ilikecats/stk-code_catmod
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Added ability for karts to jump to arbitrary locations on the map albeit somewhat inaccurately for now via the method jumpKartTo(kartID, targetx,target y) Notation is standard blender xyz

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This commit is contained in:
Sachith Hasaranga Seneviratne 2014-06-02 21:26:27 +05:30
parent 88ea69fdc7
commit b14f79288d
2 changed files with 31 additions and 3 deletions
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5
data/scripts/tutorial_bananas.as
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@ -2,8 +2,9 @@ void onTrigger()
{
displayMessage("Bananas! Bananas! Everywhere!");
squashKart(0,35.0); //id of kart,time to squash
//teleportKart(0, 5, 5 ,5); //id of kart, x,y,z
setVelocity(0, 5, 50 , 8); //id of kart, velocity //components x,y,z
//teleportKart(0, 0, 0 ,0); //id of kart, x,y,z
//setVelocity(0, 5, 50 , 8); //id of kart, velocity //components x,y,z
jumpKartTo(0, 0.02, 2.82); //id of kart, target x,y, initial //0.02,2.82 is default start
}

29
src/scriptengine/script_kart.cpp
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@ -42,7 +42,7 @@ namespace Scripting{
float x = gen->GetArgFloat(1);
float y = gen->GetArgFloat(2);
float z = gen->GetArgFloat(3);
AbstractKart* kart = World::getWorld()->getKart(id);
kart->setXYZ(btVector3(x, y, z));
unsigned int index = World::getWorld()->getRescuePositionIndex(kart);
@ -52,6 +52,32 @@ namespace Scripting{
s.setRotation(btQuaternion(btVector3(0.0f, 1.0f, 0.0f), angle));
World::getWorld()->moveKartTo(kart, s);
}
void jumpKartTo(asIScriptGeneric *gen)
{
//attempts to project kart to target destination
//at present, assumes both initial and target location are
//on the same horizontal plane (z=k plane) and projects
//at a 45 degree angle.
int id = (int)gen->GetArgDWord(0);
float x = gen->GetArgFloat(1);
float y = gen->GetArgFloat(2);
//float velocity = gen->GetArgFloat(3);
//angle = pi/4 so t = v/(root 2 * g)
//d = t * v/root 2 so d = v^2/(2g) => v = root(2dg)
//component in x = component in y = root (dg)
AbstractKart* kart = World::getWorld()->getKart(id);
Vec3 pos = kart->getXYZ();
float dx = x - pos[0];
float dy = y - pos[2]; //blender uses xyz, bullet xzy
float d = (sqrtf(dx*dx + dy*dy));
float normalized_dx = dx / d;
float normalized_dy = dy / d;
float g = 9.81;
float velocity = sqrtf(d * g);
kart->setVelocity(btVector3(velocity * normalized_dx, velocity, velocity * normalized_dy));
}
void setVelocity(asIScriptGeneric *gen)
{
int id = (int)gen->GetArgDWord(0);
@ -68,6 +94,7 @@ namespace Scripting{
r = engine->RegisterGlobalFunction("void squashKart(int id, float time)", asFUNCTION(squashKart), asCALL_GENERIC); assert(r >= 0);
r = engine->RegisterGlobalFunction("void teleportKart(int id, float x, float y,float z)", asFUNCTION(teleportKart), asCALL_GENERIC); assert(r >= 0);
r = engine->RegisterGlobalFunction("void setVelocity(int id, float x, float y,float z)", asFUNCTION(setVelocity), asCALL_GENERIC); assert(r >= 0);
r = engine->RegisterGlobalFunction("void jumpKartTo(int id, float x, float y)", asFUNCTION(jumpKartTo), asCALL_GENERIC); assert(r >= 0);
}
}