421 lines
16 KiB
C
421 lines
16 KiB
C
#include "models/items.h"
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void PickItem(ecs_iter_t *it) {
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Position *p = ecs_field(it, Position, 2);
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Inventory *inv = ecs_field(it, Inventory, 3);
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for (int i = 0; i < it->count; i++) {
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if (inv[i].pickup_time > game_time()) continue;
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size_t ents_count;
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int64_t *ents = world_chunk_query_entities(it->entities[i], &ents_count, 2);
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bool picked = false;
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for (size_t j = 0; j < ents_count; j++) {
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Item *drop = 0;
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uint64_t ent_id = ents[j];
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if ((drop = ecs_get_mut_if(it->world, ent_id, Item))) {
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Position *p2 = ecs_get_mut(it->world, ent_id, Position);
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Velocity *v2 = ecs_get_mut(it->world, ent_id, Velocity);
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float dx = p2->x - p[i].x;
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float dy = p2->y - p[i].y;
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float range = zpl_sqrt(dx*dx + dy*dy);
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if (range <= game_rules.item_pick_radius) {
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uint16_t drop_id = item_find(drop->kind);
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for (size_t k = 0; k < ITEMS_INVENTORY_SIZE; k += 1) {
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ecs_entity_t item_slot_ent = inv[i].items[k];
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Item *item = item_get_data(item_slot_ent);
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uint16_t item_id = item ? item_find(item->kind) : 0;
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if (!item || (item_id != ASSET_INVALID && (item->kind == drop->kind && item->durability == drop->durability) && item->quantity < item_max_quantity(drop_id))) {
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if (item) {
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uint32_t picked_count = zpl_max(0, (int32_t)drop->quantity);
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picked_count = zpl_clamp(picked_count, 0, item_max_quantity(drop_id) - item->quantity);
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item->quantity += picked_count;
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drop->quantity -= picked_count;
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item->kind = drop->kind;
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if (drop->quantity == 0)
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item_despawn(ent_id);
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} else if (!world_entity_valid(item_slot_ent)) {
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entity_wake(ent_id);
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item_show(ent_id, false);
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inv[i].items[k] = ent_id;
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}
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picked = true;
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break;
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}
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}
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} else if (range <= game_rules.item_attract_radius) {
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v2->x = (p[i].x - p2->x) * game_rules.item_attract_force;
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v2->y = (p[i].y - p2->y) * game_rules.item_attract_force;
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}
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}
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if (picked) break;
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}
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}
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}
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void CraftItem(ecs_iter_t *it) {
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Input *in = ecs_field(it, Input, 1);
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for (int i = 0; i < it->count; i++) {
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if (in[i].craft_item == 0) continue;
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if (world_entity_valid(in[i].storage_ent)){
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Producer *ic = 0;
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if ((ic = ecs_get_mut_if(it->world, in[i].storage_ent, Producer))){
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ic->target_item = in[i].craft_item;
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if (ic->pending_task == PRODUCER_CRAFT_WAITING) {
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ic->pending_task = PRODUCER_CRAFT_ENQUEUED;
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}
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in[i].craft_item = 0;
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}
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}
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}
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}
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void DropItem(ecs_iter_t *it) {
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Input *in = ecs_field(it, Input, 1);
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Position *p = ecs_field(it, Position, 2);
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Inventory *inv = ecs_field(it, Inventory, 3);
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for (int i = 0; i < it->count; i++) {
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if (!in[i].drop) continue;
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ecs_entity_t *items = inv[i].items;
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if (in[i].storage_action){
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if (world_entity_valid(in[i].storage_ent)){
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ItemContainer *ic = 0;
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if ((ic = ecs_get_mut_if(it->world, in[i].storage_ent, ItemContainer))){
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items = ic->items;
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}else{
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continue;
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}
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}else{
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continue;
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}
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}
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uint8_t slot_id = in[i].storage_action ? in[i].storage_selected_item : in[i].selected_item;
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ecs_entity_t item_slot_ent = items[slot_id];
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Item *item = item_get_data(item_slot_ent);
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if (!item || item->quantity <= 0)
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continue;
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uint32_t dropped_count = item->quantity;
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if (in[i].sprint) {
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dropped_count /= 2;
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} else if (in[i].ctrl) {
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dropped_count = item->quantity-1;
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}
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if (dropped_count == 0)
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continue;
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item_show(item_slot_ent, true);
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Position *ipos = ecs_get_mut(it->world, item_slot_ent, Position);
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entity_set_position(item_slot_ent, p[i].x, p[i].y);
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Velocity *v = ecs_get_mut(it->world, item_slot_ent, Velocity);
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v->x = in[i].mx * 800.0f;
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v->y = in[i].my * 800.0f;
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inv[i].pickup_time = game_time() + game_rules.item_drop_pickup_time;
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in[i].drop = false;
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items[slot_id] = 0;
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if (item->quantity - dropped_count > 0) {
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item->quantity -= dropped_count;
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ecs_entity_t te = item_spawn(item->kind, dropped_count);
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item_show(te, false);
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items[slot_id] = te;
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}
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}
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}
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// void MergeItems(ecs_iter_t *it) {
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// Position *p = ecs_field(it, Position, 1);
