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Copy pathstall_main.c
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stall_main.c
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/* stall - shoot them all game */
#include <stdio.h>
#include <stdlib.h> /* for malloc */
#include <string.h> /* for memset */
#include <time.h> /* for time */
#include <unistd.h> /* for usleep */
#include <SDL.h>
#include <SDL_gfxPrimitives.h>
#include <SDL_ttf.h>
#include "stall_types.h"
#include "stall_ini.h"
#include "stall_ai.h"
#include "stall_render.h"
void wave_inc();
void wave_end();
void stall_quit();
void stall_player_shot();
void stall_inc_score(unsigned int);
void stall_reset();
void dead_part_create(int, int);
void stall_objects_clear();
char *version = "0.83a";
global_t global;
player_ship_t *player_ship;
enemy_ship_t enemy_ship[MAX_ENEMIES];
bullet_t player_bullet[PLAYER_BULLETS] = {0}; /* all elements set to zero */
bullet_t enemy_bullet[ENEMY_BULLETS] = {0};
wave_t waves[WAVE_NUM] = {0};
bonus_t bonus[BONUS_NUM] = {0};
bonus_defshield_t bonus_defshield;
dead_parts_t dead_parts[TOTAL_DEAD_PARTS] = {0}; /* dead_parts v2.0 */
TTF_Font *font[5];
/* contains pressed keys. 1 - held, 0 - released */
enum keys_t keys[KEY_MAX] = {0};
/* --- menu functions --- */
void menu_down()
{
if (global.focus == FOCUS_MAX - 1)
global.focus = 0;
else
global.focus++;
}
void menu_up()
{
if (global.focus > FOCUS_START)
global.focus--;
else
global.focus = FOCUS_MAX - 1;
}
void menu_execute()
{
switch (global.focus)
{
case FOCUS_START:
{
global.state = STATE_WAVESTART;
global.wavestart_time = SDL_GetTicks();
debug("switched to STATE_WAVESTART\n");
break;
}
case FOCUS_OPTIONS:
{
break;
}
case FOCUS_EXIT:
{
stall_quit();
break;
}
default:
break;
}
}
/* --- keyboard functions --- */
void key_press(SDL_keysym *keysym)
{
//debug("press\n");
switch (keysym->sym)
{
case SDLK_ESCAPE:
{
stall_quit();
break;
}
case SDLK_LEFT:
{
keys[KEY_LEFT] = 1;
break;
}
case SDLK_RIGHT:
{
keys[KEY_RIGHT] = 1;
break;
}
case SDLK_UP:
{
keys[KEY_UP] = 1;
if (global.state == STATE_MENU)
menu_up();
break;
}
case SDLK_DOWN:
{
keys[KEY_DOWN] = 1;
if (global.state == STATE_MENU)
menu_down();
break;
}
case SDLK_SPACE:
{
if (global.state == STATE_MENU)
{
menu_execute();
break;
}
if (global.state == STATE_MAIN)
stall_player_shot();
break;
}
case SDLK_PAGEDOWN:
{
if (global.state == STATE_MAIN)
{
wave_end();
debug("level changed.\n");
}
break;
}
default:
break;
}
return;
}
void key_release(SDL_keysym *keysym)
{
//debug("release\n");
switch (keysym->sym)
{
case SDLK_ESCAPE:
{
stall_quit();
break;
}
case SDLK_LEFT:
{
keys[KEY_LEFT] = 0;
break;
}
case SDLK_RIGHT:
{
keys[KEY_RIGHT] = 0;
break;
}
case SDLK_UP:
{
keys[KEY_UP] = 0;
break;
}
case SDLK_DOWN:
{
keys[KEY_DOWN] = 0;
break;
}
default:
break;
}
return;
}
void stall_keyboard(void)
{
while (SDL_PollEvent(&global.event))
{
switch (global.event.type)
{
case SDL_KEYDOWN:
key_press(&global.event.key.keysym);
break;
case SDL_KEYUP:
key_release(&global.event.key.keysym);
break;
default:
break;
}
}
}
/* ---------------------------- destroying enemy functions ------------------ */
/* enemy gets killed by bullet - few dead parts created */
void stall_kill_enemy(int ship_num)
{
int i;
if (enemy_ship[ship_num].alive)
{
enemy_ship[ship_num].alive = 0;
global.enemies_alive--;
