Graal Forums - Tiles Triggering Actions

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blackbeltben

06-09-2014 05:00 PM

Tiles Triggering Actions

I want to do a check to see if the player is in a certain tile.
How would I check?
For this example, I just want to use the top left tile (1x1)

PHP Code:


		
			
onTimeOut(){

 setTimer(0.05);

 if /*Check if player is in certain tile (1x1)*/ {

  player.chat = "Found Tile!";

 }

}

Jakov_the_Jakovasaur

06-09-2014 05:07 PM

PHP Code:


		
			
temp.playerTile = tiles[player.x + 1.5, player.y + 2];

theres also tiletype:

PHP Code:


		
			
temp.playerTiletype = tiletype(player.x + 1.5, player.y + 2);

Quote:

0: non-blocking, foreground
1: non-blocking
2: hurting underground
3: chair
4: bed1 (upper part)
5: bed2
6: swamp
7: lava swamp
8: near water
9: near lava
10: desert
11: water
12: lava
20: throw-through
21: jump stone
22: blocking
23: blocking, foreground

blackbeltben

06-09-2014 05:17 PM

Quote:

Originally Posted by Jakov_the_Jakovasaur (Post 1727955)

PHP Code:


		
			
temp.playerTile = tiles[player.x + 1.5, player.y + 2];

theres also tiletype:

PHP Code:


		
			
temp.playerTiletype = tiletype(player.x + 1.5, player.y + 2);

Do you think you could use it in an example for me, I'm having trouble understanding.. I was never good at tile stuff.

I'm using this for the check but I get errors. I guess I'm not using it in right context..

PHP Code:


		
			
 if ((temp.playerTiletype == 23(player.x+1.5, player.y+2)){

  player.chat = "found";

 }

Jakov_the_Jakovasaur

06-09-2014 05:26 PM

temp.playerTiletype = tiles[player.x + 1.5, player.y + 2]; is just defining a temporary variable as whatever is returned by tiles[player.x + 1.5, player.y + 2], which will be unset once the current function process ends

all you need to do is:

PHP Code:


		
			
if (tiles[player.x + 1.5, player.y + 2] == 1x1) {
 player.chat = "Found Tile!";
}

blackbeltben

06-09-2014 06:18 PM

Quote:

Originally Posted by Jakov_the_Jakovasaur (Post 1727957)

PHP Code:


		
			
if (tiles[player.x + 1.5, player.y + 2] == 1x1) {

 player.chat = "Found Tile!";

}

error: unexpected symbol x1 at line 68: if (tiles[player.x + 1.5, player.y + 2] == 1x1) {

Don't think the check you gave me is correct..

Jakov_the_Jakovasaur

06-09-2014 06:50 PM

i didnt realise graal doesnt like using 1x1 directly like that, i usually change the tile values to their actual hexadecimal value, in this case 17:

PHP Code:


		
			
if (tiles[player.x + 1.5, player.y + 2] == 17) { 
 player.chat = "Found Tile!"; 
}

blackbeltben

06-09-2014 07:06 PM

Quote:

Originally Posted by Jakov_the_Jakovasaur (Post 1727965)

i didnt realise graal doesnt like using 1x1 directly like that, i usually change the tile values to their actual hexadecimal value, in this case 17:

PHP Code:


		
			
if (tiles[player.x + 1.5, player.y + 2] == 17) { 

 player.chat = "Found Tile!"; 

}

A couple things...

1. Nothing is happening when I collide with the tile... Not sure if I'm missing something.

2. How did you come up with 17 for 1x1 tile?

Jakov_the_Jakovasaur

06-09-2014 07:24 PM

i just realised that the first tile should be 0x0 rather than 1x1 as mentioned in your first post, 1x1 probably isnt even valid

should definitely work if you do:

PHP Code:


		
			
if (tiles[player.x + 1.5, player.y + 2] == 0)

taking a closer look at your snippet of code in the first post, its worth mentioning that it should be something like this if it isnt already:

PHP Code:


		
			
//#CLIENTSIDE

function onCreated()

  this.onTimeout();



function onTimeout() {

  if (tiles[player.x + 1.5, player.y + 2] == 0) {

    player.chat = "Found Tile!";

  }

  this.setTimer(0.05);

}

if something doesnt work as expected then you can also attempt to debug it like so:

