add more parameters to ClosestPos creator

extension.cpp

@@ -207,6 +207,9 @@ void ClosestPos::SDK_OnUnload()
 	g_pHandleSys->RemoveType(g_ClosestPosType, myself->GetIdentity());
 }
 
+#define asdfMIN(a,b) (((a)<(b))?(a):(b))
+#define asdfMAX(a,b) (((a)>(b))?(a):(b))
+
 static cell_t sm_CreateClosestPos(IPluginContext *pContext, const cell_t *params)
 {
 	ICellArray *pArray;
@@ -228,12 +231,34 @@ static cell_t sm_CreateClosestPos(IPluginContext *pContext, const cell_t *params
 		return pContext->ThrowNativeError("Invalid ArrayList Handle %x (error %d)", arraylist, err);
 	}
 
+	auto size = pArray->size();
+	cell_t startidx = 0;
+	cell_t count = size;
+
+	if (params[0] > 2)
+	{
+		startidx = params[3];
+		count = params[4];
+
+		if (startidx < 0 || startidx > (size-1))
+		{
+			return pContext->ThrowNativeError("startidx (%d) must be >=0 and less than the ArrayList size (%d)", startidx, size);
+		}
+
+		if (count < 1)
+		{
+			return pContext->ThrowNativeError("count must be 1 or greater (given %d)", count);
+		}
+
+		count = asdfMIN(count, size-startidx);
+	}
+
 	KDTreeContainer *container = new KDTreeContainer();
-	container->cloud.pts.resize(pArray->size());
+	container->cloud.pts.resize(count);
 
-	for (size_t i = 0; i < pArray->size(); i++)
+	for (size_t i = 0; i < count; i++)
 	{
-		cell_t *blk = pArray->at(i);
+		cell_t *blk = pArray->at(startidx+i);
 		container->cloud.pts[i].x = sp_ctof(blk[offset+0]);
 		container->cloud.pts[i].y = sp_ctof(blk[offset+1]);
 		container->cloud.pts[i].z = sp_ctof(blk[offset+2]);

include/closestpos.inc

@@ -5,7 +5,7 @@
 #define _closestpos_included
 
 methodmap ClosestPos < Handle {
-	public native ClosestPos(ArrayList input, int offset=0);
+	public native ClosestPos(ArrayList input, int offset=0, int startidx=0, int count=2147483646);
 	public native int Find(float pos[3]);
 };
 

smsdk_config.h

@@ -40,7 +40,7 @@
 /* Basic information exposed publicly */
 #define SMEXT_CONF_NAME			"ClosestPos"
 #define SMEXT_CONF_DESCRIPTION	"Provides a type that can be used to quickly find the closest point to the input position."
-#define SMEXT_CONF_VERSION		"1.0.0.0"
+#define SMEXT_CONF_VERSION		"1.1.0.0"
 #define SMEXT_CONF_AUTHOR		"rtldg"
 #define SMEXT_CONF_URL			"https://github.com/rtldg/sm_closestpos"
 #define SMEXT_CONF_LOGTAG		"CLOSESTPOS"