FreeSpace Releases > Scripting Releases

Missile particle script

(1/5) > >>

m!m:

Yes, yet another script. This script tries to imitate that a missile with $FreeFlighTime set actually ignites when is launches as seen in the screenshot above.
To use create a file called missilePart-sct.tbm in your data/tables directory and paste the following text into it:

--- Code: (missilePart-sct.tbm) ---#Conditional Hooks

$Application: FS2_Open
$On Game Init:
[
function getLivingTime(maxLife, lifeLeft)
if (maxLife == nil or lifeLeft == nil) then
return -1
end

local time = maxLife - lifeLeft

return time
end

function weaponLivingTime(weapon)
if (weapon == nil or not weapon:isValid()) then
return -1
end

local maxLife = weapon.Class.LifeMax
local lifeLeft = weapon.LifeLeft

if (weapon.Class:isMissile() and weapon.HomingObject:isValid()) then
maxLife = maxLife * 1.2 -- "fix" for LiveLeft altering in code/weapons.cpp:4664
end

return getLivingTime(maxLife, lifeLeft)
end

function createWeaponParticle(weapon, velocity, lifeTime, radiusScale, texture)
if (weapon == nil or not weapon:isValid()) then
return
end

local model = weapon.Class.Model
local thrusters = model.Thrusters
for i=1, #thrusters do
local bank = thrusters[i]
if (bank:isValid()) then
for j=1, #bank do
local glow = bank[j]
if (glow:isValid()) then
local realVec = weapon.Orientation:unrotateVector(glow.Position)
local globalVec = weapon.Position + realVec

ts.createParticle(globalVec, velocity, lifeTime, glow.Radius * radiusScale, PARTICLE_BITMAP, -1, false, texture)
end
end
end
end
end

nullVector = ba.createVector(0, 0, 0)
maxFrameTime = 1 / 10
]

$State: GS_STATE_GAME_PLAY
$On Frame:
[
if ba.getFrametime() > maxFrameTime then
return -- If FPS is already low don't lower it with even more load
end

if (trailTexture == nil or not trailTexture:isValid()) then
return
end

if (ignitionAnim == nil or not ignitionAnim:isValid()) then
return
end

for i=1, #mn.Weapons do
local weapon = mn.Weapons[i]

if (weapon:isValid() and weapon.Class:isMissile() and weapon.HomingObject:isValid() and weaponLivingTime(weapon) > weapon.Class.FreeFlightTime) then
local velVec = weapon.Physics.Velocity - weapon:getfvec(true) * 200
if ((weapon:getfvec(true) * 200):getMagnitude() > weapon.Physics.Velocity:getMagnitude()) then
velVec = velVec / 20
end

local radius = (1 - (weapon.Class.Speed / weapon.Physics.Velocity:getMagnitude())) * 1.5
if (radius > 3) then
radius = 3
end

createWeaponParticle(weapon, velVec, particleLifeTime, radius * 3, trailTexture)

if (weapon.Class.FreeFlightTime > 0 and weaponLivingTime(weapon) >= weapon.Class.FreeFlightTime and (weaponLivingTime(weapon) - ba.getFrametime()) <= weapon.Class.FreeFlightTime) then
createWeaponParticle(weapon, nullVector, ingitionLifeTime, radius * 5, ignitionAnim)
end
end
end
]

$Application: FS2_Open
$On Mission Start:
[
trailTexture = gr.loadTexture("capflash", true)
if (trailTexture ~= nil and trailTexture:isValid()) then
particleLifeTime = trailTexture:getFramesLeft() / trailTexture:getFPS()
end

ignitionAnim = gr.loadTexture("exp20", true)
if (ignitionAnim ~= nil and ignitionAnim:isValid()) then
ingitionLifeTime =  ignitionAnim:getFramesLeft() / ignitionAnim:getFPS()
end

if (trailTexture == nil or not trailTexture:isValid()) then
ba.warning("Invalid trail texture!")
elseif (ignitionAnim == nil or not ignitionAnim:isValid()) then
ba.warning("Invalid ignition texture!")
end
]

$Application: FS2_Open
$On Mission End:
[
if (trailTexture ~= nil) then
trailTexture:unload()
trailTexture = nil
end
if (ignitionAnim ~= nil) then
ignitionAnim:unload()
ignitionAnim = nil
end
]

#End
--- End code ---

Feel free to criticize and I'm always open for new feature requests :nod:

Regards,
m!m

EDIT: I should say that this script requires a build of Revision 7011 or later

Fury:
Can you extend this to do the same with trails?

m!m:
I'm not entirely sure what you mean. Could you please explain what you mean in detail? :)

Fury:
Nevermind. I thought what this script does is prevent particle spews until free flight time expires, but it's apparently exact opposite.

Wanderer:
Yes.. Well traditionally the booster rocket makes the most of the smoke and it burns only in initial launch / flight sequence

Navigation

[0] Message Index

[#] Next page