_data[block][frame][1][i] * 4 > max_x - 4) ||
(y + block_data[block][frame][0][i] * 3 < 0) ||
(x + block_data[block][frame][1][i] * 4 < 4) ||
block_touch (x + block_data[block][frame][1][i] * 4,
y + block_data[block][frame][0][i] * 3))
{
return false;
}
return true;
}
static void from_virtual(void)
{
int x,y;
for(y = 0; y < max_y; y++)
for(x = 1; x < max_x - 1; x++)
if(*(virtual + (y * max_x) + x) != 0)
rb->lcd_drawpixel(start_x + x, start_y + y);
else
rb->lcd_clearpixel(start_x + x, start_y + y);
}
static void move_block(int x,int y,int f)
{
int last_frame = current_f;
if(f != 0)
{
current_f += f;
if(current_f > block_frames[current_b]-1)
current_f = 0;
if(current_f < 0)
current_f = block_frames[current_b]-1;
}
if(valid_position(current_x + x, current_y + y, current_b, current_f))
{
draw_block(current_x,current_y,current_b,last_frame,true);
current_x += x;
current_y += y;
draw_block(current_x,current_y,current_b,current_f,false);
rb->lcd_update();
}
else
current_f = last_frame;
}
static void new_block(void)
{
current_b = next_b;
current_f = next_f;
current_x = max_x - 16;
current_y = (int)12;
next_b = t_rand(blocks);
next_f = t_rand(block_frames[next_b]);
rb->lcd_drawline (max_x + 7, start_y - 1, max_x + 29, start_y - 1);
rb->lcd_drawline (max_x + 29, start_y, max_x + 29, start_y + 14);
rb->lcd_drawline (max_x + 29, start_y + 14, max_x + 7, start_y + 14);
rb->lcd_drawline (max_x + 7, start_y + 14, max_x + 7, start_y - 1);
rb->lcd_drawline (max_x + 6, start_y + 15, max_x + 6, start_y);
rb->lcd_drawline (max_x + 6, start_y + 15, max_x + 28, start_y + 15);
draw_block(max_x + 9, start_y - 4, current_b, current_f, true);
draw_block(max_x + 9, start_y - 4, next_b, next_f, false);
if(!valid_position(current_x, current_y, current_b, current_f))
{
draw_block(current_x, current_y, current_b, current_f, false);
rb->lcd_update();
}
else
draw_block(current_x, current_y, current_b, current_f, false);
}
static int check_lines(void)
{
int x,y,i,j;
bool line;
int lines = 0;
for(x = 0; x < max_x; x++)
{
line = true;
for(y = 0; y < max_y; y++)
{
if(*(virtual + y * max_x + x) == 0)
{
line = false;
break;
}
}
if(line)
{
lines++;
/* move rows down */
for(i = x; i < max_x - 1; i++)
for (j = 0; j < max_y; j++)
*(virtual + j * max_x + i)=*(virtual + j * max_x + (i + 1));
x--; /* re-check this line */
}
}
return lines / 4;
}
static void move_down(void)
{
int l;
char s[25];
if(!valid_position(current_x - 4, current_y, current_b, current_f))
{
to_virtual();
l = check_lines();
if(l)
{
lines += l;
level = (int)lines/10;
if(level > 9)
level = 9;
from_virtual();
score += l*l;
}
rb->snprintf(s, sizeof(s), "%d Rows - Level %d", lines, level);
rb->lcd_putsxy(2, 42, s);
new_block();
move_block(0,0,0);
}
else
move_block(-4,0,0);
}
static int game_loop(void)
{
while(1)
{
int count = 0;
while(count * 300 < level_speeds[level])
{
switch(rb->button_get_w_tmo(HZ/10))
{
case BUTTON_OFF:
return PLUGIN_OK;
case BUTTON_UP:
case BUTTON_UP | BUTTON_REPEAT:
move_block(0,-3,0);
break;
case BUTTON_DOWN:
case BUTTON_DOWN | BUTTON_REPEAT:
move_block(0,3,0);
break;
case BUTTON_RIGHT:
case BUTTON_RIGHT | BUTTON_REPEAT:
move_block(0,0,1);
break;
case BUTTON_LEFT:
case BUTTON_LEFT | BUTTON_REPEAT:
move_down();
break;
case SYS_USB_CONNECTED:
rb->usb_screen();
return PLUGIN_USB_CONNECTED;
}
count++;
}
if(gameover())
{
rb->lcd_clearrect(0, 52, LCD_WIDTH, LCD_HEIGHT - 52);
rb->lcd_putsxy(2, 52, "You lose!");
rb->lcd_update();
rb->sleep(HZ * 3);
return false;
}
move_down();
}
return false;
}
static void init_rockblox(void)
{
rb->memset(&virtual, 0, sizeof(virtual));
current_x = 0;
current_y = 0;
current_f = 0;
current_b = 0;
level = 0;
lines = 0;
score = 0;
next_b = 0;
next_f = 0;
}
enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
{
int ret;
TEST_PLUGIN_API(api);
(void)parameter;
rb = api;
/* Lets use the default font */
rb->lcd_setfont(FONT_SYSFIXED);
init_rockblox();
draw_frame(start_x, start_x + max_x - 1, start_y - 1, start_y + max_y);
rb->lcd_putsxy(2, 42, "0 Rows - Level 0");
rb->lcd_update();
next_b = t_rand(blocks);
next_f = t_rand(block_frames[next_b]);
new_block();
ret = game_loop();
rb->lcd_setfont(FONT_UI);
return ret;
}
#endif