/*************************************************************************/
/*  vector3i.h                                                           */
/*************************************************************************/
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/*                          PANDEMONIUM ENGINE                           */
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#ifndef VECTOR3I_H
#define VECTOR3I_H

#include "core/error/error_macros.h"
#include "core/math/math_funcs.h"

class String;
struct Vector3;

struct _NO_DISCARD_CLASS_ Vector3i {
	enum Axis {
		AXIS_X,
		AXIS_Y,
		AXIS_Z,
	};

	union {
		struct {
			int32_t x;
			int32_t y;
			int32_t z;
		};

		int32_t coord[3];
	};

	_FORCE_INLINE_ const int32_t &operator[](const int p_axis) const {
		DEV_ASSERT((unsigned int)p_axis < 3);
		return coord[p_axis];
	}

	_FORCE_INLINE_ int32_t &operator[](const int p_axis) {
		DEV_ASSERT((unsigned int)p_axis < 3);
		return coord[p_axis];
	}

	void set_axis(const int p_axis, const int32_t p_value);
	int32_t get_axis(const int p_axis) const;

	_FORCE_INLINE_ void set_all(int32_t p_value) {
		x = y = z = p_value;
	}

	Vector3i::Axis min_axis() const;
	Vector3i::Axis max_axis() const;

	_FORCE_INLINE_ int64_t length_squared() const;
	_FORCE_INLINE_ double length() const;

	_FORCE_INLINE_ void zero();

	_FORCE_INLINE_ Vector3i abs() const;
	_FORCE_INLINE_ Vector3i sign() const;
	Vector3i clamp(const Vector3i &p_min, const Vector3i &p_max) const;

	_FORCE_INLINE_ Vector3i linear_interpolate(const Vector3i &p_to, real_t p_weight) const;

	/* Operators */

	_FORCE_INLINE_ Vector3i &operator+=(const Vector3i &p_v);
	_FORCE_INLINE_ Vector3i operator+(const Vector3i &p_v) const;
	_FORCE_INLINE_ Vector3i &operator-=(const Vector3i &p_v);
	_FORCE_INLINE_ Vector3i operator-(const Vector3i &p_v) const;
	_FORCE_INLINE_ Vector3i &operator*=(const Vector3i &p_v);
	_FORCE_INLINE_ Vector3i operator*(const Vector3i &p_v) const;
	_FORCE_INLINE_ Vector3i &operator/=(const Vector3i &p_v);
	_FORCE_INLINE_ Vector3i operator/(const Vector3i &p_v) const;
	_FORCE_INLINE_ Vector3i &operator%=(const Vector3i &p_v);
	_FORCE_INLINE_ Vector3i operator%(const Vector3i &p_v) const;

	_FORCE_INLINE_ Vector3i &operator*=(const int32_t p_scalar);
	_FORCE_INLINE_ Vector3i operator*(const int32_t p_scalar) const;
	_FORCE_INLINE_ Vector3i &operator/=(const int32_t p_scalar);
	_FORCE_INLINE_ Vector3i operator/(const int32_t p_scalar) const;
	_FORCE_INLINE_ Vector3i &operator%=(const int32_t p_scalar);
	_FORCE_INLINE_ Vector3i operator%(const int32_t p_scalar) const;

	_FORCE_INLINE_ Vector3i operator-() const;

	_FORCE_INLINE_ bool operator==(const Vector3i &p_v) const;
	_FORCE_INLINE_ bool operator!=(const Vector3i &p_v) const;
	_FORCE_INLINE_ bool operator<(const Vector3i &p_v) const;
	_FORCE_INLINE_ bool operator<=(const Vector3i &p_v) const;
	_FORCE_INLINE_ bool operator>(const Vector3i &p_v) const;
	_FORCE_INLINE_ bool operator>=(const Vector3i &p_v) const;

	Vector3 to_vector3() const;

	operator String() const;
	operator Vector3() const;

	_FORCE_INLINE_ Vector3i() {
		x = 0;
		y = 0;
		z = 0;
	}
	_FORCE_INLINE_ Vector3i(const int32_t p_x, const int32_t p_y, const int32_t p_z) {
		x = p_x;
		y = p_y;
		z = p_z;
	}
};

int64_t Vector3i::length_squared() const {
	return x * (int64_t)x + y * (int64_t)y + z * (int64_t)z;
}

double Vector3i::length() const {
	return Math::sqrt((double)length_squared());
}

Vector3i Vector3i::abs() const {
	return Vector3i(ABS(x), ABS(y), ABS(z));
}

Vector3i Vector3i::sign() const {
	return Vector3i(SGN(x), SGN(y), SGN(z));
}

Vector3i Vector3i::linear_interpolate(const Vector3i &p_to, real_t p_weight) const {
	return Vector3i(
			x + (p_weight * (p_to.x - x)),
			y + (p_weight * (p_to.y - y)),
			z + (p_weight * (p_to.z - z)));
}

