From 95a5586e0fe196e2291acaf128b8d1b4f8a32510 Mon Sep 17 00:00:00 2001
From: Singularis <singularis@volny.cz>
Date: Mon, 21 Apr 2025 07:21:53 +0200
Subject: [advtrains] přechod na Advtrains 2.5.0 (první pokus)
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- [ch_core/lib] drobná oprava
- [advtrains_attachment_offset_patch] použití initial_properties
---
 advtrains_trackmap/fsrender.lua | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 advtrains_trackmap/fsrender.lua

(limited to 'advtrains_trackmap/fsrender.lua')

diff --git a/advtrains_trackmap/fsrender.lua b/advtrains_trackmap/fsrender.lua
new file mode 100644
index 0000000..340b08c
--- /dev/null
+++ b/advtrains_trackmap/fsrender.lua
@@ -0,0 +1,41 @@
+-- fsrender.lua
+-- Rendering of a grid of characters into a formspec
+
+local tm = advtrains.trackmap
+
+function tm.render_grid_formspec(formsize_x, formsize_y, gridtbl, origin_pos, width, height)
+	local grid = gridtbl.grid
+	local gcolor = gridtbl.gcolor
+	local s = {
+		"formspec_version[3]",
+		"size["..formsize_x..","..formsize_y.."]",
+		"no_prepend[]",
+		"bgcolor[white;false;white]",
+		"style_type[label;font=mono]",
+		"label[0,0;",
+		minetest.get_color_escape_sequence("black")
+		}
+	local last_color = nil
+	for z=height-1, 0, -1 do
+		-- render a row
+		for x=0,width-1 do
+			local apos_x = origin_pos.x + x
+			local apos_z = origin_pos.z + z
+			local chr = " "
+			if grid[apos_x] and grid[apos_x][apos_z] then
+				local color = gcolor[apos_x][apos_z]
+				if color ~= last_color then
+					-- change the color of the text
+					table.insert(s, minetest.get_color_escape_sequence(color or "black"))
+					last_color = color
+				end
+				chr = grid[apos_x][apos_z]
+			end
+			table.insert(s, chr)
+		end
+		table.insert(s,"\n")
+	end
+	table.insert(s, "]")
+	table.insert(s, "style_type[label;font=]") -- reset font style
+	return table.concat(s)
+end
\ No newline at end of file
-- 
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