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     (let* ((addAnimatedMeshSceneNode (get-irrlicht-proc "addAnimatedMeshSceneNode"
  67                                                         scene-manager
  68                                                         parent))
  69            (node (addAnimatedMeshSceneNode scene-manager mesh parent id position
  70                                            rotation scale also-add-if-mesh-pointer-zero)))
  71       (cond ((null-object? node)
  72              (error "In procedure add-animated-mesh-scene-node!: Scene node cannot be created"))
  73             (else
  74              node)))))
  75
  76 (define-method (add-camera-scene-node! (scene-manager <scene-manager>) . rest)
  77   (let-keywords rest #f
  78         ((parent (make <scene-node>))
  79          (position '(0 0 0))
  80          (lookat '(0 0 100))
  81          (id -1)
  82          (make-active #t))
  83     (let ((addCameraSceneNode (get-irrlicht-proc "addCameraSceneNode" scene-manager parent)))
  84       (addCameraSceneNode scene-manager parent position lookat id make-active))))
  85
  86 (define-method (add-camera-scene-node-fps! (scene-manager <scene-manager>) . rest)
  87   (let-keywords rest #f
  88         ((parent (make <scene-node>))
  89          (rotate-speed 100)
  90          (move-speed 0.5)
  91          (id -1)
  92          (key-map-array (make <key-map>))
  93          (key-map-size 0)
  94          (no-vertical-movement #f)
  95          (jump-speed 0)
  96          (invert-mouse #f)
  97          (make-active #t))
  98     (let ((addCameraSceneNodeFPS (get-irrlicht-proc "addCameraSceneNodeFPS"
  99                                                     scene-manager parent)))
 100       (addCameraSceneNodeFPS scene-manager #:parent parent #:rotate-speed rotate-speed
 101                              #:move-speed move-speed #:id id #:key-map-array key-map-array
 102                              #:key-map-size key-map-size
 103                              #:no-vertical-movement no-vertical-movement
 104                              #:jump-speed jump-speed #:invert-mouse invert-mouse
 105                              #:make-active make-active))))
 106
 107 (define-method (add-custom-scene-node! (scene-manager <scene-manager>) proc-render
 108                                        proc-get-bounding-box  proc-get-material-count
 109                                        proc-get-material . rest)
 110   (let-keywords rest #f
 111         ((parent (make <scene-node>))
 112          (id -1)
 113          (position '(0 0 0))
 114          (rotation '(0 0 0))
 115          (scale '(1 1 1)))
 116     (let ((addCustomSceneNode (get-irrlicht-proc "addCustomSceneNode" scene-manager parent)))
 117       (addCustomSceneNode scene-manager proc-render proc-get-bounding-box proc-get-material-count
 118                           proc-get-material parent id position rotation scale))))
 119
 120 (define-method (add-octree-scene-node! (scene-manager <scene-manager>)
 121                                        (mesh <animated-mesh>)
 122                                        . rest)
 123   (let-keywords rest #f
 124         ((parent (make <scene-node>))
 125          (id -1)
 126          (minimal-polys-per-node 512)
 127          (also-add-if-mesh-pointer-zero #f))
 128     (let ((addOctreeSceneNode (get-irrlicht-proc "addOctreeSceneNode" scene-manager parent mesh)))
 129       (addOctreeSceneNode scene-manager mesh parent id minimal-polys-per-node
 130                           also-add-if-mesh-pointer-zero))))
 131
 132 (define-method (add-octree-scene-node! (scene-manager <scene-manager>)
 133                                        (mesh <mesh>)
 134                                        . rest)
 135   (let-keywords rest #f
 136         ((parent (make <scene-node>))
 137          (id -1)
 138          (minimal-polys-per-node 256)
 139          (also-add-if-mesh-pointer-zero #f))
