2 new timeoffset buttons in the animation panel "Ofs" and "Rand"

Useful when animating many objects falling at different times (for instance).

source/blender/include/BDR_editobject.h

@@ -111,6 +111,8 @@ void set_ob_ipoflags(void);
 void select_select_keys(void);
 int vergbaseco(const void *a1, const void *a2);
 void auto_timeoffs(void);
+void ofs_timeoffs(void);
+void rand_timeoffs(void);
 void texspace_edit(void);
 void flip_subdivison(int);
 void mirrormenu(void);

source/blender/include/butspace.h

@@ -725,7 +725,7 @@ enum {
 
 #define B_EFFECTSBUTS		3500
 
-#define B_AUTOTIMEOFS		3403
+#define B_AUTOTIMEOFS		3403 /* see B_OFSTIMEOFS, B_RANDTIMEOFS also */
 #define B_FRAMEMAP		3404
 #define B_NEWEFFECT		3405
 #define B_PREVEFFECT		3406
@@ -760,6 +760,8 @@ enum {
 #define B_PART_EDITABLE		3435
 #define B_PART_REKEY		3436
 #define B_PART_ENABLE		3437
+#define B_OFSTIMEOFS		3438 /* see B_AUTOTIMEOFS too */
+#define B_RANDTIMEOFS		3439
 
 #define B_MODIFIER_BUTS		3600
 

source/blender/makesdna/DNA_object_types.h

@@ -119,7 +119,7 @@ typedef struct Object {
 	
 	int dupon, dupoff, dupsta, dupend;
 
-	float sf, ctime;
+	float sf, ctime; /* sf is time-offset, ctime is the objects current time */
 	
 	/* during realtime */
 

source/blender/src/buttons_object.c

@@ -2500,9 +2500,11 @@ static void object_panel_anim(Object *ob)
 	uiDefButBitS(block, TOG, OB_OFFS_PARTICLE, REDRAWALL, "Offs Particle",		140,35,103,20, &ob->ipoflag, 0, 0, 0, 0, "Let the timeoffset work on the particle effect");
 	
 	uiBlockBeginAlign(block);
-	uiDefButF(block, NUM, REDRAWALL, "TimeOffset:",			24,10,115,20, &ob->sf, -MAXFRAMEF, MAXFRAMEF, 100, 0, "Specify an offset in frames");
-	uiDefBut(block, BUT, B_AUTOTIMEOFS, "Automatic Time",	139,10,104,20, 0, 0, 0, 0, 0, "Generate automatic timeoffset values for all selected frames");
-	uiDefBut(block, BUT, B_PRINTSPEED,	"PrSpeed",			248,10,67,20, 0, 0, 0, 0, 0, "Print objectspeed");
+	uiDefButF(block, NUM, REDRAWALL, "TimeOffset:",			24,10,115,20, &ob->sf, -MAXFRAMEF, MAXFRAMEF, 100, 0, "Animation offset in frames for ipo's and dupligroup instances");
+	uiDefBut(block, BUT, B_AUTOTIMEOFS, "Auto",	139,10,34,20, 0, 0, 0, 0, 0, "Assign selected objects a timeoffset within a range, starting from the active object");
+	uiDefBut(block, BUT, B_OFSTIMEOFS, "Ofs",	173,10,34,20, 0, 0, 0, 0, 0, "Offset selected objects timeoffset");
+	uiDefBut(block, BUT, B_RANDTIMEOFS, "Rand",	207,10,34,20, 0, 0, 0, 0, 0, "Randomize selected objects timeoffset");
+	uiDefBut(block, BUT, B_PRINTSPEED,	"PrSpeed",			250,10,65,20, 0, 0, 0, 0, 0, "Print objectspeed");
 	uiBlockEndAlign(block);
 	
 	sprintf(str, "%.4f", prspeed);
@@ -2647,6 +2649,12 @@ void do_effects_panels(unsigned short event)
     case B_AUTOTIMEOFS:
 		auto_timeoffs();
 		break;
+    case B_OFSTIMEOFS:
+		ofs_timeoffs();
+		break;
+    case B_RANDTIMEOFS:
+		rand_timeoffs();
+		break;
 	case B_FRAMEMAP:
 		G.scene->r.framelen= G.scene->r.framapto;
 		G.scene->r.framelen/= G.scene->r.images;

source/blender/src/editobject.c

@@ -92,6 +92,7 @@
 #include "BLI_arithb.h"
 #include "BLI_editVert.h"
 #include "BLI_ghash.h"
+#include "BLI_rand.h"
 
 #include "BKE_action.h"
 #include "BKE_anim.h"
@@ -5462,6 +5463,57 @@ void auto_timeoffs(void)
 	allqueue(REDRAWBUTSOBJECT, 0);
 }
 
+void ofs_timeoffs(void)
+{
+	Base *base;
+	float offset=0.0f;
+
+	if(BASACT==0 || G.vd==NULL) return;
+	
+	if(fbutton(&offset, -10000.0f, 10000.0f, 10, 10, "Offset")==0) return;
+
+	/* make array of all bases, xco yco (screen) */
+	base= FIRSTBASE;
+	while(base) {
+		if(TESTBASELIB(base)) {
+			base->object->sf += offset;
+			if (base->object->sf < -MAXFRAMEF)		base->object->sf = -MAXFRAMEF;
+			else if (base->object->sf > MAXFRAMEF)	base->object->sf = MAXFRAMEF;
+		}
+		base= base->next;
+	}
+
+	allqueue(REDRAWVIEW3D, 0);
+	allqueue(REDRAWBUTSOBJECT, 0);
+}
+
+
+void rand_timeoffs(void)
+{
+	Base *base;
+	float rand=0.0f;
+
+	if(BASACT==0 || G.vd==NULL) return;
+	
+	if(fbutton(&rand, 0.0f, 10000.0f, 10, 10, "Randomize")==0) return;
+	
+	rand *= 2;
+	
+	base= FIRSTBASE;
+	while(base) {
+		if(TESTBASELIB(base)) {
+			base->object->sf += (BLI_drand()-0.5) * rand;
+			if (base->object->sf < -MAXFRAMEF)		base->object->sf = -MAXFRAMEF;
+			else if (base->object->sf > MAXFRAMEF)	base->object->sf = MAXFRAMEF;
+		}
+		base= base->next;
+	}
+
+	allqueue(REDRAWVIEW3D, 0);
+	allqueue(REDRAWBUTSOBJECT, 0);
+}
+
+
 void texspace_edit(void)
 {
 	Base *base;

source/blender/src/view.c

@@ -69,6 +69,7 @@
 #include "BKE_sculpt.h"
 #include "BKE_utildefines.h"
 
+#include "BIF_transform.h"
 #include "BIF_editparticle.h"
 #include "BIF_gl.h"
 #include "BIF_previewrender.h"