• Review

The idea of detecting a player in the shooter Return to Castle Wolfenstein

WITHHeslene nevertheless decided to write his first blog on the last day of winter. DAMA and gentlemen, I present to you an assessment of the blog about the idea of detecting in shooters using the example of the game Return To Castle Wolfenstein. NIt is not possible to note that the author is not a game developer and chose this game of his own request. EThe loin of the blog of the stars from the sky is not enough, but the main thing is that it is useful for any reader. MIt will be necessary at the end to experiment with the discovery concept in the AFTER Effects program (for experienced users AFTER EFFects).

PODD from 2001 will be taken for a scientific examination, a cult and legendary game Return To Castle Wolfenstein. ABOUTIt is necessary to note such a thing that stealth in this game is a rarity, and these moments can be found very rarely, and even then only at the beginning of some levels. ANDAnr Games, after all, is FPS (first person shooter-first-person shooter), respectively, this is an ordinary shooter, where, with any discovery, all enemies immediately know about your location. Dwe move to the department of the very concept of detection in the first -person shooters. Ewe will based on two -dimensional space, which has only x, y coordinates. NAdo take into account that only a concept will be described here, which will be shown on the example of squares that will not relate to the game. ANDSo we proceed to the idea. I I advise you to download AFTER Effects 2022, T. To. Then each of you will be able to experiment.

The idea of detection

ANDAct, which the author represents, consists in using computer vision with tracking a change in the value of one of the color channels, in our case, through a green color rendering channel, notify all NPCs on the map. LFor all, the following elements with the following color values along the RGB channel (red, green and blue) came up for the experiment::

Player: [186,46,46] tracking function will be tied to the player’s element by changing the green color channel. As soon as the NPC review element passes through the player, then the tracking function will find this event and the alarm at the level will be raised.

NPC: [82,147,29] (NPC review in the form of a circle will also have the same color) NPC, having its own review in the form of a geometric figure, as soon as the player’s element touches, immediately raises the alarm through the tracking function that is attached to the player.

YuHu, the main elements are defined and their ideas are described, which will be realized a little below. Shwe will move to the implementation of the concept for its analysis. ATaka and the NPC stop when detecting a player in this experiment was not considered, t. To. Frankly, I did not want to bother with additional programming in the expressions of AFTER EFFects.

Implementation of the idea of detection

ShWe are now in the direction of implementations and experiments on Wednesday after AFTER Effects 2022. A Now we have the following list in which priority is distributed from the bottom up (higher – more priority):

[Corrective layer]: Has the Sample Image function, which is tied to the “player” element, monitors its change.

[NPC]: A non -wiper character, which has a route along which the element “NPC angle of view” moves with it, accordingly, with it moves with it.

[NPC viewing angle]: Moves along x, y to the coordinates after the NPC and also turns in the direction in which NPC turns. This element has the same color as NPC, only also has 50% transparency.

Pwe’ll assume the given GIF files below

The first video we see the movement of the green square (NPC) with its viewing angle. The number from above on the left is the value of a green channel in a reddish square (player). As we see, when crossing the viewing angle of the player, the value grows from 46 to 97, then it falls to 46 again, when the NPC does not see the player.

The second video will be the same experiment, but the text is added below that in case of detection, anxiety at the entire level rises and all opponents know about your presence and location.

Detection and fixation of BronzeCasino detection

ANDThe investigation showed the performance of the player’s discovery algorithm in the game Return To Castle Wolfenstein, or rather, this detection algorithm is extremely close to the detection algorithm in the mentioned game earlier.

FInitish direct in front of us, and therefore we should make out the experiment itself, or rather, what and how to create for its implementation and conduct.

The location will look like this:

Let’s go from the bottom up the list from Afrer Effects

[Shape Layer] 7th element This background, It has only a color of important, it is necessary to set the fill values (Fill) are as follows:

We stretch the window on the entire video and put the “castle”, as in the list

[Shape Layer] 6th element This player, We set the flood values (fill)

Further, this element is best renamed Romaa712

[Shape Layer] 5th element This is a NPC review (it is necessary to create a huge circle, the diameter of which will be from the lower part to the upper part), we call it Sg_fow and set the following colors

Then you need to add the effect to this layer Radial Wip and set up it as follows

Transition Complection: Put 80%

Start angle: insert the code below

Wipe Center: Insert the code below

The effect is configured, now it is necessary to configure the position of the 5th element, for this it is necessary to make the following:

Go to the tab POSITION this layer and insert the next code there

[Shape Layer] 4-element This is a NPC review, it must be called SG

It is also advisable to animize this layer of Position and Rotation, so that somewhere the NPC review is crossing with the player.

[Adjusment Layer] 3rd element, We throw the effect on it SAMPLE IMAGE And set the effect

Center: Insert the code below

Sampled color output: insert the code below

[Text Layer] 2nd element This is the usual output of the text [call it 12122], which will calculate the values of green from the 1st element

In Source Text we insert the following code:

[Text Layer] 1st element This is the usual output of the text [call it 12122], which will calculate the values of green from the 1st element

In Source Text we insert the following code:

Results

ABOUTx, it was difficult, but quite interesting, because the whole experiment and its conduct was done by writing expressions in AFTER EFFects, among the animation in AFTER EFFects there was only the animation of the NPC and turn, the rest is programming.

INThe following are the following: the experiment and analysis of the experimental results in the AFTER Effects environment gave positive experience, with which any reader of this blog will have an idea of instant detection in such games as Return To Casle Wolfenstein.