void paddle_init_ball(float dir)
{
float angle = t3f_drand(&rng_state) * ALLEGRO_PI;
ball.x = 320.0 - 16.0 / 2.0;
ball.y = 240.0 - 16.0 / 2.0;
t3f_move_collision_object_xy(ball.object, ball.x, ball.y);
ball.vx = cos(angle) * EXAMPLE_START_SPEED * dir;
ball.vy = sin(angle) * EXAMPLE_START_SPEED * dir;
if(ball.vx > 0.0 && dir < 0.0)
{
ball.vx = -ball.vx;
}
else if(ball.vx < 0.0 && dir > 0.0)
{
ball.vx = -ball.vx;
}
ball.active = true;
/* handle AI */
if(ball.vx > 0)
{
paddle[1].dy = paddle_ai_predict_y() - 32 + 8.0;
paddle[1].dvy = t3f_drand(&rng_state) * 6.0 - 3.0;
}
}
/* function to set up a new level */
void dot_game_setup_level(void * data, int level)
{
APP_INSTANCE * app = (APP_INSTANCE *)data;
int i, j;
int col = 0;
int num_balls = DOT_GAME_LEVEL_BASE_BALLS + level * DOT_GAME_LEVEL_BALLS_INC;
int num_black_balls = DOT_GAME_LEVEL_BASE_BLACK_BALLS + (level / 2) * DOT_GAME_LEVEL_BLACK_BALLS_INC;
/* initialize balls */
memset(app->game.ball, 0, sizeof(DOT_BALL) * DOT_GAME_MAX_BALLS);
for(i = 0; i < num_balls && i < DOT_GAME_MAX_BALLS; i++)
{
app->game.ball[i].r = DOT_GAME_BALL_SIZE;
app->game.ball[i].x = t3f_drand(&app->rng_state) * ((float)(DOT_GAME_PLAYFIELD_WIDTH) - app->game.ball[i].r * 2.0) + app->game.ball[i].r;
app->game.ball[i].y = t3f_drand(&app->rng_state) * ((float)(DOT_GAME_PLAYFIELD_HEIGHT) - app->game.ball[i].r * 2.0) + app->game.ball[i].r;
app->game.ball[i].z = 0;
app->game.ball[i].a = t3f_drand(&app->rng_state) * ALLEGRO_PI * 2.0;
app->game.ball[i].s = t3f_drand(&app->rng_state) * 0.75 + 0.25;
app->game.ball[i].vx = cos(app->game.ball[i].a) * app->game.ball[i].s;
app->game.ball[i].vy = sin(app->game.ball[i].a) * app->game.ball[i].s;
app->game.ball[i].type = col;
col++;
if(col > 5)
{
col = 0;
}
app->game.ball[i].active = true;
}
/* add black balls */
for(j = i; j < i + num_black_balls && j < DOT_GAME_MAX_BALLS; j++)
{
app->game.ball[j].r = DOT_GAME_BALL_SIZE;
app->game.ball[j].x = t3f_drand(&app->rng_state) * ((float)(DOT_GAME_PLAYFIELD_WIDTH) - app->game.ball[j].r * 2.0) + app->game.ball[i].r;
app->game.ball[j].y = t3f_drand(&app->rng_state) * ((float)(DOT_GAME_PLAYFIELD_HEIGHT) - app->game.ball[j].r * 2.0) + app->game.ball[i].r;
app->game.ball[j].z = 0;
app->game.ball[j].a = t3f_drand(&app->rng_state) * ALLEGRO_PI * 2.0;
app->game.ball[j].s = t3f_drand(&app->rng_state) * 0.75 + 0.25;
app->game.ball[j].vx = cos(app->game.ball[j].a) * app->game.ball[j].s;
app->game.ball[j].vy = sin(app->game.ball[j].a) * app->game.ball[j].s;
app->game.ball[j].type = 6;
app->game.ball[j].active = true;
}
/* drop the player with a random color */
