Setup encounter detection

Co-authored-by: sigonasr2 <sigonasr2@gmail.com>

main.cpp

@@ -267,6 +267,7 @@ class Entity{
 		int damageReduction=0; //A percentage of how much damage to reduce.
 		bool smart=false;
 		bool dumb=false;
+		int atb=0; //When this value reaches 1000, it's this entity's turn.
 		Object* obj;
 		std::vector<Battle::Move*> moveSet;
 		//Used for initializing players.
@@ -299,6 +300,18 @@ class Encounter{
 		int id;
 		Encounter(int id,vd2d pos,std::array<vd2d,4> playerPos,std::vector<Entity*>objs,int chance=25)
 		:id(id),pos(pos),objs(objs),chance(chance),playerPos(playerPos){}
+		bool IsEncounterAlive() {
+			for (int i=0;i<objs.size();i++) {
+				if (objs[i]->HP>0) {
+					return true;
+				}
+			}
+			return false;
+		}
+		bool IsInRange(vd2d pos) {
+			vd2d diff=pos-this->pos;
+			return diff.x>=0&&diff.x<=WIDTH&&diff.y>=0&&diff.y<=HEIGHT;
+		}
 };
 
 
@@ -369,6 +382,8 @@ public:
 	int ENCOUNTER_OFFSET = 0;
 	std::vector<Encounter*>ENCOUNTER_LIST;
 	Encounter*EDITING_ENCOUNTER=nullptr;
+	Encounter*BATTLE_ENCOUNTER=nullptr;
+	int BATTLE_STATE=BattleState::MOVE_CAMERA;
 	
 
 	bool MOUSE_PRESSED_DOWN=false,MOUSE_DOWN=false,MOUSE_RELEASED=false; //TODO Implement Mouse things.
@@ -644,24 +659,42 @@ goes on a very long time, I hope you can understand this is only for testing pur
 			}break;
 			case GameState::GAME_WORLD:{
 				if (PlayerCanMove()) {
+					bool moved=false;
 					if (UpHeld()) {
 						if (PARTY_MEMBER_OBJ[0]->SmoothMove({0,-1})) {
 							UpdatePlayerTrail({0,-1});
+							moved=true;
 						}
 					}
 					if (DownHeld()) {
 						if (PARTY_MEMBER_OBJ[0]->SmoothMove({0,1})) {
 							UpdatePlayerTrail({0,1});
+							moved=true;
 						}
 					}
 					if (LeftHeld()) {
 						if (PARTY_MEMBER_OBJ[0]->SmoothMove({-1,0})) {
 							UpdatePlayerTrail({-1,0});
+							moved=true;
 						}
 					}
 					if (RightHeld()) {
 						if (PARTY_MEMBER_OBJ[0]->SmoothMove({1,0})) {
 							UpdatePlayerTrail({1,0});
+							moved=true;
+						}
+					}
+					if (moved) {
+						vi2d cameraOffset={WIDTH/2,HEIGHT/2};
+						cameraPos=PARTY_MEMBER_OBJ[0]->GetPos()-cameraOffset;
+					}
+					if (moved&&BATTLE_ENCOUNTER==nullptr) {
+						for (int i=0;i<CURRENT_MAP->encounters.size();i++) {
+							if (CURRENT_MAP->encounters[i]->IsEncounterAlive()&&CURRENT_MAP->encounters[i]->IsInRange(PARTY_MEMBER_OBJ[0]->GetPos())) {
+								BATTLE_STATE=BattleState::MOVE_CAMERA;
+								BATTLE_ENCOUNTER=CURRENT_MAP->encounters[i];
+								break;
+							}
 						}
 					}
 				}
@@ -1716,7 +1749,7 @@ goes on a very long time, I hope you can understand this is only for testing pur
 	}
 
 	bool PlayerCanMove(){
-		return !IsTextEntryEnabled()&&!messageBoxVisible&&PARTY_MEMBER_OBJ[0]!=nullptr;
+		return BATTLE_ENCOUNTER==nullptr&&!IsTextEntryEnabled()&&!messageBoxVisible&&PARTY_MEMBER_OBJ[0]!=nullptr;
 	}
 
 	void DisplayMessageBox(std::string targetText) {

states.h

@@ -6,4 +6,13 @@ namespace GameState{
         ENCOUNTER_SELECT,
         GAME_WORLD,
     };
+}
+
+namespace BattleState{
+    enum{
+        MOVE_CAMERA,
+        WAIT,
+        WAIT_ANIMATION,
+        SELECT_ACTION,
+    };
 }