UI first pass

assets/ui/test.js

@@ -0,0 +1,6 @@
+module = {
+  render() {
+    Text.draw(10, 10, "Hello World");
+    SpriteBatch.flush();
+  }
+};

src/dusk/console/console.c

@@ -136,7 +136,7 @@ errorret_t consoleDraw(void) {
       &FONT_TEXTURE_DEFAULT
     ));
   }
-  errorOk();
+  return spriteBatchFlush();
 }
 
 void consoleDispose(void) {

src/dusk/display/spritebatch/spritebatch.h

@@ -8,9 +8,9 @@
 #pragma once
 #include "display/mesh/quad.h"
 
-#define SPRITEBATCH_SPRITES_MAX 32
+#define SPRITEBATCH_SPRITES_MAX 256
 #define SPRITEBATCH_VERTEX_COUNT (SPRITEBATCH_SPRITES_MAX * QUAD_VERTEX_COUNT) 
-#define SPRITEBATCH_FLUSH_COUNT 4
+#define SPRITEBATCH_FLUSH_COUNT 8
 #define SPRITEBATCH_SPRITES_MAX_PER_FLUSH (\
   SPRITEBATCH_SPRITES_MAX / SPRITEBATCH_FLUSH_COUNT \
 )

src/dusk/item/CMakeLists.txt

@@ -0,0 +1,10 @@
+# Copyright (c) 2026 Dominic Masters
+#
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+# Sources
+target_sources(${DUSK_LIBRARY_TARGET_NAME}
+  PUBLIC
+    inventory.c
+)

src/dusk/item/inventory.c

@@ -0,0 +1,207 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "inventory.h"
+#include "assert/assert.h"
+
+void inventoryInit(
+  inventory_t *inventory,
+  itemstack_t *inventoryItems,
+  const uint32_t inventorySize
+) {
+  assertNotNull(inventory, "Inventory must not be null");
+  assertNotNull(inventoryItems, "Inventory items must not be null");
+  assertTrue(inventorySize > 0, "Inventory size must be greater than zero");
+
+  inventory->inventoryItems = inventoryItems;
+  inventory->inventorySize = inventorySize;
+  inventoryClear(inventory);
+}
+
+uint8_t inventoryItemAdd(
+  inventory_t *inventory,
+  const itemtype_t type,
+  const uint8_t count
+) {
+  assertNotNull(inventory, "Inventory must not be null");
+  assertFalse(type == ITEM_TYPE_NULL, "Cannot add null item type");
+  assertTrue(count > 0, "Count must be greater than zero");
+
+  uint8_t remaining = count;
+
+  // Fill existing stacks of matching type first
+  for(uint32_t i = 0; i < inventory->inventorySize && remaining > 0; i++) {
+    itemstack_t *stack = &inventory->inventoryItems[i];
+    if(stack->type != type) continue;
+    if(stack->count >= ITEM_STACK_COUNT_MAX) continue;
+
+    uint8_t space = ITEM_STACK_COUNT_MAX - stack->count;
+    uint8_t toAdd = remaining < space ? remaining : space;
+    stack->count += toAdd;
+    remaining -= toAdd;
+  }
+
+  // Fill empty slots with new stacks
+  for(uint32_t i = 0; i < inventory->inventorySize && remaining > 0; i++) {
+    itemstack_t *stack = &inventory->inventoryItems[i];
+    if(stack->type != ITEM_TYPE_NULL) continue;
+
+    uint8_t toAdd = remaining < ITEM_STACK_COUNT_MAX ? remaining : ITEM_STACK_COUNT_MAX;
+    stack->type = type;
+    stack->count = toAdd;
+    remaining -= toAdd;
+  }
+
+  return count - remaining;
+}
+
+uint8_t inventoryItemRemove(
+  inventory_t *inventory,
+  const itemtype_t type,
+  const uint8_t count
+) {
+  assertNotNull(inventory, "Inventory must not be null");
+  assertFalse(type == ITEM_TYPE_NULL, "Cannot remove null item type");
+  assertTrue(count > 0, "Count must be greater than zero");
+
+  uint8_t remaining = count;
+
+  for(uint32_t i = 0; i < inventory->inventorySize && remaining > 0; i++) {
+    itemstack_t *stack = &inventory->inventoryItems[i];
+    if(stack->type != type) continue;
+
+    uint8_t toRemove = remaining < stack->count ? remaining : stack->count;
+    stack->count -= toRemove;
+    remaining -= toRemove;
+
+    if(stack->count == 0) stack->type = ITEM_TYPE_NULL;
+  }
+
+  return count - remaining;
+}
+
+uint8_t inventoryItemCount(
+  const inventory_t *inventory,
+  const itemtype_t type
+) {
+  assertNotNull(inventory, "Inventory must not be null");
+
+  uint8_t total = 0;
+  for(uint32_t i = 0; i < inventory->inventorySize; i++) {
+    if(inventory->inventoryItems[i].type == type) {
+      total += inventory->inventoryItems[i].count;
+    }
+  }
+  return total;
+}
+
+uint32_t inventoryStackCount(const inventory_t *inventory) {
+  assertNotNull(inventory, "Inventory must not be null");
+
+  uint32_t count = 0;
+  for(uint32_t i = 0; i < inventory->inventorySize; i++) {
+    if(inventory->inventoryItems[i].type != ITEM_TYPE_NULL) count++;
+  }
+  return count;
+}
+
+size_t inventoryItemCountAll(const inventory_t *inventory) {
+  assertNotNull(inventory, "Inventory must not be null");
+
+  size_t total = 0;
+  for(uint32_t i = 0; i < inventory->inventorySize; i++) {
+    if(inventory->inventoryItems[i].type != ITEM_TYPE_NULL) {
+      total += inventory->inventoryItems[i].count;
+    }
+  }
+  return total;
+}
+
+void inventoryItemSet(
+  inventory_t *inventory,
+  const itemtype_t type,
+  const uint8_t count
+) {
+  assertNotNull(inventory, "Inventory must not be null");
+  assertFalse(type == ITEM_TYPE_NULL, "Cannot set null item type");
+
+  // Find existing stack of this type
+  for(uint32_t i = 0; i < inventory->inventorySize; i++) {
+    if(inventory->inventoryItems[i].type != type) continue;
+    inventory->inventoryItems[i].count = count;
+    if(count == 0) inventory->inventoryItems[i].type = ITEM_TYPE_NULL;
+    return;
+  }
+
+  // Find empty slot
+  for(uint32_t i = 0; i < inventory->inventorySize; i++) {
+    if(inventory->inventoryItems[i].type != ITEM_TYPE_NULL) continue;
+    inventory->inventoryItems[i].type = type;
+    inventory->inventoryItems[i].count = count;
+    return;
+  }
+
+  assertUnreachable("Inventory is full, cannot set item");
+}
+
+void inventoryClear(inventory_t *inventory) {
+  assertNotNull(inventory, "Inventory must not be null");
+
+  for(uint32_t i = 0; i < inventory->inventorySize; i++) {
+    inventory->inventoryItems[i].type = ITEM_TYPE_NULL;
+    inventory->inventoryItems[i].count = 0;
+  }
+}
+
+bool_t inventoryIsFull(const inventory_t *inventory) {
+  assertNotNull(inventory, "Inventory must not be null");
+
+  for(uint32_t i = 0; i < inventory->inventorySize; i++) {
+    itemstack_t *stack = &inventory->inventoryItems[i];
+    if(stack->type == ITEM_TYPE_NULL) return false;
+    if(stack->count < ITEM_STACK_COUNT_MAX) return false;
+  }
+  return true;
+}
+
+bool_t inventoryIsEmpty(const inventory_t *inventory) {
+  assertNotNull(inventory, "Inventory must not be null");
+
+  for(uint32_t i = 0; i < inventory->inventorySize; i++) {
+    if(inventory->inventoryItems[i].type != ITEM_TYPE_NULL) return false;
+  }
+  return true;
+}
+
+bool_t inventoryItemHas(
+  const inventory_t *inventory,
+  const itemtype_t type,
+  const uint8_t count
+) {
+  assertNotNull(inventory, "Inventory must not be null");
+  return inventoryItemCount(inventory, type) >= count;
+}
+
+bool_t inventoryItemCanAdd(
+  const inventory_t *inventory,
+  const itemtype_t type,
+  const uint8_t count
+) {
+  assertNotNull(inventory, "Inventory must not be null");
+  assertFalse(type == ITEM_TYPE_NULL, "Cannot check null item type");
+
+  uint32_t space = 0;
+  for(uint32_t i = 0; i < inventory->inventorySize; i++) {
+    itemstack_t *stack = &inventory->inventoryItems[i];
+    if(stack->type == type) {
+      space += ITEM_STACK_COUNT_MAX - stack->count;
+    } else if(stack->type == ITEM_TYPE_NULL) {
+      space += ITEM_STACK_COUNT_MAX;
+    }
+  }
+  return space >= count;
+}

