Graphics (Basic4GL)

2D graphics in Basic4GL are displayed through OpenGL.

Screen and Window

• Create a Game Screen
• Run Basic4GL in a Window

Screen and Window Functions

• ResizeSpriteArea()
• SpriteAreaHeight()
• SpriteAreaWidth()

Sprites

• Load and Display a Sprite
• Load and Display a Non-Square Sprite
• Rotate a Sprite
• Rotate a Sprite Automatically
• Manage Multiple Sprites
• Scale a Sprite

Sprite Functions

• BindSprite() - To manage multiple sprites
• DeleteSprite() -
• LoadTexture() - load a texture (image).
• NewSprite() - create a sprite from a texture.

Animating Sprites

• AnimateSprites() - animate the sprites.
• SprSetAnimDone()
• SprAnimLoop()
• SprAnimSpeed()
• SprFrame()
• SprSetAnimLoop()
• SprSetAnimSpeed()
• SprSetFrame()

Collision Detection

• SprBottom()
• SprLeft()
• SprRight()
• SprTop()

Color

• SprColor()
• SprSetColor()

Depth (Drawing Order)

• SprSetZOrder() - Change the drawing order.
• SprZOrder() - check the drawing order.

Flippin'

• SprSetXFlip()
• SprSetYFlip()
• SprXFlip()
• SprYFlip()

Moving

• SprPos() - returns the position of the sprite
• SprSetPos() - Set the x and y of the sprite
• SprSetVel() -Sets the velocity x,y dir.
• SprSetX() - Set the x-position of the sprite.
• SprSetXVel()
• SprSetY() - Set the y-position of the sprite.
• SprSetYVel()
• SprVel()
• SprX() - returns the x-position of the sprite
• SprXVel()
• SprY() - returns the y-position of the sprite
• SprYVel()

Rotation

• SprAngle() - Check the angle.
• SprSetAngle() - Sets the rotation of the sprite
• SprSetSpin() - Set the constant angle spin
• SprSpin()

Scaling and Size

• SprScale() - check the scaling factor
• SprSetScale() - set the scaling factor
• SprSetSize() - set the height and width of a sprite
• SprSetXSize() - set the width of a sprite
• SprSetYSize() - set the height of a sprite
• SprXSize() - width of sprite
• SprYSize() - height of sprite

Scrolling

• SprParallax()
• SprSetParallax()

Sprite Centre

• SprSetXCentre() - set the horizontal center
• SprSetYCentre() - set the vertical center
• SprXCenter() - check the horizontal center
• SprYCenter() - check the vertical center

Textures

• SprAddTexture() - add a texture to a sprite
• SprAddTextures() - and an array of textures to a sprite
• SprSetTexture() - set the texture of a sprite
• SprSetTextures() - set an array of textures

Transparency

• SprAlpha()
• SprSetAlpha()
• SprSetSolid()
• SprSolid()

Visibility

• SprSetVisible() - set sprite visibility.
• SprVisible() - check if sprite visible.