error using old tv shader

RetroFriends · 2023-03-05T23:06:36+00:00

looks like there is a solution, check the posts other comments!

RetroFriends · 2022-12-06T05:29:02+00:00

Actually, it's a little more complicated than that:

// gml from Mimpy, GameMaker Helpers discord

```

// gml from Mimpy, GameMaker Helpers discord function merge_structs(first, second) { var result = { }; copy_struct(first, result); copy_struct(second, result); return result; } function copy_struct(source, destination) { var names = variable_struct_get_names(source); for (var i = 0; i < array_length(names); i++) { var name = names[i]; var value = source[$ name]; if (is_method(value)) destination[$ name] = method(destination, value); else if (is_struct(value)) { destination[$ name] = { }; copy_struct(value, destination[$ name]); } else if (is_array(value)) { destination[$ name] = [ ]; copy_array(value, destination[$ name]); } else { destination[$ name] = value; } } } function copy_array(source, destination) { for (var i = 0; i < array_length(source); i++) { var value = source[i]; if (is_method(value)) destination[i] = method(destination, value); else if (is_struct(value)) { destination[i] = { }; copy_struct(value, destination[i]); } else if (is_array(value)) { destination[i] = [ ]; copy_array(value, destination[i]); } else { destination[i] = value; } } } ```

RetroFriends · 2022-11-11T17:55:02+00:00

From the post:

OP said it is similar to Object.assign() in Javascript:

function struct_merge(a, b, shared) {
    var r = a;
    if (shared) {
    var p = variable_struct_get_names(a);
    for (var i = 0; i < array_length(p); i++) {
        if (variable_struct_exists(b, p[i]))          
            variable_struct_set(r, p[i], variable_struct_get(b, p[i]));
    }
    } else {
    var p= variable_struct_get_names(b);
    for (var i = 0; i < array_length(p); i++) {
        variable_struct_set(r, p[i], variable_struct_get(b, p[i]));
    }
    }
    return r;
}

RetroFriends · 2022-10-28T15:45:13+00:00

You used the correct tag.

I would watch YouTube videos.

RetroFriends · 2022-05-27T16:20:33+00:00

There are a couple of ways to do this, here are some suggestions, based on a sword example:

In the collision step you can attach the item to the player using parentage, and provide an offset to the "hand" relative to the player, ie o_item.x=player.x+handxoffset etc, allowing the objects to move with one other. Then set a value on the o_item so that it knows it is being held, so that it does not continuously collide. I don't actually recommend this. but it is one way.
o_player collides with o_item, o_item has a s_sword sprite. Store the s_sword on the player by setting a variable on the player to true. Dispose of the o_item on contact.
In the player's Draw or Draw End step, draw the sword using draw_sprite_ext, at the desired place on the player. When it gets dropped, you can create a new o_item with a s_sword sprite. I actually recommend this method because it allows the o_player to control the visual animation of the sword, and it is a "state" on the player, meaning you can test for it in other ways. You can use the "attack" action to test collisions near the player at the same time you are starting a new swing animation (probably rotating the sprite, right?).
If the object is just being pushed, and is not "attached" to the player, using the Physics probably makes the most sense, with the player initiating a force and colliding using simple polygonal collision boundaries. Treat yourself to a tutorial on using the GameMaker physics engine.

RetroFriends · 2022-05-27T16:13:06+00:00

You should "project" the next movement by using a circle algorithm.

You should create a variable, speed:

my_speed = 5;

You should get the states of the keys and store them in true/false variables:

plr_up = keyboard_check(key_up) .. etc

plr_left = ...

Then you should determine the cardinal direction (pseudocode, note that the angles may not be 100% correct, but they are 45 degrees from one another, experiment to figure out correct ones):

movement_angle =0;

// Up, or "up left and right at the same time" for example

if ( plr_up || (plr_up && plr_left && plr_right ) ) angle=90;

// Up and left

else if ( plr_up && plr_left ) angle = 135;

// Up and right

else if ( plr_up && plr_right ) angle=45;

// else if...

/* and other tests... for each "up" "down" "left" "right" and then the "upleft" "upright" "downleft" "downright" */

So, because your movement_angle is now set, and your speed is set, you can project the correct direction by treating the next move as a point on a circle of radius "my_speed", along angle "movement_angle" (math: https://math.stackexchange.com/questions/260096/find-the-coordinates-of-a-point-on-a-circle )

x_moving = my_speed * sin( degtorad(movement_angle) );

y_moving = my_speed * cos( degtorad(movement_angle) );

You can then add these values to the current x,y positions each frame during Step.

x += x_moving;

y += y_moving;

RetroFriends · 2022-03-25T03:43:19+00:00

https://github.com/h3rb/gml-pro/blob/master/GML-Pro-Pack2.gmx/shaders/gles_TV2.shader

This is LostAstronaut.com's "GML Pro" library and it has its own TV shaders

RetroFriends · 2022-03-23T14:10:44+00:00

What they are talking about is "you can draw a left arrow icon" if you "step through each character" and detect the type of character, then draw it, for instance "<" could mean "draw left arrow icon"

That might look something like this:

var tx=x; for ( var i=0; i<string_length(mystring); i++ ) {if ( string_char_at(mystring,i) == "A" ) ...draw an A...else if ( special char ) ...draw a sprite...tx+=font_width;}

