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Sdk gui component api documentation

Built-in scripting functions.

Namespace:	dmGameSystem
Include:	#include <dmsdk/gamesys/gui.h>

TYPES
CompGetConstantCallback	Used in GetMaterialConstant to resolve a render co...
CompSetConstantCallback	Used in SetMaterialConstant to set a render consta...
HComponentRenderConstants	Render constants handle

FUNCTIONS
int AreRenderConstantsUpdated(dmGameSystem::HComponentRenderConstants constants)	check if the constants have changed
int ClearRenderConstant(dmGameSystem::HComponentRenderConstants constants, dmhash_t name_hash)	Removes a render constant from the container
dmGameSystem::HComponentRenderConstants CreateRenderConstants()	Create a new HComponentRenderConstants container
void DestroyRenderConstants(dmGameSystem::HComponentRenderConstants constants)	Destroys a render constants container
void DM_DECLARE_COMPGUI_TYPE(C++ symbol name symbol, const char* name, GuiNodeTypeCreateFunction type_create_fn, GuiNodeTypeDestroyFunction type_destroy_fn)	Registers a new gui node type to the Gui component
void EnableRenderObjectConstants(dmRender::RenderObject* ro, dmGameSystem::HComponentRenderConstants constants)	set the constants of a render object
bool GetRenderConstant(dmGameSystem::HComponentRenderConstants constants, dmhash_t name_hash, dmRender::Constant** out_constant)	Destroys a render constants container
dmRender::HConstant GetRenderConstant(dmGameSystem::HComponentRenderConstants constants, uint32_t index)	Get a render constant by index
uint32_t GetRenderConstantCount(dmGameSystem::HComponentRenderConstants constants)	Get the number of render constants
void GuiNodeTypeDestroyFunction()
void GuiNodeTypeDestroyFunction()
void HashRenderConstants(dmGameSystem::HComponentRenderConstants constants, HashState32* state)	Hashes the constants
void SetRenderConstant(dmGameSystem::HComponentRenderConstants constants, dmRender::HMaterial material, dmhash_t name_hash, uint32_t value_index, uint32_t* element_index, const dmGameObject::PropertyVar& var)	Set a render constant by name. The constant must e...
void SetRenderConstant(dmGameSystem::HComponentRenderConstants constants, dmhash_t name_hash, dmVMath::Vector4* values, uint32_t num_values)	Set a render constant by name. The constant must e...

Functions

AreRenderConstantsUpdated

int AreRenderConstantsUpdated(dmGameSystem::HComponentRenderConstants constants)

check if the constants have changed

PARAMETERS

dmGameSystem::HComponentRenderConstants

constants

the constants

RETURNS

int	non zero if the constants were changed

---

ClearRenderConstant

int ClearRenderConstant(dmGameSystem::HComponentRenderConstants constants, dmhash_t name_hash)

Removes a render constant from the container

PARAMETERS

dmGameSystem::HComponentRenderConstants	constants	the constants
dmhash_t	name_hash	the hashed name of the constant

RETURNS

int	non zero if the constant was removed

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CreateRenderConstants

dmGameSystem::HComponentRenderConstants CreateRenderConstants()

Create a new HComponentRenderConstants container

PARAMETERS

RETURNS

dmGameSystem::HComponentRenderConstants

---

DestroyRenderConstants

void DestroyRenderConstants(dmGameSystem::HComponentRenderConstants constants)

Destroys a render constants container

PARAMETERS

dmGameSystem::HComponentRenderConstants

constants

(must not be 0)

---

DM_DECLARE_COMPGUI_TYPE

void DM_DECLARE_COMPGUI_TYPE(C++ symbol name symbol, const char* name, GuiNodeTypeCreateFunction type_create_fn, GuiNodeTypeDestroyFunction type_destroy_fn)

Registers a new gui node type to the Gui component

PARAMETERS

C++ symbol name	symbol	The unique C++ symbol name
const char*	name	The name of the node type
GuiNodeTypeCreateFunction	type_create_fn	the create function
GuiNodeTypeDestroyFunction	type_destroy_fn	the destroy function. May be 0

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EnableRenderObjectConstants

void EnableRenderObjectConstants(dmRender::RenderObject* ro, dmGameSystem::HComponentRenderConstants constants)

set the constants of a render object

PARAMETERS

dmRender::RenderObject*	ro	the render object
dmGameSystem::HComponentRenderConstants	constants	the constants

---

GetRenderConstant

bool GetRenderConstant(dmGameSystem::HComponentRenderConstants constants, dmhash_t name_hash, dmRender::Constant** out_constant)

Destroys a render constants container

PARAMETERS

dmGameSystem::HComponentRenderConstants	constants	the constants
dmhash_t	name_hash	the hashed name of the property
dmRender::Constant**	out_constant	the pointer where to store the constant

RETURNS

bool	returns true if the constant exists

---

GetRenderConstant

dmRender::HConstant GetRenderConstant(dmGameSystem::HComponentRenderConstants constants, uint32_t index)

Get a render constant by index

PARAMETERS

dmGameSystem::HComponentRenderConstants	constants	the constants
uint32_t	index	the index

RETURNS

dmRender::HConstant

the pointer where to store the constant

---

GetRenderConstantCount

uint32_t GetRenderConstantCount(dmGameSystem::HComponentRenderConstants constants)

Get the number of render constants

PARAMETERS

dmGameSystem::HComponentRenderConstants

constants

the constants

RETURNS

uint32_t

returns the number of set constants

---

GuiNodeTypeDestroyFunction

void GuiNodeTypeDestroyFunction()

PARAMETERS

---

GuiNodeTypeDestroyFunction

void GuiNodeTypeDestroyFunction()

PARAMETERS

---

HashRenderConstants

void HashRenderConstants(dmGameSystem::HComponentRenderConstants constants, HashState32* state)

Hashes the constants

PARAMETERS

dmGameSystem::HComponentRenderConstants	constants	the constants
HashState32*	state	the hash state to update

---

SetRenderConstant

void SetRenderConstant(dmGameSystem::HComponentRenderConstants constants, dmRender::HMaterial material, dmhash_t name_hash, uint32_t value_index, uint32_t* element_index, const dmGameObject::PropertyVar& var)

Set a render constant by name. The constant must exist in the material

PARAMETERS

dmGameSystem::HComponentRenderConstants	constants	the render constants buffer
dmRender::HMaterial	material	the material to get default values from if constant didn't already exist in the render constants buffer
dmhash_t	name_hash	the hashed name of the constant
uint32_t	value_index	index of the constant value to set, if the constant is an array
uint32_t*	element_index	pointer to the index of the element (in range [0,3]). May be 0
const dmGameObject::PropertyVar&	var	the constant value

---

SetRenderConstant

void SetRenderConstant(dmGameSystem::HComponentRenderConstants constants, dmhash_t name_hash, dmVMath::Vector4* values, uint32_t num_values)

Set a render constant by name. The constant must exist in the material

PARAMETERS

dmGameSystem::HComponentRenderConstants	constants	the constants
dmhash_t	name_hash	the hashed name of the constant
dmVMath::Vector4*	values	the values
uint32_t	num_values	number of values in the array

---

Types

CompGetConstantCallback

Used in GetMaterialConstant to resolve a render constant's value

---

CompSetConstantCallback

Used in SetMaterialConstant to set a render constant's value

---

HComponentRenderConstants

Render constants handle

---