package main

import rl "libraries/raylib"
import "core:math/linalg"

v1 :: [1]f32
v2 :: [2]f32
v3 :: [3]f32
v4 :: [4]f32
iv2 :: [2]i32
iv3 :: [3]i32
iv4 :: [4]i32
mat2 :: matrix[2, 2]f32
mat3 :: matrix[3, 3]f32
mat4 :: matrix[4, 4]f32
rect2 :: rl.Rectangle
irect2 :: struct {x, y, width, height: i32}
tri2 :: [3]v2
Bezier :: [3]v2

/// ### GEOMETRY ### ///
rect_from :: proc {
	rect2_from_v2,
	irect2_from_iv2,
}

@(private="file") rect2_from_v2 :: proc "contextless" (position, size: v2) -> rect2 {
	return {position.x, position.y, size.x, size.y}
}

@(private="file") irect2_from_iv2 :: proc "contextless" (position, size: iv2) -> irect2 {
	return {position.x, position.y, size.x, size.y}
}

rect_scale :: proc{
	rect2_scale,
	irect2_scale,
}

@(private="file") rect2_scale :: proc "contextless" (rect: rect2, scalar: f32) -> rect2 {
	return {rect.x * scalar, rect.y * scalar, rect.width * scalar, rect.height * scalar}
}

@(private="file") irect2_scale :: proc "contextless" (rect: irect2, scalar: i32) -> irect2 {
	return {rect.x * scalar, rect.y * scalar, rect.width * scalar, rect.height * scalar}
}

rect_grow :: proc {
	rect2_grow,
	rect2_grow_v2,
	irect2_grow,
	rect2_grow_iv2,
}

@(private="file") rect2_grow :: proc "contextless" (rect: rect2, grow: f32) -> rect2 {
	return {rect.x - grow, rect.y - grow, rect.width + grow * 2.0, rect.height + grow * 2.0}
}

@(private="file") rect2_grow_v2 :: proc "contextless" (rect: rect2, grow: v2) -> rect2 {
	return {rect.x - grow.x, rect.y - grow.y, rect.width + grow.x * 2.0, rect.height + grow.y * 2.0}
}

@(private="file") irect2_grow :: proc "contextless" (rect: irect2, grow: i32) -> irect2 {
	return {rect.x - grow, rect.y - grow, rect.width + grow * 2, rect.height + grow * 2}
}

@(private="file") rect2_grow_iv2 :: proc "contextless" (rect: irect2, grow: iv2) -> irect2 {
	return {rect.x - grow.x, rect.y - grow.y, rect.width + grow.x * 2.0, rect.height + grow.y * 2.0}
}


rect_from_area :: proc {
	rect_from_area_v2,
	rect_from_area_iv2,
}

@(private="file") rect_from_area_v2 :: proc "contextless" (start, end: v2) -> rect2 {
	tl := linalg.min(start, end)
	return {**tl, **(linalg.max(start, end) - tl)}
}

@(private="file") rect_from_area_iv2 :: proc "contextless" (start, end: iv2) -> irect2 {
	tl := linalg.min(start, end)
	return {**tl, **(linalg.max(start, end) - tl)}
}

rect_from_corners :: proc {
	rect2_from_corners,
	irect2_from_corners,
}

@(private="file") rect2_from_corners :: proc "contextless" (tl, tr, br, bl: v2) -> rect2 {
	top_left := linalg.min(linalg.min(tl, tr, br), bl)
	bottom_right := linalg.max(linalg.max(tl, tr, br), bl)
	return {**top_left, **(bottom_right - top_left)}
}

@(private="file") irect2_from_corners :: proc "contextless" (tl, tr, br, bl: iv2) -> irect2 {
	top_left := linalg.min(linalg.min(tl, tr, br), bl)
	bottom_right := linalg.max(linalg.max(tl, tr, br), bl)
	return {**top_left, **(bottom_right - top_left)}
}

rect_get_br :: proc {
	rect2_get_br,
	irect2_get_br,
}

@(private="file") rect2_get_br :: proc(rect: rect2) -> v2 {
	return {rect.x + rect.width, rect.y + rect.height}
}

@(private="file") irect2_get_br :: proc(rect: irect2) -> iv2 {
	return {rect.x + rect.width, rect.y + rect.height}
}