//debug("enemy #%d killed \n",ship_num);
if (global.state == STATE_MAIN)
stall_inc_score(ENEMY_COST);
/* create dead_parts. quantity according to current wave */
for (i = 0; i < waves[global.wave].dead_parts_num; i++)
{
dead_part_create(ship_num,i);
}
}
}
/* enemy gets crushed by player_ship - no dead parts created */
void stall_krash_enemy(int ship_num)
{
int i;
if (enemy_ship[ship_num].alive)
{
enemy_ship[ship_num].alive = 0;
global.enemies_alive--;
debug("enemy #%d krushed \n",ship_num);
if (global.state == STATE_MAIN)
stall_inc_score(ENEMY_COST);
if (bonus[BONUS_RAM].on_player)
return;
}
}
/* --- BONUS_DEF_SHIELD functions --- */
void bonus_defshield_move()
{
bonus_defshield.crd.x1 = player_ship->crd.x1 - BONUS_DEFSHIELD_SIZE;
bonus_defshield.crd.y1 = player_ship->crd.y1 - BONUS_DEFSHIELD_SIZE;
bonus_defshield.crd.x2 = player_ship->crd.x2 + BONUS_DEFSHIELD_SIZE;
bonus_defshield.crd.y2 = player_ship->crd.y2 + BONUS_DEFSHIELD_SIZE;
}
void bonus_defshield_setenergy(int energy)
{
bonus_defshield.energy = energy;
}
void bonus_defshield_blink()
{
static Uint32 cur_time, prev_time = 0;
if (!bonus_defshield.blinking)
return;
cur_time = SDL_GetTicks();
if (cur_time - prev_time > BONUS_DEFSHIELD_BLINK_FREQ)
{
bonus_defshield.show = !bonus_defshield.show;
prev_time = cur_time;
}
}
void bonus_defshield_create()
{
bonus_defshield_move();
bonus_defshield.show = 1;
bonus_defshield_setenergy(100);
}
void bonus_defshield_destroy()
{
bonus[BONUS_DEF_SHIELD].on_player = 0;
bonus_defshield.show = 0;
bonus_defshield.blinking = 0;
debug("defshield destroyed \n");
}
void bonus_defshield_decenergy(int energy)
{
bonus_defshield.energy -=energy;
debug("decenergy %d , remain: %d \n", energy, bonus_defshield.energy);
if (bonus_defshield.energy <= 0)
bonus_defshield_destroy();
}
/* --- END BONUS_DEF_SHIELD functions --- */
/* --- BONUS_RANDOMBOMB functions --- */
void bonus_randombomb()
{
int i, cnt = 0;
for (i = 0; i < MAX_ENEMIES; i++)
{
if (enemy_ship[i].alive)
{
stall_kill_enemy(i);
cnt++;
}
if (cnt == BONUS_RANDOMBOMB_ENEMIES)
break;
}
}
/* --- BONUS_RAM functions --- */
void bonus_ram_start()
{
player_ship->ram = 1;
}
void bonus_ram_stop()
{
player_ship->ram = 0;
}
/* --- BONUS_AIM functions --- */
/* need to find the closest one */
void bonus_aim_target(int num)
{
int i;
/* player coords */
int base_x = player_ship->crd.x1 + PLAYER_WIDTH/2;
int base_y = player_ship->crd.y1;
/* enemy coord */
int cur_target_pts, cur_target_num;
int target_pts = BONUS_AIM_ERRVALUE, target_num = BONUS_AIM_ERRVALUE;
for (i = 0; i < MAX_ENEMIES; i++)
{
if (enemy_ship[i].alive)
{
/* calculate distance (points) from base to target by x+y sum */
cur_target_pts = base_x - (enemy_ship[i].crd.x1 + waves[global.wave].enemy_width/2);
cur_target_pts += base_y - enemy_ship[i].crd.y2;
/* if we found the closer target - save its num and points */
if (cur_target_pts < target_pts)
{
target_pts = cur_target_pts;
target_num = i;
}
}
}
if (target_pts == BONUS_AIM_ERRVALUE || target_num == BONUS_AIM_ERRVALUE)
{
enemy_bullet[num].target_id = -1;
debug("error: no aim target found! \n");
}
else
{
enemy_bullet[num].target_id = target_num;
debug(" target found: #%d \n",target_num);
}
}
void bonus_aim_move()
{
//if (enemy_bullet[num].target_id > 0)
/*TODO: change bullet coords here (move) */
}
/* yes we decrease coord first and then check.