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// ItemDrop *id = ecs_field(it, ItemDrop, 2);
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// for (int i = 0; i < it->count; i += 1) {
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// ItemDrop *item = &id[i];
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// if (item->merger_time < game_time())
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// continue;
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// size_t ents_count;
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// int64_t *ents = world_chunk_query_entities(it->entities[i], &ents_count, 1);
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// for (size_t j = 0; j < ents_count; j++) {
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// ItemDrop *drop = 0;
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// if ((drop = ecs_get_mut_if(it->world, ents[j], ItemDrop))) {
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// if (drop->kind != item->kind || (ecs_entity_t)ents[j] == it->entities[i] || drop->quantity == 0 || item->quantity == 0)
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// continue;
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// Position const* p2 = ecs_get(it->world, ents[j], Position);
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// float dx = p2->x - (p[i].x);
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// float dy = p2->y - (p[i].y);
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// float range = zpl_sqrt(dx*dx + dy*dy);
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// if (range <= game_rules.item_merger_radius) {
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// drop->quantity += item->quantity;
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// item_despawn(it->entities[i]);
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// break;
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// }
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// }
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// }
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// }
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// }
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void SwapItems(ecs_iter_t *it) {
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Input *in = ecs_field(it, Input, 1);
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Inventory *inv = ecs_field(it, Inventory, 2);
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for (int i = 0; i < it->count; i++) {
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if (!in[i].swap) continue;
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ecs_entity_t *items = inv[i].items;
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if (in[i].storage_action){
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if (world_entity_valid(in[i].storage_ent)){
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ItemContainer *ic = 0;
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if ((ic = ecs_get_mut_if(it->world, in[i].storage_ent, ItemContainer))){
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items = ic->items;
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}else{
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continue;
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}
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}else{
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continue;
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}
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}
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ecs_entity_t *from_ent = 0;
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ecs_entity_t *to_ent = 0;
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Item *to = 0;
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Item *from = 0;
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if (in[i].swap_storage){
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in[i].swap_storage = false;
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if (in[i].storage_action){
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from_ent = &inv[i].items[in[i].swap_from];
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to_ent = &items[in[i].swap_to];
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from = item_get_data(*from_ent);
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to = item_get_data(*to_ent);
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}else{
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if (world_entity_valid(in[i].storage_ent)){
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ItemContainer *ic = 0;
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if ((ic = ecs_get_mut_if(it->world, in[i].storage_ent, ItemContainer))){
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from_ent = &ic->items[in[i].swap_from];
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from = item_get_data(*from_ent);
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}else{
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continue;
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}
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}else{
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continue;
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}
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to_ent = &items[in[i].swap_to];
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to = item_get_data(*to_ent);
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}
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}else{
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from_ent = &items[in[i].swap_from];
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to_ent = &items[in[i].swap_to];
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from = item_get_data(*from_ent);
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to = item_get_data(*to_ent);
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}
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if (!from) continue;
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uint16_t to_id = to ? item_find(to->kind) : ASSET_EMPTY;
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asset_id to_kind = to ? to->kind : ASSET_EMPTY;
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if (to_ent == from_ent) {
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// NOTE(zaklaus): do nothing
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} else if (to_kind == from->kind && to->quantity > 0) {
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uint32_t swapped_count = from->quantity;
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if (in[i].sprint) {
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swapped_count /= 2;
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} else if (in[i].ctrl) {
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swapped_count = 1;
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}
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swapped_count = zpl_clamp(swapped_count, 0, item_max_quantity(to_id) - to->quantity);
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to->quantity += swapped_count;
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from->quantity -= swapped_count;
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if (from->quantity == 0) {
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item_despawn(*from_ent);
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*from_ent = 0;
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}
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} else if ((in[i].ctrl || in[i].sprint) && to == 0 && from->quantity > 0) {
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// NOTE(zaklaus): item split
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uint32_t split_count = from->quantity / 2;
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if (in[i].ctrl) {
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split_count = 1;
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}
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if (from->quantity - split_count == 0) {
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continue;
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}
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ecs_entity_t te = item_spawn(from->kind, split_count);
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item_show(te, false);
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*to_ent = te;
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from->quantity -= split_count;
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} else {
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ecs_entity_t tmp = *to_ent;
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*to_ent = *from_ent;
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*from_ent = tmp;
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}
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in[i].swap = false;
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}
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}
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void UseItem(ecs_iter_t *it) {
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Input *in = ecs_field(it, Input, 1);
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Position *p = ecs_field(it, Position, 2);
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Inventory *inv = ecs_field(it, Inventory, 3);
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for (int i = 0; i < it->count; i++) {
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if (!in[i].use && !in[i].num_placements) continue;
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if (in[i].storage_action){
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continue;
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}