 140     (let ((addOctreeSceneNode (get-irrlicht-proc "addOctreeSceneNode" scene-manager parent mesh)))
 141       (addOctreeSceneNode scene-manager mesh parent id minimal-polys-per-node
 142                           also-add-if-mesh-pointer-zero))))
 143
 144 (define-method (add-sphere-scene-node! (scene-manager <scene-manager>) . rest)
 145   (let-keywords rest #f
 146         ((radius 5)
 147          (poly-count 16)
 148          (parent (make <scene-node>))
 149          (id -1)
 150          (position '(0 0 0))
 151          (rotation '(0 0 0))
 152          (scale '(1 1 1)))
 153     (let ((addSphereSceneNode (get-irrlicht-proc "addSphereSceneNode" scene-manager parent)))
 154       (addSphereSceneNode scene-manager radius poly-count parent id position rotation scale))))
 155
 156 (define-method (create-rotation-animator (scene-manager <scene-manager>) rotation-speed)
 157   (let ((createRotationAnimator (get-irrlicht-proc "createRotationAnimator" scene-manager)))
 158     (createRotationAnimator scene-manager rotation-speed)))
 159
 160 (define-method (draw-all (scene-manager <scene-manager>))
 161   ((get-irrlicht-proc "drawAll" scene-manager)
 162    scene-manager))
 163
 164 (define-method (get-mesh (scene-manager <scene-manager>) filename)
 165   (let* ((getMesh (get-irrlicht-proc "getMesh" scene-manager))
 166          (mesh (getMesh scene-manager filename)))
 167     (cond ((null-object? mesh)
 168            (error "In procedure get-mesh: Mesh cannot be created"))
 169           (else
 170            mesh))))
 171
 172 (define-method (get-root-scene-node (scene-manager <scene-manager>))
 173   (let ((getRootSceneNode (get-irrlicht-proc "getRootSceneNode" scene-manager)))
 174     (getRootSceneNode scene-manager)))
 175
 176 (export <scene-manager> add-animated-mesh-scene-node! add-camera-scene-node!
 177         add-camera-scene-node-fps! add-custom-scene-node! add-octree-scene-node!
 178         add-sphere-scene-node! create-rotation-animator draw-all get-root-scene-node get-mesh)
 179
 180
 181 ;; ISceneNode
 182 (define-class <scene-node> (<attribute-exchanging-object>)
 183   (irr-class #:init-value "ISceneNode"))
 184
 185 (define-method (add-animator! (node <scene-node>) (animator <scene-node-animator>))
 186   (let ((addAnimator (get-irrlicht-proc "addAnimator" node)))
 187     (addAnimator node animator)))
 188
 189 (define-method (get-absolute-transformation (node <scene-node>))
 190   (let ((getAbsoluteTransformation (get-irrlicht-proc "getAbsoluteTransformation" node)))
 191     (getAbsoluteTransformation node)))
 192
 193 (define-method (set-material-flag! (node <scene-node>) flag new-value)
 194   ((get-irrlicht-proc "setMaterialFlag" node)
 195    node
 196    flag
 197    new-value))
 198
 199 (define-method (set-material-texture! (node <scene-node>) texture-layer (texture <texture>))
 200   ((get-irrlicht-proc "setMaterialTexture" node)
 201    node
 202    texture-layer
 203    texture))
 204
 205 (define-method (set-position! (node <scene-node>) new-pos)
 206   (let ((setPosition (get-irrlicht-proc "setPosition" node)))
 207     (setPosition node new-pos)))
 208
 209 (export <scene-node> add-animator! get-absolute-transformation set-material-flag!
 210         set-material-texture! set-position!)
 211
 212
 213 ;; IAnimatedMeshSceneNode
 214 (define-class <animated-mesh-scene-node> (<scene-node>)
 215   (irr-class #:init-value "IAnimatedMeshSceneNode"))
 216
 217 (define-method (set-md2-animation! (node <animated-mesh-scene-node>) anim)
 218   ((get-irrlicht-proc "setMD2Animation" node)
 219    node
 220    anim))
 221
 222 (export <animated-mesh-scene-node> set-md2-animation!)
 223
 224
 225 ;; ICameraSceneNode
 226 (define-class <camera-scene-node> (<scene-node>)
 227   (irr-class #:init-value "ICameraSceneNode"))
 228
 229 (export <camera-scene-node>)
 230
 231
 232 ;; IMeshSceneNode
 233 (define-class <mesh-scene-node> (<scene-node>)
 234   (irr-class #:init-value "IMeshSceneNode"))
 235
 236 (export <mesh-scene-node>)