add camera zoom lookahead

This commit is contained in:
interfisch 2024-11-10 01:06:25 +01:00
parent 3c66799413
commit b1789e7e19
3 changed files with 64 additions and 68 deletions

View file

@ -156,16 +156,6 @@ func get_input():
else:
steer_direction=0 #drive straight
# Manual steering here
'''
var turn = 0
if Input.is_action_pressed("ui_right"):
turn += 1
if Input.is_action_pressed("ui_left"):
turn -= 1
if turn!=0:
steer_direction = turn*deg_to_rad(steering_angle)
'''
if running:
@ -218,9 +208,10 @@ func calculate_steering(delta:float):
func getRound():
var i=getNextCPindex()/checkpoints.size()
print("Round="+str(i)+" cpindex="+str(getNextCPindex())+" size="+str(checkpoints.size()))
return i
func check_markers():
if ray_cast_car.is_colliding():
#print("Marker: "+str(ray_cast_car.get_collider()))
@ -244,8 +235,8 @@ func check_markers():
if checkpoint_i>=0 and nextcp_i>=0: #found and there is a next checkpoint time free
if (nextcp_i%checkpoints.size())==checkpoint_i: #this cp is next cp
checkpointtimes[nextcp_i]=Gamestate.getTimeElapsed()
print("Player "+str(playerid)+" Checkpoint "+str(ray_cast_car.get_collider().name))
print("New CP array "+str(checkpointtimes))
#print("Player "+str(playerid)+" Checkpoint "+str(ray_cast_car.get_collider().name))
#print("New CP array "+str(checkpointtimes))
func constrain(val,a,b):
var vmin=min(a,b)

View file

@ -8,7 +8,11 @@ func getSpeed() -> float:
func getPosition():
return cbcar.position
func getPositionLookahead(t:float):
#return position of car in t seconds
return getPosition()+cbcar.velocity*t
func setPosition(p:Vector2):
cbcar.position=p

