int entity_move(ENTITY *e,int frame_time)
{
if(e==0)
return 0;
switch(e->type){
case PLAYER1:
move_player1(e,frame_time);
break;
case BULLET1:
move_bullet(e,frame_time);
break;
}
return 0;
}
/** Constructor for Instructions class. Loads all images and initializes timers and variables necessary to animate images of player and enemies
* @param parent is the parent widget
*/
Instructions::Instructions(QWidget *parent) :
QWidget(parent),
ui(new Ui::Instructions)
{
ui->setupUi(this);
// loads all instruction text
instructions1 = QPixmap(":/image/IMAGES/instructions1.png");
instructions2 = QPixmap(":/image/IMAGES/instructions2.png");
instructions3 = QPixmap(":/image/IMAGES/instructions3.png");
instructions3_5 = QPixmap(":/image/IMAGES/instructions3.5.png");
instructions4 = QPixmap(":/image/IMAGES/instructions4.png");
// loads images
player = QPixmap(":/image/IMAGES/spaceship.png");
enemy = QPixmap(":/image/IMAGES/invader.png");
player_bullet = QPixmap(":/image/IMAGES/player_bullet.png");
enemy_bullet = QPixmap(":/image/IMAGES/enemy_bullet.png");
boss = QPixmap(":/image/IMAGES/boss.png");
// sets up positions of images of player and enemies
moving_right = true;
boss_moving_right = true;
player_position = std::make_pair(560, 0);
starting_player_position = player_position;
player_bullet_position = std::make_pair(568, 125);
enemy_bullet_position = std::make_pair(566,220);
boss_position = std::make_pair(500, 325);
starting_boss_position = boss_position;
// sets up timer for animating images
move_timer = new QTimer(this);
move_timer->setInterval(15);
move_timer->start();
QObject::connect(move_timer, SIGNAL(timeout()), this, SLOT(move_player()));
QObject::connect(move_timer, SIGNAL(timeout()), this, SLOT(move_bullet()));
}
void timer(int num)
{
//不能在定时器里刷新屏幕，频率太高会显示不出来
if(game_state == GAME_RUNNING)
{
time_count++; //用于控制运动的速度
//背景移动
count_1++;
if(count_1 == 4)
{
count_1 = 0;
background.src_rect[0].y--;
if(background.src_rect[0].y == 0)
background.src_rect[0].y = 560;
}
//飞机移动，通过按键控制固定的速度
player.dst_rect.y += player.speed_y;
player.dst_rect.x += player.speed_x;
//检查飞机是否碰到边缘
check_edge(&player);
//子弹运动
move_bullet(bullet);
//敌人自动向下运动
int i, j;
if(time_count%2 == 0)
{
for(i = 0; i < MAX_SMALL_ENEMY; i++)
{
if(small_enemy[i].life > 0 && small_enemy[i].pic_index == 0)
{
small_enemy[i].dst_rect.y += 2;
}
//敌人死亡之后，显示爆炸效果的图片
else if(small_enemy[i].life == 0 && small_enemy[i].pic_index != 0)
{
if(time_count%4 == 0)
{
//显示被射击之后的图像效果
small_enemy[i].pic_index++;
//图像效果显示完之后，消失
if(small_enemy[i].pic_index == small_enemy[i].pic_num)
{
small_enemy[i].pic_index = 0;
//分数增加
score_record += 100;
}
}
}
//到底端消失
if(small_enemy[i].dst_rect.y > SCREEN_HEIGHT)
{
small_enemy[i].life = 0;
}
}
}
//---------------中型飞机---------------
if(time_count%4 == 0)
{
for(i = 0; i < MAX_MID_ENEMY; i++)
{
if(mid_enemy[i].life > 0 && mid_enemy[i].pic_index == 0)
{
mid_enemy[i].dst_rect.y += 2;
}
else if(mid_enemy[i].life >= 0 && mid_enemy[i].pic_index != 0)
{
if(time_count%8 == 0)
{
//显示被射击之后的图像效果
if(mid_enemy[i].pic_index == 1 && mid_enemy[i].life > 0)
{
mid_enemy[i].pic_index = 0;
mid_enemy[i].dst_rect.y += 2;
}
else if(mid_enemy[i].pic_index >= 1 && mid_enemy[i].life == 0)
mid_enemy[i].pic_index++;
//图像效果显示完之后，消失
if(mid_enemy[i].pic_index == mid_enemy[i].pic_num)
{
mid_enemy[i].pic_index = 0;
score_record += 300;
}
}
}
//到底端消失
if(mid_enemy[i].dst_rect.y > SCREEN_HEIGHT)
{
mid_enemy[i].life = 0;
}
}
}
//--------------------大飞机-----------------------
if(time_count%4 == 0)
{
