Vehicle Gunner problem - GameGuru Forum

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miltonmdq

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Posted: 24th May 2020 00:15

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Hello! I am using the vehicle gunner script to do a quad in first person, but the problem is that it goes through all the objects and does not collide with anybody except the NPCs, but only where the character is .. this is the script. Thank you

local enter_range = {}
local enter_angle = {}

local pos_mod = {}
local pos_y = {}
local pos_x = nil 
local pos_z = nil 
local posy = nil
local state = {}
local speed = {}
local max_speed = {}
local min_speed = {}
local turn_speed = {}
local acceleration = {}
local decceleration = {}
local impact_range = {}
local impact_angle = {}
local angle_mod = {}
local health = {}
local old_health = nil

local vpressed = 0 
function vehicle_gunner_init(e)
enter_range[e] = 200 --how close player needs to be to mount the vehicle
enter_angle[e] = 35 --player looking at the vehicle (smaller = tighter angle)
pos_mod[e] = 60 --how far back/forward in the vehicle the player will be (negative value = backwards)
pos_y[e] = 20 --how high above/below the vehicle height the player will be 
max_speed[e] = 150 --top speed for the vehicle 
min_speed[e] = -20 --top reversing speed 
acceleration[e] = 2 --how quickly the vehicle gains speed (in reverse too) 
decceleration[e] = 1 --how quickly the vehicle slows down if player not pressing W or S 
turn_speed[e] = 2 --how quickly the vehicle turns 
impact_range[e] = 200 --when enemies will get run over 
impact_angle[e] = 20 --adjusts angle for when enemies will get run over (smaller value = narrow vehicle)
health[e] = 1000 --how much health to give vehicle (adjusts player health while in the vehicle)
angle_mod[e] = 0 --if you want the player to face a different direction (other than forward) when first entering the vehicle

state[e] = "wait"
speed[e] = 0 
end

function vehicle_gunner_main(e)
if state[e] == "wait" then 
CollisionOn(e)
if PlayerLooking(e,enter_range[e],enter_angle[e]) == 1 then 
Prompt("Mount the gun? *E*")
if g_KeyPressE == 1 and vpressed == 0 then 
vpressed = 1 
old_health = g_PlayerHealth
SetPlayerHealth(health[e])
new_y = math.rad(g_Entity[e]['angley'])
pos_x = g_Entity[e]['x'] + (math.sin(new_y) * pos_mod[e])
pos_z = g_Entity[e]['z'] + (math.cos(new_y) * pos_mod[e])
SetFreezePosition(pos_x,g_Entity[e]['y']+pos_y[e],pos_z)
SetFreezeAngle(g_Entity[e]['anglex'],g_Entity[e]['angley']+angle_mod[e],g_Entity[e]['anglez'])
TransportToFreezePosition()
state[e] = "drive"
end 
end

elseif state[e] == "drive" then 
new_y = math.rad(g_Entity[e]['angley'])
pos_x = g_Entity[e]['x'] + (math.sin(new_y) * pos_mod[e])
pos_z = g_Entity[e]['z'] + (math.cos(new_y) * pos_mod[e])
SetFreezePosition(pos_x,g_Entity[e]['y']+pos_y[e],pos_z)
TransportToFreezePositionOnly()
if g_KeyPressW == 1 then 
if speed[e] < max_speed[e] then 
speed[e] = speed[e] + acceleration[e] 
else 
speed[e] = max_speed[e] 
end 
elseif g_KeyPressS == 1 then 
if speed[e] > min_speed[e] then 
speed[e] = speed[e] - acceleration[e] 
else 
speed[e] = min_speed[e] 
end 
else 
if speed[e] > 0 then 
speed[e] = speed[e] - decceleration[e] 
elseif speed[e] < 0 then 
speed[e] = speed[e] + decceleration[e] 
end 
end

