Call of Duty 5: Dynamic Foliage

This tutorial will show how to create Dynamic Foliage in COD:WAW. Credits for Tutorial and Script goes to Zweimann

Intro

By Zweimann
This is an easy way to have Dynamic Foliage in your custom map. Only 2 Steps. This code works and needs no mod, so your map runs dynamic foliage as a standalone block.
This is what you get:

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Preparation and Radiant

• Change your misc_models (Trees and Palms, Foliage and grass) to script_models.
• Choose between 3 different targetnames for them (can be any of them but changes must be reflected in the script in next Step):

Trees and palms:

targetname: dyn_trees

Big Foliage:

targetname: dyn_foliage

Grass and tiny foliage:

targetname: dyn_grass

TIPS

It can be a long task to change all your misc_models into script_model and add the targetname so here is one way to do it quicker:

Make a backup of your .MAP files before starting this Tutorial in case something goes wrong!

• Select one of the model you wish to have dynamic - for this example lets say the model is called foliage_cod5_tallgrass10a
• Bring up the Entity properties using n
• Highlight the K/V Model/foliage_cod5_tallgrass10a
• Close the Entity properties by pressing n again
• Now go to Selection > Select by Key/Value (or use shorcut SHIFT-CRTL-F):

• After you click you will see that the Key Model and Value foliage_cod5_tallgrass10a will be already filled in, click OK

This will now select all the other Model called foliage_cod5_tallgrass10a in the level Bring up the Entity properties using n Now you can change misc_model Key to script_model (highlight it first then edit) After this you can add the new K/V: Key: Targetname Value: Dyn_foliage File:Dynamic foliage tut 03.jpg

Note! Script_models do not support Modelscale!! Make sure to reset to 1 or remove the modelscale K/V if any and replace the models accordingly on ground. You can now press Enter to complete and keep going with other models Remember to keep an eye on the number of script_model using M: File:Dynamic foliage tut 04.jpg

Scripting

• Create a new file in raw/maps/mp/ called _dynamic_foliage.gsc
• Open it with Notepad and copy/paste the following script:

///////////////////////////////////////////////////////////
// Dynamic Foliage v.1 for CoD:WaW & CoD:MW
// Coded by Zweimann ( [email protected] )
// This code has been written to enhance the ingame experience,
// adding dynamic scenarios instead of static ones.
///////////////////////////////////////////////////////////
#include maps\mp\_utility;
#include common_scripts\utility;

// ---------------------------------------------------------------------
// Init Script
// ---------------------------------------------------------------------

initdfs()
{
	println("^1Initializing Zweimann's Dynamic Foliage System");

	// There should be three different script_models: trees, foliage and grass, because they're
	// treated in a different way.
	// Consider Grass to grass (obviously) and to very small foliage elements
	// Consider Foliage to midsize foliage
	// classname: script_model
	// targetname: <name>
	// These names were used in Burma 1.1. Change them to whatever you want
	level.dfs_tree_sm_name = "dyn_trees";
	level.dfs_foliage_sm_name = "dyn_foliage";
	level.dfs_grass_sm_name = "dyn_grass";

	// You must set up here Strength of Wind, to simulate higher or lower sway
	// on foliage and trees.
	// 0 means no wind @ all
	// 10 means A HURRICANE : )
	// Recommended values: 0.3 to 0.6. Optimal value: 0.5;
	// Obviously you can setup a dvar or whatever for this

	level.dfs_wind_strength = 0.5;
	// Let's start

	foliage_animation();
	grass_animation();
	tree_animation();
}

// -----------------------------------------------------------------
// Main Scripts
// -----------------------------------------------------------------

tree_animation()
{
	level endon("game_ended");
	// Sway animation for Trees
	// Slower, softer

	entities = getentarray( level.dfs_tree_sm_name, "targetname" );

	vpoint = level.dfs_wind_strength / 1.4;
	vangles = level.dfs_wind_strength / 1.5;
	vtime = ( 6 * ( 1 - level.dfs_wind_strength ) );

	for( i = 0; i < entities.size; i++ )
		{
			factor = randomIntRange( 0, 10 );

			if ( factor >= 5 )
			mmfactor = 1;
			else
			mmfactor = -1;

			vibvector = entities[i].origin + ( ( vpoint * mmfactor ), 0, 0 );
			entities[i] vibrate( vibvector, vangles * mmfactor , vtime, ( ( level.timelimit * 1.2 ) * 60 ) );
			// Tree is damageable now
			entities[i] setcandamage(true);
			// Trees are destroyable, so let's start their threads
			entities[i] thread treethreads();
			wait 0.005;
		}
	}

foliage_animation()
{
	level endon("game_ended");

