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This commit is contained in:
Miloslav Ciz 2024-10-06 21:53:11 +02:00
parent c79d21857b
commit d0bbd09856
3 changed files with 126 additions and 39 deletions
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31
assets.h
View file

@ -26,7 +26,7 @@ static const uint8_t map1[] =
LCR_MAP_BLOCK(LCR_BLOCK_START,1,1,1,0,0),
LCR_MAP_BLOCK(LCR_BLOCK_FULL,0,0,0,LCR_BLOCK_MATERIAL_CONCRETE,0),
LCR_MAP_BLOCK(LCR_BLOCK_FULL,0,0,0,LCR_BLOCK_MATERIAL_GRASS,0),
LCR_MAP_BLOCK(LCR_BLOCK_CUBOID_FILL,15,1,20,0,0),
LCR_MAP_BLOCK(LCR_BLOCK_FULL,0,0,20,LCR_BLOCK_MATERIAL_CONCRETE,0),
@ -44,12 +44,35 @@ LCR_MAP_BLOCK(LCR_BLOCK_CUBOID_FILL,10,2,1,0,0),
LCR_MAP_BLOCK(LCR_BLOCK_LEFT,9,0,20,LCR_BLOCK_MATERIAL_CONCRETE,0),
LCR_MAP_BLOCK(LCR_BLOCK_CUBOID_FILL,8,1,8,0,0),
LCR_MAP_BLOCK(LCR_BLOCK_RAMP_CURVED_WALL,3,4,4,LCR_BLOCK_MATERIAL_CONCRETE,0),
LCR_MAP_BLOCK(LCR_BLOCK_RAMP_CURVED_WALL,3,1,8,LCR_BLOCK_MATERIAL_CONCRETE,0),
LCR_MAP_BLOCK(LCR_BLOCK_RAMP_STEEP,3,2,8,LCR_BLOCK_MATERIAL_CONCRETE,0),
LCR_MAP_BLOCK(LCR_BLOCK_RAMP_CURVED_PLAT,2,1,8,LCR_BLOCK_MATERIAL_CONCRETE,0),
LCR_MAP_BLOCK(LCR_BLOCK_RAMP_STEEP,2,2,8,LCR_BLOCK_MATERIAL_CONCRETE,0),
LCR_MAP_BLOCK(LCR_BLOCK_RAMP_STEEP,3,4,8,LCR_BLOCK_MATERIAL_CONCRETE,LCR_BLOCK_TRANSFORM_FLIP_V),
LCR_MAP_BLOCK(LCR_BLOCK_RAMP_CURVED_PLAT,3,5,8,LCR_BLOCK_MATERIAL_CONCRETE,LCR_BLOCK_TRANSFORM_FLIP_V),
LCR_MAP_BLOCK(LCR_BLOCK_RAMP_CURVED_PLAT,4,5,8,LCR_BLOCK_MATERIAL_CONCRETE,LCR_BLOCK_TRANSFORM_FLIP_V),
/*
LCR_MAP_BLOCK(LCR_BLOCK_FULL,15,0,0,LCR_BLOCK_MATERIAL_GRASS,0),
LCR_MAP_BLOCK(LCR_BLOCK_RAMP_CURVED_WALL,4,1,6,LCR_BLOCK_MATERIAL_CONCRETE,LCR_BLOCK_TRANSFORM_ROT_180),
LCR_MAP_BLOCK(LCR_BLOCK_RAMP_STEEP,4,2,6,LCR_BLOCK_MATERIAL_CONCRETE,LCR_BLOCK_TRANSFORM_ROT_180),
LCR_MAP_BLOCK(LCR_BLOCK_RAMP_CURVED_PLAT,5,1,6,LCR_BLOCK_MATERIAL_CONCRETE,LCR_BLOCK_TRANSFORM_ROT_180),
LCR_MAP_BLOCK(LCR_BLOCK_RAMP_STEEP,5,2,6,LCR_BLOCK_MATERIAL_CONCRETE,LCR_BLOCK_TRANSFORM_ROT_180),
LCR_MAP_BLOCK(LCR_BLOCK_RAMP_STEEP,4,4,6,LCR_BLOCK_MATERIAL_CONCRETE,LCR_BLOCK_TRANSFORM_FLIP_V | LCR_BLOCK_TRANSFORM_ROT_180),
LCR_MAP_BLOCK(LCR_BLOCK_RAMP_CURVED_PLAT,4,5,6,LCR_BLOCK_MATERIAL_CONCRETE,LCR_BLOCK_TRANSFORM_FLIP_V | LCR_BLOCK_TRANSFORM_ROT_180),
LCR_MAP_BLOCK(LCR_BLOCK_RAMP_CURVED_PLAT,3,5,6,LCR_BLOCK_MATERIAL_CONCRETE,LCR_BLOCK_TRANSFORM_FLIP_V | LCR_BLOCK_TRANSFORM_ROT_180),
