AddHook outside Sandbox

[Rekindled Phoenix]

As the title says, is it possible to add a Flip Hook inside the Script Editor that is NOT in the Sandbox? If so, could you post sample code?

[macklebee]

not sure if i understand the question... are you asking how to add a fliphook in a standalone lua program?

[Rekindled Phoenix]

Yes . Using the standalone Script Editor l want to be able to add a Fliphook. Seems i can only do this in the editor when overriding an object script. What gives?

[macklebee]

i assume its for doing 2d draw commands?

 

you can do them three ways...

1) just set the FlipHook function in the initial part of the program

function FlipHook() --or this works automatically without needing hooks.lua
SetBlend(1) 
SetColor(Vec4(1,0,0,0.25)) 
DrawText("hello",50,300)
SetColor(Vec4(1,1,1,1)) 
SetBlend(0) 
end

 

2) set a function with the hook command via "scripts/hooks" lua script

function DrawStuff()
SetBlend(1)
SetColor(Vec4(0,1,1,1))
DrawText("hello",0,300)
SetColor(Vec4(1,1,1,1))
SetBlend(0)
end
AddHook("Flip", DrawStuff)

 

3) and of course right before the Flip in the main loop

 

note that the FlipHook function doesnt play well with the AddHook's function in the standalone for some reason...

 

require("scripts/constants/engine_const")
require("scripts/hooks")
RegisterAbstractPath("")        
Graphics(800,600)        
fw=CreateFramework() 

fw.main.camera:SetPosition(Vec3(0,0,-2))
light=CreateSpotLight(10) 
light:SetRotation(Vec3(45,55,0)) 
light:SetPosition(Vec3(5,5,-5)) 

material=LoadMaterial("abstract::cobblestones.mat") 

mesh=CreateCube() 
mesh:Paint(material) 

ground=CreateCube() 
ground:SetScale(Vec3(10.0,1.0,10.0)) 
ground:SetPosition(Vec3(0.0,-2.0,0.0)) 
ground:Paint(material) 

light=CreateDirectionalLight() 
light:SetRotation(Vec3(45,45,45)) 

--add your own via hooks.lua
function DrawStuff()
SetBlend(1)
SetColor(Vec4(0,1,1,1))
DrawText("hello",0,300)
SetColor(Vec4(1,1,1,1))
SetBlend(0)
end
AddHook("Flip", DrawStuff)

--[[function FlipHook() --or this works automatically without needing hooks.lua
SetBlend(1) 
SetColor(Vec4(1,0,0,0.25)) 
DrawText("hello",50,300)
SetColor(Vec4(1,1,1,1)) 
SetBlend(0) 
end]]

while AppTerminate()==0 do 

if KeyHit(KEY_ESCAPE)==1 then
	break
end 

mesh:Turn(Vec3(AppSpeed()*0.5,AppSpeed()*0.5,AppSpeed()*0.5)) 

fw:Update()
fw:Render()
-- or just add the 2d drawcommands here
SetBlend(1)
SetColor(Vec4(0,0,1,1))
DrawText("something",100,300)
SetColor(Vec4(1,1,1,1))
SetBlend(0)
Flip(0)
end

[Rekindled Phoenix]

Thank you for the detailed response. Seems that my assumptions are correct in that the standalone script editor doesnt like add hook.

 

Should this be reported as a bug?

 

I will be able to test this further tonight. Thanks for your help macklebe

[macklebee]

Addhook in the standalone script or a object script works fine if there is no FlipHook() function in the standalone... but yeah the two together in the standalone do not play well together or a fliphook with an addhook in an object script... but to get around it you can just use an Addhook function in the standalone as well and it works with object scripts that have addhooks

[Rekindled Phoenix]

Got it to work!

 

Actually I wanted to draw an image on the screen, as a GUI. I discovered after some tweaking that the texture is only rendered if it is a multiple of 2, like the creation of DDS texture files.

 

Is there a way to re size them within the DrawImage() command, or is that OpenGL only ?