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 ;; ISceneManager
  46 (define-class <scene-manager> (<reference-counted>)
  47   (irr-class #:init-value "ISceneManager"))
  48
  49 (define-method (add-animated-mesh-scene-node! (scene-manager <scene-manager>)
  50                                               (mesh <animated-mesh>)
  51                                               . rest)
  52   (let-keywords rest #f
  53         ((parent (make <scene-node>))
  54          (id -1)
  55          (position '(0 0 0))
  56          (rotation '(0 0 0))
  57          (scale '(1 1 1))
  58          (also-add-if-mesh-pointer-zero #f))
  59     (make <animated-mesh-scene-node>
  60       #:irr-pointer
  61       ((get-irrlicht-proc "addAnimatedMeshSceneNode" scene-manager parent)
  62        scene-manager
  63        mesh
  64        parent
  65        id
  66        position
  67        rotation
  68        scale
  69        also-add-if-mesh-pointer-zero))))
  70
  71 (define-method (add-camera-scene-node! (scene-manager <scene-manager>) . rest)
  72   (let-keywords rest #f
  73         ((parent (make <scene-node>))
  74          (position '(0 0 0))
  75          (lookat '(0 0 100))
  76          (id -1)
  77          (make-active #t))
  78     (make <camera-scene-node>
  79       #:irr-pointer
  80       ((get-irrlicht-proc "addCameraSceneNode" scene-manager parent)
  81        scene-manager
  82        parent
  83        position
  84        lookat
  85        id
  86        make-active))))
  87
  88 (define-method (add-octree-scene-node! (scene-manager <scene-manager>)
  89                                        (mesh <animated-mesh>)
  90                                        . rest)
  91   (let-keywords rest #f
  92         ((parent (make <scene-node>))
  93          (id -1)
  94          (minimal-polys-per-node 512)
  95          (also-add-if-mesh-pointer-zero #f))
  96     (let ((addOctreeSceneNode (get-irrlicht-proc "addOctreeSceneNode" scene-manager parent mesh)))
  97       (make <mesh-scene-node>
  98         #:irr-pointer
  99         (addOctreeSceneNode scene-manager mesh parent id minimal-polys-per-node
 100                             also-add-if-mesh-pointer-zero)))))
 101
 102 (define-method (add-octree-scene-node! (scene-manager <scene-manager>)
 103                                        (mesh <mesh>)
 104                                        . rest)
 105   (let-keywords rest #f
 106         ((parent (make <scene-node>))
 107          (id -1)
 108          (minimal-polys-per-node 256)
 109          (also-add-if-mesh-pointer-zero #f))
 110     (let ((addOctreeSceneNode (get-irrlicht-proc "addOctreeSceneNode" scene-manager parent mesh)))
 111       (make <mesh-scene-node>
 112         #:irr-pointer
 113         (addOctreeSceneNode scene-manager mesh parent id minimal-polys-per-node
 114                             also-add-if-mesh-pointer-zero)))))
 115
 116 (define-method (draw-all (scene-manager <scene-manager>))
 117   ((get-irrlicht-proc "drawAll" scene-manager)
 118    scene-manager))
 119
 120 (define-method (get-mesh (scene-manager <scene-manager>) filename)
 121   (make <animated-mesh>
 122     #:irr-pointer
 123     ((get-irrlicht-proc "getMesh" scene-manager)
 124      scene-manager
 125      filename)))
 126
 127 (export <scene-manager> add-animated-mesh-scene-node! add-camera-scene-node! add-octree-scene-node!
 128         draw-all get-mesh)
 129
 130
 131 ;; ISceneNode
 132 (define-class <scene-node> (<attribute-exchanging-object>)
 133   (irr-class #:init-value "ISceneNode"))
 134
 135 (define-method (set-material-flag! (node <scene-node>) flag new-value)
 136   ((get-irrlicht-proc "setMaterialFlag" node)
 137    node
 138    flag
 139    new-value))
 140
 141 (define-method (set-material-texture! (node <scene-node>) texture-layer (texture <texture>))
 142   ((get-irrlicht-proc "setMaterialTexture" node)
 143    node
 144    texture-layer
 145    texture))
 146
 147 (export <scene-node> set-material-flag! set-material-texture!)
 148
 149
 150 ;; IAnimatedMeshSceneNode
 151 (define-class <animated-mesh-scene-node> (<scene-node>)
 152   (irr-class #:init-value "IAnimatedMeshSceneNode"))
 153
 154 (define-method (set-md2-animation! (node <animated-mesh-scene-node>) anim)
 155   ((get-irrlicht-proc "setMD2Animation" node)
 156    node
 157    anim))
 158
 159 (export <animated-mesh-scene-node> set-md2-animation!)
 160
 161
 162 ;; ICameraSceneNode
 163 (define-class <camera-scene-node> (<scene-node>)
 164   (irr-class #:init-value "ICameraSceneNode"))
 165
 166 (export <camera-scene-node>)
 167
 168
 169 ;; IMeshSceneNode
 170 (define-class <mesh-scene-node> (<scene-node>)
 171   (irr-class #:init-value "IMeshSceneNode"))
 172
 173 (export <mesh-scene-node>)