void init(void)
{
/* Disable the watchdog timer */
WDTCTL = WDTHOLD | WDTPW;
/* GPIO: All inputs */
P1DIR = P2DIR = P3DIR = P4DIR = 0;
/* Use a 16 MHz clock (DCO) */
DCOCTL = CALDCO_16MHZ;
BCSCTL1 &= ~0x0f;
BCSCTL1 |=
/*XT2O=0: XT2 is on*/
/*XTS=0: LFXT1 mode select. 0 -Low frequency mode*/
DIVA_0 /* ACLK Divider 0: /1 */
|CALBC1_16MHZ; /* BCSCTL1 Calibration Data for 16MHz */
BCSCTL2 = SELM_DCOCLK /* MCLK from DCO */
/* DIVMx = 0 : No MCLK divider */
/* SELS = 0: SMCLK from DCO */
/* DIVSx = 0 : No SMCLK divider */
/* DCOR = 0 : DCO internal resistor */;
BCSCTL3 = LFXT1S1; /*VLOCLK */
flash_init();
opamp1_init();
bias_init();
adc10_init(); /* The order here matters. This configures the ADC */
random_init(); /* Grab some random data */
net_rx_init();
net_tx_init();
ir_receive_init();
ir_transmit_init();
motor_init();
leds_init();
battery_init();
food_init();
eint();
/* virus_init(); */
}
static void timeout(struct rtgui_timer *timer, void *parameter)
{
struct rtgui_widget *widget;
SYS_STE ret;
if (!map)
return;
ret = snake_step(run_state, map);
if (OVER == ret)
return;
if (FOOD == ret)
{
snake_len++;
if (snake_len >= (map->width * map->height) / 3)
{
point_t start;
start.x = snake_init_pointx;
start.y = snake_init_pointy;
run_state = SNAKE_DIR_DOWN;
snake_len = snake_length_init;
if (!snake_restart(&start, snake_len, run_state, map))
{
map_deinit(map);
snake_deinit();
map = RT_NULL;
}
}
food_init(map, 1);
}
widget = RTGUI_WIDGET(parameter);
snake_update(widget);
}
static void snake_draw(struct rtgui_widget *widget)
{
struct rtgui_dc *dc;
struct rtgui_rect rect;
rt_uint32_t i;
dc = rtgui_dc_begin_drawing(widget);
if (dc == RT_NULL)
{
rt_kprintf("dc == RT_NULL\r\n");
return;
}
/* get room size, run once frist. */
if ((room_size_x == 0) || (room_size_y == 0))
{
rt_size_t tmp;
rtgui_widget_get_rect(widget, &rect);
rt_kprintf("rect => x1:%d x2:%d, y1:%d y2:%d\r\n", rect.x1, rect.x2, rect.y1, rect.y2);
room_size_x = rect.x2 - rect.x1;
room_size_y = rect.y2 - rect.y1;
memcpy(&room_rect, &rect, sizeof(struct rtgui_rect));
rt_kprintf("room_rect => x1:%d x2:%d, y1:%d y2:%d\r\n",
room_rect.x1, room_rect.x2,
room_rect.y1, room_rect.y2);
lattice_size_x = (room_rect.x2 - room_rect.x1) / LATTICE_SIZE;
lattice_size_y = (room_rect.y2 - room_rect.y1) / LATTICE_SIZE;
lattice_size_x -= 2;
lattice_size_y -= 2;
rt_kprintf("lattice_size_x:%d lattice_size_y:%d\r\n",
lattice_size_x,
lattice_size_y);
tmp = (room_rect.x2 - room_rect.x1) - (LATTICE_SIZE * lattice_size_x);
lattice_rect.x1 = room_rect.x1 + (tmp / 2);
lattice_rect.x2 = lattice_rect.x1 + (LATTICE_SIZE * lattice_size_x);
tmp = (room_rect.y2 - room_rect.y1) - (LATTICE_SIZE * lattice_size_y);
lattice_rect.y1 = room_rect.y1 + (tmp / 2);
lattice_rect.y2 = lattice_rect.y1 + (LATTICE_SIZE * lattice_size_y);
rt_kprintf("lattice_rect => x1:%d x2:%d, y1:%d y2:%d\r\n",
lattice_rect.x1, lattice_rect.x2,
lattice_rect.y1, lattice_rect.y2);
/* create snake. */
{
point_t start;
map = map_init(lattice_size_x, lattice_size_y);
if (map != RT_NULL)
{
start.x = snake_init_pointx;
start.y = snake_init_pointy;
run_state = SNAKE_DIR_DOWN;
if (snake_init(&start, snake_length_init, run_state, map))
{
food_num = 1;
food_init(map, food_num);
}
else
{
map_deinit(map);
map = RT_NULL;
}
}
}
}
RTGUI_DC_BC(dc) = BACKGROUND_COLOR;
rtgui_dc_fill_rect(dc, &room_rect);
memcpy(&rect, &lattice_rect, sizeof(struct rtgui_rect));
rect.x2 += 1;
rect.y2 += 1;
RTGUI_DC_FC(dc) = WALL_COLOR;
rtgui_dc_draw_rect(dc, &rect);
for (i = 1; i < lattice_size_y; i++)
{
memcpy(&rect, &lattice_rect, sizeof(struct rtgui_rect));
rect.x1 += 1;
rect.x2 -= 1;
rtgui_dc_draw_horizontal_line(dc, rect.x1, rect.x2,
rect.y1 + (LATTICE_SIZE * i));
}
for (i = 1; i < lattice_size_x; i++)
{
memcpy(&rect, &lattice_rect, sizeof(struct rtgui_rect));
rect.y1 += 1;
rect.y2 -= 1;
rtgui_dc_draw_vertical_line(dc, rect.x1 + (LATTICE_SIZE * i),
rect.y1, rect.y2);
}
/* draw snake. */
{
rt_int32_t x, y;
rt_bool_t first_node = RT_TRUE;
for (y = 0; y < map->height; y++)
{
for (x = 0; x < map->width; x++)
{
switch (map->range[y * map->width + x])
{
case NORMAL:
break;
case FOOD:
snake_fill_lattice(dc, x, y, FOOD_COLOR);
break;
case OVER:
if (first_node)
{
first_node = RT_FALSE;
second_node.x = x;
second_node.y = y;
snake_fill_lattice(dc, x, y, SNAKE_HEAD_COLOR);
}
else
{
snake_fill_lattice(dc, x, y, SNAKE_COLOR);
}
break;
}
}
}
}
rtgui_dc_end_drawing(dc);
return;
}
