/*
 * Engine initialisation
 */

M8E_INIT()
    // Initialise the engine
M8E_INIT_DRIVER(int engine)
    // Initialise the engine with a specific driver, EDT_OPENGL, EDT_DIRECT3D8, EDT_DIRECT3D9
M8E_FREE()
    // The engine frees completely from the system resources
int M8E_GETDRIVER()
    // Returns the current driver being used,
    // returns one of the same values that M8E_INIT_DRIVER() takes

/*
 * Miscellaneous crap
 */

? M8E_SETVIEWPORT(int view_pos_from_left, int view_pos_from_top, int view_width, int view_height)
    // Similar to defining regions in DIV/Fenix. This lets you set the size of the "window"
    // that will be rendered at the next call to M8E_RENDER. Width and height, and the coords
    // of the top-left corner. Multiple viewports appear to be broken. (As per test14.prg)
? M8E_SCRSHOT(string path)
    // Saves a jpg screenshot of the current view to the path defined.
int M8E_GETDISTANCE(model_1, model_2)
   // Get the distance between two models, or nodes. Not sure what the coordinate system actually is, but it's an integer based one.
? M8E_SETSTRPARAM(string parameter name, string value)
   // Lets you set some internal variables to other values. Not sure what kind of values...
? M8E_CLEARSCENE()
   // Removes all models and textures from the current scene
? M8E_SETAMBIENTLIGHT(int alpha, int red, int green, int blue)
   // Sets the global illumination of the current scene.
? M8E_SETFOG(int red, int green, int blue, int begin_distance, int falloff)
   // Set's the fog of the current scene.
M8E_SETTEXTFLAG(int flag, bool state)
   // Seems to set some sort of flags that relate to loading textures. Set them before
   // loading textures, takes true/false. The only ones I've seen are ETCF_OPTIMIZED_FOR_SPEED
   // and ETCF_CREATE_MIP_MAPS
M8E_MODELREMOVE(int model)
   // Take a model or node out of the scene
node_obj M8E_ADDSKYBOX(tex_obj up, tex_obj down, tex_obj left, tex_obj right, tex_obj front, tex_obj back)
   // Creates a skybox, all of the parameters are pointers to loaded textures returned
   // by M8E_LOADTEXTURE. Returns the skybox model.
tex_obj M8E_LOADTEXTURE(string image_path)
   // Loads a texture from a path and returns the pointer to it.
   // Formats are psd, jpg, png, tga, pcx, bmp.

/*
 * Animations
 */

anim_obj M8E_ADDANIMCIRCLE(node_obj model, int centre_x, int centre_y, int centre_z, int radius, float speed)
   // Automates models moving in a circular movement around a mid-point.
   // For some reason. How do you change the axis?
anim_obj M8E_ADDANIMLINE(node_obj model, int start_x, int start_y, int start_y, int end_x, int end_y, int end_z, int time_taken, bool loop)
   // Moves an object between two given points. time_taken in miliseconds. Looping just
   // makes it do the animation again, it doesn't snap back.
anim_obj M8E_ADDANIMROTATION(obj_node model, int x_axis_speed, int y_axis_speed, int z_axis_speed)
   // Rotates an object around a specified axis.  
anim_obj M8E_ADDANIMTEXTURES(obj_node model, tex_arr_obj texture_list, int change_time, bool loop)
   // Makes a model change it's texture given a list. Ex:
   // tex_list = M8E_ADDTEXTURELIST();
   // M8E_TEXTURELISTADD(tex_list, M8E_LOADTEXTURE("blah.jpg"));
   // M8E_TEXTURELISTADD(tex_list, M8E_LOADTEXTURE("blah2.jpg"));
   // animation = M8E_ANIMTEXTURES(mymodel, tex_list, 500, true);
   // That will make mymodel change it's texture every 500 miliseconds from blah.jpg to blah2.jpg.
tex_arr_obj M8E_ADDTEXTURELIST()
   // Creates a texture array for M8E_ANIMTEXTURES.
M8E_TEXTURELISTADD(tex_arr_obj texture_list, obj_tex texture)
   // Adds a texture to the texture animate list for M8E_ANIMTEXTURES.
anim_obj, M8E_ADDANIMDELETE(obj_node model, int time)
   // Will remove the model after the specified amount of time in milliseconds.
anim_obj M8E_ADDANIMPOINTS(obj_node model, points_arr list, float speed, float closeness)
   // Moves an object along a spline given the points like M8E_ADDANIMTEXTURES. Ex:
   // point_list = M8E_ADDPOINTLIST();
   // M8E_POINTLISTADD(point_list, 10, 10, 10);
   // M8E_POINTLISTADD(point_list, 10, 15, 30);
   // M8E_POINTLISTADD(point_list, 10, 5, 50);
   // M8E_ADDANIMPOINTS(model, point_list, 1, 0.5);
   // Creates a spline of three points and moves the object smoothly across it.
points_arr M8E_ADDPOINTLIST()
   // Creates and returns point list for M8E_ADDANIMPOINTS.
M8E_POINTLISTADD(points_arr, int x, int y, int z)
   // Adds a point to the point list for M8E_ADDANIMPOINTS.
M8E_MODELREMOVEANIM

