Washington

 

                                             source: The Guardian

Shaders!?

Using Love for 2d, one can introduce pixel shaders. These allow one to

do all kinds of color effects by coding directly to the graphics card!? 

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Below, the example Shaders code from the Love2d website. It's a 'Climb every

mountain' moment. The shader irself is coded in a language that is not Lua, but

OpenGl.

It is a C-family language (note the colon endings). The portion in orange below

is the stranger in the page: comments, and actual code. It is essentially telling

me that I have color code, and coordinates from a source image, coordinates of the

screen to work with to make my magic. An image - texture - in this context is

a color map!!

http://blogs.love2d.org/content/beginners-guide-shaders

Live & Learn

I was overjoyed to find a clean approach to a pause function

in the Breakout game code. My clumsy attempt to define one

in the Flappy Bird assignment left me forced to test for pause

in the update function. The right way to do it - entirely in the

PlayState update - kicks off with paused as true, otherwise return.

Moreover, I had to use 'enter' to go back to the game. Here, a new

tap on 'space' does the trick.

Neat!

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The love2d entry on local function is also worth reading. Comes down

to the fact that global functions are stored in a table while local ones

are in the stack.

https://love2d.org/wiki/local

More Love2d

 

With default "alpha" blend mode:

With "add" blend mode:

Getting the rectangle to move:

No Illusions

 I have no illusions; now that I know how to do this,

the industry is leaps and bounds ahead...🦹‍♀️

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Walker2

 I've redone the code on our Walker image, on the model

offered in the tutorial below. It's clear where the parameters are

in the code...

                        

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NY2021