	// Sway animation for Foliage
	// Stronger
	entities = getentarray( level.dfs_foliage_sm_name, "targetname" );
	vpoint = level.dfs_wind_strength * 1.5;
	vangles = level.dfs_wind_strength * 2;
	vtime = ( ( 1 - level.dfs_wind_strength ) ) * 5;

	mmfactor = 1;

	for( i = 0; i < entities.size; i++ )
	{
		mmfactor *= -1;
		vibvector = entities[i].origin + ( randomFloatRange( 0,90 ) * mmfactor , 0, 0 );
		entities[i] vibrate( vibvector, ( vangles * mmfactor ) , vtime, ( ( level.timelimit * 1.2 ) * 60 ) );
		wait 0.005;
	}
}

grass_animation()
{
	level endon("game_ended");

	// Sway animation for Grass
	// Strongest
	entities = getentarray( level.dfs_grass_sm_name, "targetname" );

	vpoint = level.dfs_wind_strength * 2;
	vangles = level.dfs_wind_strength * 4;
	vtime = ( ( 1 - level.dfs_wind_strength ) ) * 2.5;

	mmfactor = 1;

	for( i = 0; i < entities.size; i++ )
	{
		mmfactor *= -1;
		vibvector = entities[i].origin + ( ( vpoint * mmfactor ), 0, 0 );
		entities[i] vibrate( vibvector, ( vangles * mmfactor ) , vtime, ( ( level.timelimit * 1.2 ) * 60 ) );
		wait 0.005;
	}
}

treethreads()
{
	level endon("game_ended");
	self endon("broken");

	while( !isDefined(self.broken) )
	{
		// You can even play with tagName if you place Trees/Palms with more than one tag
		// Trees could be burned, broken and more.
		// By the moment, they're destroyed and sunk down

		self waittill("damage", damage, attacker, direction_vec, point, mod, modelName, tagName);

		if ( mod != "MOD_RIFLE_BULLET" && mod != "MOD_PISTOL_BULLET" && mod != "MOD_MELEE" )
			if ( damage > 50 )
				self treefall();
	}
}

// Code below is originally from CoD:WaW scripts
// Modified by Zweimann to fit our requirements

treefall()
{
	yaw = randomint(360);

	break_angles = (self.angles[0], yaw, self.angles[2]);
	break_vector = anglesToForward(break_angles);
	break_vector = vectorScale(break_vector, 100);
	start = (self.origin + break_vector) + (0, 0, 512);
	end = start + (0, 0, -1024);
	trace = bulletTrace(start, end, false, self);
	dist_vector = ((self.origin + break_vector) - trace["position"]);
	dist = dist_vector[2];
	velocity = 0;
	travelled = 0;
	lasttravelled = travelled;
	count = 0;
	lastcount = count;

	while(travelled < dist)
	{
		velocity = velocity + 340;
		lasttravelled = travelled;
		travelled = travelled + velocity;
		lastcount = count;
		count++;
	}
	remainder = lasttravelled - dist;
	if(remainder < 0)
	remainder = remainder * -1;

	if ( velocity != 0 )
	time = lastcount + (remainder / velocity);
	else
	time = lastcount;
	self moveGravity(break_vector, time);
	self waittill("movedone");
	vec = vectorNormalize(break_vector);
	vec = vectorScale(vec, 320);
	start = (self.origin + vec) + (0, 0, 1024);
	end = start + (0, 0, -1024);
	trace = bulletTrace(start, end, false, self);
	ground = trace["position"];
	treeup_vector = anglesToUp(self.angles);
	treeup_angles = vectortoangles(treeup_vector);
	rest_vector = ground - self.origin;
	rest_angles = vectorToAngles(rest_vector);
	treeorg = spawn("script_origin", self.origin);
	treeorg.origin = self.origin;
	treeorg.angles = (treeup_angles[0], rest_angles[1], rest_angles[2]);

	self linkto(treeorg);

	treeorg rotateTo(rest_angles, 1.15, .5, 0);
	treeorg waittill("rotatedone");
	treeorg rotatepitch(-2.5,.21,.05,.15);
	treeorg waittill("rotatedone");
	treeorg rotatepitch(2.5,.26,.15,.1);
	treeorg waittill("rotatedone");
	self unlink();

	self.broken = 1;
	self notify("broken");
	self setcandamage(false);

}

• Save the file, now open your Main Map GSC File and just before the final } add this line:

maps\mp\_dynamic_foliage::initdfs();

• Save the file

Zone File

• Add the following line to your Zone File:

rawfile,maps/mp/_dynamic_foliage.gsc

• Enjoy a new CODWAW Experience!

Limitations

Just like Spawns the script_models are Entities and therefore have a limit - most likely to be 1024. The maximum number of Script_models so far tested is 576.
You can check the number of entities you have in a level by hitting M when in Radiant.