More lua stuff, yay.

src/ui/uielement.c

@@ -7,6 +7,7 @@
 
 #include "uielement.h"
 #include "display/screen.h"
+#include "debug/debug.h"
 
 errorret_t uiElementInitScript(
   uielement_t *element, 
@@ -18,40 +19,52 @@ errorret_t uiElementInitScript(
 }
 
 errorret_t uiElementUpdate(uielement_t *element) {
-  if(!scriptContextHasFunc(&element->ctx, "update")) errorOk();
-
-  errorChain(scriptContextCallFunc(
-    &element->ctx,
-    "update",
-    NULL,
-    0,
-    NULL
-  ));
+  lua_getglobal(element->ctx.luaState, "uiElementUpdate");
+  if(lua_isfunction(element->ctx.luaState, -1)) {
+    if(lua_pcall(element->ctx.luaState, 0, 0, 0) != LUA_OK) {
+      const char_t *strErr = lua_tostring(element->ctx.luaState, -1);
+      lua_pop(element->ctx.luaState, 1);
+      errorThrow("Failed to call UI element uiElementUpdate: %s", strErr);
+    }
+  } else {
+    lua_pop(element->ctx.luaState, 1);
+  }
 
   errorOk();
 }
 
 errorret_t uiElementRender(uielement_t *element) {
-  if(!scriptContextHasFunc(&element->ctx, "render")) errorOk();
+  lua_getglobal(element->ctx.luaState, "uiElementRender");
+  if(lua_isfunction(element->ctx.luaState, -1)) {
 
-  // scriptvalue_t args[4] = {
-  //   { .type = SCRIPT_VALUE_TYPE_FLOAT, .value.floatValue = 0.0f },
-  //   { .type = SCRIPT_VALUE_TYPE_FLOAT, .value.floatValue = 0.0f },
-  //   { .type = SCRIPT_VALUE_TYPE_FLOAT, .value.floatValue = SCREEN.width },
-  //   { .type = SCRIPT_VALUE_TYPE_FLOAT, .value.floatValue = SCREEN.height },
-  // };
-
-  // errorChain(scriptContextCallFunc(
-  //   &element->ctx,
-  //   "render",
-  //   args,
-  //   4,
-  //   NULL
-  // ));
+    // Push parameters: x, y, w, h
+    lua_pushnumber(element->ctx.luaState, 0);
+    lua_pushnumber(element->ctx.luaState, 0);
+    lua_pushnumber(element->ctx.luaState, SCREEN.width);
+    lua_pushnumber(element->ctx.luaState, SCREEN.height);
+    
+    if(lua_pcall(element->ctx.luaState, 4, 0, 0) != LUA_OK) {
+      const char_t *strErr = lua_tostring(element->ctx.luaState, -1);
+      lua_pop(element->ctx.luaState, 1);
+      errorThrow("Failed to call UI element uiElementRender: %s", strErr);
+    }
+  } else {
+    lua_pop(element->ctx.luaState, 1);
+  }
 
   errorOk();
 }
 
 void uiElementDispose(uielement_t *element) {
+  lua_getglobal(element->ctx.luaState, "uiElementDispose");
+  if(lua_isfunction(element->ctx.luaState, -1)) {
+    if(lua_pcall(element->ctx.luaState, 0, 0, 0) != LUA_OK) {
+      const char_t *strErr = lua_tostring(element->ctx.luaState, -1);
+      lua_pop(element->ctx.luaState, 1);
+      debugPrint("Failed to call UI element uiElementDispose: %s\n", strErr);
+    }
+  } else {
+    lua_pop(element->ctx.luaState, 1);
+  }
   scriptContextDispose(&element->ctx);
 }