feat: prevent drawing particles over text by default

Author: sphamba

lua/smear_cursor/config.lua

@@ -142,7 +142,7 @@ M.particles_enabled = false -- When true, better to also set `never_draw_over_ta
 M.particle_max_num = 100
 M.particle_spread = 0.5 -- 0: no spread, 1: spread over entire cursor
 M.particles_per_second = 200
-M.particles_per_length = 0.5 -- per character width
+M.particles_per_length = 1.0 -- per character width
 M.particle_max_lifetime = 300 -- milliseconds
 M.particle_lifetime_distribution_exponent = 5
 M.particle_max_initial_velocity = 10 -- characters width per second
@@ -151,6 +151,7 @@ M.particle_random_velocity = 100 -- characters width per second
 M.particle_damping = 0.2
 M.particle_gravity = 20 -- characters width per second squared
 M.min_distance_emit_particles = 1.5 -- character widths
+M.particles_over_text = false
 
 -- For debugging ---------------------------------------------------------------
 

lua/smear_cursor/draw.lua

@@ -910,6 +910,7 @@ M.draw_particles = function(particles, target_position)
 	for row, row_cells in pairs(cells) do
 		for col, cell in pairs(row_cells) do
 			if row == target_position[1] and col == target_position[2] then goto continue end
+			if not config.particles_over_text and vim.fn.screenstring(row, col) ~= " " then goto continue end
 
 			local num_dots = (cell[1][1] > 0 and 1 or 0)
 				+ (cell[2][1] > 0 and 1 or 0)