LCR_MAP_BLOCK(LCR_BLOCK_FULL,2,1,9,LCR_BLOCK_MATERIAL_CONCRETE,0),
LCR_MAP_BLOCK(LCR_BLOCK_CUBOID_FILL,2,5,1,0,0),
LCR_MAP_BLOCK(LCR_BLOCK_FULL,4,1,5,LCR_BLOCK_MATERIAL_CONCRETE,0),
LCR_MAP_BLOCK(LCR_BLOCK_CUBOID_FILL,2,5,1,0,0),
LCR_MAP_BLOCK(LCR_BLOCK_FULL,3,6,6,LCR_BLOCK_MATERIAL_CONCRETE,0),
LCR_MAP_BLOCK(LCR_BLOCK_CUBOID_FILL,2,1,3,0,0),
LCR_MAP_BLOCK(LCR_BLOCK_FULL,15,0,0,LCR_BLOCK_MATERIAL_CONCRETE,0),
LCR_MAP_BLOCK(LCR_BLOCK_CUBOID_FILL,10,1,15,0,0),
/*
LCR_MAP_BLOCK(LCR_BLOCK_FULL,25,0,0,LCR_BLOCK_MATERIAL_ICE,0),
LCR_MAP_BLOCK(LCR_BLOCK_CUBOID_FILL,10,1,15,0,0),

2
map.h
View file

@ -557,6 +557,8 @@ void LCR_mapGetBlockShape(uint8_t blockType, uint8_t transform,
ADD(6,0,6) ADD(6,4,6) ADD(6,4,5) // right
ADD(0,4,5) ADD(6,4,5) ADD(0,4,6) // top
ADD(0,4,6) ADD(6,4,5) ADD(6,4,6)
// fall through
case LCR_BLOCK_RAMP_CURVED:
{
uint8_t plusZ = blockType == LCR_BLOCK_RAMP_CURVED;

132
racing.h
View file

@ -32,6 +32,16 @@ typedef int32_t LCR_GameUnit; ///< abstract game unit
#define LCR_CAR_TURN_SPEED (LCR_GAME_UNIT / 18)
#define LCR_CAR_TURN_MAX ((7 * LCR_GAME_UNIT) / 24)
#define LCR_CAR_FORWARD_FRICTION_ICE (TPE_F / 200)
#define LCR_CAR_TURN_FRICTION_ICE (TPE_F / 20)
#define LCR_CAR_ACCELERATION_ICE (LCR_PHYSICS_UNIT / 100)
#define LCR_CAR_FORWARD_FRICTION_DIRT (TPE_F / 7)
#define LCR_CAR_TURN_FRICTION_DIRT (TPE_F / 2)
#define LCR_CAR_TURN_FRICTION_GRASS (4 * (TPE_F / 5))
#define LCR_CAR_ACCELERATION_GRASS (LCR_PHYSICS_UNIT / 20)
#define LCR_CAR_JOINTS 5
#define LCR_CAR_CONNECTIONS 10
@ -144,11 +154,13 @@ TPE_Vec3 _LCR_racingBlockEnvFunc(TPE_Vec3 point, const uint8_t *block)
_CHECK_NEXT(TPE_envAABox(point,TPE_vec3(5 * LCR_PHYSICS_UNIT / 12,0,0),
TPE_vec3(LCR_PHYSICS_UNIT / 12,LCR_PHYSICS_UNIT / 4,LCR_PHYSICS_UNIT
/ 2)));
// fall through
case LCR_BLOCK_RAMP_CURVED_PLAT:
_CHECK_NEXT(TPE_envAABox(point,TPE_vec3(0,0,5 * LCR_PHYSICS_UNIT / 12),
TPE_vec3(LCR_PHYSICS_UNIT / 2,LCR_PHYSICS_UNIT / 4,LCR_PHYSICS_UNIT / 12
)));
// fall through
case LCR_BLOCK_RAMP_CURVED:
{
@ -524,14 +536,22 @@ LCR_GameUnit LCR_racingGetWheelSteer(void)
return LCR_racing.wheelSteer;
}
void _LCR_racingWheelAccelerate(unsigned int wheel, TPE_Vec3 dir)
void _LCR_racingWheelAccelerate(unsigned int wheel, TPE_Vec3 dir,
uint8_t material)
{
TPE_Unit acc =
material == LCR_BLOCK_MATERIAL_ICE ?