CollisionOff(e)
new_y = math.rad(g_Entity[e]['angley'])
pos_x = g_Entity[e]['x'] + (math.sin(new_y) * (speed[e]/10))
pos_z = g_Entity[e]['z'] + (math.cos(new_y) * (speed[e]/10))
posy = GetTerrainHeight(pos_x,pos_z)
SetPosition(e,pos_x,posy,pos_z)

if g_KeyPressA == 1 then 
SetRotation(e,g_Entity[e]['anglex'],g_Entity[e]['angley']-turn_speed[e],g_Entity[e]['anglez'])
elseif g_KeyPressD == 1 then 
SetRotation(e,g_Entity[e]['anglex'],g_Entity[e]['angley']+turn_speed[e],g_Entity[e]['anglez'])
end

if speed[e] > 0 - (max_speed[e]/10) and speed[e] < 0 + (max_speed[e]/10) then 
Prompt("Leave the gun? *E*")
else 
if GetTimer(e) > 50 then 
StartTimer(e)
for a = 1,9999 do 
if g_Entity[a] ~= nil then 
if ai_soldier_state[a] ~= nil then 
if g_Entity[a]['health'] > 0 then 
if (EntityLooking(e,a,impact_range[e],impact_angle[e]) == 1 and speed[e] > 0) or (EntityLooking(e,a,impact_range[e],360-impact_angle[e]) == 0 and GetDistance(e,a) < impact_range[e] and speed[e] < 0) then 
SetEntityHealth(a,0)
SetEntityRagdollForce(a,"head",g_Entity[a]['x']-g_Entity[e]['x'],10,g_Entity[a]['z']-g_Entity[e]['z'],math.random(math.abs(speed[e])*100,math.abs(speed[e])*150))
end
end 
end
end
end 
end
end

if g_KeyPressE == 1 and speed[e] > 0 - (max_speed[e]/10) and speed[e] < 0 + (max_speed[e]/10) and vpressed == 0 then 
vpressed = 1 
speed[e] = 0 
new_y = math.rad(g_Entity[e]['y'])
health[e] = g_PlayerHealth
pos_x = g_Entity[e]['x'] + (math.sin(new_y) * enter_range[e])
pos_z = g_Entity[e]['z'] + (math.cos(new_y) * enter_range[e])
SetFreezePosition(pos_x,GetTerrainHeight(pos_x,pos_y),pos_z)
--TransportToFreezePositionOnly()
CollisionOn(e)
SetPlayerHealth(old_health)
state[e] = "wait" 
end

if g_PlayerHealth < 1 then 
SetEntityHealth(e,0)
end

end

if g_KeyPressE == 0 then 
vpressed = 0 
end

end

function vehicle_gunner_exit(e)

end

function PlayerLooking(e,dis,v)
if g_Entity[e] ~= nil then
if dis == nil then
dis = 3000
end
if v == nil then
v = 0.5
end
if GetPlayerDistance(e) <= dis then
local destx = g_Entity[e]['x'] - g_PlayerPosX
local destz = g_Entity[e]['z'] - g_PlayerPosZ
local angle = math.atan2(destx,destz)
angle = angle * (180.0 / math.pi)

if angle <= 0 then
angle = 360 + angle
elseif angle > 360 then
angle = angle - 360
end
while g_PlayerAngY < 0 or g_PlayerAngY > 360 do
if g_PlayerAngY <= 0 then
g_PlayerAngY = 360 + g_PlayerAngY
elseif g_PlayerAngY > 360 then
g_PlayerAngY = g_PlayerAngY - 360
end
end
local L = angle - v
local R = angle + v
if L <= 0 then
L = 360 + L 
elseif L > 360 then
L = L - 360
end
if R <= 0 then
R = 360 + R
elseif R > 360 then
R = R - 360
end

if (L < R and math.abs(g_PlayerAngY) > L and math.abs(g_PlayerAngY) < R) then
return 1
elseif (L > R and (math.abs(g_PlayerAngY) > L or math.abs(g_PlayerAngY) < R)) then
return 1
else
return 0
end
else
return 0
end
end
end

