redef class Boss
redef var actor is lazy do
var actor = new Actor(app.iss_model, center)
- actor.rotation = pi/2.0
+ actor.yaw = pi/2.0
return actor
end
var splatter = new Actor(app.splatter_model,
new Point3d[Float](center.x, 0.05 & 0.04, center.y))
splatter.scale = 32.0
- splatter.rotation = 2.0 * pi.rand
+ splatter.yaw = 2.0*pi.rand
app.actors.add splatter
end
# Set uniforms
program.scale.uniform 1.0
- program.rotation.uniform new Matrix.rotation(actor.rotation, 0.0, 1.0, 0.0)
+ program.rotation.uniform new Matrix.gamnit_euler_rotation(actor.pitch, actor.yaw, actor.roll)
program.translation.uniform(actor.center.x, -actor.center.y, actor.center.z, 0.0)
program.color.uniform(color[0], color[1], color[2], color[3])
program.is_surface.uniform is_surface
var t = clock.total.to_f
# Rotate the model
- actors.first.rotation = t
+ actors.first.yaw = t
# Move the light source
var dist_to_light = 20.0
# Apply a random model and rotation to new features
actor = new Actor(rule.models.rand,
new Point3d[Float](pos.x, 0.0, pos.y))
- actor.rotation = 2.0*pi.rand
+ actor.yaw = 2.0*pi.rand
actor.scale = 0.75
self.actor = actor
# Blast mark on the ground
var blast = new Actor(app.blast_model, new Point3d[Float](pos.x, 0.05 & 0.04, pos.y))
blast.scale = 3.0
- blast.rotation = 2.0*pi.rand
+ blast.yaw = 2.0*pi.rand
app.actors.add blast
# Smoke
actor.center.z = pos.y
end
- tank.actors[0].rotation = tank.heading + pi
- tank.actors[1].rotation = tank.turret.heading + pi
+ tank.actors[0].yaw = -tank.heading + pi
+ tank.actors[1].yaw = -tank.turret.heading + pi
# Keep going only for the local tank
var local_player = app.context.local_player
# Position of this sprite in world coordinates
var center: Point3d[Float] is writable
- # Rotation on the Z axis
- var rotation = 0.0 is writable
+ # Rotation around the X axis (+ looks up, - looks down)
+ #
+ # Positive values look up, and negative look down.
+ #
+ # All actor rotations follow the right hand rule.
+ # The default orientation of the model should look towards -Z.
+ var pitch = 0.0 is writable
+
+ # Rotation around the Y axis (+ turns left, - turns right)
+ #
+ # Positive values turn `self` to the left, and negative values to the right.
+ #
+ # All actor rotations follow the right hand rule.
+ # The default orientation of the model should look towards -Z.
+ var yaw = 0.0 is writable
+
+ # Rotation around the Z axis (looking to -Z: + turns counterclockwise, - clockwise)
+ #
+ # From the default camera point of view, looking down on the Z axis,
+ # positive values turn `self` counterclockwise, and negative values clockwise.
+ #
+ # All actor rotations follow the right hand rule.
+ # The default orientation of the model should look towards -Z.
+ var roll = 0.0 is writable
# Scale applied to the model
var scale = 1.0 is writable
# Actor specs
program.translation.uniform(actor.center.x, actor.center.y, actor.center.z, 0.0)
program.scale.uniform actor.scale
- program.rotation.uniform new Matrix.rotation(actor.rotation, 0.0, 1.0, 0.0)
+ program.rotation.uniform new Matrix.gamnit_euler_rotation(actor.pitch, actor.yaw, actor.roll)
# From mesh
program.coord.array_enabled = true
program.coord.array_enabled = true
program.coord.array(mesh.vertices, 3)
- program.rotation.uniform new Matrix.rotation(actor.rotation, 0.0, 1.0, 0.0)
+
+ program.rotation.uniform new Matrix.gamnit_euler_rotation(actor.pitch, actor.yaw, actor.roll)
program.ambient_color.uniform(ambient_color[0], ambient_color[1], ambient_color[2], ambient_color[3]*actor.alpha)
program.diffuse_color.uniform(diffuse_color[0], diffuse_color[1], diffuse_color[2], diffuse_color[3]*actor.alpha)
program.coord.array_enabled = true
program.coord.array(mesh.vertices, 3)
- program.rotation.uniform new Matrix.rotation(actor.rotation, 0.0, 1.0, 0.0)
+
+ program.rotation.uniform new Matrix.gamnit_euler_rotation(actor.pitch, actor.yaw, actor.roll)
program.normal.array_enabled = true
program.normal.array(mesh.normals, 3)
program.coord.array_enabled = true
program.coord.array(mesh.vertices, 3)
- program.rotation.uniform new Matrix.rotation(actor.rotation, 0.0, 1.0, 0.0)
+ program.rotation.uniform new Matrix.gamnit_euler_rotation(actor.pitch, actor.yaw, actor.roll)
var display = app.display
assert display != null
var rotated = self * rotation
self.items = rotated.items
end
+
+ # Rotation matrix from Euler angles `pitch`, `yaw` and `roll` in radians
+ #
+ # Apply a composition of intrinsic rotations around the axes x-y'-z''.
+ # Or `pitch` around the X axis, `yaw` around Y and `roll` around Z,
+ # applied successively. All rotations follow the right hand rule.
+ #
+ # This service aims to respect the world axes and logic of `gamnit`,
+ # it may not correspond to all needs.
+ new gamnit_euler_rotation(pitch, yaw, roll: Float)
+ do
+ var c1 = pitch.cos
+ var s1 = pitch.sin
+ var c2 = yaw.cos
+ var s2 = yaw.sin
+ var c3 = roll.cos
+ var s3 = roll.sin
+ return new Matrix.from(
+ [[ c2*c3, -c2*s3, -s2, 0.0],
+ [ c1*s3+c3*s1*s2, c1*c3-s1*s2*s3, c2*s1, 0.0],
+ [-s1*s3+c1*c3*s2, -c3*s1-c1*s2*s3, c1*c2, 0.0],
+ [ 0.0, 0.0, 0.0, 1.0]])
+ end
end
nitlanguage / nit.git / commitdiff