The ScaleSpriteY command lets the user scale the sprites height without any changing the Width scaling.
Scale Values
0.00 = Sprite is scaled by zero.
0.25 = Sprite is 25% of it's normal size
0.50 = Sprite is 50% of it's normal size
0.75 = Sprite is 75% of it's normal size
1.00 = Sprite is 100% of it's normal size.
2.00 = Sprite is 200% of it's normal size.
3.00 = Sprite is 300% of it's normal size.
FACTS:
* Using a negative scaling value will Flip / Mirror this sprite
* In order to see the effect of sprite scaling, the sprite needs to set to Rotation Mode using the SpriteDrawMode command.
* Note: For the best performance!, it's highly recommended that a scaled sprites image be previously prepared in FX image format (see PrepareFXimage, LoadFxIMage)
Mini Tutorial:
This example is really 3 parts. Part #1 creates a image out of a triangle shape and a circle. Part #2 creates the sprite, the sprite is then set to render the previously created image as it's graphic to rotate. Part #3 is the main do/loop. Which allows the user to rotates the sprites with the left/right arrows key controls and then renders it
Cls RGB(0,0,0)
; Create a Little triangle image
Size=50
CreateConvexShape 1,Size*0.50,3
RotateShape 1,30,1
DrawShape 1,Size/2,size/2,2
CircleC size/2,size/2,size/5,1,RndRGB()
CircleC size/4,size/4,size/6,1,RndRGB()
MyImage=GetFreeImage()
GetImage MyImage,0,0,size,size
PrepareFXImage MyImage
; ===========================
; Part 2 - Create our sprites
; ===========================
; Create the Sprite
CreateSprite 1
; Set sprite Center it's handle on any image
AutoCenterSpriteHandle 1,true
; set this sprite to use the previously created image
SpriteImage 1,MyImage
; set the sprites drawing mode to ROTATION (mode 2)
SpriteDrawMode 1,2
; Position the sprite at 100,100
PositionSprite 1,100,100
; Create a second sprite
CreateSprite 2
; copy the settings from sprite 1, into sprite 2
CopySprite 1,2
; Position the sprite at 350,250
PositionSprite 2,350,250
; Create a sprite
CreateSprite 3
; copy the settings from sprite 1, into sprite 3
CopySprite 1,3
; Use a Negate Scale to MIRROR this sprite.
ScaleSpriteX 3,-1
; Position the sprite at 300,100
PositionSprite 3,300,100
; Create a sprite
CreateSprite 4
; copy the settings from sprite 1, into sprite 4
CopySprite 1,4
; Use a Negate Scale to FLIP this sprite.
ScaleSpriteY 4,-1
; Position the sprite at 400,100
PositionSprite 4,400,100
; ========================
; Part 3 - The main Loop
; ========================
; Start a do/loop
Do
; clear the screen
Cls RGB(0,0,0)
; bump the scaler angle
Angle#=WrapAngle(angle#,1)
; Set Sprites 2's X scaling factor
ScaleSpriteX 2,2+CosRadius(angle#,0.5)
; Set Sprites 2's Y scaling factor
ScaleSpriteY 2,2+SinRadius(angle#,0.5)
; Display the current scaling of this sprite
Print "Sprite Scaling Stuff"
Print "Sprites Scale X:"+Str$(GetSpriteScaleX(2))
Print "Sprites Scale Y:"+Str$(GetSpriteScaleY(2))
; Draw all the created sprites
DrawAllSprites
; Draw the screen
Sync
; Loop back to the DO statement
Loop
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This example would output the following text.
Sprite Scaling Stuff
Sprites Scale X:0.4545
Sprites Scale Y:8.5433
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