function EntityLooking(e,t,dis,v)
if g_Entity[e] ~= nil and g_Entity[t] ~= nil then
if dis == nil then
dis = 3000
end
if v == nil then
v = 0.5
end
local destx = g_Entity[t]['x'] - g_Entity[e]['x']
local destz = g_Entity[t]['z'] - g_Entity[e]['z']
if math.sqrt((destx*destx)+(destz*destz)) <= dis then
local angle = math.atan2(destx,destz)
angle = angle * (180.0 / math.pi)
   
if angle <= 0 then
angle = 360 + angle
elseif angle > 360 then
angle = angle - 360
end
while g_Entity[e]['angley'] < 0 or g_Entity[e]['angley'] > 360 do
if g_Entity[e]['angley'] <= 0 then
g_Entity[e]['angley'] = 360 + g_Entity[e]['angley']
elseif g_Entity[e]['angley'] > 360 then
g_Entity[e]['angley'] = g_Entity[e]['angley'] - 360
end
end
local L = angle - v
local R = angle + v
if L <= 0 then
L = 360 + L 
elseif L > 360 then
L = L - 360
end
if R <= 0 then
R = 360 + R
elseif R > 360 then
R = R - 360
end
   
if (L < R and math.abs(g_Entity[e]['angley']) > L and math.abs(g_Entity[e]['angley']) < R) then
return 1
elseif (L > R and (math.abs(g_Entity[e]['angley']) > L or math.abs(g_Entity[e]['angley']) < R)) then
return 1
else
return 0
end
else
return 0
end
end
end

function GetDistance(e,v)
if g_Entity[e] ~= nil and g_Entity[e] ~= 0 and g_Entity[v] ~= nil and g_Entity[v] ~= 0 then
local disx = g_Entity[e]['x'] - g_Entity[v]['x']
local disz = g_Entity[e]['z'] - g_Entity[v]['z']
local disy = g_Entity[e]['y'] - g_Entity[v]['y']
return math.sqrt(disx^2 + disz^2 + disy^2)
end
end

+ Code Snippet

local enter_range = {}
local enter_angle = {}


local pos_mod = {}
local pos_y = {}
local pos_x = nil 
local pos_z = nil 
local posy = nil
local state = {}
local speed = {}
local max_speed = {}
local min_speed = {}
local turn_speed = {}
local acceleration = {}
local decceleration = {}
local impact_range = {}
local impact_angle = {}
local angle_mod = {}
local health = {}
local old_health = nil 

local vpressed = 0 
function vehicle_gunner_init(e)
enter_range[e] = 200 --how close player needs to be to mount the vehicle
enter_angle[e] = 35 --player looking at the vehicle (smaller = tighter angle)
pos_mod[e] = 60 --how far back/forward in the vehicle the player will be (negative value = backwards)
pos_y[e] = 20 --how high above/below the vehicle height the player will be 
max_speed[e] = 150 --top speed for the vehicle 
min_speed[e] = -20 --top reversing speed 
acceleration[e] = 2 --how quickly the vehicle gains speed (in reverse too) 
decceleration[e] = 1 --how quickly the vehicle slows down if player not pressing W or S 
turn_speed[e] = 2 --how quickly the vehicle turns 
impact_range[e] = 200 --when enemies will get run over 
impact_angle[e] = 20 --adjusts angle for when enemies will get run over (smaller value = narrow vehicle)
health[e] = 1000 --how much health to give vehicle (adjusts player health while in the vehicle)
angle_mod[e] = 0 --if you want the player to face a different direction (other than forward) when first entering the vehicle

state[e] = "wait"
speed[e] = 0 
end 

function vehicle_gunner_main(e)
if state[e] == "wait" then 
CollisionOn(e)
if PlayerLooking(e,enter_range[e],enter_angle[e]) == 1 then 
Prompt("Mount the gun? *E*")
if g_KeyPressE == 1 and vpressed == 0 then 
vpressed = 1 
old_health = g_PlayerHealth
SetPlayerHealth(health[e])
new_y = math.rad(g_Entity[e]['angley'])
pos_x = g_Entity[e]['x'] + (math.sin(new_y) * pos_mod[e])
pos_z = g_Entity[e]['z'] + (math.cos(new_y) * pos_mod[e])
SetFreezePosition(pos_x,g_Entity[e]['y']+pos_y[e],pos_z)
SetFreezeAngle(g_Entity[e]['anglex'],g_Entity[e]['angley']+angle_mod[e],g_Entity[e]['anglez'])
TransportToFreezePosition()
state[e] = "drive"
end 
end 

