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gint/render: improve test, and add dpoly() example

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Lephenixnoir 2024-03-01 22:29:02 +00:00
parent 715b4b9335
commit d43b91db21
Signed by: Lephenixnoir
GPG Key ID: 1BBA026E13FC0495
1 changed files with 75 additions and 28 deletions
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103
src/gint/render.c
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@ -1,52 +1,99 @@
#define __BSD_VISIBLE 1
#include <gint/display.h>
#include <gint/keyboard.h>
#include <gint/defs/util.h>
#include <gintctl/util.h>
#include <math.h>
static void hexa_shape(int x, int y, int r, float alpha)
#ifdef FXCG50
static void poly2(void)
{
int xs[6], ys[6];
for(int i = 0; i < 6; i++) {
xs[i] = x + r * cosf(alpha + 1.57 + i * (2*M_PI/6));
ys[i] = y + r * sinf(alpha + 1.57 + i * (2*M_PI/6));
int x[] = { 0, 400, 400, 450, 0, 2, 223, 253, 274, 350, 121, 2 };
int y[] = { 200, 200, 250, 150, 200, 62, 236, 222, 236, 184, 2, 62 };
int N = sizeof(x) / sizeof(x[0]);
int x_min = x[0];
int y_min = y[0];
int x_max = 0;
int y_max = 0;
for(int k = 1; k < N; k++) {
x_min = min(x_min, x[k]);
x_max = max(x_max, x[k]);
y_min = min(y_min, y[k]);
y_max = max(y_max, y[k]);
}
for(int i = 0; i < 6; i++) {
int j = (i + 1) % 6;
dline(xs[i], ys[i], xs[j], ys[j], C_BLACK);
float fx = max(1, (float)(x_max - x_min)/320);
float fy = max(1, (float)(y_max - y_min)/222);
for(int k = 0; k < N; k++) {
x[k] = /* DWIDTH - w - 4 + */ ceil((x[k]-x_min)/fx);
y[k] = /* DHEIGHT - h - 4 + */ ceil((y[k]-y_min)/fy);
}
dline(xs[0], ys[0], xs[2], ys[2], C_BLACK);
dline(xs[2], ys[2], xs[5], ys[5], C_BLACK);
dline(xs[5], ys[5], xs[3], ys[3], C_BLACK);
dline(xs[3], ys[3], xs[1], ys[1], C_BLACK);
dline(xs[1], ys[1], xs[4], ys[4], C_BLACK);
dline(xs[4], ys[4], xs[0], ys[0], C_BLACK);
dpoly(x, y, N, C_RGB(15, 15, 31), C_NONE);
}
#endif
void gintctl_gint_render(void)
{
dclear(C_WHITE);
drect_border(1, 1, DWIDTH-2, DHEIGHT-2, C_NONE, 1, C_BLACK);
#ifdef FXCG50
drect_border(3, 3, DWIDTH-4, DHEIGHT-4, C_NONE, 1, C_BLACK);
#endif
int c1 = _(C_BLACK, C_RGB(24, 24, 24));
int c2 = _(C_BLACK, C_BLACK);
int c3 = _(C_NONE, C_RGB(24, 24, 24));
hexa_shape(DWIDTH/2, DHEIGHT/2, _(24, 72), 0.0);
int x1 = _(5,20);
int x2 = _(40,90);
int x3 = _(120,360);
int y1 = _(2,20);
int y2 = _(19,60);
int y3 = _(30,135);
int y4 = _(45,170);
int y5 = _(50,190);
for(int y = _(3,5); y < DHEIGHT - _(3,5); y++)
for(int x = _(3,5); x < DWIDTH - _(3,5); x++) {
if(dgetpixel(x-1, y) == C_BLACK
|| dgetpixel(x+1, y) == C_BLACK
|| dgetpixel(x, y-1) == C_BLACK
|| dgetpixel(x, y+1) == C_BLACK)
continue;
int xp = _(90,150);
int yp = _(25,100);
int rp = _(20,50);
if((x ^ y) & 1) dpixel(x, y, C_BLACK);
drect(x1, y1, x2, y2, c1);
drect_border(x1, y3, x2, y4, c3, 2, c2);
dvline(x3, c1);
dvline(x3+2, c1);
dvline(x3+4, c1);
dhline(y5, c2);
dhline(y5+2, c2);
dhline(y5+4, c2);
int px[7], py[7];
for(int i = 0; i < 7; i++)
{
float a = 2 * M_PI * i / 7;
px[i] = xp + rp * cosf(a);
py[i] = yp + rp * sinf(a);
}
dupdate();
for(int i = 0; i < 7; i++)
dline(px[i], py[i], px[(i+2) % 7], py[(i+2) % 7], C_BLACK);
#ifdef FXCG50
int xp2 = xp + rp + 20;
int yp2 = yp - 80;
int polyX[7] = { 0, 10, 40, 50, 60, 30, 20 };
int polyY[7] = { 0, 40, 5, 35, 10, 40, 0 };
for(int i = 0; i < 7; i++)
{
polyX[i] = xp2 + 2 * polyX[i];
polyY[i] = yp2 + 2 * polyY[i];
}
dpoly(polyX, polyY, 7, C_RGB(31, 15, 15), C_BLACK);
poly2();
#endif
dupdate();
while(getkey().key != KEY_EXIT) {}
}