Jump to content
Ultra Engine Community

L B

Members
 View Profile  See their activity

  • Posts

    967

  • Joined

  • Last visited

 Content Type 

Posts posted by L B

    C# Button Class

    in Programming

    Posted

    Here you go with a simple implementation of my OOP drawing system. It's a simple button class that can be used in any way you like. Call "Button.Update()" right before "Graphics.Flip()". Feel free to make a list that updates all of them, I'm simply sharing this class. Couldn't make it part of any other release, really.

     

    	public enum ButtonState
{
	Idle,
	Hover,
	Clicked,
	Down
}

public class Button
{
	public Texture IdleTexture { get; set; }
	public Texture HoverTexture { get; set; }
	public Texture ClickedTexture { get; set; }
	public Texture DownTexture { get; set; }

	public ButtonState State { get; private set; }
	public Image Image { get; private set; }

	public Button(Image image)
	{
		this.State = ButtonState.Idle;

		this.Image = image;

		this.IdleTexture = this.Image.Texture;
		this.ClickedTexture = this.Image.Texture;
		this.HoverTexture = this.Image.Texture;
		this.DownTexture = this.Image.Texture;
	}

	public void Update()
	{
		this.State = ButtonState.Idle;

		if (
			Mouse.X >= this.Image.X && 
			Mouse.Y >= this.Image.Y && 
			Mouse.X <= this.Image.X + this.Image.Width && 
			Mouse.Y <= this.Image.Y + this.Image.Height
			)
		{
			this.State = ButtonState.Hover;

			if (Mouse.ButtonDown(MouseButton.Left))
			{
				this.State = ButtonState.Down;
			}

			if (Mouse.ButtonHit(MouseButton.Left))
			{
				this.State = ButtonState.Clicked;
			}
		}

		switch (this.State)
		{
			case ButtonState.Clicked:
				this.Image.Texture = this.ClickedTexture;
				break;

			case ButtonState.Down:
				this.Image.Texture = this.DownTexture;
				break;

			case ButtonState.Hover:
				this.Image.Texture = this.HoverTexture;
				break;

			case ButtonState.Idle:
				this.Image.Texture = this.IdleTexture;
				break;
		}

		Drawing.SetBlend(BlendType.Alpha);
		this.Image.Draw();
		Drawing.SetBlend(BlendType.None);
	}	}

    Differences between C# and C++

    in Programming

    Posted

    I think the main point is C# has memory management which can make complex apps a lot easier. However, most third party libraries you will find are written in C++, so I am not sure what the point of using C# is. There are easier languages that are cross-platform compatible like Java and BlitzMax. I think C# is still Windows-only. There might be some workarounds, but since it is MS you know they are probably never going to put real effort into Linux and Mac.

     

    There are other people who know a lot more about C# than me, so take that with a grain of salt.

     

    Without any intent to be offensive, most of the things you said are obsolete or wrong.

    First of all, there are few third party libraries that you will need for C#, considering it's backed up by a completele framework. In other cases, I have always found what I needed as 3rdPL to make my application work.

    The easiness of a language is really subjective, so I won't comment on this. C# is not Windows only anymore, since Mono is out of Beta and DotGNU is coming along pretty nicely, as far as I know. I have run many applications on Linux, although I do not have a Mac to test.

    .NET Headers

    in Programming

    Posted

    Not to rip on you, but people want C# Source Code. I don't want to be responsible for a 3rd party DLL.

     

    Also, unless Josh has decided against it, you don't have to obfuscate your code. People can find their ways if they really want your code.

     

    Once the source is complete I'll post it, although a DLL can be used with any .NET language and is easier to integrate.

    If you don't obfuscate your code, this DLL gets distributed with your executable, and is just like giving away headers + engine.dll, which are the core of Leadwerks.

    GUI system design tips...

    in Programming

    Posted 

    xPos = ScreenWidth() / 4;

     

    So to transfer your value (0.25) to what could be used, use:

     

    int XPercentToPixel(float percent)
{
   return percent * ScreenWidth();
}

int YPercentToPixe(float percent)
{
   return percent * ScreenHeight();
}

     

    If you have an alpha channel in a DDS file you render to the screen, transparency will be enabled. You cannot have alpha programmed, as far as I know.

     

    I suggest using the OOP drawing approach in my C# wrapper, if that's not too much of a hassle for you. Porting is easy too. More information here.

    How would I attach a light to a model?

    in Programming

    Posted

    One way to do that is to use

     

    light:SetParent(model)

     

    light = your light entity and model = your model

    How would I access these objects? I just want to place my streetlamp entity and it already has the light on it. I copied the code from the point light script into the streetlamp script, and it works fine. I have a point light, but at the origin of the model, which is way too low.

     

    How would I go making "entity.light" move up?

    I tried "entity.light:Move(0, -2, 0)" but this doesn't work.

