initial commit

1 files changed, 63 insertions, 0 deletions

diff --git a/src/Inventory.h b/src/Inventory.h
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+++ b/src/Inventory.h
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+#ifndef CC_INVENTORY_H
+#define CC_INVENTORY_H
+#include "Core.h"
+#include "BlockID.h"
+
+/* Manages inventory hotbar, and ordering of blocks in the inventory menu.
+   Copyright 2014-2023 ClassiCube | Licensed under BSD-3
+*/
+struct IGameComponent;
+extern struct IGameComponent Inventory_Component;
+
+/* Number of blocks in each hotbar */
+#define INVENTORY_BLOCKS_PER_HOTBAR 9
+/* Number of hotbars that can be selected between */
+#define INVENTORY_HOTBARS 9
+#define HOTBAR_MAX_INDEX (INVENTORY_BLOCKS_PER_HOTBAR - 1)
+
+CC_VAR extern struct _InventoryData {
+	/* Stores the currently bound blocks for all hotbars. */
+	BlockID Table[INVENTORY_HOTBARS * INVENTORY_BLOCKS_PER_HOTBAR];
+	/* Mapping of indices in inventory menu to block IDs. */
+	BlockID Map[BLOCK_COUNT];
+	/* Currently selected index within a hotbar. */
+	int SelectedIndex;
+	/* Currently selected hotbar. */
+	int Offset;
+	/* Whether the user is allowed to change selected/held block. */
+	cc_bool CanChangeSelected;
+	/* Number of blocks in each row in inventory menu. */
+	cc_uint8 BlocksPerRow;
+} Inventory;
+
+/* Gets the block at the nth index in the current hotbar. */
+#define Inventory_Get(idx) (Inventory.Table[Inventory.Offset + (idx)])
+/* Sets the block at the nth index in the current hotbar. */
+#define Inventory_Set(idx, block) Inventory.Table[Inventory.Offset + (idx)] = block
+/* Gets the currently selected block. */
+#define Inventory_SelectedBlock Inventory_Get(Inventory.SelectedIndex)
+
+/* Checks if the user can change their selected/held block. */
+/* NOTE: Shows a message in chat if they are unable to. */
+cc_bool Inventory_CheckChangeSelected(void);
+/* Attempts to set the currently selected index in a hotbar. */
+void Inventory_SetSelectedIndex(int index);
+/* Attempts to set the currently active hotbar. */
+void Inventory_SetHotbarIndex(int index);
+void Inventory_SwitchHotbar(void);
+/* Attempts to set the block for the selected index in the current hotbar. */
+/* NOTE: If another slot is already this block, the selected index is instead changed. */
+void Inventory_SetSelectedBlock(BlockID block);
+/* Attempts to set the selected block in a user-friendly manner. */
+/* e.g. this method tries to replace empty slots before other blocks */
+void Inventory_PickBlock(BlockID block);
+/* Sets all slots to contain their default associated block. */
+/* NOTE: The order of default blocks may not be in order of ID. */
+void Inventory_ResetMapping(void);
+
+/* Inserts the given block at its default slot in the inventory. */
+/* NOTE: Replaces (doesn't move) the block that was at that slot before. */
+void Inventory_AddDefault(BlockID block);
+/* Removes any slots with the given block from the inventory. */
+void Inventory_Remove(BlockID block);
+#endif