elseif state[e] == "drive" then 
new_y = math.rad(g_Entity[e]['angley'])
pos_x = g_Entity[e]['x'] + (math.sin(new_y) * pos_mod[e])
pos_z = g_Entity[e]['z'] + (math.cos(new_y) * pos_mod[e])
SetFreezePosition(pos_x,g_Entity[e]['y']+pos_y[e],pos_z)
TransportToFreezePositionOnly()
if g_KeyPressW == 1 then 
if speed[e] < max_speed[e] then 
speed[e] = speed[e] + acceleration[e] 
else 
speed[e] = max_speed[e] 
end 
elseif g_KeyPressS == 1 then 
if speed[e] > min_speed[e] then 
speed[e] = speed[e] - acceleration[e] 
else 
speed[e] = min_speed[e] 
end 
else 
if speed[e] > 0 then 
speed[e] = speed[e] - decceleration[e] 
elseif speed[e] < 0 then 
speed[e] = speed[e] + decceleration[e] 
end 
end 

CollisionOff(e)
new_y = math.rad(g_Entity[e]['angley'])
pos_x = g_Entity[e]['x'] + (math.sin(new_y) * (speed[e]/10))
pos_z = g_Entity[e]['z'] + (math.cos(new_y) * (speed[e]/10))
posy = GetTerrainHeight(pos_x,pos_z)
SetPosition(e,pos_x,posy,pos_z)

if g_KeyPressA == 1 then 
SetRotation(e,g_Entity[e]['anglex'],g_Entity[e]['angley']-turn_speed[e],g_Entity[e]['anglez'])
elseif g_KeyPressD == 1 then 
SetRotation(e,g_Entity[e]['anglex'],g_Entity[e]['angley']+turn_speed[e],g_Entity[e]['anglez'])
end 

if speed[e] > 0 - (max_speed[e]/10) and speed[e] < 0 + (max_speed[e]/10) then 
Prompt("Leave the gun? *E*")
else 
if GetTimer(e) > 50 then 
StartTimer(e)
for a = 1,9999 do 
if g_Entity[a] ~= nil then 
if ai_soldier_state[a] ~= nil then 
if g_Entity[a]['health'] > 0 then 
if (EntityLooking(e,a,impact_range[e],impact_angle[e]) == 1 and speed[e] > 0) or (EntityLooking(e,a,impact_range[e],360-impact_angle[e]) == 0 and GetDistance(e,a) < impact_range[e] and speed[e] < 0) then 
SetEntityHealth(a,0)
SetEntityRagdollForce(a,"head",g_Entity[a]['x']-g_Entity[e]['x'],10,g_Entity[a]['z']-g_Entity[e]['z'],math.random(math.abs(speed[e])*100,math.abs(speed[e])*150))
end
end 
end
end
end 
end
end

if g_KeyPressE == 1 and speed[e] > 0 - (max_speed[e]/10) and speed[e] < 0 + (max_speed[e]/10) and vpressed == 0 then 
vpressed = 1 
speed[e] = 0 
new_y = math.rad(g_Entity[e]['y'])
health[e] = g_PlayerHealth
pos_x = g_Entity[e]['x'] + (math.sin(new_y) * enter_range[e])
pos_z = g_Entity[e]['z'] + (math.cos(new_y) * enter_range[e])
SetFreezePosition(pos_x,GetTerrainHeight(pos_x,pos_y),pos_z)
--TransportToFreezePositionOnly()
CollisionOn(e)
SetPlayerHealth(old_health)
state[e] = "wait" 
end 

