From c930274575f832f6dc4b66bd6c3aff8865a5ea3f Mon Sep 17 00:00:00 2001
From: Milan Nikolic <gen2brain@gmail.com>
Date: Wed, 26 May 2021 00:10:52 +0200
Subject: [PATCH] Add new functions

---
 raylib/models.go | 16 ++++++++++++
 raylib/raylib.go | 68 ++++++------------------------------------------
 raylib/rlgl.go   |  5 ----
 3 files changed, 24 insertions(+), 65 deletions(-)

diff --git a/raylib/models.go b/raylib/models.go
index 68c80c4..fb04702 100644
--- a/raylib/models.go
+++ b/raylib/models.go
@@ -316,6 +316,22 @@ func UnloadMaterial(material Material) {
 	C.UnloadMaterial(*cmaterial)
 }
 
+// SetMaterialTexture - Set texture for a material map type (MATERIAL_MAP_DIFFUSE, MATERIAL_MAP_SPECULAR...)
+func SetMaterialTexture(material *Material, mapType int32, texture Texture2D) {
+	cmaterial := material.cptr()
+	cmapType := (C.int)(mapType)
+	ctexture := texture.cptr()
+	C.SetMaterialTexture(cmaterial, cmapType, *ctexture)
+}
+
+// SetModelMeshMaterial - Set material for a mesh
+func SetModelMeshMaterial(model *Model, meshId int32, materialId int32) {
+	cmodel := model.cptr()
+	cmeshId := (C.int)(meshId)
+	cmaterialId := (C.int)(materialId)
+	C.SetModelMeshMaterial(cmodel, cmeshId, cmaterialId)
+}
+
 // DrawModel - Draw a model (with texture if set)
 func DrawModel(model Model, position Vector3, scale float32, tint Color) {
 	cmodel := model.cptr()
diff --git a/raylib/raylib.go b/raylib/raylib.go
index 413031a..47d6788 100644
--- a/raylib/raylib.go
+++ b/raylib/raylib.go
@@ -706,9 +706,10 @@ const (
 	LocVertexTangent
 	LocVertexColor
 	LocMatrixMvp
-	LocMatrixModel
 	LocMatrixView
 	LocMatrixProjection
+	LocMatrixModel
+	LocMatrixNormal
 	LocVectorView
 	LocColorDiffuse
 	LocColorSpecular
@@ -736,13 +737,10 @@ const (
 	MapOcclusion
 	MapEmission
 	MapHeight
-	// NOTE: Uses GL_TEXTURE_CUBE_MAP
+	MapBrdg
 	MapCubemap
-	// NOTE: Uses GL_TEXTURE_CUBE_MAP
 	MapIrradiance
-	// NOTE: Uses GL_TEXTURE_CUBE_MAP
 	MapPrefilter
-	MapBrdf
 )
 
 // Material map type
@@ -807,7 +805,7 @@ type Material struct {
 	// Maps
 	Maps [MaxMaterialMaps]MaterialMap
 	// Generic parameters (if required)
-	Params *float32
+	Params [4]float32
 }
 
 // newMaterialFromPointer - Returns new Material from pointer
@@ -829,13 +827,13 @@ type Model struct {
 	// Local transform matrix
 	Transform     Matrix
 	MeshCount     int32
-	Meshes        []Mesh
 	MaterialCount int32
-	Materials     []Material
+	Meshes        *Mesh
+	Materials     *Material
 	MeshMaterial  *int32
 	BoneCount     int32
-	Bones         []BoneInfo
-	BindPose      []Transform
+	Bones         *BoneInfo
+	BindPose      *Transform
 }
 
 // newModelFromPointer - Returns new Model from pointer
@@ -874,56 +872,6 @@ func newRayFromPointer(ptr unsafe.Pointer) Ray {
 	return *(*Ray)(ptr)
 }
 
-// VrDevice type
-type VrDevice int32
-
-// Head Mounted Display devices
-const (
-	HmdDefaultDevice VrDevice = iota
-	HmdOculusRiftDk2
-	HmdOculusRiftCv1
-	HmdOculusGo
-	HmdValveHtcVive
-	HmdSonyPsvr
-)
-
-// VrDeviceInfo - Head-Mounted-Display device parameters
-type VrDeviceInfo struct {
-	// HMD horizontal resolution in pixels
-	HResolution int32
-	// HMD vertical resolution in pixels
-	VResolution int32
-	// HMD horizontal size in meters
-	HScreenSize float32
-	// HMD vertical size in meters
-	VScreenSize float32
-	// HMD screen center in meters
-	VScreenCenter float32
-	// HMD distance between eye and display in meters
-	EyeToScreenDistance float32
-	// HMD lens separation distance in meters
-	LensSeparationDistance float32
-	// HMD IPD (distance between pupils) in meters
-	InterpupillaryDistance float32
-	// HMD lens distortion constant parameters
-	LensDistortionValues [4]float32
-	// HMD chromatic aberration correction parameters
-	ChromaAbCorrection [4]float32
-}
-
-// NewVrDeviceInfo - Returns new VrDeviceInfo
-func NewVrDeviceInfo(hResolution, vResolution int32, hScreenSize, vScreenSize, vScreenCenter, eyeToScreenDistance,
-	lensSeparationDistance, interpupillaryDistance float32, lensDistortionValues, chromaAbCorrection [4]float32) VrDeviceInfo {
-
-	return VrDeviceInfo{hResolution, vResolution, hScreenSize, vScreenSize, vScreenCenter, eyeToScreenDistance,
-		lensSeparationDistance, interpupillaryDistance, lensDistortionValues, chromaAbCorrection}
-}
-
-// newVrDeviceInfoFromPointer - Returns new VrDeviceInfo from pointer
-func newVrDeviceInfoFromPointer(ptr unsafe.Pointer) VrDeviceInfo {
-	return *(*VrDeviceInfo)(ptr)
-}
-
 // BlendMode type
 type BlendMode int32
 
diff --git a/raylib/rlgl.go b/raylib/rlgl.go
index 238073d..0427421 100644
--- a/raylib/rlgl.go
+++ b/raylib/rlgl.go
@@ -9,11 +9,6 @@ import "C"
 import "unsafe"
 import "reflect"
 
-// cptr returns C pointer
-func (v *VrDeviceInfo) cptr() *C.VrDeviceInfo {
-	return (*C.VrDeviceInfo)(unsafe.Pointer(v))
-}
-
 // cptr returns C pointer
 func (s *Shader) cptr() *C.Shader {
 	return (*C.Shader)(unsafe.Pointer(s))