Rpg Maker Developers Group

/*:
* @plugindesc The SecretPassage plugin allows you to make an otherwise impassable tile passable through the use of regions.
* @author mykrme
*
* @param Passable
* @desc The region number used for a secret passage - always passable.
* @Default 1
*
* @param Impassable
* @desc The region number used for the surroundings of a secret passage - always impassable.
* @Default 2
*
* @param Invisible
* @desc The region number used for a secret passage - always passable. Character is invisible.
* @Default 3
*
* @Help
*/
var settings = PluginManager.parameters("SecretPassage");
var passable_region = parseInt(settings["Passable"]) || 1;
var impassable_region = parseInt(settings["Impassable"]) || 2;
var invisible_region = parseInt(settings["Invisible"]) || 3;

var _Game_Map_checkPassage = Game_Map.prototype.checkPassage;
Game_Map.prototype.checkPassage = function(x, y, bit) {
var region = $gameMap.regionId(x, y);
switch (region) {
case passable_region:
case invisible_region: return true;
case impassable_region: return false;
default: return _Game_Map_checkPassage.call(this, x, y, bit);
}
};

var temp_mx = 0;
var temp_my = 0;
var tileId_below = 0;
var Tilemap__paintTiles = Tilemap.prototype._paintTiles;
Tilemap.prototype._paintTiles = function(startX, startY, x, y) {
temp_mx = startX + x;
temp_my = startY + y;
tileId_below = this._readMapData(temp_mx, temp_my + 1, 0); // only checks A type tiles
Tilemap__paintTiles.call(this, startX, startY, x, y);
}

var Tilemap__isHigherTile = Tilemap.prototype._isHigherTile;
Tilemap.prototype._isHigherTile = function(tileId) {
var currentTile_invisibleRegion = this._readMapData(temp_mx, temp_my, 5) == invisible_region;
var tileOneBelow_invisibleRegion = this._readMapData(temp_mx, temp_my + 1, 5) == invisible_region;
var playerStandsBelow = $gamePlayer._realY > temp_my;

if (!tileOneBelow_invisibleRegion && playerStandsBelow) { // to show the hat tops
return Tilemap__isHigherTile.call(this, tileId);
}
if (currentTile_invisibleRegion) {
return 0x10;
}
if (tileOneBelow_invisibleRegion && Tilemap.isSameKindTile(tileId, tileId_below)) { // to hide the hat tops
return 0x10;
}
return Tilemap__isHigherTile.call(this, tileId);
};