src/dusk/item/inventory.h

@@ -0,0 +1,148 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "itemstack.h"
+
+typedef struct {
+  itemstack_t *inventoryItems;
+  uint32_t inventorySize;
+} inventory_t;
+
+/**
+ * Initializes an inventory with the given item stack array and size.
+ * 
+ * @param inventory The inventory to initialize.
+ * @param inventoryItems The array of item stacks to use for the inventory.
+ * @param inventorySize The size of the inventory (number of item stacks).
+ */
+void inventoryInit(
+  inventory_t *inventory,
+  itemstack_t *inventoryItems,
+  const uint32_t inventorySize
+);
+
+/**
+ * Adds items to the inventory, stacking them if possible.
+ * 
+ * @param inventory The inventory to add items to.
+ * @param type The type of item to add.
+ * @param count The number of items to add.
+ * @return The number of items that were successfully added to the inventory.
+ */
+uint8_t inventoryItemAdd(
+  inventory_t *inventory,
+  const itemtype_t type,
+  const uint8_t count
+);
+
+/**
+ * Removes items from the inventory, unstacking them if necessary.
+ * 
+ * @param inventory The inventory to remove items from.
+ * @param type The type of item to remove.
+ * @param count The number of items to remove.
+ * @return The number of items that were successfully removed from the inventory.
+ */
+uint8_t inventoryItemRemove(
+  inventory_t *inventory,
+  const itemtype_t type,
+  const uint8_t count
+);
+
+/**
+ * Get count of items of a type in the inventory.
+ * 
+ * @param inventory The inventory to count items in.
+ * @param type The type of item to count.
+ * @return The number of items of the given type in the inventory.
+ */
+uint8_t inventoryItemCount(
+  const inventory_t *inventory,
+  const itemtype_t type
+);
+
+/**
+ * Get count of STACKS in the inventory.
+ * 
+ * @param inventory The inventory to count stacks in.
+ * @return The number of stacks in the inventory.
+ */
+uint32_t inventoryStackCount(const inventory_t *inventory);
+
+/**
+ * Get count of ITEMS in the inventory.
+ * 
+ * @param inventory The inventory to count items in.
+ * @return The number of items in the inventory.
+ */
+size_t inventoryItemCountAll(const inventory_t *inventory);
+
+/**
+ * Sets the item stack at the given index in the inventory.
+ * 
+ * @param inventory The inventory to set the item stack in.
+ * @param index The index of the item stack to set.
+ * @param type The type of item to set in the stack.
+ * @param count The number of items to set in the stack.
+ */
+void inventoryItemSet(
+  inventory_t *inventory,
+  const itemtype_t type,
+  const uint8_t count
+);
+
+/**
+ * Clears all item stacks in the inventory.
+ * 
+ * @param inventory The inventory to clear.
+ */
+void inventoryClear(inventory_t *inventory);
+
+/**
+ * Checks if the inventory is full.
+ * 
+ * @param inventory The inventory to check.
+ * @return true if the inventory is full, false otherwise.
+ */
+bool_t inventoryIsFull(const inventory_t *inventory);
+
+/**
+ * Checks if the inventory is empty.
+ * 
+ * @param inventory The inventory to check.
+ * @return true if the inventory is empty, false otherwise.
+ */
+bool_t inventoryIsEmpty(const inventory_t *inventory);
+
+/**
+ * Checks if the inventory has at least a certain number of items of a type.
+ * 
+ * @param inventory The inventory to check.
+ * @param type The type of item to check for.
+ * @param count Count of item to check for.
+ * @return True if contained, false otherwise.
+ */
+bool_t inventoryItemHas(
+  const inventory_t *inventory,
+  const itemtype_t type,
+  const uint8_t count
+);
+
+/**
+ * Checks if the inventory can add a certain number of items of a given type.
+ * 
+ * @param inventory The inventory to check.
+ * @param type The type of item to check for.
+ * @param count Count of item to check for.
+ * @return True if can add, false otherwise.
+ */
+bool_t inventoryItemCanAdd(
+  const inventory_t *inventory,
+  const itemtype_t type,
+  const uint8_t count
+);

src/dusk/item/itemstack.h

@@ -0,0 +1,16 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "itemtype.h"
+
+#define ITEM_STACK_COUNT_MAX 99
+
+typedef struct {
+  itemtype_t type;
+  uint8_t count;
+} itemstack_t;

src/dusk/item/itemtype.h

@@ -1,5 +1,5 @@
 /**
- * Copyright (c) 2025 Dominic Masters
+ * Copyright (c) 2026 Dominic Masters
  * 
  * This software is released under the MIT License.
  * https://opensource.org/licenses/MIT
@@ -8,6 +8,10 @@
 #pragma once
 #include "dusk.h"
 