if value is negative - set it to 0.
so we need signed int coords
*/
void stall_player_move()
{
/* cant control dead ship */
if (!player_ship->alive)
return;
if (keys[KEY_LEFT])
{
player_ship->crd.x1 -= player_ship->speed;
player_ship->crd.x2 -= player_ship->speed;
if (player_ship->crd.x1 < 0)
{
player_ship->crd.x1 = 0;
player_ship->crd.x2 = PLAYER_WIDTH;
}
}
if (keys[KEY_RIGHT])
{
player_ship->crd.x1 += player_ship->speed;
player_ship->crd.x2 += player_ship->speed;
if (player_ship->crd.x2 > GAME_WIDTH)
{
player_ship->crd.x2 = GAME_WIDTH;
player_ship->crd.x1 = GAME_WIDTH - PLAYER_WIDTH;
}
}
if (keys[KEY_UP])
{
player_ship->crd.y1 -= player_ship->speed;
player_ship->crd.y2 -= player_ship->speed;
if (player_ship->crd.y1 < 0)
{
player_ship->crd.y1 = 0;
player_ship->crd.y2 = PLAYER_HEIGHT;
}
}
if (keys[KEY_DOWN])
{
player_ship->crd.y1 += player_ship->speed;
player_ship->crd.y2 += player_ship->speed;
if (player_ship->crd.y2 > GAME_HEIGHT)
{
player_ship->crd.y2 = GAME_HEIGHT;
player_ship->crd.y1 = GAME_HEIGHT - PLAYER_HEIGHT;
}
}
bonus_defshield_move();
}
void stall_player_ship_creator()
{
player_ship->crd.x1 = GAME_WIDTH/2;
player_ship->crd.y1 = GAME_HEIGHT/2 + 100;
player_ship->crd.x2 = player_ship->crd.x1 + PLAYER_WIDTH;
player_ship->crd.y2 = player_ship->crd.y1 + PLAYER_HEIGHT;
player_ship->speed = PLAYER_SPEED;
player_ship->bullet_speed = PLAYER_BULLET_SPEED;
player_ship->alive = 1;
player_ship->dead_frame = 0;
player_ship->ram = 0;
}
void stall_enemy_ship_creator()
{
if (global.enemies_alive < MAX_ENEMIES)
{
int i;
for (i = 0; i < MAX_ENEMIES; i++)
{
if (!enemy_ship[i].alive)
{
/* choose - appear from left or from right side */
int rnd = rand() % 3;
if (rnd == 0) /* from left side */
{
enemy_ship[i].crd.x1 = - waves[global.wave].enemy_width + 5;
enemy_ship[i].crd.y1 = rand() % (GAME_HEIGHT/2);
enemy_ship[i].move = MOVE_RIGHT;
enemy_ship[i].goal_x = rand() % (GAME_WIDTH - waves[global.wave].enemy_width);
enemy_ship[i].goal_y = enemy_ship[i].crd.y1;
}
if (rnd == 1) /* from right side */
{
enemy_ship[i].crd.x1 = GAME_WIDTH - 5;
enemy_ship[i].crd.y1 = rand() % (GAME_HEIGHT/2);
enemy_ship[i].move = MOVE_LEFT;
enemy_ship[i].goal_x = rand() % (GAME_WIDTH - waves[global.wave].enemy_width);
enemy_ship[i].goal_y = enemy_ship[i].crd.y1;
}
if (rnd == 2) /* from top side */
{
enemy_ship[i].crd.x1 = rand() % (GAME_WIDTH - waves[global.wave].enemy_width);
enemy_ship[i].crd.y1 = - waves[global.wave].enemy_height + 5;
enemy_ship[i].move = MOVE_DOWN;
enemy_ship[i].goal_x = enemy_ship[i].crd.x1;
enemy_ship[i].goal_y = rand() % 400;
}
/* enemy_ship[i].crd.x1 = rand() % (GAME_WIDTH - waves[global.wave].enemy_width);
enemy_ship[i].move = MOVE_DONT; */
/* common */
enemy_ship[i].crd.x2 = enemy_ship[i].crd.x1 + waves[global.wave].enemy_width;
enemy_ship[i].crd.y2 = enemy_ship[i].crd.y1 + waves[global.wave].enemy_height;
enemy_ship[i].speed = waves[global.wave].enemy_speed;
enemy_ship[i].bullet_speed = ENEMY_BULLET_SPEED;
enemy_ship[i].mental = rand() % MENTAL_MAX;
enemy_ship[i].in_action = 1;
enemy_ship[i].alive = 1;
enemy_ship[i].anim = 0;
enemy_ship[i].time_anim = 0;
break;
}
}
global.enemies_alive++;
debug("enemy created. alive: %u, speed %u, mental %d \n",
