创建悬崖
创建悬崖还是在创建地图的基础上加上几个语句，然后把地形语句删掉。
语句是： [( )] rmSetAreaCliffType(int areaID, string cliffName): Sets the cliff type for an area.
[( )] rmSetAreaCliffType(int areaID, string cliffName): 给地形设定悬崖类型，然后这个地形就变成悬崖了，cliffName参考下表。
 |
Amazon |  |
Andes |  |
Andeswall |  |
Araucania Central |
 |
araucania central coast | |
araucania central coast2 | |
Araucania North | |
Araucania North Coast |
|
Araucania North Coast2 | |
Araucania South | |
Araucania Southern Coast |  |
Bayou |
|
California | |
californiacoast | |
californiacoast2 |  |
Caribbean |
 |
Carolina |  |
Carolina Coast |  |
Carolina Inland |  |
Cave |
 |
Ceylon |  |
Coastal Japan |  |
Deccan Plateau |  |
Deccan Plateau River |
 |
Great Plains |  |
Himalayas |  |
New England |  |
New England Inland |
|
New England Inland Grass |  |
New England snow | |
New England_texgrass | |
Orinoco |
 |
Painteddesert | |
Patagonia | |
Patagonia |  |
Rocky Mountain Edge |
 |
Rocky Mountain2 | |
Sonora |  |
SPC Caribbean | |
SPC Mountain Pass |
 |
SPC Rocky cliffs | |
Texas |  |
Texas Grass |  |
Yellow River |
例如这是一个地形：
int TestID=rmCreateArea("Test ID Area");
rmSetAreaSize(TestID, rmAreaTilesToFraction(500), rmAreaTilesToFraction(500));
rmSetAreaWarnFailure(TestID, true);
rmSetAreaSmoothDistance(TestID, 0);
rmSetAreaCoherence(TestID, 0.0);
rmSetAreaMix(TestID, "himalayas_a");
rmSetAreaBaseHeight(TestID, 4.0);
rmSetAreaElevationOctaves(TestID, 3);
rmSetAreaObeyWorldCircleConstraint(TestID, false);
rmSetAreaLocation(TestID, 0.5, 0.5);
rmBuildArea(TestID);
将上述语句改成悬崖如下：
int TestID=rmCreateArea("Test ID Area");
rmSetAreaSize(TestID, rmAreaTilesToFraction(500), rmAreaTilesToFraction(500));
rmSetAreaCliffType(TestID, "SPC Caribbean");
rmSetAreaWarnFailure(TestID, true);
rmSetAreaSmoothDistance(TestID, 0);
rmSetAreaCoherence(TestID, 0.0);
//rmSetAreaMix(TestID, "himalayas_a");将设定地形类型语句删除,就算是保留也不会再起任何作用了。
rmSetAreaBaseHeight(TestID, 4.0);//地形高度也能作为悬崖高度
rmSetAreaElevationOctaves(TestID, 3);
rmSetAreaObeyWorldCircleConstraint(TestID, false);
rmSetAreaLocation(TestID, 0.5, 0.5);
rmBuildArea(TestID);
int TestID=rmCreateArea("Test ID Area");
rmSetAreaSize(TestID, rmAreaTilesToFraction(500), rmAreaTilesToFraction(500));
rmSetAreaCliffType(TestID, "SPC Caribbean");
rmSetAreaWarnFailure(TestID, true);
rmSetAreaSmoothDistance(TestID, 0);
rmSetAreaCoherence(TestID, 0.0);
//rmSetAreaMix(TestID, "himalayas_a");将设定地形类型语句删除,就算是保留也不会再起任何作用了。
rmSetAreaBaseHeight(TestID, 10.0);//地形高度10
rmSetAreaElevationOctaves(TestID, 3);
rmSetAreaObeyWorldCircleConstraint(TestID, false);
rmSetAreaLocation(TestID, 0.5, 0.5);
rmBuildArea(TestID);
与前面几个教程一样，悬崖可以删掉rmSetAreaLocation定位，然后用放置限制随机放置，这里不再列出。
事实上悬崖我也搞不太懂，悬崖还有几个语句例如rmSetAreaCliffHeight：
[( )] rmSetAreaCliffHeight(int areaID, float val, float variance, float ramp): Set an area's cliff height.