PHP Code:


		
			
player.chat = tiles[player.x + 1.5, player.y + 2];

blackbeltben

06-09-2014 07:35 PM

Quote:

Originally Posted by Jakov_the_Jakovasaur (Post 1727967)

i just realised that the first tile should be 0x0 rather than 1x1 as mentioned in your first post, 1x1 probably isnt even valid

should definitely work if you do:

PHP Code:


		
			
if (tiles[player.x + 1.5, player.y + 2] == 0)

taking a closer look at your snippet of code in the first post, its worth mentioning that it should be something like this if it isnt already:

PHP Code:


		
			
//#CLIENTSIDE

function onCreated()

  this.onTimeout();



function onTimeout() {

  if (tiles[player.x + 1.5, player.y + 2] == 0) {

    player.chat = "Found Tile!";

  }

  this.setTimer(0.05);

}

if something doesnt work as expected then you can also attempt to debug it like so:

PHP Code:


		
			
player.chat = tiles[player.x + 1.5, player.y + 2];

Yay it works :)

But can you explain how you did get 17 though? How do I calculate what tiles are equal to what value?

Jakov_the_Jakovasaur

06-09-2014 07:54 PM

there are plenty of online tools that can do it, for example:

http://www.binaryhexconverter.com/he...imal-converter

0x would unambiguously state that the following value is hexadecimal and the number before the x represents a count of 16s before it, so 1x1 is basically 16 + 1, 2x1 is 32 + 1 aka 33, 2xF is 32 + 15 aka 47 etc

whereas if you used the true hexadecimal value for 17 which is '11' that would appear more ambiguous

blackbeltben

06-09-2014 10:13 PM

Quote:

Originally Posted by Jakov_the_Jakovasaur (Post 1727969)

I really appreciate the help ;)

But I have one more question to add to this

What can I do so I don't have to do this..

PHP Code:


		
			
if ((tiles[player.x+1.5, player.y+3] != 0) || (tiles[player.x+1.5, player.y+3] != 32) || (tiles[player.x+1.5, player.y+3] != 66) || /*etc*/){

just have all the tile values in one check

fowlplay4

06-10-2014 03:13 AM

PHP Code:


		
			
temp.tile = tiles[player.x+1.5, player.y+3];
temp.badtiles = {0,1,2,3,4};
if (temp.tile in temp.badtiles) {
  player.chat = "this is a bad tile";
} else {
  player.chat = "this is not a bad tile";
}

blackbeltben

06-10-2014 02:00 PM

Quote:

Originally Posted by fowlplay4 (Post 1727982)

PHP Code:


		
			
temp.tile = tiles[player.x+1.5, player.y+3];
temp.badtiles = {0,1,2,3,4};
if (temp.tile in temp.badtiles) {
  player.chat = "this is a bad tile";
} else {
  player.chat = "this is not a bad tile";
}

Could I do something like..

on created

PHP Code:


		
			
function onCreated(){
 player.blocktiles = (1,2,3,4,5,etc);
}

on check

PHP Code:


		
			
if (tiles[player.x+1.5, player.y+3] != player.blocktiles){

Obviously I don't think this will work as written. But I want to do it similar to that way.. How can I go about this?

fowlplay4

06-10-2014 03:51 PM

PHP Code:


		
			
function onCreated() {
  if (!isBlocking(tiles[player.x+1.5,player.y+3])) {
    player.chat = "this tile is not blocking";
  }
}

function isBlocking(tile) {
  temp.blocktiles = {1,2,3,4,5};
  return (tile in temp.blocktiles);
}

blackbeltben

06-11-2014 11:28 AM

Quote:

Originally Posted by Jakov_the_Jakovasaur (Post 1727969)

I'm having trouble figuring out the value for each tile. I used the calculator to figure out what this tile it:

Location: Farthest to the left. Second from the top
Possible Formulas: 2xa, ax2, 1xb, bx1

I put all these in calculator and none of the values are detecting

Jakov_the_Jakovasaur

06-11-2014 04:44 PM

Quote:

Originally Posted by blackbeltben (Post 1728008)

http://i.imgur.com/OoMwGWp.png

+

Quote:

Originally Posted by Jakov_the_Jakovasaur (Post 1727967)

if something doesnt work as expected then you can also attempt to debug it like so:

PHP Code:


