foo
[dosdemo] / src / demo.c
index f25610a..a990d5f 100644 (file)
@@ -2,6 +2,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <math.h>
+#include <ctype.h>
 #include <errno.h>
 #include <limits.h>
 #include "demo.h"
 #include "music.h"
 #include "cfgopt.h"
 #include "tinyfps.h"
+#include "util.h"
 
-int fb_width = 320;
-int fb_height = 240;
+#define FB_WIDTH       320
+#define FB_HEIGHT      240
+
+int fb_width = FB_WIDTH;
+int fb_height = FB_HEIGHT;
 int fb_bpp = 16;
-uint16_t *fb_pixels, *vmem_back, *vmem_front;
+uint16_t *fb_pixels, *vmem;
 unsigned long time_msec;
 int mouse_x, mouse_y;
 unsigned int mouse_bmask;
@@ -22,6 +27,7 @@ unsigned int mouse_bmask;
 float sball_matrix[] = {1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1};
 
 static unsigned long nframes;
+static int console_active;
 
 int demo_init(int argc, char **argv)
 {
@@ -96,24 +102,196 @@ void demo_draw(void)
        scr_update();
        scr_draw();
 
+       draw_mouse_pointer(vmem);
+
        ++nframes;
 }
 
-void demo_keyboard(int key, int state)
+
+
+#define DEST(x, y)     dest[(y) * FB_WIDTH + (x)]
+void draw_mouse_pointer(uint16_t *fb)
+{
+       uint16_t *dest = fb + mouse_y * FB_WIDTH + mouse_x;
+       int ylines = FB_HEIGHT - mouse_y;
+
+       switch(ylines) {
+       default:
+       case 10:
+               DEST(0, 9) = 0xffff;
+       case 9:
+               DEST(0, 8) = 0xffff;
+               DEST(1, 8) = 0xffff;
+       case 8:
+               DEST(0, 7) = 0xffff;
+               DEST(2, 7) = 0xffff;
+               DEST(1, 7) = 0;
+       case 7:
+               DEST(6, 6) = 0xffff;
+               DEST(0, 6) = 0xffff;
+               DEST(3, 6) = 0xffff;
+               DEST(4, 6) = 0xffff;
+               DEST(5, 6) = 0xffff;
+               DEST(1, 6) = 0;
+               DEST(2, 6) = 0;
+       case 6:
+               DEST(5, 5) = 0xffff;
+               DEST(0, 5) = 0xffff;
+               DEST(1, 5) = 0;
+               DEST(2, 5) = 0;
+               DEST(3, 5) = 0;
+               DEST(4, 5) = 0;
+       case 5:
+               DEST(4, 4) = 0xffff;
+               DEST(0, 4) = 0xffff;
+               DEST(1, 4) = 0;
+               DEST(2, 4) = 0;
+               DEST(3, 4) = 0;
+       case 4:
+               DEST(3, 3) = 0xffff;
+               DEST(0, 3) = 0xffff;
+               DEST(1, 3) = 0;
+               DEST(2, 3) = 0;
+       case 3:
+               DEST(2, 2) = 0xffff;
+               DEST(0, 2) = 0xffff;
+               DEST(1, 2) = 0;
+       case 2:
+               DEST(1, 1) = 0xffff;
+               DEST(0, 1) = 0xffff;
+       case 1:
+               DEST(0, 0) = 0xffff;
+       }
+}
+
+static void change_screen(int idx)
 {
-       if(state) {
+       printf("change screen %d\n", idx);
+       scr_change(scr_screen(idx), 4000);
+}
+
+#define CBUF_SIZE      64
+#define CBUF_MASK      (CBUF_SIZE - 1)
+void demo_keyboard(int key, int press)
+{
+       static char cbuf[CBUF_SIZE];
+       static int rd, wr;
+       char inp[CBUF_SIZE + 1], *dptr;
+       int i, nscr;
+
+       if(press) {
                switch(key) {
                case 27:
                        demo_quit();
+                       return;
+
+               case 127:
+                       debug_break();
+                       return;
+
+               case '`':
+                       console_active = !console_active;
+                       if(console_active) {
+                               printf("> ");
+                               fflush(stdout);
+                       } else {
+                               putchar('\n');
+                       }
+                       return;
+
+               case '\b':
+                       if(console_active) {
+                               if(wr != rd) {
+                                       printf("\b \b");
+                                       fflush(stdout);
+                                       wr = (wr + CBUF_SIZE - 1) & CBUF_MASK;
+                               }
+                               return;
+                       }
+                       break;
+
+               case '\n':
+               case '\r':
+                       if(console_active) {
+                               dptr = inp;
+                               while(rd != wr) {
+                                       *dptr++ = cbuf[rd];
+                                       rd = (rd + 1) & CBUF_MASK;
+                               }
+                               *dptr = 0;
+                               if(inp[0]) {
+                                       printf("\ntrying to match: %s\n", inp);
+                                       nscr = scr_num_screens();
+                                       for(i=0; i<nscr; i++) {
+                                               if(strstr(scr_screen(i)->name, inp)) {
+                                                       change_screen(i);
+                                                       break;
+                                               }
+                                       }
+                               }
+                               console_active = 0;
+                               return;
+                       }
                        break;
 
                default:
-                       if(key >= '1' && key <= '1' + scr_num_screens()) {
-                               int idx = key - '1';
-                               printf("change screen %d\n", idx);
-                               scr_change(scr_screen(idx), 4000);
+                       if(key >= '1' && key <= '9' && key <= '1' + scr_num_screens()) {
+                               change_screen(key - '1');
+                       } else if(key == '0' && scr_num_screens() >= 10) {
+                               change_screen(9);
+                       }
+
+                       if(console_active) {
+                               if(key < 256 && isprint(key)) {
+                                       putchar(key);
+                                       fflush(stdout);
+
+                                       cbuf[wr] = key;
+                                       wr = (wr + 1) & CBUF_MASK;
+                                       if(wr == rd) { /* overflow */
+                                               rd = (rd + 1) & CBUF_MASK;
+                                       }
+                               }
+                               return;
                        }
                        break;
                }
+
+               scr_keypress(key);
+       }
+}
+
+
+void mouse_orbit_update(float *theta, float *phi, float *dist)
+{
+       static int prev_mx, prev_my;
+       static unsigned int prev_bmask;
+
+       if(mouse_bmask) {
+               if((mouse_bmask ^ prev_bmask) == 0) {
+                       int dx = mouse_x - prev_mx;
+                       int dy = mouse_y - prev_my;
+
+                       if(dx || dy) {
+                               if(mouse_bmask & MOUSE_BN_LEFT) {
+                                       float p = *phi;
+                                       *theta += dx * 1.0;
+                                       p += dy * 1.0;
+
+                                       if(p < -90) p = -90;
+                                       if(p > 90) p = 90;
+                                       *phi = p;
+                               }
+                               if(mouse_bmask & MOUSE_BN_RIGHT) {
+                                       *dist += dy * 0.5;
+
+                                       if(*dist < 0) *dist = 0;
+                               }
+                       }
+               }
        }
+
+       prev_mx = mouse_x;
+       prev_my = mouse_y;
+       prev_bmask = mouse_bmask;
 }