Directional facing movement

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

MeercaChase.cpp

@@ -1,5 +1,6 @@
 #define OLC_PGE_APPLICATION
 #include "pixelGameEngine.h"
+#include <math.h>
 
 using namespace std;
 
@@ -12,6 +13,7 @@ public:
 	float accumulatedTime = 0.0f;
 	int frameCount=0;
 	int moveSpd=4;
+	float meercaSpd[2] = {0,0};
 	float meercaPos[2] = {240,240};
 	MeercaChase()
 	{
@@ -34,13 +36,41 @@ public:
 		accumulatedTime+=fElapsedTime;
 		while (accumulatedTime>=UPDATE_RATE) {
 			accumulatedTime-=UPDATE_RATE;
+			meercaPos[0]+=meercaSpd[0];
+			meercaPos[1]+=meercaSpd[1];
 			updateGame();
 		}
 		if (GetKey(olc::F1).bPressed) {
 			ConsoleShow(olc::F1,false);
 		}
+		if (GetKey(olc::W).bPressed) {
+			meercaSpd[0]=0;
+			meercaSpd[1]=-moveSpd;
+		}
+		if (GetKey(olc::A).bPressed) {
+			meercaSpd[0]=-moveSpd;
+			meercaSpd[1]=0;
+		}
+		if (GetKey(olc::D).bPressed) {
+			meercaSpd[0]=moveSpd;
+			meercaSpd[1]=0;
+		}
+		if (GetKey(olc::S).bPressed) {
+			meercaSpd[0]=0;
+			meercaSpd[1]=moveSpd;
+		}
 		// called once per frame
-		DrawDecal({meercaPos[0]-16,meercaPos[1]-16},meerca);
+		if (meercaSpd[0]==moveSpd) {
+			DrawRotatedDecal({meercaPos[0]-16,meercaPos[1]-16},meerca,M_PI_2,{16,16});
+		} else
+		if (meercaSpd[0]==-moveSpd) {
+			DrawRotatedDecal({meercaPos[0]-16,meercaPos[1]-16},meerca,M_PI_2*3,{16,16});
+		} else
+		if (meercaSpd[1]==moveSpd) {
+			DrawRotatedDecal({meercaPos[0]-16,meercaPos[1]-16},meerca,M_PI,{16,16});
+		} else {
+			DrawRotatedDecal({meercaPos[0]-16,meercaPos[1]-16},meerca,0,{16,16});
+		}
 		DrawDecal({32,64},negg,{1,1},olc::YELLOW);
 		return true;
 	}