screen override

[andemo] / src / demosys.c

diff --git a/src/demosys.c b/src/demosys.c
index 12c7a15..06aa8c2 100644 (file)
--- a/src/demosys.c
+++ b/src/demosys.c
@@ -154,6 +154,18 @@ void dsys_update(void)
 
        dsys.tmsec = time_msec;
 
+       /* evaluate tracks */
+       for(i=0; i<dsys.num_tracks; i++) {
+               dsys.value[i] = anm_get_value(dsys.track + i, dsys.tmsec);
+       }
+
+       if(dsys.scr_override) {
+               scr = dsys.scr_override;
+               scr->vis = 1;
+               if(scr->update) scr->update(dsys.tmsec);
+               return;
+       }
+
        dsys.num_act = 0;
        for(i=0; i<dsys.num_screens; i++) {
                scr = dsys.screens[i];
@@ -189,17 +201,18 @@ void dsys_update(void)
                        }
                }
        }
-
-       /* evaluate tracks */
-       for(i=0; i<dsys.num_tracks; i++) {
-               dsys.value[i] = anm_get_value(dsys.track + i, dsys.tmsec);
-       }
 }
 
 /* TODO: do something about draw ordering of the active screens */
 void dsys_draw(void)
 {
        int i;
+
+       if(dsys.scr_override) {
+               dsys.scr_override->draw();
+               return;
+       }
+
        for(i=0; i<dsys.num_act; i++) {
                dsys.act[i]->draw();
        }
@@ -244,16 +257,22 @@ void dsys_run_screen(struct demoscreen *scr)
 {
        int i;
 
-       if(!scr) return;
-       if(dsys.num_act == 1 && dsys.act[0] == scr) return;
+       if(!scr) {
+               if(dsys.scr_override) {
+                       scr = dsys.scr_override;
+                       if(scr->stop) scr->stop();
+               }
+               dsys.scr_override = 0;
+               return;
+       }
 
        for(i=0; i<dsys.num_act; i++) {
                if(dsys.act[i]->stop) dsys.act[i]->stop();
                dsys.act[i]->active = 0;
        }
+       dsys.num_act = 0;
 
-       dsys.act[0] = scr;
-       dsys.num_act = 1;
+       dsys.scr_override = scr;
 
        if(scr->start) scr->start();
        scr->active = 1;