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My shot-gun won't move with the camera pivot

Blitz3D Forums/Blitz3D Beginners Area/My shot-gun won't move with the camera pivot

zortzblatz(Posted 2005) [#1]
UPDATE:
just so you all can see my code and make possible suggestions

;basically pointless
Graphics3D 800,600
SetBuffer BackBuffer()
;health
Global health = 100
Print "your health is " + health
;fired?
Global fired = False
Global speed = 4
;lighting
Global light = CreateLight()
RotateEntity light,90,0,0
LightColor light,0,0,0
;collision stuff
Global door = 3
Global player = 2
Global scene = 1
Global enemy = 4
;pivot stuff
Global pivot = CreatePivot()
EntityRadius pivot,1.5
;camera
Global camera = CreateCamera(pivot)
CameraRange camera,1,1000
CameraFogMode camera,1
CameraFogRange camera,60,200
EntityType pivot,player
;weapon
;left barrel
Global barrel1= CreateCylinder(32)
RotateEntity barrel1,90,0,0
EntityColor barrel1,128,128,128
PositionEntity barrel1,1.5,-1,2.5
EntityParent barrel1,pivot
ScaleEntity barrel1,0.2,2,0.2
EntityType barrel1,scene
EntityOrder barrel1,-2
;right barrel
Global barrel2 = CreateCylinder(32)
RotateEntity barrel2,90,0,0
EntityColor barrel2,128,128,128
PositionEntity barrel2,2,-1,2.5
EntityParent barrel2,pivot
ScaleEntity barrel2,0.2,2,0.2
EntityType barrel2,scene
EntityOrder barrel2,-1
;the sky
Global sky = CreateSphere(16,pivot)
FlipMesh sky
ScaleEntity sky,100,100,100
PositionEntity sky,0,50,0
EntityColor sky,0,0,255
;terrain
Global terrain = CreatePlane()
ScaleEntity terrain,3,15,3
PositionEntity terrain,0,0,-530
EntityRadius terrain,0.2
EntityColor terrain,0,255,0
EntityType terrain,scene
PositionEntity pivot,0,5,0
;trees?
stump = CreateCylinder()
ScaleEntity stump,1,7,1
PositionEntity stump,0,-1,30
EntityColor stump,128,64,0
EntityRadius stump,1
tree = CreateSphere(32)
EntityColor tree,0,100,0
ScaleEntity tree,3,4,3
PositionEntity tree,0,8,30
EntityType tree,scene
EntityRadius tree,3
stump2 = CreateCylinder()
ScaleEntity stump2,1,7,1
PositionEntity stump2,10,-1,30
EntityColor stump2,128,64,0
EntityRadius stump2,1
tree2 = CreateSphere(32)
EntityColor tree2,0,100,0
ScaleEntity tree2,3,4,3
PositionEntity tree2,10,8,30
EntityType tree2,scene
EntityRadius tree2,3
stump3 = CreateCylinder()
ScaleEntity stump3,1,7,1
PositionEntity stump3,-10,-1,30
EntityColor stump3,128,64,0
EntityRadius stump3,1
tree3 = CreateSphere(32)
EntityColor tree3,0,100,0
ScaleEntity tree3,3,4,3
PositionEntity tree3,-10,8,30
EntityType tree3,scene
EntityRadius tree3,3
;building?
bricks = CreateCube()
ScaleEntity bricks,19,9,9
PositionEntity bricks,0,9,50
EntityColor bricks,255,0,0
EntityType bricks,scene
;eves
eve = CreateCylinder(3)
RotateEntity eve,30,0,90
ScaleEntity eve,13,20,13
PositionEntity eve,0,23,50
EntityColor eve,145,72,0
;door
door = CreateCube()
ScaleEntity door,3,5,3
PositionEntity door,-6.5,5,43,7
EntityColor door,170,85,0
;knob of door
knob = CreateSphere()
ScaleEntity knob,0.8,0.8,0.8
PositionEntity knob,-5,5,40
EntityColor knob,255,255,0
;the great purple googler!
googler = CreateSphere(32)
ScaleEntity googler,4,4,4
PositionEntity googler,30,5,10
EntityColor googler,128,0,255
EntityType googler,enemy
EntityRadius googler,4
EntityAlpha googler,0.7
;ammunition
bullet = CreateSphere()
ScaleEntity bullet,0.2,0.2,0.2
PositionEntity bullet,7,5,2
;RotateEntity bullet,90,0,0
RotateEntity bullet,EntityPitch(pivot),EntityYaw(pivot),EntityRoll(pivot)
HideEntity bullet
EntityRadius bullet,1
;explode
boom = CreateSphere()
EntityColor boom,255,0,0
EntityAlpha boom,0.5
HideEntity boom
;collisions
Collisions player,scene,2,1
Collisions enemy,player,1,1
Collisions player,enemy,2,1
Collisions enemy,scene,2,1
;loopieness
While Not KeyHit(1)
If KeyDown(200) MoveEntity pivot,0,0,1
If KeyDown(208) MoveEntity pivot,0,0,-1
If KeyDown(203) TurnEntity pivot,0,2,0
If KeyDown(205) TurnEntity pivot,0,-2,0
;shooting now!
If KeyDown(57)
If Not fired
fired = True
PositionEntity bullet,EntityX(pivot) ,EntityY(pivot)-.5 ,EntityZ(pivot)
RotateEntity bullet,EntityPitch(pivot),EntityYaw(pivot),EntityRoll(pivot)
ShowEntity bullet
End If
End If
If fired
MoveEntity bullet,0,0,speed
boomx# = EntityX(bullet,1)
boomy# = EntityY(bullet,1)
boomz# = EntityZ(bullet,1)