dot_game_drop_player(data, t3f_rand(&app->rng_state) % 6);
t3f_play_sample(app->sample[DOT_SAMPLE_START], 1.0, 0.0, 1.0);
app->game.player.ball.r = 16.0;
dot_game_target_balls(data, app->game.player.ball.type);
app->game.level = level;
app->game.speed = DOT_GAME_LEVEL_BASE_SPEED;
app->game.speed_inc = DOT_GAME_LEVEL_TOP_SPEED / (float)num_balls;
app->game.level_start = true;
}
static void dot_game_create_splash_effect(void * data, float x, float y, float r, ALLEGRO_COLOR color)
{
APP_INSTANCE * app = (APP_INSTANCE *)data;
int i;
float ga, gx, gy;
for(i = 0; i < r * 8.0; i++)
{
ga = t3f_drand(&app->rng_state) * ALLEGRO_PI * 2.0;
gx = cos(ga) * t3f_drand(&app->rng_state) * r * t3f_drand(&app->rng_state);
gy = sin(ga) * t3f_drand(&app->rng_state) * r * t3f_drand(&app->rng_state);
dot_create_particle(&app->particle[app->current_particle], x + gx, y + gy, 0.0, cos(ga) * t3f_drand(&app->rng_state), sin(ga) * t3f_drand(&app->rng_state), t3f_drand(&app->rng_state) * -5.0 - 5.0, 0.5, 5.0, 30, app->bitmap[DOT_BITMAP_PARTICLE], color);
app->current_particle++;
if(app->current_particle >= DOT_MAX_PARTICLES)
{
app->current_particle = 0;
}
}
}
int main(int argc, char * argv[])
{
int i;
char fn[1024] = {0};
if(!t3f_initialize("ex_atlas", 640, 480, 60.0, logic, render, T3F_USE_KEYBOARD | T3F_USE_MOUSE, NULL))
{
return 1;
}
t3f_srand(&rng_state, time(0));
/* load bitmaps into sprite sheet */
atlas = t3f_create_atlas(512, 512);
if(!atlas)
{
printf("Failed to create atlas!\n");
return 0;
}
for(i = 0; i < 8; i++)
{
sprintf(fn, "data/%d.png", i);
bitmap[i] = al_load_bitmap(fn);
if(!bitmap[i])
{
return 1;
}
t3f_add_bitmap_to_atlas(atlas, &bitmap[i], T3F_ATLAS_SPRITE);
}
for(i = 0; i < 1024; i++)
{
object[i].x = t3f_drand(&rng_state) * 640.0;
object[i].y = t3f_drand(&rng_state) * 480.0;
object[i].vx = t3f_drand(&rng_state) * 4.0 - 2.0;
object[i].vy = t3f_drand(&rng_state) * 4.0 - 2.0;
object[i].bitmap = t3f_rand(&rng_state) % 8;
}
t3f_run();
return 0;
}
void dot_setup_bg_objects(void * data)
{
APP_INSTANCE * app = (APP_INSTANCE *)data;
int i;
float s, a;
t3f_srand(&dot_bg_rng_state, time(0));
/* initialize background objects */
memset(app->bg_object, 0, sizeof(DOT_BG_OBJECT) * DOT_MAX_BG_OBJECTS);
a = ALLEGRO_PI / 8.0; // angle slightly toward the player
for(i = 0; i < DOT_MAX_BG_OBJECTS; i++)
{
s = t3f_drand(&dot_bg_rng_state) * 0.5 + 0.25;
s = 0.25;
app->bg_object[i].x = t3f_drandom(&dot_bg_rng_state, DOT_GAME_PLAYFIELD_WIDTH + DOT_GAME_BALL_SIZE) - DOT_GAME_BALL_SIZE;
app->bg_object[i].y = t3f_drandom(&dot_bg_rng_state, DOT_GAME_PLAYFIELD_HEIGHT + DOT_GAME_BALL_SIZE) - DOT_GAME_BALL_SIZE;