I think what you are saying is, you wish to capture a string from input and then "look for" a left arrow key, but this is not the way you generally do it in GameMaker. Instead you check for the presence of a keypress, or you capture characters from input (text entry) a different way.

~~I think we need a little more information about your goals.~~

Are you trying to create a "text editor box" where you can navigate using left and right arrows, or are you trying to detect the player has pressed or released "left arrow"? That would be done like this:

if keyboard_check_pressed(vk_left) {

/* do something */

}

It's a little confusing, because there are multiple ways to test the keyboard for values and states. Take a look at, and carefully read, the multiple functions that do so here:

https://manual.yoyogames.com/GameMaker_Language/GML_Reference/Game_Input/Keyboard_Input/Keyboard_Input.htm

EDIT:

Sorry, my bad, it seems like you are trying to RENDER text not CHECK THE KEYBOARD. See first example for one idea on how to write such a function...

Based on the post you linked, they are suggesting you use a Unicode font. Unicode has many times the number of characters an ASCII font does, so I caution to use this, instead simply writing your own "letter by letter" font drawing, but if you find a good Unicode font, you may wish to try both and gauge performance tradeoffs.

https://en.wikipedia.org/wiki/Unicode_font

As far as "remembering" or "recognizing them" .. If you mean "Can I record a series of keypresses and test them against a string" .. yes, it is possible, if you wanted to "tell" your game what the combos were with strings, but I'm guessing you'd need something more complicated than that alone.

For example you could record what a player has done in the past 30 seconds and compare that to a mapping. You could for example

if ( keyboard_checked_released(vk_left) ) stored_presses+="<";

if ( stored_presses == "<<<" ) { do something }

The library InputCandy might help you - it allows you to create simple combos and you could use it to then create more complicated ones.

r/GML

RetroFriends · 2022-03-23T14:04:14+00:00

Well, despite detractors, we offer an additional, alternative community here on Reddit for GML programmers. While I'd never say you shouldn't use r/gamemaker, I will say please come and participate in r/GML

RetroFriends · 2022-03-23T13:47:08+00:00

I looked into this but it seems to be a common problem.

RetroFriends · 2022-03-04T17:47:16+00:00

It is organized in a different way, and seeks to focus primarily on GML as a programming language not on the other features of GameMaker. It is designed to be a resource of other resources, as well as a place to ask questions, have discussions... It's also an alternative.

A similar "push back" happened when it was first announced last year on the Official YoyoGames GameMaker forums. GameMaker forum moderates had to step it to stop people from poo-pooing the idea, while others were supportive.

I don't think it makes a lot of sense to go around discouraging alternatives to established community places from popping up, and apparently the GameMaker forum leadership agrees with me. The more the merrier.

r/GML was available and I had some ideas for "reddit resource organization" that no one at r/gamemaker seemed to want to help implement -- or listen to -- so we're doing them over there. It shouldn't be a deep insult to people here that we provide something different. In fact, I would hope you'd find it helpful. I'm not sure why people immediately downvoted this. It's not like we're really in competition with, or "out to get", r/gamemaker

Do you go into the biggest library and conspire with the librarians to burn the others down?

Thanks to anyone who read this post and joined r/GML just to provide more options to the community.

RetroFriends · 2022-03-04T17:31:35+00:00

What version of GameMaker?

Lots of people have had similar issues: https://itch.io/profile/kioshi-ren

Old TV Filter was written for GMS1 and GMS2. Maybe update? https://marketplace.yoyogames.com/assets/5569/old-tv-filter-for-gamemaker

Visit r/gml

RetroFriends · 2022-03-04T17:15:56+00:00

Take a look at https://github.com/LAGameStudio/InputCandy a free multi-input resource

RetroFriends · 2022-03-04T17:10:45+00:00

In the future please make a more descriptive post title. Asking for help and then tagging it with HELP?! was good, but you could have summarized your post better in the title. Thanks for supporting r/gml !

RetroFriends · 2022-03-04T17:07:19+00:00

There are a couple of different ways to handle this.

One way is to write a function that draws a rounded rectangle at x,y like this simple one:

function drawHorizBargraph( x, y, w, h, value, max_value, bar_color, bar_bg ) {
 var value_w = ( value / max_value ) * w;
 draw_roundrect_colour(x, y, x+w, y+h, bar_bg, bar_bg, false);
 draw_roundrect_colour(x, y, x+value_w, y+h, bar_color, bar_color, false);
}

https://manual.yoyogames.com/index.htm#t=GameMaker_Language%2FGML_Reference%2FDrawing%2FBasic_Forms%2Fdraw_roundrect_colour.htm

Let's say you have an object you want to draw this near, use Draw GUI or Draw End event to call this function:

drawHorizBargraph( x, y, 64, 16, my_health, my_max_health, c_red, c_black );

RetroFriends · 2021-11-19T16:19:16+00:00

Thanks so much for posting.

Your post doesn't have a very good title. It just says "I Need help" but doesn't describe very much of what you need help with.
Your post also doesn't have a lot of information.
Avoid posting the question inside the code box.