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45 lines
945 B
C++
45 lines
945 B
C++
#include <dos.h>
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#include "common.h"
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#include "cga.h"
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#include "script.h"
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#include "resdata.h"
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void AnimateGauss(unsigned char *target) {
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unsigned char *sprite;
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unsigned char phase = Rand() % 4;
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if (phase == script_byte_vars.gauss_phase)
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phase = (phase + 1) % 4;
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script_byte_vars.gauss_phase = phase;
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sprite = gauss_data + 8 + phase * (8 * 30);
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CGA_Blit(sprite, 8, 8, 30, target, 80); /*draw to 0:4*/
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}
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void interrupt(*old_timer_isr)();
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void interrupt TimerIsr() {
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disable();
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script_byte_vars.timer_ticks++;
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if (!script_byte_vars.game_paused) {
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if (script_byte_vars.timer_ticks % 16 == 0) {
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script_word_vars.timer_ticks2 = Swap16(Swap16(script_word_vars.timer_ticks2) + 1);
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#if 1
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AnimateGauss(frontbuffer);
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#endif
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}
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}
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enable();
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}
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void InitTimer(void) {
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disable();
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old_timer_isr = getvect(0x1C);
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setvect(0x1C, TimerIsr);
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enable();
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}
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void UninitTimer(void) {
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disable();
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setvect(0x1C, old_timer_isr);
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enable();
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}
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