From 936d67dad4c4939c9f7c30f489d8bfc74f47fcaf Mon Sep 17 00:00:00 2001 From: paramat Date: Thu, 22 Jun 2017 06:50:22 +0100 Subject: [PATCH] Ores: Make 'absheight' flag non-functional The 'absheight' flag was added years ago for the floatlands of 'indev' mapgen (now deleted). The feature mirrored all ore placement around y = 0 to place ores in floatlands. In MTG we now use dedicated ore registrations for floatlands. The feature is crude, inflexible, problematic and very rarely used, it also makes ore vertical range code more complex. Minetest 0.5 is a good chance to remove the feature. The flag itself remains to not break flag values. --- doc/lua_api.txt | 7 +------ src/mg_ore.cpp | 19 ++++--------------- src/mg_ore.h | 5 +---- 3 files changed, 6 insertions(+), 25 deletions(-) diff --git a/doc/lua_api.txt b/doc/lua_api.txt index 540bbe11..63d090eb 100644 --- a/doc/lua_api.txt +++ b/doc/lua_api.txt @@ -1076,12 +1076,7 @@ Ore attributes See section "Flag Specifier Format". Currently supported flags: -`absheight`, `puff_cliffs`, `puff_additive_composition`. - -### `absheight` -Also produce this same ore between the height range of `-y_max` and `-y_min`. - -Useful for having ore in sky realms without having to duplicate ore entries. +`puff_cliffs`, `puff_additive_composition`. ### `puff_cliffs` If set, puff ore generation will not taper down large differences in displacement diff --git a/src/mg_ore.cpp b/src/mg_ore.cpp index f959ca9e..73af2e2e 100644 --- a/src/mg_ore.cpp +++ b/src/mg_ore.cpp @@ -27,7 +27,7 @@ with this program; if not, write to the Free Software Foundation, Inc., FlagDesc flagdesc_ore[] = { - {"absheight", OREFLAG_ABSHEIGHT}, + {"absheight", OREFLAG_ABSHEIGHT}, // Non-functional {"puff_cliffs", OREFLAG_PUFF_CLIFFS}, {"puff_additive_composition", OREFLAG_PUFF_ADDITIVE}, {NULL, 0} @@ -87,22 +87,11 @@ void Ore::resolveNodeNames() size_t Ore::placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax) { - int in_range = 0; - - in_range |= (nmin.Y <= y_max && nmax.Y >= y_min); - if (flags & OREFLAG_ABSHEIGHT) - in_range |= (nmin.Y >= -y_max && nmax.Y <= -y_min) << 1; - if (!in_range) + if (!(nmin.Y <= y_max && nmax.Y >= y_min)) return 0; - int actual_ymin, actual_ymax; - if (in_range & ORE_RANGE_MIRROR) { - actual_ymin = MYMAX(nmin.Y, -y_max); - actual_ymax = MYMIN(nmax.Y, -y_min); - } else { - actual_ymin = MYMAX(nmin.Y, y_min); - actual_ymax = MYMIN(nmax.Y, y_max); - } + int actual_ymin = MYMAX(nmin.Y, y_min); + int actual_ymax = MYMIN(nmax.Y, y_max); if (clust_size >= actual_ymax - actual_ymin + 1) return 0; diff --git a/src/mg_ore.h b/src/mg_ore.h index 4b052e07..5aeb3631 100644 --- a/src/mg_ore.h +++ b/src/mg_ore.h @@ -32,14 +32,11 @@ class MMVManip; /////////////////// Ore generation flags -#define OREFLAG_ABSHEIGHT 0x01 +#define OREFLAG_ABSHEIGHT 0x01 // Non-functional but kept to not break flags #define OREFLAG_PUFF_CLIFFS 0x02 #define OREFLAG_PUFF_ADDITIVE 0x04 #define OREFLAG_USE_NOISE 0x08 -#define ORE_RANGE_ACTUAL 1 -#define ORE_RANGE_MIRROR 2 - enum OreType { ORE_SCATTER, ORE_SHEET,