for(i = 0; i < MAX_BIG_ENEMY; i++)
{
if(big_enemy[i].life > 0 && big_enemy[i].pic_index == 0)
{
big_enemy[i].dst_rect.y += 2;
}
else if(big_enemy[i].life >= 0 && big_enemy[i].pic_index != 0)
{
if(time_count%8 == 0)
{
//显示被射击之后的图像效果
if(big_enemy[i].pic_index == 1 && big_enemy[i].life > 0)
{
big_enemy[i].pic_index = 0;
big_enemy[i].dst_rect.y += 2;
}
//死亡后显示被射击的效果
else if(big_enemy[i].pic_index >= 1 && big_enemy[i].life == 0)
big_enemy[i].pic_index++;
//图像效果显示完之后，消失
if(big_enemy[i].pic_index == big_enemy[i].pic_num)
{
big_enemy[i].pic_index = 0;
score_record += 600;
}
}
}
//到底端消失
if(big_enemy[i].dst_rect.y > SCREEN_HEIGHT)
{
big_enemy[i].life = 0;
}
}
}
//将分数转化为字符串,并进行显示
show_score();
//玩家的飞机
if(time_count%2 == 0)
{
//死亡后显示爆炸效果
if(player.life == 0 && player.pic_index != 0)
{
if(time_count%4 == 0)
{
//显示被射击之后的图像效果
player.pic_index++;
//图像效果显示完之后，消失
}
}
//到底端消失
if(player.dst_rect.y > (SCREEN_HEIGHT-player.src_rect[0].h))
{
player.life = 0;
player.dst_rect.y = 0;
}
}
//飞机飞行动态
if(time_count == 10)
{
player.src_rect[0].x = 433;
player.src_rect[0].y = 331;
}
else if(time_count > 50 && time_count < 100)
{
player.src_rect[0].x = 433;
player.src_rect[0].y = 0;
}
else if(time_count == 100)
time_count = 0;
//自动射击
if(time_count %30 == 0)
{
// time_count = 0;
if(auto_shot_flag)
{
shot_bullet(&player, bullet);
}
}
}
}
static void update_game_on_ingame_scene(struct invaders_game *game,
long elapsed_time, int *scene_change) {
int i, j, k, n_living_invaders, invader_move_speed, block_hit_with, n_living_lines;
bool stepable, is_annihilation;
struct invader *shooting_invader, *line_head_invader,
*line_head_invaders[N_INVADERS_LAYOUT_Y], *invader_hit_with;
struct tochca *tochca_hit_with;
struct vector2 block_position;
if (GAME_EVENT_NONE == game->event) {
/* Interpret the key inputs */
switch (getch()) {
case 'a':
case KEY_LEFT:
--game->player_jet.position.y;
break;
case 'd':
case KEY_RIGHT:
++game->player_jet.position.y;
break;
case 'w':
case KEY_UP:
if (!game->player_bullet.active) {
game->player_bullet.active = true;
memcpy(&game->player_bullet.position,
&game->player_jet.position,
sizeof(game->player_bullet.position));
++game->player_bullet.position.y;
clear_timer(&game->player_bullet.moving_timer);
}
break;
default:
break;
}
/* Decide the current aggression level */
n_living_invaders = 0;
n_living_lines = 0;
memset(line_head_invaders, 0, sizeof(line_head_invaders));
for (i = 0; i < N_INVADERS_LAYOUT_Y; ++i) {
line_head_invader = NULL;
for (j = N_INVADERS_LAYOUT_X - 1; j >= 0; --j) {
struct invader *invader = &game->invader_team.members[i
* N_INVADERS_LAYOUT_X + j];
if (invader->alive) {
++n_living_invaders;
if (NULL == line_head_invader) {
line_head_invader = invader;
}
}
}
if (NULL != line_head_invader) {
line_head_invaders[n_living_lines] = line_head_invader;
++n_living_lines;
}
}
if (LEVEL7_THRESHOLD >= n_living_invaders) {
invader_move_speed = LEVEL7_MOVE_SPEED;
} else if (LEVEL6_THRESHOLD >= n_living_invaders) {
invader_move_speed = LEVEL6_MOVE_SPEED;
} else if (LEVEL5_THRESHOLD >= n_living_invaders) {
invader_move_speed = LEVEL5_MOVE_SPEED;
} else if (LEVEL4_THRESHOLD >= n_living_invaders) {
invader_move_speed = LEVEL4_MOVE_SPEED;
} else if (LEVEL3_THRESHOLD >= n_living_invaders) {
invader_move_speed = LEVEL3_MOVE_SPEED;
} else if (LEVEL2_THRESHOLD >= n_living_invaders) {
invader_move_speed = LEVEL2_MOVE_SPEED;
} else if (LEVEL1_THRESHOLD >= n_living_invaders) {
invader_move_speed = LEVEL1_MOVE_SPEED;
} else {
invader_move_speed = LEVEL0_MOVE_SPEED;
}