-typedef struct {
+typedef enum {
-  void *nothing;
+  ITEM_TYPE_NULL = 0,
-} inventory_t;
+
+  ITEM_TYPE_POTION,
+
+  ITEM_TYPE_COUNT
+} itemtype_t;

src/dusk/script/module/console/moduleconsole.h

@@ -43,7 +43,7 @@ moduleBaseFunction(moduleConsoleGetVisible) {
 }
 
 moduleBaseFunction(moduleConsoleSetVisible) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   if(!jerry_value_is_boolean(args[0])) {
     return moduleBaseThrow("Console.visible: expected boolean");
   }

src/dusk/script/module/display/modulecolor.h

@@ -42,7 +42,7 @@ moduleBaseFunction(moduleColorGetA) {
 }
 
 moduleBaseFunction(moduleColorSetR) {
-  moduleBaseRequireArgs(1); moduleBaseRequireNumber(0);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");; moduleBaseRequireNumber(0);
   color_t *c = moduleColorGet(callInfo);
   if(!c) return jerry_undefined();
   c->r = (colorchannel8_t)jerry_value_as_number(args[0]);
@@ -50,7 +50,7 @@ moduleBaseFunction(moduleColorSetR) {
 }
 
 moduleBaseFunction(moduleColorSetG) {
-  moduleBaseRequireArgs(1); moduleBaseRequireNumber(0);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");; moduleBaseRequireNumber(0);
   color_t *c = moduleColorGet(callInfo);
   if(!c) return jerry_undefined();
   c->g = (colorchannel8_t)jerry_value_as_number(args[0]);
@@ -58,7 +58,7 @@ moduleBaseFunction(moduleColorSetG) {
 }
 
 moduleBaseFunction(moduleColorSetB) {
-  moduleBaseRequireArgs(1); moduleBaseRequireNumber(0);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");; moduleBaseRequireNumber(0);
   color_t *c = moduleColorGet(callInfo);
   if(!c) return jerry_undefined();
   c->b = (colorchannel8_t)jerry_value_as_number(args[0]);
@@ -66,7 +66,7 @@ moduleBaseFunction(moduleColorSetB) {
 }
 
 moduleBaseFunction(moduleColorSetA) {
-  moduleBaseRequireArgs(1); moduleBaseRequireNumber(0);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");; moduleBaseRequireNumber(0);
   color_t *c = moduleColorGet(callInfo);
   if(!c) return jerry_undefined();
   c->a = (colorchannel8_t)jerry_value_as_number(args[0]);

src/dusk/script/module/display/modulespritebatch.h

@@ -0,0 +1,169 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "script/module/modulebase.h"
+#include "script/scriptproto.h"
+#include "script/module/display/modulecolor.h"
+#include "script/module/math/modulevec2.h"
+#include "script/module/math/modulevec3.h"
+#include "display/spritebatch/spritebatch.h"
+
+static scriptproto_t MODULE_SPRITEBATCH_PROTO;
+
+moduleBaseFunction(moduleSpriteBatchGetSpriteCount) {
+  return jerry_number(SPRITEBATCH.spriteCount);
+}
+
+moduleBaseFunction(moduleSpriteBatchPush) {
+#if MESH_ENABLE_COLOR
+  if(argc < 9) return moduleBaseThrow("expected 9 arguments");
+#else
+  if(argc < 8) return moduleBaseThrow("expected 8 arguments");
+#endif
+
+  moduleBaseRequireNumber(0);
+  moduleBaseRequireNumber(1);
+  moduleBaseRequireNumber(2);
+  moduleBaseRequireNumber(3);
+
+#if MESH_ENABLE_COLOR
+  if(!jerry_value_is_object(args[4])) {
+    return moduleBaseThrow("color must be a Color object");
+  }
+  color_t *col = (color_t *)scriptProtoGetValue(&MODULE_COLOR_PROTO, args[4]);
+  if(!col) {
+    return moduleBaseThrow("color must be a Color object");
+  }
+  moduleBaseRequireNumber(5);
+  moduleBaseRequireNumber(6);
+  moduleBaseRequireNumber(7);
+  moduleBaseRequireNumber(8);
+  spriteBatchPush(
+    (float_t)jerry_value_as_number(args[0]),
+    (float_t)jerry_value_as_number(args[1]),
+    (float_t)jerry_value_as_number(args[2]),
+    (float_t)jerry_value_as_number(args[3]),
+    *col,
+    (float_t)jerry_value_as_number(args[5]),
+    (float_t)jerry_value_as_number(args[6]),
+    (float_t)jerry_value_as_number(args[7]),
+    (float_t)jerry_value_as_number(args[8])
+  );
+#else
+  moduleBaseRequireNumber(4);
+  moduleBaseRequireNumber(5);
+  moduleBaseRequireNumber(6);
+  moduleBaseRequireNumber(7);
+  spriteBatchPush(
+    (float_t)jerry_value_as_number(args[0]),
+    (float_t)jerry_value_as_number(args[1]),
+    (float_t)jerry_value_as_number(args[2]),
+    (float_t)jerry_value_as_number(args[3]),
+    (float_t)jerry_value_as_number(args[4]),
+    (float_t)jerry_value_as_number(args[5]),
+    (float_t)jerry_value_as_number(args[6]),
+    (float_t)jerry_value_as_number(args[7])
+  );
+#endif
+
+  return jerry_undefined();
+}
+
+moduleBaseFunction(moduleSpriteBatchPush3D) {
+#if MESH_ENABLE_COLOR
+  if(argc < 5) return moduleBaseThrow("expected 5 arguments");
+#else
+  if(argc < 4) return moduleBaseThrow("expected 4 arguments");
+#endif
+
+  if(!jerry_value_is_object(args[0])) {
+    return moduleBaseThrow("min must be a Vec3");
+  }
+  float_t *min = moduleVec3From(args[0]);
+  if(!min) return moduleBaseThrow("min must be a Vec3");
+
+  if(!jerry_value_is_object(args[1])) {
+    return moduleBaseThrow("max must be a Vec3");
+  }
+  float_t *max = moduleVec3From(args[1]);
+  if(!max) return moduleBaseThrow("max must be a Vec3");
+
+#if MESH_ENABLE_COLOR
+  if(!jerry_value_is_object(args[2])) {
+    return moduleBaseThrow("color must be a Color object");
+  }
+  color_t *col = (color_t *)scriptProtoGetValue(&MODULE_COLOR_PROTO, args[2]);
+  if(!col) {
+    return moduleBaseThrow("color must be a Color object");
+  }
+
+  if(!jerry_value_is_object(args[3])) {
+    return moduleBaseThrow("uvMin must be a Vec2");
+  }
+  float_t *uvMin = moduleVec2From(args[3]);
+  if(!uvMin) return moduleBaseThrow("uvMin must be a Vec2");
+
+  if(!jerry_value_is_object(args[4])) {
+    return moduleBaseThrow("uvMax must be a Vec2");
+  }
+  float_t *uvMax = moduleVec2From(args[4]);
+  if(!uvMax) return moduleBaseThrow("uvMax must be a Vec2");
+
+  spriteBatchPush3D(min, max, *col, uvMin, uvMax);
+#else
+  if(!jerry_value_is_object(args[2])) {
+    return moduleBaseThrow("uvMin must be a Vec2");
+  }
+  float_t *uvMin = moduleVec2From(args[2]);
+  if(!uvMin) return moduleBaseThrow("uvMin must be a Vec2");
+
+  if(!jerry_value_is_object(args[3])) {
+    return moduleBaseThrow("uvMax must be a Vec2");
+  }
+  float_t *uvMax = moduleVec2From(args[3]);
+  if(!uvMax) return moduleBaseThrow("uvMax must be a Vec2");
+
+  spriteBatchPush3D(min, max, uvMin, uvMax);
+#endif
+
+  return jerry_undefined();
+}
+
+moduleBaseFunction(moduleSpriteBatchClear) {
+  spriteBatchClear();
+  return jerry_undefined();
+}
+
+moduleBaseFunction(moduleSpriteBatchFlush) {
+  spriteBatchFlush();
+  return jerry_undefined();
+}
+
+static void moduleSpriteBatch(void) {
+  scriptProtoInit(
+    &MODULE_SPRITEBATCH_PROTO, "SpriteBatch", sizeof(uint8_t), NULL
+  );
+
+  scriptProtoDefineStaticProp(
+    &MODULE_SPRITEBATCH_PROTO, "spriteCount",
+    moduleSpriteBatchGetSpriteCount, NULL
+  );
+
+  scriptProtoDefineStaticFunc(
+    &MODULE_SPRITEBATCH_PROTO, "push", moduleSpriteBatchPush
+  );
+  scriptProtoDefineStaticFunc(
+    &MODULE_SPRITEBATCH_PROTO, "push3D", moduleSpriteBatchPush3D
+  );
+  scriptProtoDefineStaticFunc(
+    &MODULE_SPRITEBATCH_PROTO, "clear", moduleSpriteBatchClear
+  );
+  scriptProtoDefineStaticFunc(
+    &MODULE_SPRITEBATCH_PROTO, "flush", moduleSpriteBatchFlush
+  );
+}

