Flying controls

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

main.cpp

@@ -138,6 +138,7 @@ private:
 
 	float fTheta=0;
 	float fYaw=0;
+	float pitch=-M_PI/6;
 
 	vec3d 
 	Matrix_MultiplyVector(mat4x4 &m, vec3d &i)
@@ -471,16 +472,10 @@ public:
 	bool OnUserUpdate(float fElapsedTime) override
 	{
 		if (GetKey(olc::DOWN).bHeld) {
-			vCamera.y-=8*fElapsedTime;
+			pitch-=1*fElapsedTime;
 		}
 		if (GetKey(olc::UP).bHeld) {
-			vCamera.y+=8*fElapsedTime;
-		}
-		if (GetKey(olc::RIGHT).bHeld) {
-			vCamera.x+=8*fElapsedTime;
-		}
-		if (GetKey(olc::LEFT).bHeld) {
-			vCamera.x-=8*fElapsedTime;
+			pitch+=1*fElapsedTime;
 		}
 		vec3d vForward=Vector_Mul(vLookDir,8*fElapsedTime);
 		if (GetKey(olc::W).bHeld) {
@@ -508,7 +503,7 @@ public:
 		matWorld=Matrix_MultiplyMatrix(matWorld,matTrans);
 
 		vec3d vUp={0,1,0};
-		vec3d vTarget={0,0,1};
+		vec3d vTarget={0,sinf(pitch),cosf(pitch)};
 		mat4x4 matCameraRot=Matrix_MakeRotationY(fYaw);
 		vLookDir=Matrix_MultiplyVector(matCameraRot,vTarget);
 		vTarget=Vector_Add(vCamera,vLookDir);