Thomas Karcher t-karcher

t-karcher / curved_fragment.shader

Last active August 24, 2023 15:08

Godot shader bending a flat 2d world (e.g. a platformer) to a tiny planet.

	shader_type canvas_item;

	uniform sampler2D screen_texture : hint_screen_texture, filter_nearest;
	uniform float radius = 3.0;

	void fragment() {
	vec2 uv = SCREEN_UV;
	uv.y = 1.0 - uv.y; // seems like the origin changed in Godot 4.
	vec2 surface = vec2(0.5, 0.2);
	vec2 center = surface - vec2(0, radius);

t-karcher / LineEdit.gd

Created May 5, 2020 05:32

Filters out characters from input in LineEdit using a RegExp pattern of allowed characters

	extends LineEdit

	var allowed_characters = "[A-Za-z]"

	func _on_LineEdit_text_changed(new_text):
	var old_caret_position = self.caret_position

	var word = ''
	var regex = RegEx.new()
	regex.compile(allowed_characters)

t-karcher / scientific_notation.gd

Last active October 4, 2023 13:42

GDScipt function converting a floating point number to a string in scientific notation

	func test_output():
	print (get_scientific_notation(123456789.0, 0)) # 1e8
	print (get_scientific_notation(123456789.0, 1)) # 1.2e8
	print (get_scientific_notation(123456789.0)) # 1.2345678e8
	print (get_scientific_notation(0.123456789, 0)) # 1e-1
	print (get_scientific_notation(0.123456789, 1)) # 1.2e-1
	print (get_scientific_notation(0.123456789)) # 1.2345678e-1
	print (get_scientific_notation(12345, 0, true)) # 12e3
	print (get_scientific_notation(1234567, 0, true)) # 1e6
	print (get_scientific_notation(123456789, 0, true)) # 123e6