HideEntity boom
ShowEntity bullet
PositionEntity boom,boomx,boomy,boomz
End If



If EntityDistance(bullet,pivot) >100
HideEntity bullet
fired = False
End If

;googler movement
MoveEntity googler,0,0,0.4
TurnEntity googler,0,1.6,0
UpdateWorld
RenderWorld
Flip
Wend
End

Function lose()
Cls
Print "YOU LOSE"
End Function


puki(Posted 2005) [#2]
Amend
'Global barrel1= CreateCylinder(16,pivot)'
to
Global barrel1= CreateCylinder(16)

After positioning it use (after your 'PositionEntity' command) add:
EntityParent barrel1,pivot

p.s. you will have to reposition the barrel
PositionEntity barrel1,2.5,-1,2.5
will move it into view - then just adjust accordingly.

EDIT:

;left barrel
Global barrel1= CreateCylinder(16)
RotateEntity barrel1,90,0,0
EntityColor barrel1,128,128,128
PositionEntity barrel1,1.5,-1,2.5
EntityParent barrel1,pivot
ScaleEntity barrel1,0.2,2,0.2
EntityType barrel1,player
EntityOrder barrel1,-2
;right barrel
Global barrel2 = CreateCylinder(16)
RotateEntity barrel2,90,0,0
EntityColor barrel2,128,128,128
PositionEntity barrel2,2,-1,2.5
EntityParent barrel2,pivot
ScaleEntity barrel2,0.2,2,0.2
EntityType barrel2,player
EntityOrder barrel2,-1


EDIT:

ps, it is not important to put the 'EntityParent' command after you have positioned the barrel, etc - I just do it that way - you could do it after creating the barrel. I just tend to position and then parent.


Rubiks14(Posted 2005) [#3]
i found a flaw with the collisions because i was playing around with it because i thought it was cool and noticed when the "shotgun" hits the trees it is pushed back and can end up behind the camera. i don't know why it does that or how to fix it but i thought i would let you know


zortzblatz(Posted 2005) [#4]
I fixed the collision problem by making the shotguns type scene instead of player, I also added toon shading, now I will add shooting and enemy


Beaker(Posted 2005) [#5]
Another (better?) way to handle a first person weapon is to render it to a seperate (faraway) camera after you have drawn the rest of the scene.

Look-up CameraClsMode.

This also helps you have better control/handling of the z-buffer.


zortzblatz(Posted 2005) [#6]
I've updated the origional source code because now I'm having another problem, if you crash into the googler he is solid but if he crashes into you he isn't I have no idea whats causing this shouldnt setting the collisions both ways fix it?


puki(Posted 2005) [#7]
Amend
Collisions enemy,player,2,1

to
Collisions enemy,player,1,1


EDIT:

Now you need to set up collisons for the 'googler' and the scenery - unless he is 'ghost-like' and meant to pass through the trees.


zortzblatz(Posted 2005) [#8]
Thank you again Puki.
I updated the code again, I'm open to suggestions, I need to add collision between the bullet and the various things in the level. also I need to add the collision between the player and the googler. I will most likely do that in a couple of hours.


_PJ_(Posted 2005) [#9]

i found a flaw with the collisions because i was playing around with it because i thought it was cool and noticed when the "shotgun" hits the trees it is pushed back and can end up behind the camera. i don't know why it does that or how to fix it but i thought i would let you know



There is a recursive flag that will give child entities the collision properties of their parents, however, if the Children do not interact with the collision at the same time, they can be 'nudged' around the parent changing their Locally-relative positions.