     

    dofile("Scripts/base.lua") -- We need the base class entity

function InitDialog(grid)
base_InitDialog(grid)
group=grid:AddGroup("Light")
group:AddProperty("Resolution",PROPERTY_CHOICE,"256,512,1024,2048")
group:AddProperty("linearoffset",PROPERTY_FLOAT,"0,1,2","Linear offset")
group:AddProperty("multoffset",PROPERTY_FLOAT,"0,1,2","Multiplicative offset")
group:AddProperty("Range",PROPERTY_FLOAT,"1,100,0")
group:Expand(1)
end

function Spawn(model)
local entity=base_Spawn(model)
entity.model=model
entity.light=CreatePointLight(10,model)
return entity
end

function GetKey( model, key, value )
local entity=entitytable[model]
if entity==nil then return value end
if entity.model==nil then return end
if entity.light==nil then
	return base_GetKey(model,key,value)
else
	if key=="linearoffset" then
		return entity.light:GetShadowOffset(0,0)--..","..entity.light:GetShadowOffset(0,1)..","..entity.light:GetShadowOffset(0,2)
	elseif key=="multoffset" then
		return entity.light:GetShadowOffset(1,0)--..","..entity.light:GetShadowOffset(1,1)..","..entity.light:GetShadowOffset(1,2)
	elseif key=="range" then
		return entity.light:GetRange()
	else
		return base_GetKey(model,key,value)
	end
end

end

function SetKey(model, key,value)
local entity=entitytable[model]
if entity==nil then return 1 end
if entity.model==nil then return 1 end
if entity.light==nil then
	base_SetKey(model,key,value)
else
	if key=="resolution" then
		if value=="0" then
			entity.light:SetShadowmapSize(256)
		elseif value=="1" then
			entity.light:SetShadowmapSize(512)
		elseif value=="2" then
			entity.light:SetShadowmapSize(1024)
		elseif value=="3" then
			entity.light:SetShadowmapSize(2048)
		end
	elseif key=="range" then
		entity.light:SetRange(value)
	elseif key=="shadowresolution" then
		resolution=entity.light:GetShadowmapSize()
		if resolution==256 then
			return 0
		elseif resolution==512 then
			return 1
		elseif resolution==1024 then
			return 2	
		elseif resolution==2048 then
			return 3
		else
			return -1
		end
	elseif key=="multoffset" then
		entity.light:SetShadowOffset(entity.light:GetShadowOffset(0,0),value,0)
	elseif key=="linearoffset" then
		entity.light:SetShadowOffset(value,entity.light:GetShadowOffset(1,0),0)
	else
		return base_SetKey(model,key,value)
	end
end
return 1
end

--[[

dofile("Scripts/baseclass.lua") -- We need the base class entity
dofile("Scripts/table.lua") -- We need the table.Inherit function

-- Set this script"s Entity table to an inherit of BaseClass"s entity table
EntityNew = { }
Entity = table.Inherit(EntityNew, Entity)

function Entity:Spawn(model)
if (model == nil) then Notify("Entity passed to Entity:Spawn is nil") end
Entity.BaseClass:Spawn(model)
-- Since the entity object is passed to the BaseCLass spawn, it is in Entity.BaseClass.model, we need to either remove the above line and uncomment the one below, or simply leave both
-- If you are wondering why Entity.model isn"t inherited at the top of the script when we called table.Inherit, it is because we had not yet defined an Entity.model variable
-- You will come to notice that variables we assign via BaseClass functions AFTER inheritence will not exist from this Entity scope. We can still access them via Entity.BaseClass.variablename
--Entity.model = Entity.BaseClass.model -- Hold onto you for later use and add it to this scope 
self.model = model
model:SetKey("intensity","1")
self.light = CreatePointLight(10,model)
self.speed=1.0
end

function Entity:SetKey(key,value)
if self.model==nil then return 1 end
if self.light==nil then
	self.BaseClass:SetKey(key,value)
else
	if key=="resolution" then
		if value=="0" then
			self.light:SetShadowmapSize(256)
		elseif value=="1" then
			self.light:SetShadowmapSize(512)
		elseif value=="2" then
			self.light:SetShadowmapSize(1024)
		elseif value=="3" then
			self.light:SetShadowmapSize(2048)
		end
	elseif key=="muloffset" then
		self.light:SetShadowOffset(0,tonumber(value),0)
	elseif key=="range" then
		self.light:SetRange(value)
	elseif key=="shadowresolution" then
		resolution=self.light:GetShadowmapSize()
		if resolution==256 then
			return 0
		elseif resolution==512 then
			return 1
		elseif resolution==1024 then
			return 2	
		elseif resolution==2048 then
			return 3
		else
			return -1
		end
	else
		return self.BaseClass:SetKey(key,value)
	end
end
return 1
end

function Entity:InitDialog(grid)
self.BaseClass:InitDialog(grid)
group=grid:AddGroup( "Light" )
group:AddProperty( "Resolution", "1|256,512,1024,2048", PROPERTY_CHOICE, "" )
group:AddProperty( "muloffset","|0,1,2",PROPERTY_FLOAT,"Mult offset" )
group:AddProperty( "range","|1,100,0",PROPERTY_FLOAT,"" )
group:Expand(1)
end

function Entity:ReceiveMessage(message,extra)
if message=="toggle" then
	if self.model:Hidden()==1 then
		self.model:Show()
	else
		self.model:Hide()
	end
else
end
end
]]--

Copyright © 2024 Ultra Software.
All rights reserved.
×
×
  • Create New...