src/dusk/script/module/display/moduletext.h

@@ -0,0 +1,73 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "script/module/modulebase.h"
+#include "script/scriptproto.h"
+#include "script/module/display/modulecolor.h"
+#include "display/text/text.h"
+
+static scriptproto_t MODULE_TEXT_PROTO;
+
+moduleBaseFunction(moduleTextDraw) {
+  if(argc < 3) return moduleBaseThrow("expected at least 3 arguments");
+  moduleBaseRequireNumber(0);
+  moduleBaseRequireNumber(1);
+  if(!jerry_value_is_string(args[2])) return moduleBaseThrow("text must be a string");
+
+  float_t x = (float_t)jerry_value_as_number(args[0]);
+  float_t y = (float_t)jerry_value_as_number(args[1]);
+
+  char_t text[1024];
+  moduleBaseToString(args[2], text, sizeof(text));
+
+  color_t col = COLOR_WHITE;
+  if(argc >= 4 && jerry_value_is_object(args[3])) {
+    color_t *c = (color_t *)scriptProtoGetValue(&MODULE_COLOR_PROTO, args[3]);
+    if(c) col = *c;
+  }
+
+  errorret_t err = textDraw(
+    x, y, text, col, &FONT_TILESET_DEFAULT, &FONT_TEXTURE_DEFAULT
+  );
+  if(err.code != ERROR_OK) {
+    errorCatch(errorPrint(err));
+    return moduleBaseThrow("Text draw failed");
+  }
+
+  return jerry_undefined();
+}
+
+moduleBaseFunction(moduleTextMeasure) {
+  if(argc < 1) return moduleBaseThrow("expected at least 1 argument");
+  if(!jerry_value_is_string(args[0])) return moduleBaseThrow("text must be a string");
+
+  char_t text[1024];
+  moduleBaseToString(args[0], text, sizeof(text));
+
+  int32_t w, h;
+  textMeasure(text, &FONT_TILESET_DEFAULT, &w, &h);
+
+  jerry_value_t obj = jerry_object();
+  jerry_value_t wKey = jerry_string_sz("width");
+  jerry_value_t hKey = jerry_string_sz("height");
+  jerry_value_t wVal = jerry_number(w);
+  jerry_value_t hVal = jerry_number(h);
+  jerry_object_set(obj, wKey, wVal);
+  jerry_object_set(obj, hKey, hVal);
+  jerry_value_free(wKey);
+  jerry_value_free(hKey);
+  jerry_value_free(wVal);
+  jerry_value_free(hVal);
+  return obj;
+}
+
+static void moduleText(void) {
+  scriptProtoInit(&MODULE_TEXT_PROTO, "Text", sizeof(uint8_t), NULL);
+  scriptProtoDefineStaticFunc(&MODULE_TEXT_PROTO, "draw", moduleTextDraw);
+  scriptProtoDefineStaticFunc(&MODULE_TEXT_PROTO, "measure", moduleTextMeasure);
+}

src/dusk/script/module/entity/component/moduleentitycamera.h

@@ -188,7 +188,7 @@ moduleBaseFunction(moduleEntityCameraSetProjectionType) {
 }
 
 moduleBaseFunction(moduleEntityCameraAdd) {
-  moduleBaseRequireArgs(1); moduleBaseRequireNumber(0);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");; moduleBaseRequireNumber(0);
   entityid_t id = (entityid_t)jerry_value_as_number(args[0]);
   componentid_t comp = entityAddComponent(id, COMPONENT_TYPE_CAMERA);
   componenthandle_t h = { .eid = id, .cid = comp };

src/dusk/script/module/entity/component/moduleentitymaterial.h

@@ -28,7 +28,7 @@ static entitymaterial_t * moduleEntityMaterialGet(
 }
 
 moduleBaseFunction(moduleEntityMaterialSetColor) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   if(!jerry_value_is_object(args[0])) {
     return moduleBaseThrow("expected color object");
   }
@@ -68,7 +68,7 @@ moduleBaseFunction(moduleEntityMaterialSetColor) {
 }
 
 moduleBaseFunction(moduleEntityMaterialAdd) {
-  moduleBaseRequireArgs(1); moduleBaseRequireNumber(0);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");; moduleBaseRequireNumber(0);
   entityid_t id = (entityid_t)jerry_value_as_number(args[0]);
   componentid_t comp = entityAddComponent(id, COMPONENT_TYPE_MATERIAL);
   componenthandle_t h = { .eid = id, .cid = comp };

src/dusk/script/module/entity/component/moduleentitymesh.h

@@ -25,7 +25,7 @@ static entitymesh_t * moduleEntityMeshGet(
 }
 
 moduleBaseFunction(moduleEntityMeshAdd) {
-  moduleBaseRequireArgs(1); moduleBaseRequireNumber(0);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");; moduleBaseRequireNumber(0);
   entityid_t id = (entityid_t)jerry_value_as_number(args[0]);
   componentid_t comp = entityAddComponent(id, COMPONENT_TYPE_MESH);
   componenthandle_t h = { .eid = id, .cid = comp };

src/dusk/script/module/entity/component/moduleentityphysics.h

@@ -32,7 +32,7 @@ moduleBaseFunction(moduleEntityPhysicsGetVelocity) {
 }
 
 moduleBaseFunction(moduleEntityPhysicsSetVelocity) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   entityphysics_t *phys = moduleEntityPhysicsGet(callInfo);
   if(!phys) return jerry_undefined();
   vec3 v;
@@ -56,7 +56,7 @@ moduleBaseFunction(moduleEntityPhysicsGetBodyType) {
 }
 
 moduleBaseFunction(moduleEntityPhysicsSetBodyType) {
-  moduleBaseRequireArgs(1); moduleBaseRequireNumber(0);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");; moduleBaseRequireNumber(0);
   entityphysics_t *phys = moduleEntityPhysicsGet(callInfo);
   if(!phys) return jerry_undefined();
   phys->type = (physicsbodytype_t)(int32_t)jerry_value_as_number(args[0]);
@@ -64,7 +64,7 @@ moduleBaseFunction(moduleEntityPhysicsSetBodyType) {
 }
 
 moduleBaseFunction(moduleEntityPhysicsApplyImpulse) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   entityphysics_t *phys = moduleEntityPhysicsGet(callInfo);
   if(!phys) return jerry_undefined();
   if(phys->type == PHYSICS_BODY_STATIC) return jerry_undefined();
@@ -77,7 +77,7 @@ moduleBaseFunction(moduleEntityPhysicsApplyImpulse) {
 }
 