View file

@ -14,13 +14,14 @@ extends Node2D
const caroffset= 32+4 #space cars on start line
var viewCarMargin=Vector2(0.6,0.6) #1=zoom out full speed when car is at border. 0.9 zoom out full speed when car is 10% away from border
var viewCarMargin=Vector2(0.7,0.7) #1=zoom out full speed when car is at border. 0.9 zoom out full speed when car is 10% away from border
var viewCarMargin_zoomstart=viewCarMargin-Vector2(0.2,0.2) #start zooming
var viewCarMargin_zoombackup=viewCarMargin_zoomstart-Vector2(0.1,0.1) #start zooming back in
var zoomspeed=0.5
var zoomspeed_backup=0.1 #relative to screen size
var zoom_normal=1.5
const CAMERA_POSITION_SPEED=0.02 #0.0 - 1.0, higher=faster
var camera_zoom_out_lookahead_time=1 #predicted position of car in t seconds for camera coverage. greater value=earlier zoom out and movement of camera
var running=false
@ -70,59 +71,7 @@ func _process(delta: float) -> void:
if !countdown.is_stopped():
countdown_label.text=str(round(countdown.time_left))
var cars=cars.get_children()
var displayedCarCount=0
var maxCarSpeed=0
var minPos=Vector2.ZERO #min/max x and y position of all cars
var maxPos=Vector2.ZERO
var oneDriving=false
for c in cars: #check if any one car is still driving
if !c.hasFinished():
oneDriving=true
for c in cars:
if !c.hasFinished() or !oneDriving:
var carpos = c.getPosition()
maxCarSpeed=max(maxCarSpeed,c.getSpeed())
if displayedCarCount==0:
minPos.x=carpos.x
minPos.y=carpos.y
maxPos.x=carpos.x
maxPos.y=carpos.y
else:
minPos.x=min(minPos.x,carpos.x)
minPos.y=min(minPos.y,carpos.y)
maxPos.x=max(maxPos.x,carpos.x)
maxPos.y=max(maxPos.y,carpos.y)
displayedCarCount+=1
camera.position=lerp(camera.position,(minPos+maxPos)/2.0,CAMERA_POSITION_SPEED)
var viewsize = camera.get_viewport_rect().size
var carSpread=Vector2(maxPos.x-minPos.x,maxPos.y-minPos.y)
var calculatedViewCarMargin=carSpread*camera.zoom #when cars are screen width apart this number matches viewsize=camera.get_viewport_rect().size
var viewCarMargin_zoomstart_pixels=viewCarMargin_zoomstart*viewsize/camera.zoom
var viewCarMargin_pixels=viewCarMargin*viewsize/camera.zoom
var viewCarMargin_zoombackup_pixels=viewCarMargin_zoombackup*viewsize/camera.zoom
var mapped_zoomspeed_x=constrain(remap(calculatedViewCarMargin.x , viewCarMargin_zoomstart_pixels.x,viewCarMargin_pixels.x,0,zoomspeed),0,zoomspeed)
var mapped_zoomspeed_y=constrain(remap(calculatedViewCarMargin.y , viewCarMargin_zoomstart_pixels.y,viewCarMargin_pixels.y,0,zoomspeed),0,zoomspeed)
var mapped_zoomspeed=max(mapped_zoomspeed_x,mapped_zoomspeed_y)
if calculatedViewCarMargin.x>viewCarMargin_zoomstart_pixels.x or calculatedViewCarMargin.y>viewCarMargin_zoomstart_pixels.y: #cars not in view
camera.zoom-=Vector2(mapped_zoomspeed*delta,mapped_zoomspeed*delta)
$hud/debuglabel.set("theme_override_colors/font_color",Color(0,0,0.7))
elif calculatedViewCarMargin.x<viewCarMargin_zoombackup_pixels.x and calculatedViewCarMargin.y<viewCarMargin_zoombackup_pixels.y: #cars in view again
if camera.zoom.x<zoom_normal:
camera.zoom+=Vector2(zoomspeed_backup*delta,zoomspeed_backup*delta)
updateCameraMovement(delta)
#$hud/debuglabel.text=""+str(calculatedViewCarMargin)+" / "+str(viewCarMargin_zoomstart)+" zoomspeed="+str(mapped_zoomspeed)
#$hud/debuglabel.text=""+str(calculatedViewCarMargin)+" / "+str(viewsize)+" zoomspeed="+str(mapped_zoomspeed)
@ -143,6 +92,58 @@ func _process(delta: float) -> void:
if !anyplayerkeypressed and timer_close.is_stopped():
timer_close.start() #start timer when no key is pressed
func updateCameraMovement(delta: float):
var cars=cars.get_children()
var displayedCarCount=0
var maxCarSpeed=0
var minPos=Vector2.ZERO #min/max x and y position of all cars
var maxPos=Vector2.ZERO
var oneDriving=false
for c in cars: #check if any one car is still driving
if !c.hasFinished():
oneDriving=true
for c in cars:
if !c.hasFinished() or !oneDriving:
var carpos = c.getPosition()
var carposLookahead= c.getPositionLookahead(camera_zoom_out_lookahead_time)
$hud/debuglabel.text=""+str(carpos)+"\n"+str(carposLookahead)
maxCarSpeed=max(maxCarSpeed,c.getSpeed())
if displayedCarCount==0:
minPos=carpos.min(carposLookahead)
maxPos=carpos.max(carposLookahead)
else:
minPos=minPos.min(carpos).min(carposLookahead)
maxPos=maxPos.max(carpos).max(carposLookahead)
displayedCarCount+=1
camera.position=lerp(camera.position,(minPos+maxPos)/2.0,CAMERA_POSITION_SPEED)
var viewsize = camera.get_viewport_rect().size
var carSpread=Vector2(maxPos.x-minPos.x,maxPos.y-minPos.y)
var calculatedViewCarMargin=carSpread*camera.zoom #when cars are screen width apart this number matches viewsize=camera.get_viewport_rect().size
var viewCarMargin_zoomstart_pixels=viewCarMargin_zoomstart*viewsize/camera.zoom
var viewCarMargin_pixels=viewCarMargin*viewsize/camera.zoom
var viewCarMargin_zoombackup_pixels=viewCarMargin_zoombackup*viewsize/camera.zoom
var mapped_zoomspeed_x=constrain(remap(calculatedViewCarMargin.x , viewCarMargin_zoomstart_pixels.x,viewCarMargin_pixels.x,0,zoomspeed),0,zoomspeed)
var mapped_zoomspeed_y=constrain(remap(calculatedViewCarMargin.y , viewCarMargin_zoomstart_pixels.y,viewCarMargin_pixels.y,0,zoomspeed),0,zoomspeed)
var mapped_zoomspeed=max(mapped_zoomspeed_x,mapped_zoomspeed_y)
if calculatedViewCarMargin.x>viewCarMargin_zoomstart_pixels.x or calculatedViewCarMargin.y>viewCarMargin_zoomstart_pixels.y: #cars not in view
camera.zoom-=Vector2(mapped_zoomspeed*delta,mapped_zoomspeed*delta)
elif calculatedViewCarMargin.x<viewCarMargin_zoombackup_pixels.x and calculatedViewCarMargin.y<viewCarMargin_zoombackup_pixels.y: #cars in view again
if camera.zoom.x<zoom_normal:
camera.zoom+=Vector2(zoomspeed_backup*delta,zoomspeed_backup*delta)
func _input(ev):
#if ev is InputEventKey and