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#include "enemy.h"
extern double fps_factor;
typedef struct {
ENEMY_BASE b;
int state;
int tx;
int ty;
int delay;
int level;
} MINE_DATA;
void enemy_mine_add(int lv)
{
SPRITE *s;
MINE_DATA *data;
s=sprite_add_file("12side.bmp",19,PR_ENEMY);
s->type=SP_EN_MINE;
s->flags|=(SP_FLAG_VISIBLE|SP_FLAG_COLCHECK);
s->mover=enemy_mine_move;
s->anim_speed=1;
s->aktframe=0;
s->x=rand()%(WIDTH+10)-10;
s->y=-40;
data=mmalloc(sizeof(MINE_DATA));
s->data=data;
data->b.score=30;
data->b.health=5;
data->tx=rand()%270+50;
data->ty=rand()%300+50;
data->state=0;
data->level=lv;
}
void enemy_mine_move(SPRITE *s)
{
MINE_DATA *d=(MINE_DATA *)s->data;
double angle;
switch(d->state) {
case 0: /* move */
angle=atan2(d->ty-s->y,d->tx-s->x);
s->x+=cos(angle)*1.5*fps_factor;
s->y+=sin(angle)*1.5*fps_factor;
if((s->x >= d->tx-1) && (s->x <= d->tx+1) &&
(s->y >= d->ty-1) && (s->y <= d->ty+1)) {
d->state=1;
d->delay=50;
}
break;
case 1:
d->delay-=fps_factor;
if(d->delay<=0) {
d->state=2;
d->delay=30;
s->anim_speed=0;
}
break;
case 2:
d->delay-=fps_factor;
if(d->delay<=0) {
enemy_supermine_add(s,d->level);
s->type=-1;
}
break;
}
}
void enemy_supermine_add(SPRITE *c, int lv)
{
SPRITE *s;
MINE_DATA *data;
int i;
for(i=0;i<8;i++) {
s=sprite_add_file("12side.bmp",19,PR_ENEMY);
s->type=SP_EN_MINE;
s->flags|=(SP_FLAG_VISIBLE|SP_FLAG_COLCHECK);
s->mover=enemy_supermine_move;
s->anim_speed=2;
s->aktframe=0;
s->x=c->x;
s->y=c->y;
data=mmalloc(sizeof(MINE_DATA));
s->data=data;
data->b.score=10*(1+lv);
data->b.health=1+lv;
data->state=(360/8)*i;
data->level=lv;
}
}
void enemy_supermine_move(SPRITE *s)
{
MINE_DATA *d=(MINE_DATA *)s->data;
if(d->level)
if(rand()%(100-d->level*10)==0)
enemy_bullet_create(s,3+d->level);
s->x+=cos(degtorad(d->state))*3*fps_factor;
s->y+=sin(degtorad(d->state))*3*fps_factor;
if((s->x<0-s->w)||(s->x>WIDTH)||(s->y<0-s->h)||(s->y>HEIGHT))
s->type=-1;
}
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