irrlicht/scene.scm

   1 ;;; guile-irrlicht --- FFI bindings for Irrlicht Engine
   2 ;;; Copyright (C) 2020 Javier Sancho <jsf@jsancho.org>
   3 ;;;
   4 ;;; This file is part of guile-irrlicht.
   5 ;;;
   6 ;;; Guile-irrlicht is free software; you can redistribute it and/or modify
   7 ;;; it under the terms of the GNU Lesser General Public License as
   8 ;;; published by the Free Software Foundation; either version 3 of the
   9 ;;; License, or (at your option) any later version.
  10 ;;;
  11 ;;; Guile-irrlicht is distributed in the hope that it will be useful, but
  12 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
  13 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 ;;; General Public License for more details.
  15 ;;;
  16 ;;; You should have received a copy of the GNU Lesser General Public
  17 ;;; License along with guile-irrlicht.  If not, see
  18 ;;; <http://www.gnu.org/licenses/>.
  19
  20
  21 (define-module (irrlicht scene)
  22   #:use-module (oop goops)
  23   #:use-module (ice-9 optargs)
  24   #:use-module (irrlicht base)
  25   #:use-module (irrlicht foreign)
  26   #:use-module (irrlicht io)
  27   #:use-module (irrlicht irr)
  28   #:use-module (irrlicht video))
  29
  30
  31 ;; IMesh
  32 (define-class <mesh> (<reference-counted>)
  33   (irr-class #:init-value "IMesh"))
  34
  35 (export <mesh>)
  36
  37
  38 ;; IAnimatedMesh
  39 (define-class <animated-mesh> (<mesh>)
  40   (irr-class #:init-value "IAnimatedMesh"))
  41
  42 (export <animated-mesh>)
  43
  44
  45 ;; ISceneNodeAnimator
  46 (define-class <scene-node-animator> (<attribute-exchanging-object> <event-receiver>)
  47   (irr-class #:init-value "ISceneNodeAnimator"))
  48
  49 (export <scene-node-animator>)
  50
  51
  52 ;; ISceneManager
  53 (define-class <scene-manager> (<reference-counted>)
  54   (irr-class #:init-value "ISceneManager"))
  55
  56 (define-method (add-animated-mesh-scene-node! (scene-manager <scene-manager>)
  57                                               (mesh <animated-mesh>)
  58                                               . rest)
  59   (let-keywords rest #f
  60         ((parent (make <scene-node>))
  61          (id -1)
  62          (position '(0 0 0))
  63          (rotation '(0 0 0))
  64          (scale '(1 1 1))
  65          (also-add-if-mesh-pointer-zero #f))
  66     (make <animated-mesh-scene-node>
  67       #:irr-pointer
  68       ((get-irrlicht-proc "addAnimatedMeshSceneNode" scene-manager parent)
  69        scene-manager
  70        mesh
  71        parent
  72        id
  73        position
  74        rotation
  75        scale
  76        also-add-if-mesh-pointer-zero))))
  77
  78 (define-method (add-camera-scene-node! (scene-manager <scene-manager>) . rest)
  79   (let-keywords rest #f
  80         ((parent (make <scene-node>))
  81          (position '(0 0 0))
  82          (lookat '(0 0 100))
  83          (id -1)
  84          (make-active #t))
  85     (make <camera-scene-node>
  86       #:irr-pointer
  87       ((get-irrlicht-proc "addCameraSceneNode" scene-manager parent)
  88        scene-manager
  89        parent
  90        position
  91        lookat
  92        id
  93        make-active))))
  94
  95 (define-method (add-camera-scene-node-fps! (scene-manager <scene-manager>) . rest)
  96   (let-keywords rest #f
  97         ((parent (make <scene-node>))
  98          (rotate-speed 100)
  99          (move-speed 0.5)
 100          (id -1)
 101          (key-map-array (make <key-map>))
 102          (key-map-size 0)
 103          (no-vertical-movement #f)
 104          (jump-speed 0)
 105          (invert-mouse #f)
 106          (make-active #t))
 107     (let ((addCameraSceneNodeFPS (get-irrlicht-proc "addCameraSceneNodeFPS"
 108                                                     scene-manager parent)))
 109       (make <camera-scene-node>
 110         #:irr-pointer
 111         (addCameraSceneNodeFPS scene-manager #:parent parent #:rotate-speed rotate-speed
 112                                #:move-speed move-speed #:id id #:key-map-array key-map-array
 113                                #:key-map-size key-map-size
 114                                #:no-vertical-movement no-vertical-movement
 115                                #:jump-speed jump-speed #:invert-mouse invert-mouse
 116                                #:make-active make-active)))))
 117
 118 (define-method (add-custom-scene-node! (scene-manager <scene-manager>) proc-render
 119                                        proc-get-bounding-box  proc-get-material-count
 120                                        proc-get-material . rest)
 121   (let-keywords rest #f
 122         ((parent (make <scene-node>))
 123          (id -1)
 124          (position '(0 0 0))
 125          (rotation '(0 0 0))
 126          (scale '(1 1 1)))
 127     (let ((addCustomSceneNode (get-irrlicht-proc "addCustomSceneNode" scene-manager parent)))