 moduleBaseFunction(moduleEntityPhysicsSetShapeCube) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   entityphysics_t *phys = moduleEntityPhysicsGet(callInfo);
   if(!phys) return jerry_undefined();
   vec3 half;
@@ -90,7 +90,7 @@ moduleBaseFunction(moduleEntityPhysicsSetShapeCube) {
 }
 
 moduleBaseFunction(moduleEntityPhysicsSetShapeSphere) {
-  moduleBaseRequireArgs(1); moduleBaseRequireNumber(0);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");; moduleBaseRequireNumber(0);
   entityphysics_t *phys = moduleEntityPhysicsGet(callInfo);
   if(!phys) return jerry_undefined();
   phys->shape.type = PHYSICS_SHAPE_SPHERE;
@@ -99,7 +99,7 @@ moduleBaseFunction(moduleEntityPhysicsSetShapeSphere) {
 }
 
 moduleBaseFunction(moduleEntityPhysicsSetShapeCapsule) {
-  moduleBaseRequireArgs(2);
+  if(argc < 2) return moduleBaseThrow("Expected at least 2 arguments");;
   moduleBaseRequireNumber(0); moduleBaseRequireNumber(1);
   entityphysics_t *phys = moduleEntityPhysicsGet(callInfo);
   if(!phys) return jerry_undefined();
@@ -111,7 +111,7 @@ moduleBaseFunction(moduleEntityPhysicsSetShapeCapsule) {
 }
 
 moduleBaseFunction(moduleEntityPhysicsSetShapePlane) {
-  moduleBaseRequireArgs(2); moduleBaseRequireNumber(1);
+  if(argc < 2) return moduleBaseThrow("Expected at least 2 arguments");; moduleBaseRequireNumber(1);
   entityphysics_t *phys = moduleEntityPhysicsGet(callInfo);
   if(!phys) return jerry_undefined();
   vec3 normal;
@@ -125,7 +125,7 @@ moduleBaseFunction(moduleEntityPhysicsSetShapePlane) {
 }
 
 moduleBaseFunction(moduleEntityPhysicsAdd) {
-  moduleBaseRequireArgs(1); moduleBaseRequireNumber(0);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");; moduleBaseRequireNumber(0);
   entityid_t id = (entityid_t)jerry_value_as_number(args[0]);
   componentid_t comp = entityAddComponent(id, COMPONENT_TYPE_PHYSICS);
   componenthandle_t h = { .eid = id, .cid = comp };

src/dusk/script/module/entity/component/moduleentityposition.h

@@ -42,7 +42,7 @@ moduleBaseFunction(moduleEntityPositionGetPosition) {
 }
 
 moduleBaseFunction(moduleEntityPositionSetPosition) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   entityposition_t *pos = moduleEntityPositionGet(callInfo);
   if(!pos) return jerry_undefined();
   vec3 v;
@@ -63,7 +63,7 @@ moduleBaseFunction(moduleEntityPositionGetRotation) {
 }
 
 moduleBaseFunction(moduleEntityPositionSetRotation) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   entityposition_t *pos = moduleEntityPositionGet(callInfo);
   if(!pos) return jerry_undefined();
   vec3 v;
@@ -84,7 +84,7 @@ moduleBaseFunction(moduleEntityPositionGetScale) {
 }
 
 moduleBaseFunction(moduleEntityPositionSetScale) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   entityposition_t *pos = moduleEntityPositionGet(callInfo);
   if(!pos) return jerry_undefined();
   vec3 v;
@@ -97,7 +97,7 @@ moduleBaseFunction(moduleEntityPositionSetScale) {
 }
 
 moduleBaseFunction(moduleEntityPositionLookAt) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   entityposition_t *pos = moduleEntityPositionGet(callInfo);
   if(!pos) return jerry_undefined();
   vec3 target;
@@ -114,7 +114,7 @@ moduleBaseFunction(moduleEntityPositionLookAt) {
 }
 
 moduleBaseFunction(moduleEntityPositionAdd) {
-  moduleBaseRequireArgs(1); moduleBaseRequireNumber(0);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");; moduleBaseRequireNumber(0);
   entityid_t id = (entityid_t)jerry_value_as_number(args[0]);
   componentid_t comp = entityAddComponent(id, COMPONENT_TYPE_POSITION);
   componenthandle_t h = { .eid = id, .cid = comp };

src/dusk/script/module/input/moduleinput.h

@@ -15,7 +15,7 @@ static scriptproto_t MODULE_INPUT_PROTO;
 
 // Static Methods
 moduleBaseFunction(moduleInputBind) {
-  moduleBaseRequireArgs(2);
+  if(argc < 2) return moduleBaseThrow("Expected at least 2 arguments");;
   moduleBaseRequireString(0);
   moduleBaseRequireNumber(1);
 
@@ -40,7 +40,7 @@ moduleBaseFunction(moduleInputBind) {
 }
 
 moduleBaseFunction(moduleInputIsDown) {
-  moduleBaseRequireArgs(1); moduleBaseRequireNumber(0);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");; moduleBaseRequireNumber(0);
   const inputaction_t action = (inputaction_t)jerry_value_as_number(args[0]);
   if(action <= INPUT_ACTION_NULL || action >= INPUT_ACTION_COUNT) {
     return moduleBaseThrow("Input.isDown: invalid action");
@@ -49,7 +49,7 @@ moduleBaseFunction(moduleInputIsDown) {
 }
 
 moduleBaseFunction(moduleInputPressed) {
-  moduleBaseRequireArgs(1); moduleBaseRequireNumber(0);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");; moduleBaseRequireNumber(0);
   const inputaction_t action = (inputaction_t)jerry_value_as_number(args[0]);
   if(action <= INPUT_ACTION_NULL || action >= INPUT_ACTION_COUNT) {
     return moduleBaseThrow("Input.pressed: invalid action");
@@ -58,7 +58,7 @@ moduleBaseFunction(moduleInputPressed) {
 }
 
 moduleBaseFunction(moduleInputReleased) {
-  moduleBaseRequireArgs(1); moduleBaseRequireNumber(0);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");; moduleBaseRequireNumber(0);
   const inputaction_t action = (inputaction_t)jerry_value_as_number(args[0]);
   if(action <= INPUT_ACTION_NULL || action >= INPUT_ACTION_COUNT) {
     return moduleBaseThrow("Input.released: invalid action");
@@ -67,7 +67,7 @@ moduleBaseFunction(moduleInputReleased) {
 }
 
 moduleBaseFunction(moduleInputGetValue) {
-  moduleBaseRequireArgs(1); moduleBaseRequireNumber(0);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");; moduleBaseRequireNumber(0);
   const inputaction_t action = (inputaction_t)jerry_value_as_number(args[0]);
   if(action <= INPUT_ACTION_NULL || action >= INPUT_ACTION_COUNT) {
     return moduleBaseThrow("Input.getValue: invalid action");
@@ -76,7 +76,7 @@ moduleBaseFunction(moduleInputGetValue) {
 }
 
 moduleBaseFunction(moduleInputAxis) {
-  moduleBaseRequireArgs(2);
+  if(argc < 2) return moduleBaseThrow("Expected at least 2 arguments");;
   moduleBaseRequireNumber(0); moduleBaseRequireNumber(1);
   const inputaction_t neg = (inputaction_t)jerry_value_as_number(args[0]);
   const inputaction_t pos = (inputaction_t)jerry_value_as_number(args[1]);
@@ -90,7 +90,7 @@ moduleBaseFunction(moduleInputAxis) {
 }
 
