Add/migrate some basic lua snippets

.config/nvim/snips/glsl.lua

@@ -0,0 +1,67 @@
+local ls = require("luasnip")
+local s = ls.snippet
+local t = ls.text_node
+local i = ls.insert_node
+
+return {
+  s({ trig = "ifdef" }, {
+    t("#ifdef GL_ES"),
+    t("precision mediump float;"),
+    i(1),
+    t("#endif"),
+  }),
+  s({ trig = "defpi" }, {
+    t("#define PI 3.14159265359"),
+  }),
+  s({ trig = "main" }, {
+    t("void main() {"),
+    i(1),
+    t("}"),
+  }),
+  s({ trig = "uni" }, {
+    t("uniform "),
+    i(1),
+    t(";"),
+  }),
+  s({ trig = "unif" }, {
+    t("uniform float "),
+    i(1),
+    t(";"),
+  }),
+  s({ trig = "univ" }, {
+    t("uniform vec"),
+    i(1),
+    t(" float "),
+    i(2),
+    t(";"),
+  }),
+  s({ trig = "univ2" }, {
+    t("uniform vec2 float "),
+    i(1),
+    t(";"),
+  }),
+  s({ trig = "univ3" }, {
+    t("uniform vec3 float "),
+    i(1),
+    t(";"),
+  }),
+  s({ trig = "univ4" }, {
+    t("uniform vec4 float "),
+    i(1),
+    t(";"),
+  }),
+  s({ trig = "f" }, {
+    t("float "),
+    i(1),
+    t(";"),
+  }),
+  s({ trig = "v" }, {
+    t("vec"),
+  }),
+  s({ trig = "ss" }, {
+    t("smoothstep("),
+    i(1),
+    t(")"),
+    i(2),
+  }),
+}