app->bg_object[i].z = -t3f_drandom(&dot_bg_rng_state, 320.0);
app->bg_object[i].vx = -cos(a) * s;
app->bg_object[i].vy = 0.0;
app->bg_object[i].vz = -sin(a) * s;
}
}
/* render routines, passed to T^3 Framework */
void paddle_render(void * data)
{
/* render switch, render graphics according to which state we are in */
switch(paddle_state)
{
case EXAMPLE_STATE_TITLE:
{
/* draw background */
al_draw_bitmap(paddle_bitmap[EXAMPLE_BITMAP_BG], 0.0, 0.0, 0);
/* center logo */
al_draw_bitmap(paddle_bitmap[EXAMPLE_BITMAP_LOGO], al_get_display_width(t3f_display) / 2 - al_get_bitmap_width(paddle_bitmap[EXAMPLE_BITMAP_LOGO]) / 2, 32.0, 0);
/* draw menu */
t3f_render_gui(paddle_menu);
break;
}
case EXAMPLE_STATE_GAME:
{
int i;
/* draw background */
al_draw_bitmap(paddle_bitmap[EXAMPLE_BITMAP_BG], 0.0, 0.0, 0);
/* draw game objects */
for(i = 0; i < 2; i++)
{
if(paddle[i].active)
{
al_draw_bitmap(paddle_bitmap[EXAMPLE_BITMAP_PADDLE], paddle[i].x, paddle[i].y, 0);
}
if(ball.active)
{
al_draw_bitmap(paddle_bitmap[EXAMPLE_BITMAP_BALL], ball.x, ball.y, 0);
}
}
/* draw scores */
al_draw_textf(paddle_font[EXAMPLE_FONT_GAME], al_map_rgba(0, 0, 0, 255), 10.0, 0.0, 0, "Player 1: %d", score[0]);
al_draw_textf(paddle_font[EXAMPLE_FONT_GAME], al_map_rgba(0, 0, 0, 255), 540.0, 0.0, 0, "Player 2: %d", score[1]);
break;
}
case EXAMPLE_STATE_GAME_OVER:
{
/* draw background */
al_draw_bitmap(paddle_bitmap[EXAMPLE_BITMAP_BG], 0.0, 0.0, 0);
/* draw results */
al_draw_filled_circle(640.0 * t3f_drand(&rng_state), 480.0 * t3f_drand(&rng_state), 10.0 + 32.0 * t3f_drand(&rng_state), al_map_rgba(0, 0, 192, 128));
al_draw_filled_rectangle(220.0, 192.0, 420.0, 280.0, al_map_rgba(0, 192, 0, 128));
al_draw_rectangle(220.0, 192.0, 420.0, 280.0, al_map_rgba(0, 0, 0, 255), 2.0);
al_draw_textf(paddle_font[EXAMPLE_FONT_MENU], al_map_rgba(0, 0, 0, 255), 320.0, 200.0, ALLEGRO_ALIGN_CENTRE, "Player %d Wins!", score[0] > score[1] ? 1 : 2);
al_draw_textf(paddle_font[EXAMPLE_FONT_GAME], al_map_rgba(0, 0, 0, 255), 320.0, 240.0, ALLEGRO_ALIGN_CENTRE, "Click to continue...");
break;
}
}
}
/* logic routines, passed to T^3 Framework */
void paddle_logic(void * data)
{
/* logic switch, use different logic for each state */
switch(paddle_state)
{
case EXAMPLE_STATE_TITLE:
{
t3f_process_gui(paddle_menu, data);
break;
}
case EXAMPLE_STATE_GAME:
{
/* return to menu if Escape pressed */
if(t3f_key[ALLEGRO_KEY_ESCAPE])
{
paddle_game_exit();
}
/* store old paddle positions */
paddle[0].oy = paddle[0].y;
paddle[1].oy = paddle[1].y;
/* move paddle */