if g_PlayerHealth < 1 then 
SetEntityHealth(e,0)
end 

end 

if g_KeyPressE == 0 then 
vpressed = 0 
end 

end 

function vehicle_gunner_exit(e)

end 


function PlayerLooking(e,dis,v)
if g_Entity[e] ~= nil then
if dis == nil then
dis = 3000
end
if v == nil then
v = 0.5
end
if GetPlayerDistance(e) <= dis then
local destx = g_Entity[e]['x'] - g_PlayerPosX
local destz = g_Entity[e]['z'] - g_PlayerPosZ
local angle = math.atan2(destx,destz)
angle = angle * (180.0 / math.pi)

if angle <= 0 then
angle = 360 + angle
elseif angle > 360 then
angle = angle - 360
end
while g_PlayerAngY < 0 or g_PlayerAngY > 360 do
if g_PlayerAngY <= 0 then
g_PlayerAngY = 360 + g_PlayerAngY
elseif g_PlayerAngY > 360 then
g_PlayerAngY = g_PlayerAngY - 360
end
end
local L = angle - v
local R = angle + v
if L <= 0 then
L = 360 + L 
elseif L > 360 then
L = L - 360
end
if R <= 0 then
R = 360 + R
elseif R > 360 then
R = R - 360
end

if (L < R and math.abs(g_PlayerAngY) > L and math.abs(g_PlayerAngY) < R) then
return 1
elseif (L > R and (math.abs(g_PlayerAngY) > L or math.abs(g_PlayerAngY) < R)) then
return 1
else
return 0
end
else
return 0
end
end
end

function EntityLooking(e,t,dis,v)
if g_Entity[e] ~= nil and g_Entity[t] ~= nil then
if dis == nil then
dis = 3000
end
if v == nil then
v = 0.5
end
local destx = g_Entity[t]['x'] - g_Entity[e]['x']
local destz = g_Entity[t]['z'] - g_Entity[e]['z']
if math.sqrt((destx*destx)+(destz*destz)) <= dis then
local angle = math.atan2(destx,destz)
angle = angle * (180.0 / math.pi)
   
if angle <= 0 then
angle = 360 + angle
elseif angle > 360 then
angle = angle - 360
end
while g_Entity[e]['angley'] < 0 or g_Entity[e]['angley'] > 360 do
if g_Entity[e]['angley'] <= 0 then
g_Entity[e]['angley'] = 360 + g_Entity[e]['angley']
elseif g_Entity[e]['angley'] > 360 then
g_Entity[e]['angley'] = g_Entity[e]['angley'] - 360
end
end
local L = angle - v
local R = angle + v
if L <= 0 then
L = 360 + L 
elseif L > 360 then
L = L - 360
end
if R <= 0 then
R = 360 + R
elseif R > 360 then
R = R - 360
end
   
if (L < R and math.abs(g_Entity[e]['angley']) > L and math.abs(g_Entity[e]['angley']) < R) then
return 1
elseif (L > R and (math.abs(g_Entity[e]['angley']) > L or math.abs(g_Entity[e]['angley']) < R)) then
return 1
else
return 0
end
else
return 0
end
end
end

function GetDistance(e,v)
if g_Entity[e] ~= nil and g_Entity[e] ~= 0 and g_Entity[v] ~= nil and g_Entity[v] ~= 0 then
local disx = g_Entity[e]['x'] - g_Entity[v]['x']
local disz = g_Entity[e]['z'] - g_Entity[v]['z']
local disy = g_Entity[e]['y'] - g_Entity[v]['y']
return math.sqrt(disx^2 + disz^2 + disy^2)
end
end

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bluemeenie195

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Posted: 24th May 2020 02:35

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In the FPE file see if there is " fixnewy= " listed. if not add it to the FPE file

Add different values to the fixnewy = like 90 or, 180.

That hopefully might straighten out the four wheeler.

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bluemeenie195

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Posted: 24th May 2020 02:55

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I had to change the fixnewy= in the FPE file for this snowmobile to fixnewy=180. originally it was riding backwards.