		
			
player.chat = tiles[player.x + 1.5, player.y + 2];

blackbeltben

06-14-2014 06:52 PM

Blocking NPCs

I have my tiles working correctly thanks to you two :)

on Created:

PHP Code:


		
			
function isBlocking(tile) {

  temp.blocktiles = {0,16,1024,1025,1026,1027,1028,1029};

  return (tile in temp.blocktiles);

}

And the check:

PHP Code:


		
			
 if (!isBlocking(tiles[player.x+1.5,player.y+3])){

   player.y += 1;

  }

So if the player is not touching the blocking tiles, the player will fall
(for platformer system)

Now I want to go advanced and make collision with certain NPCs..

So I was wondering if someone could help me write this.

The NPC

PHP Code:


		
			
function onCreated(){

 this.blocking = true;

 setShape(1, 32, 32);

 setImg("block.png");

}

The on Created:

PHP Code:


		
			
function isBlocking(tile) {

  temp.blocktiles = {0,16,1024,1025,1026,1027,1028,1029};

  return (tile in temp.blocktiles);

  temp.blocknpc = //Check if the temp.npc.blocking == true

}

The check:

PHP Code:


		
			
 if (!isBlocking(tiles[player.x+1.5,player.y+3])){

  if /*not colliding with npc that is blocking*/ {

   player.y += 1;

  }

 }

Jakov_the_Jakovasaur

06-15-2014 07:18 AM

Quote:

Originally Posted by blackbeltben (Post 1728090)

I have my tiles working correctly thanks to you two :)

on Created:

PHP Code:


		
			
function isBlocking(tile) {

  temp.blocktiles = {0,16,1024,1025,1026,1027,1028,1029};

  return (tile in temp.blocktiles);

}

And the check:

PHP Code:


		
			
 if (!isBlocking(tiles[player.x+1.5,player.y+3])){

   player.y += 1;

  }

PHP Code:


		
			
function onCreated(){

 this.blocking = true;

 setShape(1, 32, 32);

 setImg("block.png");

}

The on Created:

PHP Code:


		
			
function isBlocking(tile) {

  temp.blocktiles = {0,16,1024,1025,1026,1027,1028,1029};

  return (tile in temp.blocktiles);

  temp.blocknpc = //Check if the temp.npc.blocking == true

}

The check:

PHP Code:


		
			
 if (!isBlocking(tiles[player.x+1.5,player.y+3])){

  if /*not colliding with npc that is blocking*/ {

   player.y += 1;

  }

 }

something like this?

PHP Code:


		
			
function isBlocking(tile) {

  temp.blocktiles = {0,16,1024,1025,1026,1027,1028,1029};

  return

    tiles[player.x + 1.5, player.y + 2] in temp.blocktiles ||

    this.checkBlockNPCs()

  ;

}



function checkBlockNPCs() {



  temp.npcs = findareanpcs(player.x + 1.5, player.y + 2, 0.0625, 0.0625);



  for (temp.n : temp.npcs) 

    if (temp.n.blocking)

      return true;



  return false;

}

but then im not sure its a good idea to be checking just a single pixel for collisions, graal movement usually checks the width of the players body (2 tiles or 32 pixels)

blackbeltben

06-15-2014 10:47 AM

Quote:

Originally Posted by Jakov_the_Jakovasaur (Post 1728101)

something like this?

PHP Code:


		
			
function isBlocking(tile) {

  temp.blocktiles = {0,16,1024,1025,1026,1027,1028,1029};

  return

    tiles[player.x + 1.5, player.y + 2] in temp.blocktiles ||

    this.checkBlockNPCs()

  ;

}



function checkBlockNPCs() {



  temp.npcs = findareanpcs(player.x + 1.5, player.y + 2, 0.0625, 0.0625);



  for (temp.n : temp.npcs) 

    if (temp.n.blocking)

      return true;



  return false;

}

but then im not sure its a good idea to be checking just a single pixel for collisions, graal movement usually checks the width of the players body (2 tiles or 32 pixels)

What are the 0.0625s for?

Jakov_the_Jakovasaur

06-15-2014 11:00 AM

they are width and height parameters

when you use tiletype() or onwall() it is checking only a single pixel, so for that npcs check having a width + height of 0.0625 (aka 1 pixel) would match the tiletype() check

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