I decided not to consider npc blocking condition

Author: trantorLiu

AIControl.cpp

@@ -1,5 +1,5 @@
 #include "AIControl.h"
-
+#include "ActorStateMachine.h"
 using namespace std;
 extern char debug[1024];
 
@@ -27,7 +27,7 @@ void AIControl::PlayAction(int skip){
 		npcStateMachineList[i]->PlayAction(skip);
 	}
 }
-float AIControl::distanceBetweenLyubu() {
+void AIControl::moveTowardLyubu() {
 	for (int i = 0;i< this->npcStateMachineList.size(); i++){
 		int npcId = npcStateMachineList[i]->character;
 
@@ -47,9 +47,40 @@ float AIControl::distanceBetweenLyubu() {
 			+ (npcPos[0] - lyubuPos[0])	* (npcPos[0] - lyubuPos[0]) 
 			+ (npcPos[0] - lyubuPos[0]) * (npcPos[0] - lyubuPos[0]));
 
-		sprintf(debug, "%s distance = %f\n",debug,distance);
-		
-		return distance;
+		//sprintf(debug, "%s distance = %f\n",debug,distance);
+
+		if (distance > ATTACK_DISTANCE && distance < KEEP_TRACK_DISTANCE) {
+			//turn toward lyubu
+			float newFDir[3], normalize;
+			newFDir[0] = lyubuPos[0] - npcPos[0];
+			newFDir[1] = lyubuPos[1] - npcPos[1];
+			newFDir[2] = lyubuPos[2] - npcPos[2];
+			normalize = sqrt(newFDir[0] * newFDir[0] + newFDir[1] * newFDir[1] + newFDir[2] * newFDir[2]);
+			newFDir[0] /= normalize;
+			newFDir[1] /= normalize;
+			newFDir[2] /= normalize;
 
+			float npcFDir[3], npcUDir[3];
+			npc.GetWorldDirection(npcFDir, npcUDir);
+			npc.SetWorldDirection(newFDir, npcUDir);
+
+			//move forward
+			int block = npc.MoveForward(MOVE_DISTANCE,TRUE, FALSE, 0.0, TRUE);
+			if (block) {
+				//sprintf(debug, "%s npc is blocked\n",debug);
+				while (npc.MoveForward(MOVE_DISTANCE,TRUE, FALSE, 0.0, TRUE)) {
+					sprintf(debug, "%s npc turn right\n",debug);
+					npc.TurnRight(300);
+					npc.MoveForward(MOVE_DISTANCE,TRUE, FALSE, 0.0, TRUE);
+				}
+			}
+			npcStateMachineList[i]->ChangeState(STATERUN, FALSE);
+		}
+		else if (distance <= ATTACK_DISTANCE) {
+			npcStateMachineList[i]->AppendAttackCode(NORMAL_ATT);
+		}
+		else {
+			npcStateMachineList[i]->ChangeState(STATEIDLE, TRUE);
+		}
 	}
-}
+}

AIControl.h

@@ -3,6 +3,11 @@
 #include "ActorStateMachine.h"
 #include <vector>
 
+#define MOVE_DISTANCE 5
+#define KEEP_TRACK_DISTANCE 1500
+#define ATTACK_DISTANCE 50
+
+
 //class AIControl :
 	//public GameControl
 class AIControl
@@ -14,7 +19,7 @@ class AIControl
 	virtual ~AIControl(void);
 	int AddNPC(ACTORid ncp, char * ActionFilename);
 	void PlayAction(int skip);
-	float distanceBetweenLyubu();
+	void moveTowardLyubu();
 private:
 	int lyubuId;
 };

BattleRoom.cpp

@@ -31,7 +31,7 @@ void BattleRoom::RefreshArena(){
 	for (int i =0;i< this->npcStateMachineList.size();i++){
 		npc.Object(this->npcStateMachineList[i]->character);
 		npc.GetWorldPosition(npcPos);
-		this->npcStateMachineList[i]->AppendAttackCode(NORMAL_ATT);
+		//this->npcStateMachineList[i]->AppendAttackCode(NORMAL_ATT);
 
 		if (this->CheckDistanceAndState(playerPos, npcPos, 
 				this->playerStateMachine->state, this->npcStateMachineList[i]->state ) == TRUE){

Main.cpp

@@ -447,7 +447,7 @@ void GameAI(int skip)
 	kc->Command();
 	bRoom->RefreshArena();
 	kc->CamPointToActor();
-	npc->distanceBetweenLyubu();
+	npc->moveTowardLyubu();
 
 }