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Added flying to Simian and improved terrain-walking using Lerp to calculate the terrain height at more precise offsets.

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git-svn-id: http://libopenmetaverse.googlecode.com/svn/trunk@2117 52acb1d6-8a22-11de-b505-999d5b087335
This commit is contained in:
2008-08-19 20:24:22 +00:00
parent 24055f1e79
commit bb145b9070
1 changed files with 40 additions and 2 deletions
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42
Programs/Simian/Extensions/Movement.cs
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@@ -12,6 +12,8 @@ namespace Simian.Extensions
Simian Server;
Timer UpdateTimer;
const float SQRT_TWO = 1.41421356f;
const float WALK_SPEED = 0.5f;
const float FLY_SPEED = 1.5f;
public Movement(Simian server)
{
@@ -46,8 +48,12 @@ namespace Simian.Extensions
bool heldBack = (agent.ControlFlags & AgentManager.ControlFlags.AGENT_CONTROL_AT_NEG) == AgentManager.ControlFlags.AGENT_CONTROL_AT_NEG;
bool heldLeft = (agent.ControlFlags & AgentManager.ControlFlags.AGENT_CONTROL_LEFT_POS) == AgentManager.ControlFlags.AGENT_CONTROL_LEFT_POS;
bool heldRight = (agent.ControlFlags & AgentManager.ControlFlags.AGENT_CONTROL_LEFT_NEG) == AgentManager.ControlFlags.AGENT_CONTROL_LEFT_NEG;
bool heldUp = (agent.ControlFlags & AgentManager.ControlFlags.AGENT_CONTROL_UP_POS) == AgentManager.ControlFlags.AGENT_CONTROL_UP_POS;
bool heldDown = (agent.ControlFlags & AgentManager.ControlFlags.AGENT_CONTROL_UP_NEG) == AgentManager.ControlFlags.AGENT_CONTROL_UP_NEG;
bool flying = (agent.ControlFlags & AgentManager.ControlFlags.AGENT_CONTROL_FLY) == AgentManager.ControlFlags.AGENT_CONTROL_FLY;
float speed = flying ? FLY_SPEED : WALK_SPEED;
float speed = 0.5f;
if ((heldForward || heldBack) && (heldLeft || heldRight))
speed /= SQRT_TWO;
@@ -80,13 +86,45 @@ namespace Simian.Extensions
agent.Avatar.Velocity.Y -= left.Y * speed;
}
int x = (int)agent.Avatar.Position.X;
int y = (int)agent.Avatar.Position.Y;
float center = Server.Heightmap[y * 256 + x];
float distX = agent.Avatar.Position.X - (int)agent.Avatar.Position.X;
float distY = agent.Avatar.Position.Y - (int)agent.Avatar.Position.Y;
float nearestX;
float nearestY;
if (distX > 0) nearestX = Server.Heightmap[y * 256 + x + (x < 256 ? 1 : 0)];
else nearestX = Server.Heightmap[y * 256 + x - (x > 0 ? 1 : 0)];
if (distY > 0) nearestY = Server.Heightmap[(y + (y < 256 ? 1 : 0)) * 256 + x];
else nearestY = Server.Heightmap[(y - (y > 0 ? 1 : 0)) * 256 + x];
float lerpX = Utils.Lerp(center, nearestX, Math.Abs(distX));
float lerpY = Utils.Lerp(center, nearestY, Math.Abs(distY));
float floor = ((lerpX + lerpY) / 2) + agent.Avatar.Scale.Z / 2;
if (flying)
{
if (heldUp)
agent.Avatar.Position.Z += speed;
if (heldDown)
agent.Avatar.Position.Z -= speed;
}
else agent.Avatar.Position.Z = floor;
if (agent.Avatar.Position.X < 0) agent.Avatar.Position.X = 0f;
else if (agent.Avatar.Position.X > 255) agent.Avatar.Position.X = 255f;
if (agent.Avatar.Position.Y < 0) agent.Avatar.Position.Y = 0f;
else if (agent.Avatar.Position.Y > 255) agent.Avatar.Position.Y = 255f;
agent.Avatar.Position.Z = Server.Heightmap[(int)agent.Avatar.Position.Y * 256 + (int)agent.Avatar.Position.X] + agent.Avatar.Scale.Z / 2;
if (agent.Avatar.Position.Z < floor) agent.Avatar.Position.Z = floor;
}
}