make "on" water turbine animated!

This uses a fairly simple trick: the textures are animated, while the model is static and has a number of rotated copies of the parts that are seen to move (four copies of the blades, eight copies of the top/bottom and their edges). The opaque parts of the textures then decide which of those faces' copies are visible in each frame.
minetest-mods · Feb 12, 2017 · 46cbc76 · 46cbc76
1 parent fa3bd19
commit 46cbc76
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Showing 7 changed files with 2,069 additions and 6 deletions.
diff --git a/mesecons_hydroturbine/init.lua b/mesecons_hydroturbine/init.lua
@@ -5,12 +5,12 @@
 
 minetest.register_node("mesecons_hydroturbine:hydro_turbine_off", {
 	drawtype = "mesh",
-	mesh = "jeija_hydro_turbine.obj",
+	mesh = "jeija_hydro_turbine_off.obj",
 	tiles = {
 		"jeija_hydro_turbine_sides_off.png",
 		"jeija_hydro_turbine_top_bottom.png",
-		"jeija_hydro_turbine_turbine_top_bottom.png",
-		"jeija_hydro_turbine_turbine_misc.png"
+		"jeija_hydro_turbine_turbine_top_bottom_off.png",
+		"jeija_hydro_turbine_turbine_misc_off.png"
 	},
 	inventory_image = "jeija_hydro_turbine_inv.png",
 	wield_scale = {x=0.75, y=0.75, z=0.75},
@@ -29,13 +29,15 @@ minetest.register_node("mesecons_hydroturbine:hydro_turbine_off", {
 
 minetest.register_node("mesecons_hydroturbine:hydro_turbine_on", {
 	drawtype = "mesh",
-	mesh = "jeija_hydro_turbine.obj",
+	mesh = "jeija_hydro_turbine_on.obj",
 	wield_scale = {x=0.75, y=0.75, z=0.75},
 	tiles = {
 		"jeija_hydro_turbine_sides_on.png",
 		"jeija_hydro_turbine_top_bottom.png",
-		"jeija_hydro_turbine_turbine_top_bottom.png",
-		"jeija_hydro_turbine_turbine_misc.png"
+		{ name = "jeija_hydro_turbine_turbine_top_bottom_on.png",
+		    animation = {type = "vertical_frames", aspect_w = 128, aspect_h = 16, length = 1.6} },
+		{ name = "jeija_hydro_turbine_turbine_misc_on.png",
+		    animation = {type = "vertical_frames", aspect_w = 256, aspect_h = 32, length = 0.4} }
 	},
 	inventory_image = "jeija_hydro_turbine_inv.png",
 	drop = "mesecons_hydroturbine:hydro_turbine_off 1",

diff --git a/...droturbine/models/jeija_hydro_turbine.obj → ...urbine/models/jeija_hydro_turbine_off.obj b/...droturbine/models/jeija_hydro_turbine.obj → ...urbine/models/jeija_hydro_turbine_off.obj