Only allow selection of choice with a propensity

tahorst · tahorst · commit 41f664b27236 · 2021-12-18T19:34:51.000-05:00
diff --git a/arrow/obsidian.c b/arrow/obsidian.c
@@ -213,7 +213,7 @@ evolve_result evolve(Info *info, double duration, int64_t *state, double *rates)
       choice = 0;
       progress = 0.0;
 
-      while (progress + propensities[choice] < point) {
+      while (progress + propensities[choice] < point || propensities[choice] == 0) {
         progress += propensities[choice];
         choice += 1;
       }

Original file line number	Diff line number	Diff line change
`@@ -213,7 +213,7 @@ evolve_result evolve(Info info, double duration, int64_t state, double *rates)`
`213`	`213`	`choice = 0;`
`214`	`214`	`progress = 0.0;`
`215`	`215`
`216`		`- while (progress + propensities[choice] < point) {`
	`216`	`+ while (progress + propensities[choice] < point \|\| propensities[choice] == 0) {`
`217`	`217`	`progress += propensities[choice];`
`218`	`218`	`choice += 1;`
`219`	`219`	`}`