ReC98/th02/maine_05.cpp

80 lines
1.7 KiB
C++

/* ReC98
* -----
* Code segment #5 of TH02's MAINE.EXE
*/
#include "platform.h"
#include "x86real.h"
#include "pc98.h"
#include "planar.h"
#include "master.hpp"
#include "th01/math/polar.hpp"
#include "th02/v_colors.hpp"
#include "th02/math/vector.hpp"
extern "C" {
#include "th02/hardware/frmdelay.h"
}
void pascal near rotrect_draw(int rad, unsigned char angle)
{
screen_x_t x[4];
screen_y_t y[4];
int i;
for(i = 0; i < 4; i++) {
x[i] = polar_x_fast(192, rad, angle);
y[i] = polar_y_fast(200, rad, angle);
if(i & 1) {
angle += 0x51;
} else {
angle += 0x2F;
}
}
grcg_line(x[0], y[0], x[1], y[1]);
grcg_line(x[1], y[1], x[2], y[2]);
grcg_line(x[2], y[2], x[3], y[3]);
grcg_line(x[3], y[3], x[0], y[0]);
}
#define graph_accesspage_func graph_accesspage
#include "th01/hardware/egcrect.cpp"
void pascal rotrect_animate(char rot_speed, char start_angle)
{
int rads[] = {256, 256, 256, 256, 256};
char angles[] = {0x29, 0x29, 0x29, 0x29, 0x29};
int i, j;
for(i = 0; i < 5; i++) {
angles[i] = start_angle;
}
grcg_setcolor(GC_RMW, 0);
grcg_boxfill(0, 0, 384, 399);
for(i = 0; i < 20; i++) {
grcg_setcolor(GC_RMW, 0);
rotrect_draw(rads[0], angles[0]);
angles[0] = angles[1];
rads[0] = rads[1];
grcg_setcolor(GC_RMW, 4);
for(j = 1; j < 4; j++) {
rotrect_draw(rads[j], angles[j]);
angles[j] = angles[j+1];
rads[j] = rads[j+1];
}
grcg_setcolor(GC_RMW, V_WHITE);
if(i < 16) {
rads[4] -= 4;
angles[4] += rot_speed;
}
rotrect_draw(rads[4], angles[4]);
frame_delay(1);
}
grcg_setcolor(GC_RMW, 0);
grcg_boxfill(0, 0, 384, 399);
grcg_setcolor(GC_RMW, V_WHITE);
grcg_line(356, 96, 356, 304);
grcg_line(356, 304, 28, 304);
grcg_line( 28, 304, 28, 96);
grcg_line( 28, 96, 356, 96);
grcg_off();
palette_white();
}