 128       (make <scene-node>
 129         #:irr-pointer
 130         (addCustomSceneNode scene-manager proc-render proc-get-bounding-box proc-get-material-count
 131                             proc-get-material parent id position rotation scale)))))
 132
 133 (define-method (add-octree-scene-node! (scene-manager <scene-manager>)
 134                                        (mesh <animated-mesh>)
 135                                        . rest)
 136   (let-keywords rest #f
 137         ((parent (make <scene-node>))
 138          (id -1)
 139          (minimal-polys-per-node 512)
 140          (also-add-if-mesh-pointer-zero #f))
 141     (let ((addOctreeSceneNode (get-irrlicht-proc "addOctreeSceneNode" scene-manager parent mesh)))
 142       (make <mesh-scene-node>
 143         #:irr-pointer
 144         (addOctreeSceneNode scene-manager mesh parent id minimal-polys-per-node
 145                             also-add-if-mesh-pointer-zero)))))
 146
 147 (define-method (add-octree-scene-node! (scene-manager <scene-manager>)
 148                                        (mesh <mesh>)
 149                                        . rest)
 150   (let-keywords rest #f
 151         ((parent (make <scene-node>))
 152          (id -1)
 153          (minimal-polys-per-node 256)
 154          (also-add-if-mesh-pointer-zero #f))
 155     (let ((addOctreeSceneNode (get-irrlicht-proc "addOctreeSceneNode" scene-manager parent mesh)))
 156       (make <mesh-scene-node>
 157         #:irr-pointer
 158         (addOctreeSceneNode scene-manager mesh parent id minimal-polys-per-node
 159                             also-add-if-mesh-pointer-zero)))))
 160
 161 (define-method (create-rotation-animator (scene-manager <scene-manager>) rotation-speed)
 162   (let ((createRotationAnimator (get-irrlicht-proc "createRotationAnimator" scene-manager)))
 163     (make <scene-node-animator>
 164       #:irr-pointer
 165       (createRotationAnimator scene-manager rotation-speed))))
 166
 167 (define-method (draw-all (scene-manager <scene-manager>))
 168   ((get-irrlicht-proc "drawAll" scene-manager)
 169    scene-manager))
 170
 171 (define-method (get-mesh (scene-manager <scene-manager>) filename)
 172   (make <animated-mesh>
 173     #:irr-pointer
 174     ((get-irrlicht-proc "getMesh" scene-manager)
 175      scene-manager
 176      filename)))
 177
 178 (define-method (get-root-scene-node (scene-manager <scene-manager>))
 179   (let ((getRootSceneNode (get-irrlicht-proc "getRootSceneNode" scene-manager)))
 180     (make <scene-node> #:irr-pointer (getRootSceneNode scene-manager))))
 181
 182 (export <scene-manager> add-animated-mesh-scene-node! add-camera-scene-node!
 183         add-camera-scene-node-fps! add-custom-scene-node! add-octree-scene-node!
 184         create-rotation-animator draw-all get-root-scene-node get-mesh)
 185
 186
 187 ;; ISceneNode
 188 (define-class <scene-node> (<attribute-exchanging-object>)
 189   (irr-class #:init-value "ISceneNode"))
 190
 191 (define-method (add-animator! (node <scene-node>) (animator <scene-node-animator>))
 192   (let ((addAnimator (get-irrlicht-proc "addAnimator" node)))
 193     (addAnimator node animator)))
 194
 195 (define-method (get-absolute-transformation (node <scene-node>))
 196   (let ((getAbsoluteTransformation (get-irrlicht-proc "getAbsoluteTransformation" node)))
 197     (getAbsoluteTransformation node)))
 198
 199 (define-method (set-material-flag! (node <scene-node>) flag new-value)
 200   ((get-irrlicht-proc "setMaterialFlag" node)
 201    node
 202    flag
 203    new-value))
 204
 205 (define-method (set-material-texture! (node <scene-node>) texture-layer (texture <texture>))
 206   ((get-irrlicht-proc "setMaterialTexture" node)
 207    node
 208    texture-layer
 209    texture))
 210
 211 (define-method (set-position! (node <scene-node>) new-pos)
 212   (let ((setPosition (get-irrlicht-proc "setPosition" node)))
 213     (setPosition node new-pos)))
 214
 215 (export <scene-node> add-animator! get-absolute-transformation set-material-flag!
 216         set-material-texture! set-position!)
 217
 218
 219 ;; IAnimatedMeshSceneNode
 220 (define-class <animated-mesh-scene-node> (<scene-node>)
 221   (irr-class #:init-value "IAnimatedMeshSceneNode"))
 222
 223 (define-method (set-md2-animation! (node <animated-mesh-scene-node>) anim)
 224   ((get-irrlicht-proc "setMD2Animation" node)
 225    node
 226    anim))
 227
 228 (export <animated-mesh-scene-node> set-md2-animation!)
 229
 230
 231 ;; ICameraSceneNode
 232 (define-class <camera-scene-node> (<scene-node>)
 233   (irr-class #:init-value "ICameraSceneNode"))
 234
 235 (export <camera-scene-node>)
 236
 237
 238 ;; IMeshSceneNode
 239 (define-class <mesh-scene-node> (<scene-node>)
 240   (irr-class #:init-value "IMeshSceneNode"))
 241
 242 (export <mesh-scene-node>)