/* The commander invader appear on schedule */
if (!game->invader_team.commander.alive &&
count_timer(&game->invader_team.commander_turn_timer, elapsed_time)) {
game->invader_team.commander.alive = true;
game->invader_team.commander.position.x = COMMANDER_INVADER_START_POSITION_X;
game->invader_team.commander.position.y = COMMANDER_INVADER_START_POSITION_Y;
clear_timer(&game->invader_team.commander.moving_timer);
}
/* move the invaders */
stepable = false;
for (i = 0; i < N_ELEMENTS(game->invader_team.members); ++i) {
if (game->invader_team.members[i].alive) {
if (0 > game->invader_team.members[i].moving_speed_y
&&
INVADER_MOVING_RANGE_Y_MIN
>= game->invader_team.members[i].position.y) {
stepable = true;
break;
} else if (0 < game->invader_team.members[i].moving_speed_y
&&
INVADER_MOVING_RANGE_Y_MAX
<= game->invader_team.members[i].position.y) {
stepable = true;
break;
}
}
}
for (i = 0; i < N_ELEMENTS(game->invader_team.members); ++i) {
if (game->invader_team.members[i].alive) {
if (count_timer(&game->invader_team.members[i].moving_timer,
elapsed_time * invader_move_speed / 100)) {
if (stepable) {
game->invader_team.members[i].position.x += INVADER_INVASION_STEP_X;
game->invader_team.members[i].moving_speed_y *= -1;
} else {
game->invader_team.members[i].position.y += game->invader_team
.members[i].moving_speed_y;
}
}
}
}
if (game->invader_team.commander.alive) {
if (INVADER_MOVING_RANGE_Y_MAX <= game->invader_team.commander.position.y) {
game->invader_team.commander.alive = false;
clear_timer(&game->invader_team.commander_turn_timer);
} else if (count_timer(&game->invader_team.commander.moving_timer, elapsed_time)) {
++game->invader_team.commander.position.y;
}
}
/* Make the invader to shoot his bullet */
if (count_timer(&game->invader_team.shooting_timer, elapsed_time)) {
shooting_invader = line_head_invaders[rand() % n_living_lines];
assert(NULL != shooting_invader);
for (i = 0; i < N_ELEMENTS(game->invader_bullets); ++i) {
if (!game->invader_bullets[i].active) {
game->invader_bullets[i].active = true;
memcpy(&game->invader_bullets[i].position, &shooting_invader->position,
sizeof(game->invader_bullets[i].position));
game->invader_bullets[i].position.x += 2;
++game->invader_bullets[i].position.y;
clear_timer(&game->invader_bullets[i].moving_timer);
break;
}
}
}
/* move bullets */
move_bullet(&game->player_bullet, elapsed_time);
for (i = 0; i < N_ELEMENTS(game->invader_bullets); ++i) {
move_bullet(&game->invader_bullets[i], elapsed_time);
}
/* Detect player bullet hit */
if (game->player_bullet.active) {
tochca_hit_with = detect_collieded_with_tochcas(&game->player_bullet.position,
game->tochcas,
N_ELEMENTS(game->tochcas),
&block_hit_with);
if (NULL != tochca_hit_with) {
game->player_bullet.active = false;
tochca_hit_with->block_standings[block_hit_with] = false;
} else {
invader_hit_with = NULL;
for (j = 0; j < N_ELEMENTS(game->invader_team.members); ++j) {
if (detect_collieded_with_invader(&game->player_bullet.position,
&game->invader_team.members[j])) {
invader_hit_with = &game->invader_team.members[j];
break;
}
}
if (NULL == invader_hit_with) {
if (game->invader_team.commander.alive &&
detect_collided(&game->player_bullet.position, NULL,
&game->invader_team.commander.position,
&game->invader_team.commander.size)) {
invader_hit_with = &game->invader_team.commander;
}
}
if (NULL != invader_hit_with) {
game->player_bullet.active = false;
invader_hit_with->alive = false;
game->score +=
(COMMANDER_INVADER == invader_hit_with->type) ?
