Player and Enemy collisions[PLATFORMER]

Hello,

I have a player and an enemy object in my game.

[attachment=1:3j2ek84d][/attachment:3j2ek84d]

Player is blue and enemy is orangish. So when I collide with enemy from side without touching the floor(left side of the image) then the enemy is killed but i want player object to take hit/damage without killing the enemy. Player object only gets hit when player is touching the floor and colliding with the enemy(right side of the image). I want my player object to get hit in both of the examples. And I should be able to kill enemy when i hit it from the top like Mario games.

Here is the code that i am using.

[attachment=0:3j2ek84d][/attachment:3j2ek84d]

PLEASE ASK IF YOU WANT TO KNOW ANYTHING ABOUT THE GAME. E.G. PLAYER BEHAVIOURS.

THANKS.

player on collision with enemy

---(sub event) player is falling

---(sub event) player y < enemy y ----- enemy destroy

else ---- player get hit