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battle: add spin intro

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This commit is contained in:
Vince Weaver 2018-06-30 13:44:51 -04:00
parent 26ccefa9d6
commit 8e5708fc29
1 changed files with 53 additions and 2 deletions
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55
gr-sim/tfv/tfv_battle.c
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@ -3,6 +3,8 @@
#include <unistd.h>
#include <string.h>
#include <math.h>
#include "gr-sim.h"
#include "tfv_utils.h"
#include "tfv_zp.h"
@ -325,6 +327,55 @@ static int draw_battle_bottom(int enemy_type) {
}
static int rotate_intro(void) {
int xx,yy,color,x2,y2;
double h,theta,dx,dy,theta2,thetadiff,nx,ny;
int i;
gr_copy(0x400,0xc00);
// gr_copy_to_current(0xc00);
// page_flip();
// gr_copy_to_current(0xc00);
// page_flip();
thetadiff=0;
for(i=0;i<8;i++) {
grsim_update();
for(yy=0;yy<40;yy++) {
for(xx=0;xx<40;xx++) {
dx=(xx-20);
dy=(yy-20);
h=sqrt((dx*dx)+(dy*dy));
theta=atan2(dy,dx);
theta2=theta+thetadiff;
nx=h*cos(theta2);
ny=h*sin(theta2);
x2=nx+20;
y2=ny+20;
if ((x2<0) || (x2>39)) color=0;
else if ((y2<0) || (y2>39)) color=0;
else color=scrn_page(x2,y2,PAGE2);
color_equals(color);
plot(xx,yy);
}
}
thetadiff-=(6.28/16.0);
page_flip();
usleep(100000);
}
return 0;
}
int do_battle(void) {
@ -343,6 +394,8 @@ int do_battle(void) {
// enemy_type=X
// random, with weight toward proper terrain
rotate_intro();
/* Setup Enemy HP */
enemy_hp=enemies[enemy_type].hp_base+
(rand()&enemies[enemy_type].hp_mask);
@ -419,5 +472,3 @@ int do_battle(void) {
return 0;
}