254 lines
5.4 KiB
ReStructuredText
254 lines
5.4 KiB
ReStructuredText
2-Component Vector
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==================
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.. code:: cpp
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#include <graphics/vec2.h>
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.. struct:: vec2
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Two component vector structure.
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.. member:: float vec2.x
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X component
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.. member:: float vec2.y
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Y component
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.. member:: float vec2.ptr[2]
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Unioned array of both components
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---------------------
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.. function:: void vec2_zero(struct vec2 *dst)
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Zeroes a vector
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:param dst: Destination
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---------------------
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.. function:: void vec2_set(struct vec2 *dst, float x, float y)
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Sets the individual components of a 2-component vector.
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:param dst: Destination
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:param x: X component
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:param y: Y component
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---------------------
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.. function:: void vec2_copy(struct vec2 *dst, const struct vec2 *v)
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Copies a vector
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:param dst: Destination
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:param v: Vector to copy
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---------------------
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.. function:: void vec2_add(struct vec2 *dst, const struct vec2 *v1, const struct vec2 *v2)
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Adds two vectors
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:param dst: Destination
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:param v1: Vector 1
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:param v2: Vector 2
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---------------------
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.. function:: void vec2_sub(struct vec2 *dst, const struct vec2 *v1, const struct vec2 *v2)
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Subtracts two vectors
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:param dst: Destination
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:param v1: Vector being subtracted from
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:param v2: Vector being subtracted
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---------------------
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.. function:: void vec2_mul(struct vec2 *dst, const struct vec2 *v1, const struct vec2 *v2)
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Multiplies two vectors
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:param dst: Destination
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:param v1: Vector 1
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:param v2: Vector 2
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---------------------
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.. function:: void vec2_div(struct vec2 *dst, const struct vec2 *v1, const struct vec2 *v2)
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Divides two vectors
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:param dst: Destination
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:param v1: Dividend
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:param v2: Divisor
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---------------------
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.. function:: void vec2_addf(struct vec2 *dst, const struct vec2 *v, float f)
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Adds a floating point to all components
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:param dst: Destination
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:param dst: Vector
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:param f: Floating point
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---------------------
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.. function:: void vec2_subf(struct vec2 *dst, const struct vec2 *v, float f)
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Subtracts a floating point from all components
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:param dst: Destination
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:param v: Vector being subtracted from
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:param f: Floating point being subtracted
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---------------------
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.. function:: void vec2_mulf(struct vec2 *dst, const struct vec2 *v, float f)
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Multiplies a floating point with all components
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:param dst: Destination
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:param dst: Vector
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:param f: Floating point
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---------------------
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.. function:: void vec2_divf(struct vec2 *dst, const struct vec2 *v, float f)
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Divides a floating point from all components
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:param dst: Destination
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:param v: Vector (dividend)
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:param f: Floating point (divisor)
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---------------------
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.. function:: void vec2_neg(struct vec2 *dst, const struct vec2 *v)
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Negates a vector
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:param dst: Destination
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:param v: Vector to negate
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---------------------
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.. function:: float vec2_dot(const struct vec2 *v1, const struct vec2 *v2)
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Performs a dot product between two vectors
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:param v1: Vector 1
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:param v2: Vector 2
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:return: Result of the dot product
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---------------------
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.. function:: float vec2_len(const struct vec2 *v)
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Gets the length of a vector
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:param v: Vector
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:return: The vector's length
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---------------------
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.. function:: float vec2_dist(const struct vec2 *v1, const struct vec2 *v2)
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Gets the distance between two vectors
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:param v1: Vector 1
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:param v2: Vector 2
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:return: Distance between the two vectors
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---------------------
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.. function:: void vec2_minf(struct vec2 *dst, const struct vec2 *v, float val)
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Gets the minimum values between a vector's components and a floating point
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:param dst: Destination
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:param v: Vector
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:param val: Floating point
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---------------------
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.. function:: void vec2_min(struct vec2 *dst, const struct vec2 *v, const struct vec2 *min_v)
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Gets the minimum values between two vectors
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:param dst: Destination
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:param v: Vector 1
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:param min_v: Vector 2
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---------------------
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.. function:: void vec2_maxf(struct vec2 *dst, const struct vec2 *v, float val)
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Gets the maximum values between a vector's components and a floating point
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:param dst: Destination
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:param v: Vector
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:param val: Floating point
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---------------------
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.. function:: void vec2_max(struct vec2 *dst, const struct vec2 *v, const struct vec2 *max_v)
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Gets the maximum values between two vectors
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:param dst: Destination
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:param v: Vector 1
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:param max_v: Vector 2
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---------------------
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.. function:: void vec2_abs(struct vec2 *dst, const struct vec2 *v)
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Gets the absolute values of each component
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:param dst: Destination
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:param v: Vector
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---------------------
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.. function:: void vec2_floor(struct vec2 *dst, const struct vec2 *v)
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Gets the floor values of each component
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:param dst: Destination
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:param v: Vector
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---------------------
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.. function:: void vec2_ceil(struct vec2 *dst, const struct vec2 *v)
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Gets the ceiling values of each component
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:param dst: Destination
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:param v: Vector
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---------------------
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.. function:: int vec2_close(const struct vec2 *v1, const struct vec2 *v2, float epsilon)
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Compares two vectors
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:param v1: Vector 1
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:param v2: Vector 2
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:param epsilon: Maximum precision for comparison
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---------------------
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.. function:: void vec2_norm(struct vec2 *dst, const struct vec2 *v)
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Normalizes a vector
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:param dst: Destination
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:param v: Vector to normalize
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