COMMANDER_INVADER_SCORE :
(SENIOR_INVADER == invader_hit_with->type) ?
SENIOR_INVADER_SCORE :
(YOUNG_INVADER == invader_hit_with->type) ?
YOUNG_INVADER_SCORE : LOOKIE_INVADER_SCORE;
}
}
}
/* Detect invader bullet hit */
for (i = 0; i < N_ELEMENTS(game->invader_bullets); ++i) {
struct bullet *bullet = &game->invader_bullets[i];
if (bullet->active) {
if (detect_collided(&bullet->position, NULL, &game->player_jet.position,
&game->player_jet.size)) {
bullet->active = false;
if (0 < game->credit) {
game->credit -= 1;
} else {
invoke_event(game, GAME_OVER_EVENT);
}
} else if (game->player_bullet.active &&
game->player_bullet.position.x <= bullet->position.x &&
game->player_bullet.position.y == bullet->position.y) {
game->player_bullet.active = false;
bullet->active = false;
} else {
tochca_hit_with = detect_collieded_with_tochcas(&bullet->position,
(struct tochca *) game->tochcas,
N_ELEMENTS(game->tochcas),
&block_hit_with);
if (NULL != tochca_hit_with) {
bullet->active = false;
tochca_hit_with->block_standings[block_hit_with] = false;
}
}
}
}
/* Detect invaders hit with tochcas */
for (i = 0; i < N_ELEMENTS(game->tochcas); ++i) {
for (j = 0; j < N_ELEMENTS(game->tochcas[i].block_standings); ++j) {
if (game->tochcas[i].block_standings[j]) {
for (k = 0; k < N_ELEMENTS(game->invader_team.members); ++k) {
get_tochca_block_position(&game->tochcas[i], j, &block_position);
if (detect_collieded_with_invader(&block_position,
&game->invader_team.members[k])) {
game->tochcas[i].block_standings[j] = false;
break;
}
}
}
}
}
/* Check the annihilation */
is_annihilation = true;
for (i = 0; i < N_ELEMENTS(game->invader_team.members); ++i) {
if (game->invader_team.members[i].alive) {
is_annihilation = false;
break;
}
}
if (is_annihilation) {
invoke_event(game, GAME_CLEAR_EVENT);
}
/* Detect player jet hit with the invaders */
if (GAME_EVENT_NONE == game->event) {
for (i = 0; i < N_ELEMENTS(game->invader_team.members); ++i) {
if (game->invader_team.members[i].alive &&
detect_collided(&game->player_jet.position,
&game->player_jet.size,
&game->invader_team.members[i].position,
&game->invader_team.members[i].size)) {
invoke_event(game, GAME_OVER_EVENT);
break;
}
}
}
/* Check the invasion */
if (GAME_EVENT_NONE == game->event) {
for (i = 0; i < n_living_lines; ++i) {
if (line_head_invaders[i]->alive &&
INVADER_INVASION_THRESHOLD_POSITION_X
<= line_head_invaders[i]->position.x + 1) {
invoke_event(game, GAME_OVER_EVENT);
break;
}
}
}
} else {
/* Clean the input buffer */
getch();
}
/* Update the caption timer */
if (game->event_caption.displaying
&& count_timer(&game->event_caption.timer, elapsed_time)) {
game->event_caption.displaying = false;
*scene_change = TITLE_SCENE;
}
}