 moduleBaseFunction(moduleInputAxis2D) {
-  moduleBaseRequireArgs(4);
+  if(argc < 4) return moduleBaseThrow("Expected at least 4 arguments");;
   moduleBaseRequireNumber(0); moduleBaseRequireNumber(1);
   moduleBaseRequireNumber(2); moduleBaseRequireNumber(3);
   const inputaction_t negX = (inputaction_t)jerry_value_as_number(args[0]);

src/dusk/script/module/math/modulemat4.h

@@ -28,7 +28,7 @@ moduleBaseFunction(moduleMatConstructor) {
 }
 
 moduleBaseFunction(moduleMatMul) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   float_t (*a)[4] = (float_t (*)[4])moduleMatGet(callInfo);
   if(!a) return moduleBaseThrow("Mat4.mul: invalid this");
   float_t (*b)[4] = (float_t (*)[4])scriptProtoGetValue(
@@ -63,7 +63,7 @@ moduleBaseFunction(moduleMatDeterminant) {
 }
 
 moduleBaseFunction(moduleMatMulVec3) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   float_t (*m)[4] = (float_t (*)[4])moduleMatGet(callInfo);
   if(!m) return moduleBaseThrow("Mat4.mulVec3: invalid this");
   vec3 vin;
@@ -78,7 +78,7 @@ moduleBaseFunction(moduleMatMulVec3) {
 }
 
 moduleBaseFunction(moduleMatMulVec4) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   float_t (*m)[4] = (float_t (*)[4])moduleMatGet(callInfo);
   if(!m) return moduleBaseThrow("Mat4.mulVec4: invalid this");
   vec4 vin;
@@ -91,7 +91,7 @@ moduleBaseFunction(moduleMatMulVec4) {
 }
 
 moduleBaseFunction(moduleMatTranslate) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   float_t (*m)[4] = (float_t (*)[4])moduleMatGet(callInfo);
   if(!m) return moduleBaseThrow("Mat4.translate: invalid this");
   vec3 tv;
@@ -105,7 +105,7 @@ moduleBaseFunction(moduleMatTranslate) {
 }
 
 moduleBaseFunction(moduleMatScale) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   float_t (*m)[4] = (float_t (*)[4])moduleMatGet(callInfo);
   if(!m) return moduleBaseThrow("Mat4.scale: invalid this");
   vec3 sv;
@@ -125,7 +125,7 @@ moduleBaseFunction(moduleMatStaticIdentity) {
 }
 
 moduleBaseFunction(moduleMatStaticPerspective) {
-  moduleBaseRequireArgs(4);
+  if(argc < 4) return moduleBaseThrow("Expected at least 4 arguments");;
   moduleBaseRequireNumber(0); moduleBaseRequireNumber(1);
   moduleBaseRequireNumber(2); moduleBaseRequireNumber(3);
   mat4 r;
@@ -140,7 +140,7 @@ moduleBaseFunction(moduleMatStaticPerspective) {
 }
 
 moduleBaseFunction(moduleMatStaticLookAt) {
-  moduleBaseRequireArgs(3);
+  if(argc < 3) return moduleBaseThrow("Expected at least 3 arguments");;
   vec3 eye, center, up;
   if(!moduleVec3Check(args[0], eye)) {
     return moduleBaseThrow("Mat4.lookAt: eye must be a Vec3");

src/dusk/script/module/math/modulevec2.h

@@ -55,7 +55,7 @@ moduleBaseFunction(moduleVec2SetY) {
 }
 
 moduleBaseFunction(moduleVec2Dot) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   float_t *a = moduleVec2Get(callInfo);
   if(!a) return moduleBaseThrow("Vec2.dot: invalid this");
   float_t *b = moduleVec2From(args[0]);
@@ -92,7 +92,7 @@ moduleBaseFunction(moduleVec2Negate) {
 }
 
 moduleBaseFunction(moduleVec2Add) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   float_t *a = moduleVec2Get(callInfo);
   if(!a) return moduleBaseThrow("Vec2.add: invalid this");
   float_t *b = moduleVec2From(args[0]);
@@ -103,7 +103,7 @@ moduleBaseFunction(moduleVec2Add) {
 }
 
 moduleBaseFunction(moduleVec2Sub) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   float_t *a = moduleVec2Get(callInfo);
   if(!a) return moduleBaseThrow("Vec2.sub: invalid this");
   float_t *b = moduleVec2From(args[0]);
@@ -114,7 +114,7 @@ moduleBaseFunction(moduleVec2Sub) {
 }
 
 moduleBaseFunction(moduleVec2Scale) {
-  moduleBaseRequireArgs(1); moduleBaseRequireNumber(0);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");; moduleBaseRequireNumber(0);
   float_t *v = moduleVec2Get(callInfo);
   if(!v) return moduleBaseThrow("Vec2.scale: invalid this");
   vec2 r;
@@ -123,7 +123,7 @@ moduleBaseFunction(moduleVec2Scale) {
 }
 
 moduleBaseFunction(moduleVec2Lerp) {
-  moduleBaseRequireArgs(2); moduleBaseRequireNumber(1);
+  if(argc < 2) return moduleBaseThrow("Expected at least 2 arguments");; moduleBaseRequireNumber(1);
   float_t *a = moduleVec2Get(callInfo);
   if(!a) return moduleBaseThrow("Vec2.lerp: invalid this");
   float_t *b = moduleVec2From(args[0]);
@@ -134,7 +134,7 @@ moduleBaseFunction(moduleVec2Lerp) {
 }
 
 moduleBaseFunction(moduleVec2Distance) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   float_t *a = moduleVec2Get(callInfo);
   if(!a) return moduleBaseThrow("Vec2.distance: invalid this");
   float_t *b = moduleVec2From(args[0]);

src/dusk/script/module/math/modulevec3.h

@@ -67,7 +67,7 @@ moduleBaseFunction(moduleVec3SetZ) {
 }
 
 moduleBaseFunction(moduleVec3Dot) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   float_t *a = moduleVec3Get(callInfo);
   if(!a) return moduleBaseThrow("Vec3.dot: invalid this");
   float_t *b = moduleVec3From(args[0]);
@@ -76,7 +76,7 @@ moduleBaseFunction(moduleVec3Dot) {
 }
 
 moduleBaseFunction(moduleVec3Cross) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   float_t *a = moduleVec3Get(callInfo);
   if(!a) return moduleBaseThrow("Vec3.cross: invalid this");
   float_t *b = moduleVec3From(args[0]);
@@ -115,7 +115,7 @@ moduleBaseFunction(moduleVec3Negate) {
 }
 
 moduleBaseFunction(moduleVec3Add) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   float_t *a = moduleVec3Get(callInfo);
   if(!a) return moduleBaseThrow("Vec3.add: invalid this");
   float_t *b = moduleVec3From(args[0]);
@@ -126,7 +126,7 @@ moduleBaseFunction(moduleVec3Add) {
 }
 