/* Operators */

Vector3i &Vector3i::operator+=(const Vector3i &p_v) {
	x += p_v.x;
	y += p_v.y;
	z += p_v.z;
	return *this;
}

Vector3i Vector3i::operator+(const Vector3i &p_v) const {
	return Vector3i(x + p_v.x, y + p_v.y, z + p_v.z);
}

Vector3i &Vector3i::operator-=(const Vector3i &p_v) {
	x -= p_v.x;
	y -= p_v.y;
	z -= p_v.z;
	return *this;
}

Vector3i Vector3i::operator-(const Vector3i &p_v) const {
	return Vector3i(x - p_v.x, y - p_v.y, z - p_v.z);
}

Vector3i &Vector3i::operator*=(const Vector3i &p_v) {
	x *= p_v.x;
	y *= p_v.y;
	z *= p_v.z;
	return *this;
}

Vector3i Vector3i::operator*(const Vector3i &p_v) const {
	return Vector3i(x * p_v.x, y * p_v.y, z * p_v.z);
}

Vector3i &Vector3i::operator/=(const Vector3i &p_v) {
	x /= p_v.x;
	y /= p_v.y;
	z /= p_v.z;
	return *this;
}

Vector3i Vector3i::operator/(const Vector3i &p_v) const {
	return Vector3i(x / p_v.x, y / p_v.y, z / p_v.z);
}

Vector3i &Vector3i::operator%=(const Vector3i &p_v) {
	x %= p_v.x;
	y %= p_v.y;
	z %= p_v.z;
	return *this;
}

Vector3i Vector3i::operator%(const Vector3i &p_v) const {
	return Vector3i(x % p_v.x, y % p_v.y, z % p_v.z);
}

Vector3i &Vector3i::operator*=(const int32_t p_scalar) {
	x *= p_scalar;
	y *= p_scalar;
	z *= p_scalar;
	return *this;
}

Vector3i Vector3i::operator*(const int32_t p_scalar) const {
	return Vector3i(x * p_scalar, y * p_scalar, z * p_scalar);
}

// Multiplication operators required to workaround issues with LLVM using implicit conversion.

_FORCE_INLINE_ Vector3i operator*(const int32_t p_scalar, const Vector3i &p_vector) {
	return p_vector * p_scalar;
}

_FORCE_INLINE_ Vector3i operator*(const int64_t p_scalar, const Vector3i &p_vector) {
	return p_vector * p_scalar;
}

_FORCE_INLINE_ Vector3i operator*(const float p_scalar, const Vector3i &p_vector) {
	return p_vector * p_scalar;
}

_FORCE_INLINE_ Vector3i operator*(const double p_scalar, const Vector3i &p_vector) {
	return p_vector * p_scalar;
}

Vector3i &Vector3i::operator/=(const int32_t p_scalar) {
	x /= p_scalar;
	y /= p_scalar;
	z /= p_scalar;
	return *this;
}

Vector3i Vector3i::operator/(const int32_t p_scalar) const {
	return Vector3i(x / p_scalar, y / p_scalar, z / p_scalar);
}

Vector3i &Vector3i::operator%=(const int32_t p_scalar) {
	x %= p_scalar;
	y %= p_scalar;
	z %= p_scalar;
	return *this;
}

Vector3i Vector3i::operator%(const int32_t p_scalar) const {
	return Vector3i(x % p_scalar, y % p_scalar, z % p_scalar);
}

Vector3i Vector3i::operator-() const {
	return Vector3i(-x, -y, -z);
}

bool Vector3i::operator==(const Vector3i &p_v) const {
	return (x == p_v.x && y == p_v.y && z == p_v.z);
}

bool Vector3i::operator!=(const Vector3i &p_v) const {
	return (x != p_v.x || y != p_v.y || z != p_v.z);
}

bool Vector3i::operator<(const Vector3i &p_v) const {
	if (x == p_v.x) {
		if (y == p_v.y) {
			return z < p_v.z;
		} else {
			return y < p_v.y;
		}
	} else {
		return x < p_v.x;
	}
}

bool Vector3i::operator>(const Vector3i &p_v) const {
	if (x == p_v.x) {
		if (y == p_v.y) {
			return z > p_v.z;
		} else {
			return y > p_v.y;
		}
	} else {
		return x > p_v.x;
	}
}

bool Vector3i::operator<=(const Vector3i &p_v) const {
	if (x == p_v.x) {
		if (y == p_v.y) {
			return z <= p_v.z;
		} else {
			return y < p_v.y;
		}
	} else {
		return x < p_v.x;
	}
}

bool Vector3i::operator>=(const Vector3i &p_v) const {
	if (x == p_v.x) {
		if (y == p_v.y) {
			return z >= p_v.z;
		} else {
			return y > p_v.y;
		}
	} else {
		return x > p_v.x;
	}
}

void Vector3i::zero() {
	x = y = z = 0;
}

typedef Vector3i Size3i;
typedef Vector3i Point3i;

#endif // VECTOR3I_H