rmSetAreaCliffHeight是一个可以设定悬崖高度的语句，以下是rmSetAreaCliffHeight的测试结果
int TestID=rmCreateArea("Test ID Area");
rmSetAreaSize(TestID, rmAreaTilesToFraction(500), rmAreaTilesToFraction(500));
rmSetAreaWarnFailure(TestID, true);
rmSetAreaSmoothDistance(TestID, 0);
rmSetAreaCoherence(TestID, 0.8);
//rmSetAreaBaseHeight(TestID, 4.0);
rmSetAreaCliffType(TestID, "SPC Caribbean");
rmSetAreaCliffHeight(TestID, rmRandInt(6, 8), 100.0, 1.0);
rmSetAreaElevationOctaves(TestID, 3);
rmSetAreaObeyWorldCircleConstraint(TestID, false);
rmSetAreaLocation(TestID, 0.5, 0.5);
rmSetAreaHeightBlend(TestID, 100);
rmBuildArea(TestID);
variance：变化幅度；
ramp ：斜坡；
总合以上测试结果大概就是
rmSetAreaCliffHeight(int areaID, float val悬崖高度, float variance浮动高度（悬崖最高值）, float ramp斜坡，一般为1.0，数值越大斜坡越直，<1的话已经不能算悬崖了，0.0直接变成平地)
也只能这样解释了，我也被搞懵了。
不管这个语句了，另一个语句：
rmSetAreaCliffEdge(int areaID, int count, float size, float variance, float spacing, int mapEdge): Set cliff edge parameters for an area.
----------------------------------------------------
int TestID=rmCreateArea("Test ID Area");
rmSetAreaSize(TestID, rmAreaTilesToFraction(500), rmAreaTilesToFraction(500));
rmSetAreaWarnFailure(TestID, true);
rmSetAreaSmoothDistance(TestID, 0);
rmSetAreaCoherence(TestID, 0.8);
rmSetAreaCliffType(TestID, "SPC Caribbean");
rmSetAreaCliffHeight(TestID, rmRandInt(6, 8), 1.0, 1.0);
rmSetAreaCliffEdge(TestID, 3, rmAreaTilesToFraction(2000), 1, 1, 0);
rmSetAreaElevationOctaves(TestID, 3);
rmSetAreaObeyWorldCircleConstraint(TestID, false);
rmSetAreaLocation(TestID, 0.5, 0.5);
rmSetAreaHeightBlend(TestID, 100);
rmBuildArea(TestID);
int TestID=rmCreateArea("Test ID Area");
rmSetAreaSize(TestID, rmAreaTilesToFraction(500), rmAreaTilesToFraction(500));
rmSetAreaWarnFailure(TestID, true);
rmSetAreaSmoothDistance(TestID, 0);
rmSetAreaCoherence(TestID, 0.8);
rmSetAreaCliffType(TestID, "SPC Caribbean");
rmSetAreaCliffHeight(TestID, rmRandInt(6, 8), 1.0, 1.0);
rmSetAreaCliffEdge(TestID, 3, rmAreaTilesToFraction(2000), 0, 10, 0);
rmSetAreaElevationOctaves(TestID, 3);
rmSetAreaObeyWorldCircleConstraint(TestID, false);
rmSetAreaLocation(TestID, 0.5, 0.5);
rmSetAreaHeightBlend(TestID, 100);
rmBuildArea(TestID);
int TestID=rmCreateArea("Test ID Area");
rmSetAreaSize(TestID, rmAreaTilesToFraction(500), rmAreaTilesToFraction(500));
rmSetAreaWarnFailure(TestID, true);
rmSetAreaSmoothDistance(TestID, 0);
rmSetAreaCoherence(TestID, 0.8);
rmSetAreaCliffType(TestID, "SPC Caribbean");
rmSetAreaCliffHeight(TestID, rmRandInt(6, 8), 1.0, 1.0);
rmSetAreaCliffEdge(TestID, 1, 1.0, 0.1, 1.0, 0);
rmSetAreaElevationOctaves(TestID, 3);
rmSetAreaObeyWorldCircleConstraint(TestID, false);
rmSetAreaLocation(TestID, 0.5, 0.5);
rmSetAreaHeightBlend(TestID, 100);
rmBuildArea(TestID);
rmSetAreaCliffEdge大概是在边缘生成额外悬崖
rmSetAreaCliffEdge(int areaID, int count数量, float size大小, float variance高度浮动, float spacing？？？, int mapEdge？？？)
---------------------------------------------------------------------------