global.enemies_alive, enemy_ship[i].speed, enemy_ship[i].mental);
}
}
void wave_inc()
{
global.wave++;
}
/* called once when wave is ended */
void wave_end()
{
int i;
debug("wave end(). #%u \n", global.wave);
/* this is STATE_WAVEEND from now and next 5 seconds */
global.state = STATE_WAVEEND;
global.waveend_time = SDL_GetTicks();
/* kill all enemies */
for (i = 0; i < MAX_ENEMIES; i++)
{
stall_kill_enemy(i);
}
for (i = 0; i < BONUS_NUM; i++)
{
bonus[i].active = 0;
}
global.phase = 0;
}
/* creating enemies, switching phases, switch state to STATE_WAVEEND */
void wave_live()
{
static Uint32 prev_time = 0;
static Uint32 phase_duration, phase_enemyfreq, phase_starttime;
static Uint32 phase_start = 1; /* we have just switched to this phase */
Uint32 cur_time = SDL_GetTicks();
/* switch to STATE_WAVEEND or not */
if (cur_time - waves[global.wave].start_time > waves[global.wave].duration)
{
if (player_ship->alive)
{
wave_end();
return;
}
}
/* phase init - do it just once per phase */
if (phase_start)
{
phase_duration = waves[global.wave].phases[global.phase][0] * 1000;
phase_enemyfreq = waves[global.wave].phases[global.phase][1];
phase_starttime = cur_time;
phase_start = 0;
}
/* check - is it time to create enemy? */
if ((cur_time - prev_time) >= phase_enemyfreq)
{
stall_enemy_ship_creator();
prev_time = cur_time;
}
/* check - is it time to switch to another phase? */
if ((cur_time - phase_starttime) >= phase_duration)
{
/* additional check to avoid bug which can switch to phase6 */
if (global.phase < WAVE_PHASES - 1)
{
phase_start = 1;
global.phase++;
debug("phase: %u/%d. duration: %d sec, enemy freq: %d ms\n",
global.phase, WAVE_PHASES, waves[global.wave].phases[global.phase][0],
waves[global.wave].phases[global.phase][1]);
}
}
}
/* check every second - is it time to create new bonus */
void bonus_creator()
{
int i, rnd;
static Uint32 cur_time, prev_time = 0;
if (global.state != STATE_MAIN)
return;
/* is it time to create bonus? */
cur_time = SDL_GetTicks();
if ((cur_time - prev_time) >= 1000)
{
for (i = 0; i < BONUS_NUM; i++)
{
rnd = rand() % 100;
//debug("bonus_creator() rnd %d \n", rnd);
/* do not create bonus if we already have it on screen */
if (!bonus[i].active && rnd < bonus[i].chance[global.wave])
{
/* creating bonus! */
bonus[i].active = 1;
bonus[i].scr_lifetime = bonus[i].scr_duration;
bonus[i].crd.x1 = rand() % (GAME_WIDTH - BONUS_WIDTH);
bonus[i].crd.x2 = bonus[i].crd.x1 + BONUS_WIDTH;
bonus[i].crd.y1 = rand() % (GAME_HEIGHT - BONUS_HEIGHT);
bonus[i].crd.y2 = bonus[i].crd.y1 + BONUS_HEIGHT;
/*debug("bonus created! #%d ,x1 %d, y1 %d\n",
i,bonus[i].crd.x1, bonus[i].crd.y1);*/
}
}
prev_time = cur_time;
}
}
/* check every sec - is it time to decrease bonus display_time or stop bonus */
void bonus_disappear()
{
int i;
static Uint32 cur_time, prev_time = 0;
/* is it time to disappear/stop bonus? */
cur_time = SDL_GetTicks();
if ((cur_time - prev_time) >= 1000)
{
for (i = 0; i < BONUS_NUM; i++)
{
if (bonus[i].active)
{
if (bonus[i].scr_lifetime > 0)
{
bonus[i].scr_lifetime--;
/* debug("#%d : dec scr_lifetime %d \n",
i, bonus[i].scr_lifetime);*/
}
else
{
bonus[i].active = 0;
debug("bonus_disappear #%d \n", i);
}
}
if (bonus[i].on_player)
{
if (bonus[i].plr_lifetime > 0)