paddle[0].y = t3f_mouse_y - 32;
if(paddle[0].y < 0)
{
paddle[0].y = 0;
}
if(paddle[0].y > 480.0 - 64.0)
{
paddle[0].y = 480.0 - 64.0;
}
t3f_move_collision_object_xy(paddle[0].object, paddle[0].x, paddle[0].y);
/* move CPU paddle */
if(ball.vx > 0.0)
{
if(ball.x > paddle[1].x - 24)
{
paddle[1].y += paddle[1].dvy;
}
else
{
if(paddle[1].y < paddle[1].dy - 2.0)
{
paddle[1].y += 2.0;
if(paddle[1].y > 480.0 - 64.0)
{
paddle[1].y = 480.0 - 64.0;
}
}
else if(paddle[1].y > paddle[1].dy + 2.0)
{
paddle[1].y -= 2.0;
if(paddle[1].y < 0.0)
{
paddle[1].y = 0.0;
}
}
}
/* correct paddle position so it doesn't go past edge */
if(paddle[1].y > 480.0 - 64.0)
{
paddle[1].y = 480.0 - 64.0;
}
if(paddle[1].y < 0.0)
{
paddle[1].y = 0.0;
}
}
t3f_move_collision_object_xy(paddle[1].object, paddle[1].x, paddle[1].y);
/* move ball */
ball.x += ball.vx;
t3f_move_collision_object_xy(ball.object, ball.x, ball.y);
if(ball.vx < 0 && t3f_check_object_collision(paddle[0].object, ball.object))
{
al_play_sample(paddle_sample[EXAMPLE_SAMPLE_HIT], 0.5, 0.5, 1.0, ALLEGRO_PLAYMODE_ONCE, NULL);
ball.x = paddle[0].x + 16.0;
ball.vx = -ball.vx;
ball.vx += EXAMPLE_SPEED_INCREASE;
ball.vy -= (paddle[0].oy - paddle[0].y) / 4.0;
if(ball.vy < -3.0)
{
ball.vy = -3.0;
}
if(ball.vy > 3.0)
{
ball.vy = 3.0;
}
paddle[1].dy = paddle_ai_predict_y() - 32 + 8.0;
paddle[1].dvy = t3f_drand(&rng_state) * 6.0 - 3.0;
}
else if(ball.vx > 0 && t3f_check_object_collision(paddle[1].object, ball.object))
{
al_play_sample(paddle_sample[EXAMPLE_SAMPLE_HIT], 0.5, 0.5, 1.0, ALLEGRO_PLAYMODE_ONCE, NULL);
ball.x = paddle[1].x - 16.0 - 1.0;
ball.vx = -ball.vx;
ball.vx -= EXAMPLE_SPEED_INCREASE;
ball.vy -= (paddle[1].oy - paddle[1].y) / 4.0;
if(ball.vy < -3.0)
{
ball.vy = -3.0;
}
if(ball.vy > 3.0)
{
ball.vy = 3.0;
}
}
if(ball.x < -16.0)
{
al_play_sample(paddle_sample[EXAMPLE_SAMPLE_SCORE], 0.5, 0.5, 1.0, ALLEGRO_PLAYMODE_ONCE, NULL);
score[1]++;
if(score[1] >= 5)
{
t3f_stop_music();
paddle_state = EXAMPLE_STATE_GAME_OVER;
}
paddle_init_ball(1.0);
}
else if(ball.x > 640.0)
{
al_play_sample(paddle_sample[EXAMPLE_SAMPLE_SCORE], 0.5, 0.5, 1.0, ALLEGRO_PLAYMODE_ONCE, NULL);
score[0]++;
if(score[0] >= 5)
{
t3f_stop_music();
paddle_state = EXAMPLE_STATE_GAME_OVER;
}
paddle_init_ball(-1.0);
}
ball.y += ball.vy;
if(ball.y < 0.0)
{
ball.y = 0.0;
ball.vy = -ball.vy;
}
else if(ball.y > 480.0 - 16.0)
{
ball.y = 480.0 - 16.0;
ball.vy = -ball.vy;
}
break;
}
case EXAMPLE_STATE_GAME_OVER:
{
/* return to menu if Escape pressed */
if(t3f_mouse_button[0] || t3f_key[ALLEGRO_KEY_ESCAPE])
{
paddle_game_exit();
}
break;
}
}
}
