more rope API hooray

src/Silkworm.c

@@ -1401,16 +1401,94 @@ double Silkworm_RopeNearestY(double ropeId, double xPosition, double yPosition)
 	return nearestY;
 }
 
+double Silkworm_RopeNodeCount(double ropeId)
+{
+	Silkworm_Rope* rope = LookupRope(ropeId);
+
+	if (rope != NULL)
+	{
+		return rope->nodeCount;
+	}
+
+	return -1;
+}
+
+double Silkworm_RopeNodeXPosition(double ropeId, double nodeIndex)
+{
+	Silkworm_Rope *rope = LookupRope(ropeId);
+
+	if (rope != NULL && nodeIndex < rope->nodeCount)
+	{
+		return rope->nodes[(uint32_t)nodeIndex]->position.x;
+	}
+
+	return -99999999999;
+}
+
+double Silkworm_RopeNodeYPosition(double ropeId, double nodeIndex)
+{
+	Silkworm_Rope* rope = LookupRope(ropeId);
+
+	if (rope != NULL && nodeIndex < rope->nodeCount)
+	{
+		return rope->nodes[(uint32_t)nodeIndex]->position.y;
+	}
+
+	return -99999999999;
+}
+
+double Silkworm_RopeNodeXSpeed(double ropeId, double nodeIndex)
+{
+	Silkworm_Rope* rope = LookupRope(ropeId);
+
+	if (rope != NULL && nodeIndex < rope->nodeCount)
+	{
+		return rope->nodes[(uint32_t)nodeIndex]->velocity.x;
+	}
+
+	return 0;
+}
+
+double Silkworm_RopeNodeYSpeed(double ropeId, double nodeIndex)
+{
+	Silkworm_Rope* rope = LookupRope(ropeId);
+
+	if (rope != NULL && nodeIndex < rope->nodeCount)
+	{
+		return rope->nodes[(uint32_t)nodeIndex]->velocity.y;
+	}
+
+	return 0;
+}
+
 void Silkworm_UnpinRope(double ropeId)
 {
 	Silkworm_Rope* rope = LookupRope(ropeId);
 
+	if (rope != NULL)
+	{
 		Silkworm_Node* node = rope->nodes[0];
 
 		if (node != NULL)
 		{
 			node->pinned = false;
 		}
+	}
+}
+
+void Silkworm_DeleteEndNode(double ropeId)
+{
+	Silkworm_Rope *rope = LookupRope(ropeId);
+
+	if (rope != NULL && rope->nodeCount > 0)
+	{
+		Silkworm_Node* node = rope->nodes[rope->nodeCount - 1];
+		if (node != NULL)
+		{
+			Silkworm_DestroyNode(node->id);
+			rope->nodeCount -= 1;
+		}
+	}
 }
 
 double Silkworm_RopeCreate(double xPosition, double yPosition, double mass, double friction, double windFactor, double pushFactor, double tearThreshold)
@@ -1954,7 +2032,7 @@ double Silkworm_DestroyClothInRadius(double x, double y, double radius)
 {
 	/* TODO: spatial hash implementation */
 
-	uint32_t i, j;
+	uint32_t i;
 	int32_t clothId = -1;
 
 	for (i = 0; i < context->nodeCount; i += 1)

src/Silkworm.h

@@ -84,7 +84,13 @@ SILKWORMAPI double Silkworm_RopeAddNode(double ropeId, double xPosition, double
 SILKWORMAPI double Silkworm_RopeVerticalLength(double ropeId);
 SILKWORMAPI double Silkworm_RopeNearestX(double ropeId, double xPosition, double yPosition);
 SILKWORMAPI double Silkworm_RopeNearestY(double ropeId, double xPosition, double yPosition);
+SILKWORMAPI double Silkworm_RopeNodeCount(double ropeId);
+SILKWORMAPI double Silkworm_RopeNodeXPosition(double ropeId, double nodeIndex);
+SILKWORMAPI double Silkworm_RopeNodeYPosition(double ropeId, double nodeIndex);
+SILKWORMAPI double Silkworm_RopeNodeXSpeed(double ropeId, double nodeIndex);
+SILKWORMAPI double Silkworm_RopeNodeYSpeed(double ropeId, double nodeIndex);
 SILKWORMAPI void Silkworm_UnpinRope(double ropeId);
+SILKWORMAPI void Silkworm_DeleteEndNode(double ropeId);
 SILKWORMAPI void Silkworm_RopeDestroy(double ropeId);
 SILKWORMAPI double Silkworm_RopeRequiredBufferSize(double ropeId);
 SILKWORMAPI double Silkworm_RopeFillBuffer(double ropeId, double width, double leftUV, double widthUV, double topUV, double heightUV);