Home

TODO and completed features

#to_opengl - Converts to [1.0, 1.0, 1.0, 1.0] rgba format (as used by OpenGL).
.from_opengl - Creates new Color object from [1.0, 1.0, 1.0, 1.0] rgba format (as used by OpenGL).
#to_i - converts Color object into Gosu integer: 0xAARRGGBB

#draw - Added :shader hash option to choose optional shader to use.
#draw_rot - Added :shader hash option to choose optional shader to use.
#draw_as_points - Draw many sprites, with different x,y but otherwise identical.
[TODO] #flip!, #flip, #mirror!, #mirror, #scale!, #scale, etc.
[TODO] #resize (Well, create another image which is smaller/larger).
[TODO] #to_framebuffer

.back_buffer - Window-sized framebuffer for general use.
#post_process {} - Apply a shader (or shaders) to the contents of the block, after they have been drawn.
[TODO] #to_framebuffer - Copy the contents of the window as a {Ashton::Framebuffer}.
[TODO] #to_image - Create Gosu::Image from window contents.
[TODO] #draw_line - Added :shader hash option
[TODO] #draw_quad - Added :shader hash option
[TODO] #draw_triangle - Added :shader hash option

Wrapper around a GLSL shader program, which allows for complex, real-time, graphical manipulations.
#use {} - Inside the block, all draw operations are affected by the shader (Generally best to use Window#post_process or Image.draw* for this).
Supports vertex and fragment shaders. Geometry shaders would require OpenGL at a higher level.
Includes a small library of example shaders, which can be used to both affect individual draw actions or post-process the whole screen (:radial_blur, :pixelate, etc).

A source of illumination with radius and color. Generally easiest to use as part of a Lighting::Manager

Manages one or more LightSource objects and merges them to create a screen-sized lighting effect.
#create_light Creates a new light-source.

A relatively low-level graphics buffer that can be drawn onto and drawn onto the Window.
#use {} - Inside the block, draw operations go into the framebuffer, rather than onto the window.
#to_image - Convert to Gosu::Image.
#draw - Draw directly onto a Gosu::Window (Only accepts x, y coordinate).
#clear
#[x, y] - Get Gosu::Color of a specific pixel.
#transparent?(x, y) - true if the pixel at that point has alpha == 0 (useful for pixel-based collision). VERY FAST!
[TODO] #flip!, #flip - Invert framebuffer's vertical orientation.
[TODO] Support for stencils.
[TODO] Support RGB, RGBA, etc. (only RGBA currently).

Generates and managed particles with acceleration, gravity, velocity, angular velocity, direction, image, color, etc.
Particle velocity affected by acceleration and gravity, fade (affects alpha) and zoom (affects scale).
[TODO] Changes rgb color over time.