{
bonus[i].plr_lifetime--;
if (i == BONUS_DEF_SHIELD &&
bonus[i].plr_lifetime == BONUS_DEFSHIELD_BLINKING_TIME)
bonus_defshield.blinking = 1;
/* debug("#%d : dec plr_lifetime %d \n",
i, bonus[i].plr_lifetime); */
}
else
{
bonus[i].on_player = 0;
if (i == BONUS_RAM)
bonus_ram_stop();
else if (i == BONUS_ACCELERATION)
player_ship->speed = PLAYER_SPEED;
}
}
}
prev_time = cur_time;
}
}
void stall_bullets_move()
{
int i;
/* move player bullets */
for (i = 0; i < PLAYER_BULLETS; i++)
{
if (player_bullet[i].exist)
{
player_bullet[i].crd.y1 -= player_ship->bullet_speed;
player_bullet[i].crd.y2 -= player_ship->bullet_speed;
if (player_bullet[i].btype == BULLET_TYPE_RIGHT)
{
player_bullet[i].crd.x1 +=1;
player_bullet[i].crd.x2 +=1;
}
else if (player_bullet[i].btype == BULLET_TYPE_LEFT)
{
player_bullet[i].crd.x1 -=1;
player_bullet[i].crd.x2 -=1;
}
if (player_bullet[i].crd.y2 < 1 || player_bullet[i].crd.x1 < 1
|| player_bullet[i].crd.x2 > GAME_WIDTH )
{
player_bullet[i].exist = 0;
}
}
}
/* move enemy bullets and destroy them if out of field */
for (i = 0; i < ENEMY_BULLETS; i++)
{
if (enemy_bullet[i].exist)
{
int id = enemy_bullet[i].ship_id;
enemy_bullet[i].crd.y1 += enemy_ship[id].bullet_speed;
enemy_bullet[i].crd.y2 += enemy_ship[id].bullet_speed;
if (enemy_bullet[i].crd.y1 > GAME_HEIGHT)
{
enemy_bullet[i].exist = 0;
enemy_bullet[i].anim = 0;
enemy_bullet[i].time_anim = 0;
global.enemy_bullets--;
if (player_ship->alive)
stall_inc_score(BULLET_COST);
}
}
}
}
void stall_player_shot()
{
int i;
static int triple_shot_cnt = 0;
if (!player_ship->alive)
return;
for (i = 0; i < PLAYER_BULLETS; i++)
{
if (!player_bullet[i].exist)
{
player_bullet[i].crd.x1 = player_ship->crd.x1 + PLAYER_WIDTH/2;
player_bullet[i].crd.y1 = player_ship->crd.y1 - 1;
player_bullet[i].crd.x2 = player_bullet[i].crd.x1 + PLAYER_BULLET_WIDTH;
player_bullet[i].crd.y2 = player_bullet[i].crd.y1 + PLAYER_BULLET_HEIGHT;
player_bullet[i].btype = triple_shot_cnt;
player_bullet[i].exist = 1;
if (bonus[BONUS_TRIPLE_SHOT].on_player)
{
/* we already launched 3 bullets, so break */
if (triple_shot_cnt == 2)
{
triple_shot_cnt = 0;
break;
}
triple_shot_cnt++;
continue;
}
if (bonus[BONUS_AUTO_AIM_MISSILES].on_player)
{
player_bullet[i].btype = BULLET_TYPE_MISSILE;
bonus_aim_target(i);
}
break;
}
}
}
void stall_enemy_shot()
{
int i, j;
for (i = 0; i < MAX_ENEMIES; i++)
{
if (enemy_ship[i].alive)
{
int random = rand() % 200;
if (random == 77)
{
for (j = 0; j < ENEMY_BULLETS; j++)
{
if (!enemy_bullet[j].exist)
{
enemy_bullet[j].crd.x1 = enemy_ship[i].crd.x1 + waves[global.wave].enemy_width/2;
enemy_bullet[j].crd.y1 = enemy_ship[i].crd.y2 + 1;
enemy_bullet[j].crd.x2 = enemy_bullet[j].crd.x1 + ENEMY_BULLET_WIDTH;
enemy_bullet[j].crd.y2 = enemy_bullet[j].crd.y1 + ENEMY_BULLET_HEIGHT;
enemy_bullet[j].btype = BULLET_TYPE_CENTER;
enemy_bullet[j].exist = 1;
enemy_bullet[j].time_anim = SDL_GetTicks();
global.enemy_bullets++;
// debug("enemy bullet: %u\n",global.enemy_bullets);
break;
}
}
}
}
}
}
/* --- Math --- */
/* inc when enemy killed or dodge from bullet */
void stall_inc_score(unsigned int score)
{
//debug("inc_score() +%d \n", score);
global.score += score;
}
#if 0
/* returns: 1 if we have a collision, 0 if not.
