Single Image Movement Blocking

Hello, guys! How are you? I'm trying to create a little game similar to Please login to see this link.. To define the areas where the player and the enemy can move, I created the following image that I have used as an obstacle:

For movement, I use the basics: (While the K key is pressed: Change position of the object? + -XY N pixels). However, when I try to block the player's movement, the background image is ignored. The condition is also simple: (If the object 'Player' collides with 'Image': Stop the movement of 'Player'). I also tried to stop the movement when 'Player' is over the image, but with the same result. The project file is attached. Ah, taking the opportunity: the player and the enemy have a HUD. To update the HP level, I resize a rectangle that simulates the health bar. However, in the formula I used the animation is very abrupt. Maintains the same position for various values and, when reducing, reduces in large blocks, instead of reducing point by point. What would be the best formula to make the bar softer? To facilitate testing for anyone who can help, here are the game commands - and two images because ... Why not?

WASD moves the character. Aim at the enemy with your MOUSE and shoot with the LEFT BUTTON. During DEBUG, the X key increases the character's speed. Ah, all images are placeholders. Thank you in advance!

Thank you. I also use a translator, but we understand each other well haha. The "Counter" object worked perfectly, I had never tested it. Now, the lock image is an "Active" object, not a background.

Yes that's right. I do not know if there is another way to move the player to replace this model and that does not cause the problem. Thank you very much for the answers.