创建悬崖还可以使用rmAddAreaInfluenceSegment(int areaID, float xFraction1, float zFraction1, float xFraction2, float zFraction2): Adds an area influence segment. 生成根据两个坐标连成的直线生成额外悬崖。
rmAddAreaInfluenceSegment(TerrainID, 1.0, 1.0, 0.0, 0.0);添加后，如果定位点在rmAddAreaInfluenceSegment的直线范围里面，会额外生成一条直线地形。例如rmSetAreaLocation为0.5,0.5；而rmAddAreaInfluenceSegment第一个点为1.0,1.0，第二个点为0.0,0.0，那么1.0,1.0到0.0,0.0之间会生成额外地形，大小依然为rmSetAreaSize定义的大小。（似乎还有什么影响着悬崖大小......）
int TestID=rmCreateArea("Test ID Area");
rmSetAreaSize(TestID, rmAreaTilesToFraction(500), rmAreaTilesToFraction(500));
rmSetAreaWarnFailure(TestID, true);
rmSetAreaSmoothDistance(TestID, 0);
rmSetAreaCoherence(TestID, 0.8);
rmSetAreaCliffType(TestID, "SPC Caribbean");
rmSetAreaCliffHeight(TestID, rmRandInt(6, 8), 1.0, 1.0);
rmAddAreaInfluenceSegment(TestID, 0.0, 0.1, 0.6, 0.6);
rmSetAreaElevationOctaves(TestID, 3);
rmSetAreaObeyWorldCircleConstraint(TestID, false);
rmSetAreaLocation(TestID, 0.5, 0.5);
rmSetAreaHeightBlend(TestID, 100);
rmBuildArea(TestID);
再把rmSetAreaCliffEdge加上去
int TestID=rmCreateArea("Test ID Area");
rmSetAreaSize(TestID, 0.1, 0.1);
rmSetAreaWarnFailure(TestID, true);
rmSetAreaSmoothDistance(TestID, 0);
rmSetAreaCoherence(TestID, 0.8);
rmSetAreaCliffType(TestID, "SPC Caribbean");
rmSetAreaCliffHeight(TestID, rmRandInt(6, 8), 1.0, 1.0);
rmSetAreaCliffEdge(TestID, 1, 10, 1, 1, 0);
rmAddAreaInfluenceSegment(TestID, 0.0, 0.0, 1.0, 1.0);
rmSetAreaElevationOctaves(TestID, 3);
rmSetAreaObeyWorldCircleConstraint(TestID, false);
rmSetAreaLocation(TestID, 0.5, 0.5);
rmSetAreaHeightBlend(TestID, 100);
rmBuildArea(TestID);
可以添加多个rmAddAreaInfluenceSegment
int TestID=rmCreateArea("Test ID Area");
rmSetAreaSize(TestID, 0.1, 0.1);
rmSetAreaWarnFailure(TestID, true);
rmSetAreaSmoothDistance(TestID, 0);
rmSetAreaCoherence(TestID, 0.8);
rmSetAreaCliffType(TestID, "SPC Caribbean");
rmSetAreaCliffHeight(TestID, rmRandInt(6, 8), 1.0, 1.0);
rmSetAreaCliffEdge(TestID, 1, 10, 1, 1, 0);
rmAddAreaInfluenceSegment(TestID, 0.0, 0.0, 1.0, 1.0);
rmAddAreaInfluenceSegment(TestID, 0.5, 1.0, 0.5, 0.0);
rmAddAreaInfluenceSegment(TestID, 0.0, 1.0, 1.0, 0.0);
rmAddAreaInfluenceSegment(TestID, 0.0, 0.5, 1.0, 0.5);
rmSetAreaElevationOctaves(TestID, 3);
rmSetAreaObeyWorldCircleConstraint(TestID, false);
rmSetAreaLocation(TestID, 0.5, 0.5);
rmSetAreaHeightBlend(TestID, 100);
rmBuildArea(TestID);
---------------------------------------------------------------------------
补充：峡谷地形
int TestID=rmCreateArea("Test ID Area");
rmSetAreaSize(TestID, 0.1, 0.1);
rmSetAreaWarnFailure(TestID, true);
rmSetAreaSmoothDistance(TestID, 0);
rmSetAreaCoherence(TestID, 0.8);
rmSetAreaCliffType(TestID, "SPC Caribbean");
rmSetAreaCliffHeight(TestID, -10, 1.0, 1.0);
rmSetAreaCliffEdge(TestID, 1, 10, 1, 1, 0);
rmSetAreaElevationOctaves(TestID, 3);
rmSetAreaObeyWorldCircleConstraint(TestID, false);
rmSetAreaLocation(TestID, 0.5, 0.5);
rmSetAreaHeightBlend(TestID, 100);
rmBuildArea(TestID);
删除rmSetAreaCliffEdge后
---------------------------------------------------------------------------
请问rmSetAreaCliffEdge到底怎样控制？请问！@#￥%……&*这是什么？
本次教程还没有结束，但是作者跑了。