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ecs_entity_t item_ent = 0;
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Item *item = NULL;
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uint16_t item_id = 0;
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item_usage usage = UKIND_DELETE;
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if (!in[i].deletion_mode){
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item_ent = inv[i].items[in[i].selected_item];
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item = item_get_data(item_ent);
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item_id = item ? item_find(item->kind) : ASSET_EMPTY;
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usage = item_get_usage(item_id);
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if (!item || item->quantity <= 0) continue;
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}
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if (!in[i].use && usage == UKIND_DELETE){
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for (size_t j = 0; j < in[i].num_placements; j++) {
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world_chunk_destroy_block(in[i].placements_x[j], in[i].placements_y[j], true);
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}
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}
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else if (in[i].use && usage > UKIND_END_PLACE)
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item_use(it->world, item_ent, item, p[i], 0);
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else if (in[i].num_placements > 0 && usage < UKIND_END_PLACE) {
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asset_id ofs = 0;
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if (item_get_place_directional(item_id) && in[i].num_placements >= 2) {
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float p1x = in[i].placements_x[0];
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float p1y = in[i].placements_y[0];
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float p2x = in[i].placements_x[1];
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float p2y = in[i].placements_y[1];
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float sx = zpl_sign0(p2x-p1x);
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float sy = zpl_sign0(p2y-p1y);
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ofs = (sx < 0.0f) ? 1 : 2;
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if (sx == 0.0f) {
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ofs = (sy < 0.0f) ? 3 : 4;
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}
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} else if(item_get_place_directional(item_id)) {
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// NOTE(zaklaus): ensure we pick the first variant
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ofs = 1;
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}
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for (size_t j = 0; j < in[i].num_placements; j++) {
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Position pos = {.x = in[i].placements_x[j], .y = in[i].placements_y[j]};
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item_use(it->world, item_ent, item, pos, ofs);
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}
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in[i].num_placements = 0;
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}
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entity_wake(it->entities[i]);
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if (usage != UKIND_DELETE && item->quantity == 0) {
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item_despawn(item_ent);
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inv[i].items[in[i].selected_item] = 0;
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}
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}
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}
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void InspectContainers(ecs_iter_t *it) {
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Input *in = ecs_field(it, Input, 1);
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for (int i = 0; i < it->count; ++i) {
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if (!in[i].pick) continue;
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if ((in[i].sel_ent && ecs_get(it->world, in[i].sel_ent, ItemContainer)) || !in[i].sel_ent)
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in[i].storage_ent = in[i].sel_ent;
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}
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}
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void HarvestIntoContainers(ecs_iter_t *it) {
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ItemContainer *in = ecs_field(it, ItemContainer, 1);
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Position *p = ecs_field(it, Position, 2);
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for (int i = 0; i < it->count; ++i) {
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// NOTE(zaklaus): find any item
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size_t ents_count;
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int64_t *ents = world_chunk_query_entities(it->entities[i], &ents_count, 0);
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bool picked = false;
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for (size_t j = 0; j < ents_count; j++) {
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Item *drop = 0;
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if ((drop = ecs_get_mut_if(it->world, ents[j], Item))) {
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Position *p2 = ecs_get_mut(it->world, ents[j], Position);
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uint64_t ent_id = ents[j];
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float dx = p2->x - p[i].x;
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float dy = p2->y - p[i].y;
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float range = zpl_sqrt(dx*dx + dy*dy);
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if (range <= game_rules.item_pick_radius) {
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uint16_t drop_id = item_find(drop->kind);
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for (size_t k = 0; k < ITEMS_CONTAINER_SIZE; k += 1) {
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uint64_t item_slot_ent = in[i].items[k];
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Item *item = item_get_data(item_slot_ent);
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uint16_t item_id = item ? item_find(item->kind) : 0;
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if (!item || (item_id != ASSET_INVALID && (item->kind == drop->kind && item->durability == drop->durability) && item->quantity < item_max_quantity(drop_id))) {
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if (item) {
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uint32_t picked_count = zpl_max(0, (int32_t)drop->quantity);
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picked_count = zpl_clamp(picked_count, 0, item_max_quantity(drop_id) - item->quantity);
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item->quantity += picked_count;
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drop->quantity -= picked_count;
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if (drop->quantity == 0) {
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item_despawn(ent_id);
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}
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} else if (!world_entity_valid(item_slot_ent)) {
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entity_wake(ent_id);
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item_show(ent_id, false);
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in[i].items[k] = ent_id;
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}
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entity_wake(it->entities[i]);
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picked = true;
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break;
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}
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}
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}
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}
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if (picked) break;
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}
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}
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}
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void ThrowItemsOut(ecs_iter_t *it) {
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ItemContainer *storage = ecs_field(it, ItemContainer, 1);
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Position *p = ecs_field(it, Position, 2);
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for (int i = 0; i < it->count; i++) {
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for (int j = 0; j < ITEMS_CONTAINER_SIZE; j++) {
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ecs_entity_t item_slot_ent = storage[i].items[j];
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Item *item = item_get_data(item_slot_ent);
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if (!item) continue;
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item_show(item_slot_ent, true);
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entity_set_position(item_slot_ent, p[i].x, p[i].y);
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}
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}
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}
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