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Load custom trap/cloner connections from CC1 .DAT levels

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This commit is contained in:
Eevee (Evelyn Woods) 2020-09-01 09:48:17 -06:00
parent 7d9426c8e7
commit 1cc631c27e
4 changed files with 60 additions and 10 deletions
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29
js/format-dat.js
View File

@ -209,14 +209,31 @@ function parse_level(buf) {
level.title = util.string_from_buffer_ascii(buf.slice(p, p + field_length - 1));
}
else if (field_type === 0x04) {
// Trap linkages
// TODO read this
// TODO under lynx rules these aren't even used, and they cause bugs in mscc1!
// Trap linkages (MSCC only, not in Lynx or CC2)
let field_view = new DataView(buf.slice(p, p + field_length));
let q = 0;
while (q < field_length) {
let button_x = field_view.getUint16(q + 0, true);
let button_y = field_view.getUint16(q + 2, true);
let trap_x = field_view.getUint16(q + 4, true);
let trap_y = field_view.getUint16(q + 6, true);
// Fifth u16 is always zero, possibly live game state
q += 10;
level.custom_trap_wiring[button_x + button_y * level.size_x] = trap_x + trap_y * level.size_x;
}
}
else if (field_type === 0x05) {
// Trap linkages
// TODO read this
// TODO under lynx rules these aren't even used, and they cause bugs in mscc1!
// Cloner linkages (MSCC only, not in Lynx or CC2)
let field_view = new DataView(buf.slice(p, p + field_length));
let q = 0;
while (q < field_length) {
let button_x = field_view.getUint16(q + 0, true);
let button_y = field_view.getUint16(q + 2, true);
let cloner_x = field_view.getUint16(q + 4, true);
let cloner_y = field_view.getUint16(q + 6, true);
q += 8;
level.custom_cloner_wiring[button_x + button_y * level.size_x] = cloner_x + cloner_y * level.size_x;
}
}
else if (field_type === 0x06) {
// Password, with trailing NUL, and otherwise XORed with 0x99 (?!)

5
js/format-util.js
View File

@ -22,6 +22,11 @@ export class StoredLevel {
this.player_start_x = 0;
this.player_start_y = 0;
// Maps of button positions to trap/cloner positions, as scalar indexes
// in the linear cell list
this.custom_trap_wiring = {};
this.custom_cloner_wiring = {};
}
check() {

34
js/main.js
View File

@ -289,15 +289,44 @@ class Level {
// Connect buttons and teleporters
let num_cells = this.width * this.height;
console.log(this.stored_level.custom_trap_wiring);
console.log(this.stored_level.custom_cloner_wiring);
for (let connectable of connectables) {
let x = connectable.x;
let y = connectable.y;
let goal = connectable.type.connects_to;
let found = false;
// Check for custom wiring, for MSCC .DAT levels
let n = x + y * this.width;
console.log(x, y, n);
let target_cell_n = null;
if (goal === 'trap') {
target_cell_n = this.stored_level.custom_trap_wiring[n] ?? null;
}
else if (goal === 'cloner') {
target_cell_n = this.stored_level.custom_cloner_wiring[n] ?? null;
}
if (target_cell_n) {
// TODO this N could be outside the map bounds
let target_cell_x = target_cell_n % this.width;
let target_cell_y = Math.floor(target_cell_n / this.width);
for (let tile of this.cells[target_cell_y][target_cell_x]) {
if (tile.type.name === goal) {
connectable.connection = tile;
found = true;
break;
}
}
if (found)
continue;
}
// Otherwise, look in reading order
let direction = 1;
if (connectable.type.connect_order == 'backward') {
if (connectable.type.connect_order === 'backward') {
direction = -1;
}
let found = false;
for (let i = 0; i < num_cells - 1; i++) {
x += direction;
if (x >= this.width) {
@ -314,6 +343,7 @@ class Level {
// TODO should be weak, but you can't destroy cloners so in practice not a concern
connectable.connection = tile;
found = true;
break;
}
}
if (found)

2
js/tiletypes.js
View File

@ -364,7 +364,6 @@ const TILE_TYPES = {
connect_order: 'forward',
on_arrive(me, level, other) {
if (me.connection && ! me.connection.doomed) {
// TODO do gray buttons affect traps? if so this should use activate()
let trap = me.connection;
trap.open = true;
for (let tile of level.cells[trap.y][trap.x]) {
@ -376,7 +375,6 @@ const TILE_TYPES = {
},
on_depart(me, level, other) {
if (me.connection && ! me.connection.doomed) {
// TODO do gray buttons affect traps? if so this should use activate()
let trap = me.connection;
trap.open = false;
for (let tile of level.cells[trap.y][trap.x]) {