LCR_CAR_ACCELERATION_ICE :
(material == LCR_BLOCK_MATERIAL_GRASS ?
LCR_CAR_ACCELERATION_GRASS :
LCR_CAR_ACCELERATION);
LCR_racing.carBody.joints[wheel].velocity[0] +=
(dir.x * LCR_CAR_ACCELERATION) / TPE_F;
(dir.x * acc) / TPE_F;
LCR_racing.carBody.joints[wheel].velocity[1] +=
(dir.y * LCR_CAR_ACCELERATION) / TPE_F;
(dir.y * acc) / TPE_F;
LCR_racing.carBody.joints[wheel].velocity[2] +=
(dir.z * LCR_CAR_ACCELERATION) / TPE_F;
(dir.z * acc) / TPE_F;
}
int _LCR_racingCarShapeOK(void)
@ -557,6 +577,8 @@ void LCR_racingStep(unsigned int input)
LCR_LOG2("racing step start");
TPE_Vec3 carForw, carRight, carUp;
uint8_t groundMat = LCR_BLOCK_MATERIAL_CONCRETE; // material under wheels
int groundBlockIndex = -1;
carForw = TPE_vec3Normalized(TPE_vec3Plus(
TPE_vec3Minus(LCR_racing.carBody.joints[0].position,
@ -572,6 +594,47 @@ void LCR_racingStep(unsigned int input)
carUp = TPE_vec3Cross(carForw,carRight);
if ((LCR_racing.wheelCollisions & 0x0f) != 0x0f) // EXPERIMENTAL: don't apply gravity with all wheels on ground
TPE_bodyApplyGravity(&(LCR_racing.carBody),LCR_GRAVITY);
if (LCR_racing.wheelCollisions) // at least one wheel on ground?
{
TPE_Unit upDot = TPE_vec3Dot(carUp,TPE_vec3(0,TPE_F,0));
if (upDot > TPE_F / 8 || upDot < -1 * TPE_F / 8) // TODO: consts
{
uint8_t
gx = (LCR_racing.carPositions[0].x + (LCR_MAP_SIZE_BLOCKS / 2) *
LCR_GAME_UNIT) / LCR_GAME_UNIT,
gy = (LCR_racing.carPositions[0].y + (LCR_MAP_SIZE_BLOCKS / 2) *
(LCR_GAME_UNIT / 2)) / (LCR_GAME_UNIT / 2),
gz = (LCR_racing.carPositions[0].z + (LCR_MAP_SIZE_BLOCKS / 2) *
LCR_GAME_UNIT) / LCR_GAME_UNIT;
TPE_Unit yMod = (LCR_racing.carPositions[0].y + LCR_MAP_SIZE_BLOCKS *
LCR_GAME_UNIT / 2) % (LCR_GAME_UNIT / 2);
if (upDot > 0 && yMod < LCR_GAME_UNIT / 2) // TODO: const
groundBlockIndex = LCR_mapGetBlockAt(gx,gy - 1,gz);
else if (upDot < 0 && yMod > LCR_GAME_UNIT / 2)
groundBlockIndex = LCR_mapGetBlockAt(gx,gy + 1,gz);
if (groundBlockIndex == -1)
groundBlockIndex = LCR_mapGetBlockAt(gx,gy,gz);
}
if (groundBlockIndex != -1)
groundMat = LCR_mapBlockGetMaterial(
LCR_currentMap.blocks + groundBlockIndex * LCR_BLOCK_SIZE);
}
LCR_racing.carBody.friction =
groundMat == LCR_BLOCK_MATERIAL_ICE ?
LCR_CAR_FORWARD_FRICTION_ICE :
(groundMat == LCR_BLOCK_MATERIAL_DIRT ?
