void desenha_buffer(Buffer* buffer, int largura, int altura){
	al_set_target_bitmap(buffer->buffer);
	al_clear_to_color(al_map_rgb(0, 0, 0));

	for( int i = 0; i < buffer->n_escudos; i++ )
		desenha_escudo( buffer->escudo[i] );

	draw_wave(buffer->invasores);

	desenha_tanque(buffer->tanque);
	char strScore[100];
	sprintf(strScore, "SCORE: %d", *(buffer->score));
	al_draw_text(buffer->fonte, al_map_rgb(255,255,255), 0, 10, 0, strScore );
	al_draw_text(buffer->fonte, al_map_rgb(255,255,255), buffer->largura_inicial/4*3, 10, ALLEGRO_ALIGN_RIGHT, "VIDAS");
	for(int i=0; i< *(buffer->vidas); i++)
		al_draw_bitmap(get_imagem_tanque(buffer->tanque),10+ buffer->largura_inicial/4*3 + i*(al_get_bitmap_width(get_imagem_tanque(buffer->tanque))+10), 5, 0);


	al_flip_display();
	al_set_target_backbuffer(buffer->display);
	al_draw_scaled_bitmap(buffer->buffer, 0, 0, buffer->largura_inicial, buffer->altura_inicial, 0, 0, largura, altura, 0);	
}
void desenha_buffer(Buffer* buffer, int largura, int altura){
	al_set_target_bitmap(buffer->buffer);
	al_clear_to_color(al_map_rgb(0, 0, 0));

	for( int i = 0; i < buffer->n_escudos; i++ )
		desenha_escudo( buffer->escudo[i] );

	draw_wave(buffer->invasores);
	if (buffer->ovni) desenha_nave(buffer->ovni);

	desenha_tanque(buffer->tanque);
	char strScore[100], strVidas[5];
	sprintf(strScore, "SCORE: %d", *(buffer->score));
	sprintf(strVidas, "X %d", *(buffer->vidas));
	al_draw_text(buffer->fonte, al_map_rgb(255,255,255), 0, 10, 0, strScore );
	al_draw_bitmap(get_imagem_tanque(buffer->tanque),10+ buffer->largura_inicial/5*3 , 5, 0);
	al_draw_text(buffer->fonte, al_map_rgb(255,255,255), buffer->largura_inicial/4*3, 10, 0, strVidas);


	al_flip_display();
	al_set_target_backbuffer(buffer->display);
	al_draw_scaled_bitmap(buffer->buffer, 0, 0, buffer->largura_inicial, buffer->altura_inicial, 0, 0, largura, altura, 0);	
}