[Bf-blender-cvs] [5dd5c88] particles_refactor: Initialize the "id" attribute when adding particles to the state.

[Lukas Tönne]

Commit: 5dd5c883fa17504a659fb79312489bc84bd472df
Author: Lukas Tönne
Date:   Tue Dec 17 15:34:07 2013 +0100
https://developer.blender.org/rB5dd5c883fa17504a659fb79312489bc84bd472df

Initialize the "id" attribute when adding particles to the state.

===================================================================

M	source/blender/blenkernel/intern/nparticle.c

===================================================================

diff --git a/source/blender/blenkernel/intern/nparticle.c b/source/blender/blenkernel/intern/nparticle.c
index a5b1785..df5fe85 100644
--- a/source/blender/blenkernel/intern/nparticle.c
+++ b/source/blender/blenkernel/intern/nparticle.c
@@ -330,6 +330,11 @@ bool BKE_nparticle_exists(NParticleState *state, NParticleID id)
 	return BKE_nparticle_find_index(state, id) >= 0;
 }
 
+static bool nparticle_attribute_is_id(NParticleAttributeDescription *desc)
+{
+	return STREQ(desc->name, "id");
+}
+
 int BKE_nparticle_add(NParticleState *state, NParticleID id)
 {
 	int index = BKE_nparticle_find_index(state, id);
@@ -339,8 +344,13 @@ int BKE_nparticle_add(NParticleState *state, NParticleID id)
 			BLI_pbuf_add_elements(&attrstate->data, 1);
 			index = attrstate->data.totelem - 1;
 			
-			/* XXX default value? */
-			memset(BLI_pbuf_get(&attrstate->data, index), 0, attrstate->data.elem_bytes);
+			if (nparticle_attribute_is_id(&attrstate->desc)) {
+				*(int*)BLI_pbuf_get(&attrstate->data, index) = (int)id;
+			}
+			else {
+				/* XXX default value? */
+				memset(BLI_pbuf_get(&attrstate->data, index), 0, attrstate->data.elem_bytes);
+			}
 		}
 	}