 moduleBaseFunction(moduleVec3Sub) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   float_t *a = moduleVec3Get(callInfo);
   if(!a) return moduleBaseThrow("Vec3.sub: invalid this");
   float_t *b = moduleVec3From(args[0]);
@@ -137,7 +137,7 @@ moduleBaseFunction(moduleVec3Sub) {
 }
 
 moduleBaseFunction(moduleVec3Scale) {
-  moduleBaseRequireArgs(1); moduleBaseRequireNumber(0);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");; moduleBaseRequireNumber(0);
   float_t *v = moduleVec3Get(callInfo);
   if(!v) return moduleBaseThrow("Vec3.scale: invalid this");
   vec3 r;
@@ -146,7 +146,7 @@ moduleBaseFunction(moduleVec3Scale) {
 }
 
 moduleBaseFunction(moduleVec3Lerp) {
-  moduleBaseRequireArgs(2); moduleBaseRequireNumber(1);
+  if(argc < 2) return moduleBaseThrow("Expected at least 2 arguments");; moduleBaseRequireNumber(1);
   float_t *a = moduleVec3Get(callInfo);
   if(!a) return moduleBaseThrow("Vec3.lerp: invalid this");
   float_t *b = moduleVec3From(args[0]);
@@ -157,7 +157,7 @@ moduleBaseFunction(moduleVec3Lerp) {
 }
 
 moduleBaseFunction(moduleVec3Distance) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   float_t *a = moduleVec3Get(callInfo);
   if(!a) return moduleBaseThrow("Vec3.distance: invalid this");
   float_t *b = moduleVec3From(args[0]);

src/dusk/script/module/math/modulevec4.h

@@ -121,7 +121,7 @@ moduleBaseFunction(moduleVec4SetV1) {
 }
 
 moduleBaseFunction(moduleVec4Dot) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   float_t *a = moduleVec4Get(callInfo);
   if(!a) return moduleBaseThrow("Vec4.dot: invalid this");
   float_t *b = moduleVec4From(args[0]);
@@ -158,7 +158,7 @@ moduleBaseFunction(moduleVec4Negate) {
 }
 
 moduleBaseFunction(moduleVec4Add) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   float_t *a = moduleVec4Get(callInfo);
   if(!a) return moduleBaseThrow("Vec4.add: invalid this");
   float_t *b = moduleVec4From(args[0]);
@@ -169,7 +169,7 @@ moduleBaseFunction(moduleVec4Add) {
 }
 
 moduleBaseFunction(moduleVec4Sub) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   float_t *a = moduleVec4Get(callInfo);
   if(!a) return moduleBaseThrow("Vec4.sub: invalid this");
   float_t *b = moduleVec4From(args[0]);
@@ -180,7 +180,7 @@ moduleBaseFunction(moduleVec4Sub) {
 }
 
 moduleBaseFunction(moduleVec4Scale) {
-  moduleBaseRequireArgs(1); moduleBaseRequireNumber(0);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");; moduleBaseRequireNumber(0);
   float_t *v = moduleVec4Get(callInfo);
   if(!v) return moduleBaseThrow("Vec4.scale: invalid this");
   vec4 r;
@@ -189,7 +189,7 @@ moduleBaseFunction(moduleVec4Scale) {
 }
 
 moduleBaseFunction(moduleVec4Lerp) {
-  moduleBaseRequireArgs(2); moduleBaseRequireNumber(1);
+  if(argc < 2) return moduleBaseThrow("Expected at least 2 arguments");; moduleBaseRequireNumber(1);
   float_t *a = moduleVec4Get(callInfo);
   if(!a) return moduleBaseThrow("Vec4.lerp: invalid this");
   float_t *b = moduleVec4From(args[0]);

src/dusk/script/module/module.h

@@ -14,6 +14,8 @@
 #include "script/module/time/moduletime.h"
 #include "script/module/display/modulecolor.h"
 #include "script/module/display/modulescreen.h"
+#include "script/module/display/modulespritebatch.h"
+#include "script/module/display/moduletext.h"
 #include "script/module/scene/modulescene.h"
 #include "script/module/console/moduleconsole.h"
 #include "script/module/engine/moduleengine.h"
@@ -27,6 +29,8 @@ static void moduleRegister(void) {
   moduleTime();
   moduleColor();
   moduleScreen();
+  moduleSpriteBatch();
+  moduleText();
   moduleScene();
   moduleConsole();
   moduleEngine();

src/dusk/script/module/modulebase.h

@@ -213,14 +213,6 @@ static void moduleBaseCreateGlobalObject(
   jerry_value_free(global);
 }
 
-/**
- * Assert at least n arguments were passed; return type error if not.
- */
-#define moduleBaseRequireArgs(n) \
-  if((argc) < (n)) { \
-    return moduleBaseThrow("Expected at least " #n " arguments"); \
-  }
-
 /**
  * Assert an argument is a number; return type error if not.
  */

src/dusk/script/module/scene/modulescene.h

@@ -25,7 +25,7 @@ moduleBaseFunction(moduleSceneDefaultConstructor) {
 }
 
 moduleBaseFunction(moduleSceneSet) {
-  moduleBaseRequireArgs(1);
+  if(argc < 1) return moduleBaseThrow("Expected at least 1 argument");;
   moduleBaseRequireString(0);
 
   char_t name[ASSET_FILE_PATH_MAX];

src/dusk/script/module/script/moduleinclude.h

@@ -7,6 +7,7 @@
 
 #pragma once
 #include "script/module/modulebase.h"
+#include "script/scriptmanager.h"
 
 moduleBaseFunction(moduleIncludeInclude) {
   if(argc < 1 || !jerry_value_is_string(args[0])) {
@@ -25,32 +26,9 @@ moduleBaseFunction(moduleIncludeInclude) {
     return moduleBaseThrow("include: filename must end with .js");
   }
 
-  char_t buffer[1024];
+  jerry_value_t moduleVal = 0;
-  stringCopy(buffer, filename, sizeof(buffer));
+  errorret_t err = scriptInclude(filename, &moduleVal);
-
-  // Save and reset 'export' so the included module gets a clean undefined
-  // default. Saving lets nested includes each have their own export scope.
-  jerry_value_t global = jerry_current_realm();
-  jerry_value_t moduleKey = jerry_string_sz("module");
-  jerry_value_t prevModule = jerry_object_get(global, moduleKey);
-  jerry_value_t undef = jerry_undefined();
-  jerry_object_set(global, moduleKey, undef);
-  jerry_value_free(undef);
-
-  jerry_value_t result = 0;
-  errorret_t err = scriptManagerExecFile(buffer, &result);
-  if(result != 0) jerry_value_free(result);
-
-  // Capture whatever the module assigned to 'module', then restore the
-  // caller's value so nested includes don't clobber each other.
-  jerry_value_t moduleVal = jerry_object_get(global, moduleKey);
-  jerry_object_set(global, moduleKey, prevModule);
-  jerry_value_free(prevModule);
-  jerry_value_free(moduleKey);
-  jerry_value_free(global);
-
   if(err.code != ERROR_OK) {
-    jerry_value_free(moduleVal);
     errorCatch(errorPrint(err));
     return moduleBaseThrow("Failed to include script file");
   }

src/dusk/script/scriptmanager.c

@@ -77,6 +77,40 @@ errorret_t scriptManagerExecFile(
   return assetScriptLoad(fname, resultOut);
 }
 
