## **ds_grid_width**
**返回指定网格的宽度。**
#### **语法:**
ds_grid_width(index);
| 参数 | 描述 |
| --- | --- |
| index | 网格索引 |
**返回:** 实数
#### **描述**
这个函数将返回给定网格的宽度。这个值是网格x轴的数量,并且始终是一个整数,如下图所示:
![](https://box.kancloud.cn/1ebeade5cb6cbba1828fb6ec0e4b6ddd_343x252.png)
#### **举例:**
~~~
var i, j;
for (i = 0; i < ds_grid_width(grid); i += 1)
{
for (j = 0; j < ds_grid_height(grid); j += 1)
{
if ds_grid_get(grid, i, j) = 1
{
instance_create_layer(i * 32, j * 32, "Walls", obj_Wall);
}
}
}
~~~
上面的代码将通过变量“grid”中索引的ds_grid进行循环,如果在任何特定单元格中找到的值等于1,则会在房间内适当的位置创建一个“obj_Wall”实例。
- 简言
- 额外接口
- asset_get_index
- asset_get_type
- 粒子(PARTICLE)
- 简单粒子系统
- effect_create_below
- effect_create_above
- effect_clear
- ef_all
- 粒子系统
- 粒子系统的创建
- part_system_exists
- part_system_create
- part_system_create_layer
- part_system_get_layer
- part_system_layer
- part_system_clear
- part_system_depth
- part_system_position
- part_system_destroy
- part_particles_clear
- part_particles_count
- 系统绘图
- part_system_automatic_update
- part_system_automatic_draw
- part_system_update
- part_system_drawit
- part_system_draw_order
- 直接创建粒子
- part_particles_create
- part_particles_create_colour
- 粒子类型
- part_type_exists
- part_type_create
- part_type_destroy
- part_type_clear
- part_type_shape
- part_type_sprite
- part_type_size
- part_type_scale
- part_type_speed
- part_type_direction
- part_type_gravity
- part_type_orientation
- part_type_colour_mix
- part_type_colour_rgb
- part_type_colour_hsv
- part_type_colour1
- part_type_colour2
- part_type_colour3
- part_type_alpha1
- part_type_alpha2
- part_type_alpha3
- part_type_blend
- part_type_life
- part_type_step
- part_type_death
- 粒子发射器
- part_emitter_exists
- part_emitter_create
- part_emitter_clear
- part_emitter_region
- part_emitter_burst
- part_emitter_stream
- part_emitter_destroy
- part_emitter_destroy_all
- 数组(array)
- 数据结构(Data structures)
- 心得分享
- ds_exists
- ds_set_precision
- 网格(grid)
- ds_grid_create
- ds_grid_destroy
- ds_grid_width
- ds_grid_height
- ds_grid_resize
- ds_grid_clear
- ds_grid_set
- ds_grid_set_disk
- ds_grid_set_grid_region
- ds_grid_set_region
- ds_grid_shuffle
- ds_grid_sort
- ds_grid_get
- ds_grid_get_max
- ds_grid_get_mean
- ds_grid_get_min
- ds_grid_get_sum
- ds_grid_get_disk_max
- ds_grid_get_disk_mean
- ds_grid_get_disk_min
- ds_grid_get_disk_sum
- ds_grid_add
- ds_grid_add_region
- ds_grid_add_disk
- ds_grid_add_grid_region
- ds_grid_multiply
- ds_grid_multiply_disk
- ds_grid_multiply_region
- ds_grid_multiply_grid_region
- ds_grid_value_exists
- ds_grid_value_disk_exists
- ds_grid_value_x
- ds_grid_value_y
- ds_grid_value_disk_x
- ds_grid_value_disk_y
- ds_grid_copy
- ds_grid_read
- ds_grid_write
- 列表(list)
- 映射(map)
- 队列(Queues)
- 优先队列(Priority Queues)
- 堆栈(stack)