/*
 * Collision system
 */

M8E_ADDCOLTERRAIN
M8E_ADDCOLMAP
M8E_ADDCOLBBOX
M8E_ADDANIMCOL
M8E_RAYCOL
M8E_ADDCOLLIST
M8E_COLLISTADD
M8E_ADDSCNCOL
M8E_GETMODELFROMCAM
M8E_GETMODELFROMRAY
M8E_GETMODELFROM2DPOS
M8E_GETPOS2DFROM3DPOS
M8E_SCREENEXIST
M8E_RENDER
M8E_OPTIONEXIST
M8E_LOADSCN
M8E_ADDZIPFILE

/*
 * Model and object loading
 */

M8E_LOADTERRAIN
M8E_LOADMATRIX
M8E_LOADWATER
M8E_LOADANIMODEL
M8E_LOADMODELEX
M8E_LOADCUBEMODEL
M8E_LOADSPHEREMODEL
M8E_ANIMODEL
M8E_MODELANIMSPEED
M8E_MODELANIMSETFRAME
M8E_MODELANIMMD2
M8E_GETMODELANIMCURFRAME
M8E_MODELSETMATERIAL
M8E_LOADTEXMODEL
M8E_MODELADDCHILD
M8E_POSMODEL
M8E_GETPOSMODEL
M8E_MODELROTATION
M8E_GETROTMODEL
M8E_MODELSCALE
M8E_MODELVISIBLE
M8E_MODELMATTYPE

/*
 * Camera stuff
 */

M8E_GETACTIVECAM
M8E_SETACTIVECAM
M8E_GETCAMTARGET
M8E_ADDCAM
M8E_ADDCAMFOLLOW
M8E_CAMFOLLOWUPDATE
M8E_ADDCAMFPS
M8E_CAMTARGET
M8E_CAMSETFAR
M8E_CAMSETASPRATIO
M8E_CAMSETFOV
M8E_CAMSETNEAR
M8E_CAMSETUPVECTOR

/*
 * Lights
 */

M8E_ADDLIGHT

/*
 * Flat mode7/8 like sprites
 */

M8E_ADDBOARD
M8E_BOARDSIZE

/*
 * Text
 */

M8E_ADDTEXT
M8E_TEXTDRAW
M8E_TEXTCHANGE

/*
 * Images
 */

M8E_IMAGEDRAW

/*
 * GUI
 */

M8E_GUIREMOVE(int gui_item)
   // No real idea how to use these functions :what:
M8E_GUIMOVE
M8E_GUIADDFADER
M8E_GUIREMOVEALL

/*
 * Urm
 */

M8E_FADERINSET
M8E_FADEROUTSET
M8E_FADERREADY

/*
 * Particles
 */

M8E_ADDPARTICLE
M8E_PARTICLEADDBOXEMITTER
M8E_PARTICLEADDPOINTEMITTER
M8E_PARTICLEADDFADEOUTAFFECTOR
M8E_PARTICLEADDGRAVITYAFFECTOR
M8E_PARTICLESETSIZE

/*
 * Shaders
 */

M8E_ADDSHADER
M8E_ADDSHADERFILE

/*
 * Physics system
 */

M8E_PHYSINIT
M8E_PHYSADDMODEL
M8E_PHYSADDCUBE
M8E_PHYSADDCHARCONTROL
M8E_PHYSCHARCONTROLUPDATE
M8E_PHYSMATERIAL
M8E_PHYSADDCAR
M8E_PHYSCARUPDATE
M8E_PHYSADDFORCE
M8E_PHYSADDGLOBALFORCE
M8E_PHYSADDIMPULSE
M8E_PHYSADDLOCALFORCE
M8E_PHYSADDTORQUE
M8E_PHYSENABLE
M8E_PHYSANGULARDAMPING
M8E_PHYSLINEARDAMPING
M8E_PHYSOMEGA
M8E_PHYSBODYPOS
M8E_PHYSGETBODYPOS
M8E_PHYSBODYROT
M8E_PHYSGETBODYROT
M8E_PHYSTORQUE
M8E_PHYSVELOCITY
M8E_PHYSREMOVE
M8E_PHYSADDJOIN