Added set_tile() function for manipulating a tilemap that is currently being managed by DTA. Very useful!

Author: Klayton Kowalski

dta/dta.lua

@@ -213,6 +213,33 @@ function dta.animate(x, y, layer)
 	end
 end
 
+function dta.set_tile(layer, x, y, tile, h_flipped, v_flipped)
+	if not dta.initialized then return end
+	local group = dta.animation_groups[dta.tilemap_grid[layer][y][x]]
+	if group ~= nil then
+		for i = 1, #group.instances do
+			if group.instances[i].x == x and group.instances[i].y == y and group.instances[i].layer then
+				if group.trigger then
+					if group.instances[i].handle ~= nil then
+						timer.cancel(group.instances[i].handle)
+					end
+				end
+				table.remove(group.instances, i)
+				break
+			end
+		end
+	end
+	tilemap.set_tile(dta.tilemap_url, layer, x, y, tile, h_flipped, v_flipped)
+	dta.tilemap_grid[layer][y][x] = tile
+	if dta.animation_groups[tile] ~= nil then
+		if dta.animation_groups[tile].trigger then
+			table.insert(dta.animation_groups[tile].instances, { x = x, y = y, layer = layer, frame = 1, handle = nil })
+		else
+			table.insert(dta.animation_groups[tile].instances, { x = x, y = y, layer = layer })
+		end
+	end
+end
+
 function dta.toggle_message_passing(flag, url)
 	dta.msg_passing = flag
 	dta.msg_passing_url = url

example/script.script

@@ -5,6 +5,7 @@ local tile_size = 80
 local h_str = {
 	acquire_input_focus = hash("acquire_input_focus"),
 	click = hash("click"),
+	click_debug = hash("click_debug"),
 	terrain = hash("terrain")
 }
 
@@ -19,6 +20,9 @@ function on_input(self, action_id, action)
 		local x = math.ceil(action.x / tile_size)
 		local y = math.ceil(action.y / tile_size)
 		dta.animate(x, y)
+	elseif action_id == h_str.click_debug and action.pressed then
+		-- ignore
+		-- this space is used for development testing
 	end
 end
 

input/game.input_binding

@@ -2,3 +2,7 @@ mouse_trigger {
   input: MOUSE_BUTTON_LEFT
   action: "click"
 }
+mouse_trigger {
+  input: MOUSE_BUTTON_RIGHT
+  action: "click_debug"
+}