Merge pull request #233 from IntQuant/rust-api

Implement rust api to allow writing modules in rust.

quant.ew/files/system/ewext_init/ewext_init.lua

@@ -9,7 +9,7 @@ local module = {}
 
 function module.on_world_initialized()
     initial_world_state_entity = GameGetWorldStateEntity()
-    ewext.save_world_state()
+    ewext.on_world_initialized()
     local grid_world = world_ffi.get_grid_world()
     local chunk_map = grid_world.vtable.get_chunk_map(grid_world)
     grid_world = tonumber(ffi.cast("intptr_t", grid_world))
@@ -35,10 +35,34 @@ function module.on_local_player_spawn()
     EntitySetTransform(GameGetWorldStateEntity(), 0, 0)
 end
 
+local function fw_button(label)
+    return imgui.Button(label, imgui.GetWindowWidth() - 15, 20)
+end
+
+local function bench_fn_lua()
+    local start = GameGetRealWorldTimeSinceStarted()
+    for i=1,10000 do
+        local player = EntityGetClosestWithTag(0, 0, "player_unit")
+        EntitySetTransform(player, 0, 0, 0, 1, 1)
+    end
+    local elapsed = GameGetRealWorldTimeSinceStarted() - start
+    GamePrint(elapsed*1000000)
+end
+
+function module.on_draw_debug_window(imgui)
+    if imgui.CollapsingHeader("ewext") then
+        if fw_button("test_fn") then
+            ewext.test_fn()
+        end
+        if fw_button("bench") then
+            ewext.bench_fn()
+            bench_fn_lua()
+        end
+    end
+end
+
 function module.on_world_update()
     if GameGetWorldStateEntity() ~= initial_world_state_entity then
-        -- -- EntityKill(GameGetWorldStateEntity())
-        -- ewext.load_world_state()
         oh_another_world_state(GameGetWorldStateEntity())
         initial_world_state_entity = GameGetWorldStateEntity()
     end