LCR_CAR_FORWARD_FRICTION_DIRT :
LCR_CAR_FORWARD_FRICTION);
if (input)
{
unsigned char steering = 0;
@ -615,13 +678,13 @@ void LCR_racingStep(unsigned int input)
{
if (input & LCR_RACING_INPUT_FORW)
{
_LCR_racingWheelAccelerate(0,carForw);
_LCR_racingWheelAccelerate(1,carForw);
_LCR_racingWheelAccelerate(0,carForw,groundMat);
_LCR_racingWheelAccelerate(1,carForw,groundMat);
}
else if (input & LCR_RACING_INPUT_BACK)
{
_LCR_racingWheelAccelerate(0,TPE_vec3TimesPlain(carForw,-1));
_LCR_racingWheelAccelerate(1,TPE_vec3TimesPlain(carForw,-1));
_LCR_racingWheelAccelerate(0,TPE_vec3TimesPlain(carForw,-1),groundMat);
_LCR_racingWheelAccelerate(1,TPE_vec3TimesPlain(carForw,-1),groundMat);
}
}
@ -649,7 +712,15 @@ void LCR_racingStep(unsigned int input)
/* friction is in the direction if the axis and its magnitude is
determined by the dot product (angle) of the axis and velocity */
TPE_Vec3 fric = TPE_vec3Times(ja,(TPE_vec3Dot(ja,jv) *
LCR_CAR_TURN_FRICTION) / TPE_F);
(groundMat == LCR_BLOCK_MATERIAL_CONCRETE ?
LCR_CAR_TURN_FRICTION :
(groundMat == LCR_BLOCK_MATERIAL_DIRT ?
LCR_CAR_TURN_FRICTION_DIRT :
(
groundMat == LCR_BLOCK_MATERIAL_GRASS ?
LCR_CAR_TURN_FRICTION_GRASS :
LCR_CAR_TURN_FRICTION_ICE)))
) / TPE_F);
jv = TPE_vec3Minus(jv,fric); // subtract the friction
@ -663,35 +734,25 @@ void LCR_racingStep(unsigned int input)
(!(input & LCR_RACING_INPUT_RIGHT)))
LCR_racing.wheelSteer /= 2;
if ((LCR_racing.wheelCollisions & 0x0f) != 0x0f) // EXPERIMENTAL: don't apply gravity with all wheels on ground
TPE_bodyApplyGravity(&(LCR_racing.carBody),LCR_GRAVITY);
LCR_racing.wheelCollisions <<= 4;
LCR_LOG2("gonna step physics engine");
TPE_worldStep(&(LCR_racing.physicsWorld));
LCR_LOG2("stepping physics engine done");
TPE_Vec3 tmpVec = LCR_racing.carPositions[0];
TPE_Vec3 wheelAverage =
_LCR_TPE_vec3DividePlain(
TPE_Vec3 wheelAverage = _LCR_TPE_vec3DividePlain(
TPE_vec3Plus(
TPE_vec3Plus(
LCR_racing.carBody.joints[0].position,
LCR_racing.carBody.joints[1].position),
TPE_vec3Plus(
LCR_racing.carBody.joints[2].position,
LCR_racing.carBody.joints[3].position)),4);
TPE_vec3Plus(
LCR_racing.carBody.joints[0].position,
LCR_racing.carBody.joints[1].position),
TPE_vec3Plus(
LCR_racing.carBody.joints[2].position,
LCR_racing.carBody.joints[3].position)),4);
LCR_racing.carPositions[0] =
_LCR_TPE_vec3DividePlain(
TPE_vec3TimesPlain(
wheelAverage,LCR_GAME_UNIT),
LCR_PHYSICS_UNIT);
LCR_racing.carPositions[0] = _LCR_TPE_vec3DividePlain(
TPE_vec3TimesPlain(wheelAverage,LCR_GAME_UNIT),LCR_PHYSICS_UNIT);
LCR_racing.carPositions[0] = // smooth the position
TPE_vec3KeepWithinBox(LCR_racing.carPositions[1],LCR_racing.carPositions[0],
@ -708,13 +769,9 @@ LCR_racing.carPositions[0] =
LCR_racing.carRotations[1] = LCR_racing.carRotations[0];
LCR_racing.carRotations[0] = tmpVec;
TPE_Unit angle =
TPE_vec3Dot(carUp,TPE_vec3Normalized(TPE_vec3Minus(
LCR_racing.carBody.joints[4].position,
LCR_racing.carBody.joints[0].position)));
TPE_Unit angle = TPE_vec3Dot(carUp,TPE_vec3Normalized(TPE_vec3Minus(
LCR_racing.carBody.joints[4].position,
LCR_racing.carBody.joints[0].position)));
if (angle < TPE_F / 4) // TODO: magic constant
{
@ -742,6 +799,11 @@ LCR_racing.carPositions[0] =
}
}
if ((LCR_racing.carBody.flags & TPE_BODY_FLAG_UNRESOLVED) ||
!_LCR_racingCarShapeOK())
{