Once you get it straight then you can fine tune it in the smallg vehicle gunner script.

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miltonmdq

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Posted: 24th May 2020 03:15

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Thanks for the response! that will fix some problems but the quad entity does not collide with the buildings instead of colliding it pierces them

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bluemeenie195

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Posted: 24th May 2020 11:40

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Unfortunately that is true with the script.

Hopefully the script will be updated with GGmax to see buildings, tree's etc...

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AmenMoses

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Posted: 24th May 2020 14:22

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That's because the script is moving the entity around explicitly using the SetPosition command so it is not under the control of the physics engine.

So you have to add your own collision detection, the simplest way of doing this is to add ray casting commands firing in the direction of travel to detect any objects that might be present.

Btw that is a very old script by the look of it, it is using the old ai states so it wouldn't work with the new ai modules. (plus it is really ugly

)

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Posted: 24th May 2020 17:15 Edited at: 24th May 2020 17:16

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Attached is a rewritten version of your script, much prettier.

See how this one works for you.

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miltonmdq

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Posted: 24th May 2020 22:13

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thank you Amenmoses for the respones, now the entity is crazy LOL

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Posted: 25th May 2020 00:34 Edited at: 25th May 2020 00:39

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That's because the player capsule is fighting with the entity, both are trying to occupy the same space.

In the script raise the y = 60 value in the pos_mod list until it stops doing that.

You may find that the player sits too high on the vehicle when you do that, no simple cure for that apart from either turning off physics on the object (in which case it will penetrate buildings and stuff) or have two entities, one which you attach the script to and is a small flat invisible object with physics on for the player to stand on and a second to be the vehicle body which is visible but has physics off.
The second, body, object simply needs to be positioned every frame at the same location and orientation as the first.

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bluemeenie195

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Posted: 25th May 2020 00:49

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Thanks AmenMoses for the updated script. works great.

I've always liked this smallg script. A lot of setting options to work with all types of vehicles.

Putting raycasting in is way above my skill level. That would be awesome though.

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AmenMoses

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Posted: 25th May 2020 01:44

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It's not rocket science, basically just work out which way the entity is pointing and cast rays in the direction of travel, if there is anything there simply set speed to zero so it stops moving.

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miltonmdq

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Posted: 25th May 2020 02:22

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Damn, i was change the script Y until 400 and continues doing that

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Posted: 25th May 2020 13:26

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What collision mode does your model use and what are your parameter settings for it?

Make sure issimobile=no.

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miltonmdq

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Posted: 25th May 2020 17:58

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Is using polygonal and yes is non static and innmobile off always active, whats the problem?

did u tested that script?

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Posted: 25th May 2020 20:07

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Yes, worked fine with a stock entity, think I used a flat slab from the fixtures

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miltonmdq

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Posted: 25th May 2020 20:15

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could you help me with a working model please?

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GubbyBlips

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Posted: 26th May 2020 04:30

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I thought collision worked back after the September 19 build? At least I'm certain
that I had something using GG collision (with MoveForward) then. I was amazed to
see functioning collision- no doubt!

On a completely different note-- since you shouldn't even need it.........
oldx-newx
oldz-newz
That is the ancient nomads secret to computing the "direction of travel"
But like AmenMoses will tell us-- that is ugly red neck method!

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miltonmdq

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Posted: 26th May 2020 17:37

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so whats the solution?

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AmenMoses

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Posted: 26th May 2020 19:43

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Solution to what?

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Posted: 26th May 2020 20:00

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to make collision on the vehicle gunner script with no actin crazy entity

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AmenMoses

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Posted: 26th May 2020 20:47

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I already told you, use a stock entity like a slab from the fixtures folder and add the script to that (with physics on) then write a script to attach to your quad which will make it follow the slab entity around (i.e. just position it at the same place) and have physics off on the quad.

Is the quad scaled btw? GG can't handle physics properly on scaled entities so you have to make sure they are scaled properly before importing them.

Been there, done that, got all the T-Shirts!

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Scripts / Vehicle Gunner problem

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