Class: NvTriStrip::PrimitiveGroup

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
ext/RbTriStrip.cpp

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.new(type, numIndices) ⇒ Object

Creates an PrimitiveGroup of given number and type of indices, rarely used directly



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# File 'ext/RbTriStrip.cpp', line 35

VALUE primitivegroup_new(VALUE klass, VALUE type, VALUE numIndices) {

	PrimitiveGroupWrap *pgw;
	VALUE rpg=Data_Make_Struct(klass, PrimitiveGroupWrap, 0, primitivegroup_free, pgw);
	pgw->pg=new PrimitiveGroup;
	pgw->pg->type=(PrimType)NUM2INT(type);
	pgw->pg->numIndices=NUM2INT(numIndices);
	pgw->pg->indices=new unsigned short[pgw->pg->numIndices];
	memset(pgw->pg->indices, 0, pgw->pg->numIndices * sizeof(unsigned short));
	
	return rpg;
}

Instance Method Details

#each ⇒ Object

Iterate through all indices



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# File 'ext/RbTriStrip.cpp', line 93

VALUE primitivegroup_each(VALUE self) {
	PrimitiveGroupWrap *pgw;
	Data_Get_Struct(self, PrimitiveGroupWrap, pgw);
	
	for(int i=0;i<pgw->pg->numIndices;i++) {
		rb_yield(INT2NUM(pgw->pg->indices[i]));
	}
	
}

#index ⇒ Object #[](index) ⇒ Object Also known as: []

Value at index



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# File 'ext/RbTriStrip.cpp', line 69

VALUE primitivegroup_get_at(VALUE self, VALUE index) {
	PrimitiveGroupWrap *pgw;
	Data_Get_Struct(self, PrimitiveGroupWrap, pgw);
	int i=NUM2INT(index);
	if(i<0 || i>pgw->pg->numIndices-1) rb_raise(rb_eIndexError,"Index out of bounds");

	return INT2NUM(pgw->pg->indices[i]);
	
}

#num_indices ⇒ Object #size ⇒ Object Also known as: length, size

Number of indices



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# File 'ext/RbTriStrip.cpp', line 83

VALUE primitivegroup_num_indices(VALUE self) {
	PrimitiveGroupWrap *pgw;
	Data_Get_Struct(self, PrimitiveGroupWrap, pgw);

	return INT2NUM(pgw->pg->numIndices);
	
}

#index ⇒ Object #[]=(index) ⇒ Object Also known as: []=

Set value at index



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# File 'ext/RbTriStrip.cpp', line 53

VALUE primitivegroup_set_at(VALUE self, VALUE index, VALUE val) {
	PrimitiveGroupWrap *pgw;
	Data_Get_Struct(self, PrimitiveGroupWrap, pgw);
	int v=NUM2INT(val);
	int i=NUM2INT(index);
	if(i<0 || i>pgw->pg->numIndices-1) rb_raise(rb_eIndexError,"Index out of bounds");
	if(v<0 || v>65535) rb_raise(rb_eArgError, "Indices need to be between 0 and 65535");
	pgw->pg->indices[i]=v;

	return val;
}