game_status state_in_game(SDL_Renderer* renderer, game* p_game)
{
bool done=false;
//the return code is always GAME_OVER, the player try to beat his hi-score
//until his demise
game_status ret_code = GAME_OVER;
long timelastcall=SDL_GetTicks();
//initialize the states of completed lines to 0
memset(p_game->state,
0,
STATE_NUM * sizeof(int));
p_game->score = 0;
int level_cur = 0;
int level_max = 10;
level_init();
//declare two shapes, one controled by the player, the other to indicates
//the type of the next shape
shape o_falling_shape, o_preview_shape;
//set the falling shape type randomly
shape_set(&o_falling_shape, rand() % SHAPE_NB);
shape_default_coord(&o_falling_shape);
shape_type next_shape_type = rand() % SHAPE_NB;
shape_set(&o_preview_shape, next_shape_type);
//put the preview shape on the side of the board
o_preview_shape.x = LEVEL_WIDTH + 1;
o_preview_shape.y = o_preview_shape.len - SHAPE_SIZE / 2 + 2;
while (!done){
//drawing
SDL_SetRenderDrawColor(renderer, 0, 42, 0, 255);
SDL_RenderClear(renderer);
//draw the falling shape
shape_draw(&o_falling_shape, p_game->p_fontmap, renderer);
//draw the next shape as a preview
shape_draw(&o_preview_shape, p_game->p_fontmap, renderer);
//draw the level (empty blocks and alderly placed shapes)
level_draw(renderer, &o_falling_shape, p_game->p_fontmap);
int game_speed = level_max * 100 - level_cur * 100;
int total=0;
for(int i=0;i<3;i++)total += p_game->state[i];
//draw a line between the board and the score / next shape area
SDL_SetRenderDrawColor( renderer, 0x00, 0x00, 0xFF, 0xFF );
SDL_RenderDrawLine(renderer,
TILE_SIZE * 12,
0,
TILE_SIZE * 12,
SCREEN_HEIGHT);
//draw the score
fontmap_printf(p_game->p_fontmap,
SCREEN_WIDTH - 7*5,
SCREEN_HEIGHT - 120,
renderer,
"%d",
p_game->score);
SDL_Event event;
while (SDL_PollEvent(&event)){
if((event.type == SDL_KEYDOWN && event.key.keysym.sym == SDLK_RETURN)||
(event.type == SDL_JOYBUTTONDOWN && event.jbutton.button == 5)){
ret_code = state_paused(renderer);
if(ret_code!=STAY){
done = 1;
}
}
if(event.type == SDL_QUIT){
exit(EXIT_SUCCESS);
}
switch ( event.type )
{
case SDL_KEYDOWN:
switch (event.key.keysym.sym)
{
case SDLK_RIGHT:
if(shape_move(&o_falling_shape, 1, 0))o_falling_shape.x++;
break;
case SDLK_LEFT:
if(shape_move(&o_falling_shape, -1, 0))o_falling_shape.x--;
break;
case SDLK_DOWN:
if(shape_move(&o_falling_shape, 0, 1)) timelastcall=SDL_GetTicks()+game_speed;
break;
case SDLK_SPACE:
while(shape_move(&o_falling_shape, 0, 1)) o_falling_shape.y++;
timelastcall=SDL_GetTicks()+game_speed;
break;
case SDLK_f:
shape_rotate(&o_falling_shape, 0);
break;
case SDLK_d:
shape_rotate(&o_falling_shape, 1);
break;
case SDLK_q:
exit(EXIT_SUCCESS);
break;
default:
break;
}
break;
case SDL_JOYBUTTONDOWN:
switch(event.jbutton.button)
{
case 0:
while(shape_move(&o_falling_shape, 0, 1)) o_falling_shape.y++;
timelastcall=SDL_GetTicks()+game_speed;
break;
case 2:
shape_rotate(&o_falling_shape, 1);
break;
case 3:
shape_rotate(&o_falling_shape, 0);
break;
case 6:
done=true;
ret_code = QUIT;
break;
case 19:
done=true;
ret_code = QUIT;
break;
default:
break;
}
break;
}
}
if(SDL_GetTicks() - timelastcall > game_speed) {
//check if the falling shape can move
if(shape_move(&o_falling_shape, 0, 1)){
//update coord
o_falling_shape.y++;
}else{
//the shape can not move
int i;
level_add_shape(&o_falling_shape);
int lines_in_a_row=0;
//tab of line index to remove
int rem_tab[SHAPE_SIZE];
int line_nb = level_check_line(rem_tab);
for(i=1;i<line_nb;i++){
if(rem_tab[i] == rem_tab[i-1]+1)lines_in_a_row++;
else lines_in_a_row = 0;
}
if(line_nb){
//blink completed line(s)
blink(renderer, rem_tab, line_nb, p_game->p_fontmap);
for(i=0;i<line_nb;i++)level_remove_line(rem_tab[i]); //remove completed line(s)
p_game->score += line_nb * (lines_in_a_row + 1); //update score
p_game->state[lines_in_a_row]++; //update game states
if(line_nb == 2 && lines_in_a_row == 0)p_game->state[0]++;
level_cur = p_game->score / 1000; //eventually update level number
if(level_cur >= level_max)level_cur = level_max;
}
if(level_check_game_over()){
done = 1;
ret_code = GAME_OVER;
}
else{
//"create" a new falling block by chaning the falling shape type
//to the next shape and reseting the coords
shape_set(&o_falling_shape, next_shape_type);
shape_default_coord(&o_falling_shape);
//pick a next shape type randomly for the preview and the next falling
//block
next_shape_type = rand() % SHAPE_NB;
shape_set(&o_preview_shape, next_shape_type);
}
}
//update timer
timelastcall=SDL_GetTicks();
}
SDL_RenderPresent(renderer);
}
return ret_code;
}
static int tetris(int argc, char ** argv)
{
struct console * con = get_console_stdout();
u32_t x, y, shape;
u32_t newx, newy, newshape;
bool_t fell = FALSE;
bool_t try_again = FALSE;
u32_t code;
if(!con)
return -1;
console_setcursor(con, FALSE);
console_cls(con);
srand(jiffies + rand());
do {
screen_init();
y = 3;
x = GAME_AREA_WIDTH / 2;
shape = rand() % ARRAY_SIZE(shapes);
shape_draw(x, y, shape);
refresh();
while(1)
{
newx = x;
newy = y;
newshape = shape;
if(console_stdin_getcode_with_timeout(&code, 250))
{
switch(code)
{
case 0x10: /* up */
newshape = shapes[shape].plus90;
fell = FALSE;
break;
case 0xe: /* down */
if(y < GAME_AREA_HEIGHT - 1)
newy = y + 1;
fell = TRUE;
break;
case 0x2: /* left */
if(x > 0)
newx = x - 1;
fell = FALSE;
break;
case 0x6: /* right */
if(x < GAME_AREA_WIDTH - 1)
newx = x + 1;
fell = FALSE;
break;
default:
newy++;
fell = TRUE;
break;
}
}
else
{
newy++;
fell = TRUE;
}
if((newx == x) && (newy == y) && (newshape == shape))
continue;
shape_erase(x, y, shape);
if(shape_hit(newx, newy, newshape) == FALSE)
{
x = newx;
y = newy;
shape = newshape;
}
else if(fell == TRUE)
{
shape_draw(x, y, shape);
y = 3;
x = GAME_AREA_WIDTH / 2;
shape = rand() % ARRAY_SIZE(shapes);
collapse();
if(shape_hit(x, y, shape))
{
try_again = FALSE;
break;
}
}
shape_draw(x, y, shape);
refresh();
}
}while(try_again);
console_setcursor(con, TRUE);
console_setcolor(con, TCOLOR_WHITE, TCOLOR_BLACK);
console_cls(con);
return 0;
}