+errorret_t scriptInclude(const char_t *filename, jerry_value_t *out) {
+  assertNotNull(filename, "Filename cannot be NULL");
+
+  jerry_value_t global = jerry_current_realm();
+  jerry_value_t moduleKey = jerry_string_sz("module");
+
+  jerry_value_t prevModule = jerry_object_get(global, moduleKey);
+  jerry_value_t undef = jerry_undefined();
+  jerry_object_set(global, moduleKey, undef);
+  jerry_value_free(undef);
+
+  jerry_value_t execResult = 0;
+  errorret_t err = scriptManagerExecFile(filename, &execResult);
+  if(execResult != 0) jerry_value_free(execResult);
+
+  jerry_value_t moduleVal = jerry_object_get(global, moduleKey);
+  jerry_object_set(global, moduleKey, prevModule);
+  jerry_value_free(prevModule);
+  jerry_value_free(moduleKey);
+  jerry_value_free(global);
+
+  if(err.code != ERROR_OK) {
+    jerry_value_free(moduleVal);
+    return err;
+  }
+
+  if(out != NULL) {
+    *out = moduleVal;
+  } else {
+    jerry_value_free(moduleVal);
+  }
+  errorOk();
+}
+
 errorret_t scriptManagerDispose(void) {
   jerry_cleanup();
   errorOk();

src/dusk/script/scriptmanager.h

@@ -56,6 +56,18 @@ errorret_t scriptManagerExecFile(
   jerry_value_t *result
 );
 
+/**
+ * Execute a JS file using the module-export pattern and return the exported
+ * value. The script is expected to assign its public API to the global
+ * `module` variable. The caller owns the returned jerry_value_t and must
+ * call jerry_value_free() on it when done.
+ *
+ * @param filename  Path to the .js asset file.
+ * @param out       Receives the value assigned to `module` by the script.
+ * @return The error return value.
+ */
+errorret_t scriptInclude(const char_t *filename, jerry_value_t *out);
+
 /**
  * Dispose of the script manager.
  *

src/dusk/ui/CMakeLists.txt

@@ -8,4 +8,5 @@ target_sources(${DUSK_LIBRARY_TARGET_NAME}
   PUBLIC
     ui.c
     uifps.c
+    uielement.c
 )

src/dusk/ui/ui.c

@@ -10,13 +10,20 @@
 #include "assert/assert.h"
 #include "display/spritebatch/spritebatch.h"
 #include "display/screen/screen.h"
-#include "ui/uifps.h"
+#include "ui/uielement.h"
-#include "console/console.h"
+#include "log/log.h"
 
 ui_t UI;
 
 errorret_t uiInit(void) {
   memoryZero(&UI, sizeof(ui_t));
+
+  uielement_t *element = &UI_ELEMENTS[0];
+  while(element->type != UI_ELEMENT_TYPE_NULL) {
+    errorChain(uiElementInit(element));
+    element++;
+  }
+
   errorOk();
 }
 
@@ -24,10 +31,16 @@ void uiUpdate(void) {
 }
 
 errorret_t uiRender(void) {
-  errorChain(uiFPSDraw());
+  const uielement_t *element = &UI_ELEMENTS[0];
-  errorChain(spriteBatchFlush());
+  while(element->type != UI_ELEMENT_TYPE_NULL) {
-  errorChain(consoleDraw());
+    errorChain(uiElementDraw(element));
-  errorChain(spriteBatchFlush());
+
+    if(SPRITEBATCH.spriteCount > 0) {
+      logDebug("Finished UI element but unflushed sprites remain.\n");
+    }
+
+    element++;
+  }
 
   errorOk();
 }

src/dusk/ui/uielement.c

@@ -0,0 +1,74 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uielement.h"
+#include "assert/assert.h"
+#include "script/scriptmanager.h"
+#include "console/console.h"
+#include "ui/uifps.h"
+
+uielement_t UI_ELEMENTS[] = {
+  { .type = UI_ELEMENT_TYPE_NATIVE, .native = { .draw = consoleDraw } },
+  { .type = UI_ELEMENT_TYPE_NATIVE, .native = { .draw = uiFPSDraw } },
+  { .type = UI_ELEMENT_TYPE_SCRIPT, .script = { .script = "ui/test.js" } },
+
+  { .type = UI_ELEMENT_TYPE_NULL },
+};
+
+errorret_t uiElementInit(uielement_t *element) {
+  assertNotNull(element, "element must not be NULL");
+
+  if(element->type == UI_ELEMENT_TYPE_SCRIPT) {
+    errorChain(scriptInclude(element->script.script, &element->script.module));
+  }
+
+  errorOk();
+}
+
+errorret_t uiElementDraw(const uielement_t *element) {
+  switch(element->type) {
+    case UI_ELEMENT_TYPE_NATIVE:
+      errorChain(element->native.draw());
+      break;
+
+    case UI_ELEMENT_TYPE_SCRIPT: {
+      jerry_value_t renderKey = jerry_string_sz("render");
+      jerry_value_t renderFn = jerry_object_get(element->script.module, renderKey);
+      jerry_value_free(renderKey);
+
+      if(!jerry_value_is_function(renderFn)) {
+        jerry_value_free(renderFn);
+        errorThrow("UI script module has no render function");
+      }
+
+      jerry_value_t ret = jerry_call(renderFn, element->script.module, NULL, 0);
+      jerry_value_free(renderFn);
+
+      if(jerry_value_is_exception(ret)) {
+        jerry_value_t errVal = jerry_exception_value(ret, false);
+        jerry_value_t errStr = jerry_value_to_string(errVal);
+        char_t buf[256];
+        jerry_size_t len = jerry_string_to_buffer(
+          errStr, JERRY_ENCODING_UTF8, (jerry_char_t *)buf, sizeof(buf) - 1
+        );
+        buf[len] = '\0';
+        jerry_value_free(errStr);
+        jerry_value_free(errVal);
+        jerry_value_free(ret);
+        errorThrow("UI script render error: %s", buf);
+      }
+
+      jerry_value_free(ret);
+      break;
+    }
+
+    default:
+      assertUnreachable("Invalid UI element type");
+  }
+
+  errorOk();
+}

src/dusk/ui/uielement.h

@@ -0,0 +1,46 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+
+typedef enum {
+  UI_ELEMENT_TYPE_NULL,
+  UI_ELEMENT_TYPE_NATIVE,
+  UI_ELEMENT_TYPE_SCRIPT,
+  UI_ELEMENT_TYPE_COUNT
+} uielementtype_t;
+
+typedef struct {
+  uielementtype_t type;
+  
+  union {
+    struct {
+      errorret_t (*draw)();
+    } native;
+
+    struct {
+      const char_t *script;
+      jerry_value_t module;
+    } script;
+  };
+} uielement_t;
+
+extern uielement_t UI_ELEMENTS[];
+
+/**
+ * Initializes a UI element.
+ */
+errorret_t uiElementInit(uielement_t *element);
+
+/**
+ * Draws a UI element.
+ * 
+ * @param element The element to render.
+ * @return Any error that occurs.
+ */
+errorret_t uiElementDraw(const uielement_t *element);

src/dusk/ui/uifps.c

@@ -53,6 +53,6 @@ errorret_t uiFPSDraw() {
     fpsText, textColor,
     &FONT_TILESET_DEFAULT, &FONT_TEXTURE_DEFAULT
   ));
-
+  
-  errorOk();
+  return spriteBatchFlush();
 }