Lucodivo’s gists

Lucodivo / viewmodel_to_ui_communication_5_compose_ui_state_manager.kt

Created September 17, 2024 16:51

ViewModel to UI Communication: Part 5 - Compose UI State Manager

	// UI state enums
	enum class SettingsDropdownMenuState {
	None,
	DarkMode,
	ColorPalette,
	HighContrast,
	Typography,
	ImageQuality,
	}

Lucodivo / multi_if_let.kt

Last active September 12, 2024 19:56

Kotlin: multiple if let

	// taken from Jayson Minard's answer to the
	// StackOverflow question "Multiple variable let in Kotlin" by Daniel Gomez Rico
	// source: https://stackoverflow.com/a/35522422/3926619

	// 2
	inline fun <T1: Any, T2: Any, R: Any> multiIfLet(p1: T1?, p2: T2?, block: (T1, T2)->R?): R? {
	return if (p1 != null && p2 != null) block(p1, p2) else null
	}
	// 3
	inline fun <T1: Any, T2: Any, T3: Any, R: Any> multiIfLet(p1: T1?, p2: T2?, p3: T3?, block: (T1, T2, T3)->R?): R? {

Lucodivo / viewmodel_to_ui_communication_4_1_stateIn_fix.kt

Last active September 17, 2024 16:49

ViewModel to UI Communication: Part 4.1 - stateIn() fix

	// UI state enums
	enum class SettingsDropdownMenuState {
	None,
	DarkMode,
	ColorPalette,
	HighContrast,
	Typography,
	ImageQuality,
	}

Lucodivo / viewmodel_to_ui_communication_4_state_management_with_compose.kt

Last active September 17, 2024 16:48

ViewModel to UI Communication: Part 4 - Compose state management

	// UI state enums
	enum class SettingsDropdownMenuState {
	None,
	DarkMode,
	ColorPalette,
	HighContrast,
	Typography,
	ImageQuality,
	}

Lucodivo / viewmodel_to_ui_communication_3_ui_events_and_udf.kt

Last active September 17, 2024 16:47

ViewModel to UI communication: Part 3 - UI Events & UI Effects

	// UI state enums
	enum class SettingsDropdownMenuState {
	None,
	DarkMode,
	ColorPalette,
	HighContrast,
	Typography,
	ImageQuality,
	}

Lucodivo / viewmodel_to_ui_communication_2_data_class_and_interface.kt

Last active September 17, 2024 16:47

ViewModel to UI Communication: Part 2

	// UI state enums
	enum class SettingsDropdownMenuState {
	None,
	DarkMode,
	ColorPalette,
	HighContrast,
	Typography,
	ImageQuality,
	}

Lucodivo / viewmodel_to_ui_communication_1.kt

Last active September 17, 2024 16:46

ViewModel to UI Communication: Part 1

	// enough time to prevent flows from timing out on basic configuration changes
	const val STATEIN_TIMEOUT_MILLIS = 5_000L

	// ViewModel
	@HiltViewModel
	class SettingsViewModel @Inject constructor(
	private val purgeRepository: PurgeRepository,
	private val userPreferencesRepository: UserPreferencesRepository,
	): ViewModel() {

Lucodivo / gist:175ca905505347f4e9095619b7ad846a

Last active June 16, 2024 08:18

Performance Test: Spacer vs. Padding

	package com.packagename.spacervspadding

	import android.os.Bundle
	import android.util.Log
	import androidx.activity.ComponentActivity
	import androidx.activity.compose.setContent
	import androidx.compose.foundation.layout.Box
	import androidx.compose.foundation.layout.Column
	import androidx.compose.foundation.layout.Row
	import androidx.compose.foundation.layout.Spacer

Lucodivo / ObliqueProjectionMatrix.cpp

Created July 31, 2021 23:23

Oblique Projection Matrix for Portals

	/*
	* // NOTE: Oblique View Frustum Depth Projection and Clipping by Eric Lengyel (Terathon Software)
	* Arguments:
	* mat4 perspectiveMat: Perspective matrix that is being used for the rest of the scene
	* vec3 planeNormal_viewSpace: Plane normal in view space. MUST be normalized. This is a normal that points INTO the frustum, NOT one that is generally pointing towards the camera.
	* vec3 planePos_viewSpace: Any position on the plane in view space.
	*/
	mat4 obliquePerspective(const mat4& perspectiveMat, vec3 planeNormal_viewSpace, vec3 planePos_viewSpace, f32 far) {

	mat4 persp = perspectiveMat;

Connor Haskins Lucodivo