x1, y1, x2, y2 */
int stall_check_collision_old ( int left1, int top1, int right1, int bottom1,
int left2, int top2, int right2, int bottom2 )
{
if (bottom1 < top2 || top1 > bottom2 || right1 < left2 || left1 > right2 )
return 0;
/* here we have collision */
//debug("l1 %d, t1 %d, r1 %d, b1 %d , l2 %d, t2 %d, r2 %d, b2 %d \n",
// left1, top1, right1, bottom1, left2, top2, right2, bottom2);
return 1;
}
#endif
/* returns: 1 if we have a collision, 0 if not */
int stall_check_collision (rect_t rect1, rect_t rect2)
{
if (rect1.y2 < rect2.y1 || rect1.y1 > rect2.y2 || rect1.x2 < rect2.x1 || rect1.x1 > rect2.x2)
return 0;
/* here we have collision */
return 1;
}
/* if player took bonus - `on player` enabled */
void bonus_check()
{
int i, j;
for (i = 0; i < BONUS_NUM; i++)
{
if (bonus[i].active)
{
if (player_ship->alive)
{
if (stall_check_collision(player_ship->crd, bonus[i].crd))
{
debug("bonus_check() : bonus was taken %d \n", i);
bonus[i].active = 0;
bonus[i].on_player = 1;
bonus[i].plr_lifetime = bonus[i].plr_duration;
if (i == BONUS_DEF_SHIELD)
bonus_defshield_create();
else if (i == BONUS_RANDOM_BOMB)
{
bonus_randombomb();
}
else if (i == BONUS_RAM)
{
bonus_ram_start();
}
else if (i == BONUS_ACCELERATION)
{
player_ship->speed = PLAYER_ACC_SPEED;
}
}
}
/* enemies can eat the bonus! */
for (j = 0; j < MAX_ENEMIES; j++)
{
if (enemy_ship[j].alive)
{
if (stall_check_collision(enemy_ship[j].crd, bonus[i].crd))
bonus[i].active = 0;
}
}
}
}
}
/* --- dead_part v2.0 functions --- */
/* creates 1 dead part when enemy gets killed
params:
@ ship_number - number of parent ship (to get coords),
@ part_number - number of part (from 1 to 4)
*/
void dead_part_create(int ship_number,int part_number)
{
int i;
for (i = 0; i < TOTAL_DEAD_PARTS; i++)
{
if (!dead_parts[i].alive)
{
// debug("dp create()ship %d, part_n %d ,num %d\n",ship_number, part_number, i);
dead_parts[i].alive = 1;
dead_parts[i].speed = waves[global.wave].enemy_speed;
switch (global.wave)
{
case 0:
{
if (part_number == 0) /* top */
{
/* set coords of new part based on parent ship coords */
dead_parts[i].crd.x1 = enemy_ship[ship_number].crd.x1;
dead_parts[i].crd.y1 = enemy_ship[ship_number].crd.y1;
dead_parts[i].crd.x2 = enemy_ship[ship_number].crd.x2;
dead_parts[i].crd.y2 = enemy_ship[ship_number].crd.y1 + waves[global.wave].enemy_height/2;
/* set part of the sprite for the current part */
dead_parts[i].pic.x = 0;
dead_parts[i].pic.y = 0;
dead_parts[i].pic.w = waves[global.wave].enemy_width;
dead_parts[i].pic.h = waves[global.wave].enemy_height/2;
/* set way to move */
dead_parts[i].way[0] = 0; //x
dead_parts[i].way[1] = -1; //y
}
else if (part_number == 1) /* bottom right */
{
/* set coords of new part based on parent ship coords */
dead_parts[i].crd.x1 = enemy_ship[ship_number].crd.x1 + waves[global.wave].enemy_width/2;
dead_parts[i].crd.y1 = enemy_ship[ship_number].crd.y1 + waves[global.wave].enemy_height/2;
