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author | paramat <mat.gregory@virginmedia.com> | 2015-07-18 20:37:04 +0100 |
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committer | paramat <mat.gregory@virginmedia.com> | 2015-07-19 02:47:11 +0100 |
commit | 4046f3e302a3394bf376caf543cb643e1562bc5e (patch) | |
tree | 13108b00606930f5204f20f8bb633b56c2b5957e /src | |
parent | e47f390e0d37d7906bbbe6a082cc69e10235a3ba (diff) | |
download | minetest-4046f3e302a3394bf376caf543cb643e1562bc5e.tar.gz minetest-4046f3e302a3394bf376caf543cb643e1562bc5e.tar.bz2 minetest-4046f3e302a3394bf376caf543cb643e1562bc5e.zip |
Cavegen: Mgv6: No small caves entirely above ground
Mgv5/mgv7: Remove 'should make cave hole' feature
Remove ravine code
Diffstat (limited to 'src')
-rw-r--r-- | src/cavegen.cpp | 104 | ||||
-rw-r--r-- | src/cavegen.h | 4 |
2 files changed, 36 insertions, 72 deletions
diff --git a/src/cavegen.cpp b/src/cavegen.cpp index 8bb8b847a..0c14375ee 100644 --- a/src/cavegen.cpp +++ b/src/cavegen.cpp @@ -138,7 +138,7 @@ void CaveV5::makeTunnel(bool dirswitch) { (float)(ps->next() % maxlen.Z) - (float)maxlen.Z / 2 ); - // Do not make large caves that are above ground. + // Do not make caves that are above ground. // It is only necessary to check the startpoint and endpoint. v3s16 orpi(orp.X, orp.Y, orp.Z); v3s16 veci(vec.X, vec.Y, vec.Z); @@ -193,20 +193,15 @@ void CaveV5::makeTunnel(bool dirswitch) { // Every second section is rough bool randomize_xz = (ps->range(1, 2) == 1); - // Make a ravine every once in a while if it's long enough - //float xylen = vec.X * vec.X + vec.Z * vec.Z; - //disable ravines for now - bool is_ravine = false; //(xylen > 500.0) && !large_cave && (ps->range(1, 8) == 1); - // Carve routes for (float f = 0; f < 1.0; f += 1.0 / veclen) - carveRoute(vec, f, randomize_xz, is_ravine); + carveRoute(vec, f, randomize_xz); orp = rp; } -void CaveV5::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) { +void CaveV5::carveRoute(v3f vec, float f, bool randomize_xz) { MapNode airnode(CONTENT_AIR); MapNode waternode(c_water_source); MapNode lavanode(c_lava_source); @@ -230,15 +225,12 @@ void CaveV5::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) { d1 += ps->range(-1, 1); } - bool should_make_cave_hole = ps->range(1, 10) == 1; - for (s16 z0 = d0; z0 <= d1; z0++) { s16 si = rs / 2 - MYMAX(0, abs(z0) - rs / 7 - 1); for (s16 x0 = -si - ps->range(0,1); x0 <= si - 1 + ps->range(0,1); x0++) { s16 maxabsxz = MYMAX(abs(x0), abs(z0)); - s16 si2 = is_ravine ? MYMIN(ps->range(25, 26), ar.Y) : - rs / 2 - MYMAX(0, maxabsxz - rs / 7 - 1); + s16 si2 = rs / 2 - MYMAX(0, maxabsxz - rs / 7 - 1); for (s16 y0 = -si2; y0 <= si2; y0++) { if (large_cave_is_flat) { @@ -250,15 +242,6 @@ void CaveV5::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) { v3s16 p(cp.X + x0, cp.Y + y0, cp.Z + z0); p += of; - if (!is_ravine && mg->heightmap && should_make_cave_hole && - p.X <= node_max.X && p.Z <= node_max.Z) { - int maplen = node_max.X - node_min.X + 1; - int idx = (p.Z - node_min.Z) * maplen + - (p.X - node_min.X); - if (p.Y >= mg->heightmap[idx] - 2) - continue; - } - if (vm->m_area.contains(p) == false) continue; @@ -431,38 +414,36 @@ void CaveV6::makeTunnel(bool dirswitch) { ); } - // Do not make large caves that are entirely above ground. + // Do not make caves that are entirely above ground. // It is only necessary to check the startpoint and endpoint. - if (large_cave) { - v3s16 orpi(orp.X, orp.Y, orp.Z); - v3s16 veci(vec.X, vec.Y, vec.Z); - s16 h1; - s16 h2; - - v3s16 p1 = orpi + veci + of + rs / 2; - if (p1.Z >= node_min.Z && p1.Z <= node_max.Z && - p1.X >= node_min.X && p1.X <= node_max.X) { - u32 index1 = (p1.Z - node_min.Z) * mg->ystride + - (p1.X - node_min.X); - h1 = mg->heightmap[index1]; - } else { - h1 = water_level; // If not in heightmap - } - - v3s16 p2 = orpi + of + rs / 2; - if (p2.Z >= node_min.Z && p2.Z <= node_max.Z && - p2.X >= node_min.X && p2.X <= node_max.X) { - u32 index2 = (p2.Z - node_min.Z) * mg->ystride + - (p2.X - node_min.X); - h2 = mg->heightmap[index2]; - } else { - h2 = water_level; - } + v3s16 orpi(orp.X, orp.Y, orp.Z); + v3s16 veci(vec.X, vec.Y, vec.Z); + s16 h1; + s16 h2; + + v3s16 p1 = orpi + veci + of + rs / 2; + if (p1.Z >= node_min.Z && p1.Z <= node_max.Z && + p1.X >= node_min.X && p1.X <= node_max.X) { + u32 index1 = (p1.Z - node_min.Z) * mg->ystride + + (p1.X - node_min.X); + h1 = mg->heightmap[index1]; + } else { + h1 = water_level; // If not in heightmap + } - if (p1.Y > h1 && p2.Y > h2) // If startpoint and endpoint are above ground - return; + v3s16 p2 = orpi + of + rs / 2; + if (p2.Z >= node_min.Z && p2.Z <= node_max.Z && + p2.X >= node_min.X && p2.X <= node_max.X) { + u32 index2 = (p2.Z - node_min.Z) * mg->ystride + + (p2.X - node_min.X); + h2 = mg->heightmap[index2]; + } else { + h2 = water_level; } + if (p1.Y > h1 && p2.Y > h2) // If startpoint and endpoint are above ground + return; + vec += main_direction; v3f rp = orp + vec; @@ -680,7 +661,7 @@ void CaveV7::makeTunnel(bool dirswitch) { (float)(ps->next() % maxlen.Z) - (float)maxlen.Z / 2 ); - // Do not make large caves that are above ground. + // Do not make caves that are above ground. // It is only necessary to check the startpoint and endpoint. v3s16 orpi(orp.X, orp.Y, orp.Z); v3s16 veci(vec.X, vec.Y, vec.Z); @@ -735,20 +716,15 @@ void CaveV7::makeTunnel(bool dirswitch) { // Every second section is rough bool randomize_xz = (ps->range(1, 2) == 1); - // Make a ravine every once in a while if it's long enough - //float xylen = vec.X * vec.X + vec.Z * vec.Z; - //disable ravines for now - bool is_ravine = false; //(xylen > 500.0) && !large_cave && (ps->range(1, 8) == 1); - // Carve routes for (float f = 0; f < 1.0; f += 1.0 / veclen) - carveRoute(vec, f, randomize_xz, is_ravine); + carveRoute(vec, f, randomize_xz); orp = rp; } -void CaveV7::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) { +void CaveV7::carveRoute(v3f vec, float f, bool randomize_xz) { MapNode airnode(CONTENT_AIR); MapNode waternode(c_water_source); MapNode lavanode(c_lava_source); @@ -773,15 +749,12 @@ void CaveV7::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) { d1 += ps->range(-1, 1); } - bool should_make_cave_hole = ps->range(1, 10) == 1; - for (s16 z0 = d0; z0 <= d1; z0++) { s16 si = rs / 2 - MYMAX(0, abs(z0) - rs / 7 - 1); for (s16 x0 = -si - ps->range(0,1); x0 <= si - 1 + ps->range(0,1); x0++) { s16 maxabsxz = MYMAX(abs(x0), abs(z0)); - s16 si2 = is_ravine ? MYMIN(ps->range(25, 26), ar.Y) : - rs / 2 - MYMAX(0, maxabsxz - rs / 7 - 1); + s16 si2 = rs / 2 - MYMAX(0, maxabsxz - rs / 7 - 1); for (s16 y0 = -si2; y0 <= si2; y0++) { if (large_cave_is_flat) { @@ -793,15 +766,6 @@ void CaveV7::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) { v3s16 p(cp.X + x0, cp.Y + y0, cp.Z + z0); p += of; - if (!is_ravine && mg->heightmap && should_make_cave_hole && - p.X <= node_max.X && p.Z <= node_max.Z) { - int maplen = node_max.X - node_min.X + 1; - int idx = (p.Z - node_min.Z) * maplen + - (p.X - node_min.X); - if (p.Y >= mg->heightmap[idx] - 2) - continue; - } - if (vm->m_area.contains(p) == false) continue; diff --git a/src/cavegen.h b/src/cavegen.h index 38ef57c5a..5d150802a 100644 --- a/src/cavegen.h +++ b/src/cavegen.h @@ -69,7 +69,7 @@ public: CaveV5(MapgenV5 *mg, PseudoRandom *ps); void makeCave(v3s16 nmin, v3s16 nmax, int max_stone_height); void makeTunnel(bool dirswitch); - void carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine); + void carveRoute(v3f vec, float f, bool randomize_xz); }; class CaveV6 { @@ -158,7 +158,7 @@ public: CaveV7(MapgenV7 *mg, PseudoRandom *ps); void makeCave(v3s16 nmin, v3s16 nmax, int max_stone_height); void makeTunnel(bool dirswitch); - void carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine); + void carveRoute(v3f vec, float f, bool randomize_xz); }; #endif |