dead_parts[i].crd.x2 = enemy_ship[ship_number].crd.x2;
dead_parts[i].crd.y2 = enemy_ship[ship_number].crd.y2;
/* set part of the sprite for the current part */
dead_parts[i].pic.x = waves[global.wave].enemy_width/2;
dead_parts[i].pic.y = waves[global.wave].enemy_height/2;
dead_parts[i].pic.w = waves[global.wave].enemy_width/2;
dead_parts[i].pic.h = waves[global.wave].enemy_height/2;
/* set way to move */
dead_parts[i].way[0] = 1; //x
dead_parts[i].way[1] = 0; //y
}
else if (part_number == 2)
{
/* set coords of new part based on parent ship coords */
dead_parts[i].crd.x1 = enemy_ship[ship_number].crd.x1;
dead_parts[i].crd.y1 = enemy_ship[ship_number].crd.y1 + waves[global.wave].enemy_height/2;
dead_parts[i].crd.x2 = enemy_ship[ship_number].crd.x1 + waves[global.wave].enemy_width/2;
dead_parts[i].crd.y2 = enemy_ship[ship_number].crd.y2;
/* set part of the sprite for the current part */
dead_parts[i].pic.x = 0;
dead_parts[i].pic.y = waves[global.wave].enemy_height/2;
dead_parts[i].pic.w = waves[global.wave].enemy_width/2;
dead_parts[i].pic.h = waves[global.wave].enemy_height/2;
/* set way to move */
dead_parts[i].way[0] = -1; //x
dead_parts[i].way[1] = 0; //y
}
break;
}
case 1:
{
if (part_number == 0) /* top left */
{
/* set coords of new part based on parent ship coords */
dead_parts[i].crd.x1 = enemy_ship[ship_number].crd.x1;
dead_parts[i].crd.y1 = enemy_ship[ship_number].crd.y1;
dead_parts[i].crd.x2 = dead_parts[i].crd.x1 + waves[global.wave].enemy_width/2;
dead_parts[i].crd.y2 = dead_parts[i].crd.y1 + waves[global.wave].enemy_height/2;
/* set part of the sprite for the current part */
dead_parts[i].pic.x = 0;
dead_parts[i].pic.y = 0;
dead_parts[i].pic.w = waves[global.wave].enemy_width/2;
dead_parts[i].pic.h = waves[global.wave].enemy_height/2;
/* set way to move */
dead_parts[i].way[0] = -1; //x
dead_parts[i].way[1] = -1; //y
}
else if (part_number == 1) /* top right */
{
/* set coords of new part based on parent ship coords */
dead_parts[i].crd.x1 = enemy_ship[ship_number].crd.x1 + waves[global.wave].enemy_width/2;
dead_parts[i].crd.y1 = enemy_ship[ship_number].crd.y1;
dead_parts[i].crd.x2 = enemy_ship[ship_number].crd.x2;
dead_parts[i].crd.y2 = enemy_ship[ship_number].crd.y1 + waves[global.wave].enemy_height/2;
/* set part of the sprite for the current part */
dead_parts[i].pic.x = waves[global.wave].enemy_width/2;
dead_parts[i].pic.y = 0;
dead_parts[i].pic.w = waves[global.wave].enemy_width/2;
dead_parts[i].pic.h = waves[global.wave].enemy_height/2;
/* set way to move */
dead_parts[i].way[0] = 1; //x
dead_parts[i].way[1] = -1; //y
}
else if (part_number == 2) /* bottom right */
{
/* set coords of new part based on parent ship coords */
dead_parts[i].crd.x1 = enemy_ship[ship_number].crd.x1 + waves[global.wave].enemy_width/2;
dead_parts[i].crd.y1 = enemy_ship[ship_number].crd.y1 + waves[global.wave].enemy_height/2;