Fixup
- bitmap.go format - c.go cleanup
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2924980035
commit
27eae9dc8b
@ -5,93 +5,93 @@ package allegro5
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import "C"
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import (
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"fmt"
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"unsafe"
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"fmt"
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"unsafe"
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)
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// Bitmap represents an in memory bitmap
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type Bitmap struct {
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bitmap *C.ALLEGRO_BITMAP
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width int
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height int
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bitmap *C.ALLEGRO_BITMAP
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width int
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height int
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}
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type DrawOptions struct {
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Center bool
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Scale *Scale
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Tint *Color
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Center bool
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Scale *Scale
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Tint *Color
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}
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type Scale struct {
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Horizontal float32
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Vertical float32
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Horizontal float32
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Vertical float32
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}
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// NewBitmap creates a new bitmap of given width and height
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func NewBitmap(width, height int) (*Bitmap, error) {
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b := C.al_create_bitmap(C.int(width), C.int(height))
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if nil == b {
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return nil, fmt.Errorf("Error creating bitmap")
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}
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return &Bitmap{b, width, height}, nil
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b := C.al_create_bitmap(C.int(width), C.int(height))
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if nil == b {
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return nil, fmt.Errorf("Error creating bitmap")
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}
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return &Bitmap{b, width, height}, nil
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}
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// LoadBitmap tries to load the image at the specified path as a bitmap
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// LoadBitmap tries to load the image at the specified path as a bitmap
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func LoadBitmap(path string) (*Bitmap, error) {
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p := C.CString(path)
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defer C.free(unsafe.Pointer(p))
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b := C.al_load_bitmap(p)
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if nil == b {
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return nil, fmt.Errorf("Error loading bitmap")
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}
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width := int(C.al_get_bitmap_width(b))
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height := int(C.al_get_bitmap_height(b))
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return &Bitmap{b, width, height}, nil
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p := C.CString(path)
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defer C.free(unsafe.Pointer(p))
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b := C.al_load_bitmap(p)
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if nil == b {
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return nil, fmt.Errorf("Error loading bitmap")
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}
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width := int(C.al_get_bitmap_width(b))
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height := int(C.al_get_bitmap_height(b))
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return &Bitmap{b, width, height}, nil
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}
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// Draw draws the bitmap at the given location
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func (b *Bitmap) Draw(left, top float32) {
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C.al_draw_bitmap(b.bitmap, C.float(left), C.float(top), 0)
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C.al_draw_bitmap(b.bitmap, C.float(left), C.float(top), 0)
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}
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func (b *Bitmap) DrawOptions(left, top float32, options DrawOptions) {
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width := float32(b.width)
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height := float32(b.height)
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width := float32(b.width)
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height := float32(b.height)
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scale := nil != options.Scale
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if scale {
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width *= options.Scale.Horizontal
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height *= options.Scale.Vertical
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}
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if options.Center {
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left -= width * 0.5
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top -= height * 0.5
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}
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if scale {
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if nil == options.Tint {
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C.al_draw_scaled_bitmap(b.bitmap, 0, 0, C.float(b.width), C.float(b.height), C.float(left), C.float(top), C.float(width), C.float(height), 0)
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} else {
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C.al_draw_tinted_scaled_bitmap(b.bitmap, options.Tint.color, 0, 0, C.float(b.width), C.float(b.height), C.float(left), C.float(top), C.float(width), C.float(height), 0)
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}
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} else {
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if nil == options.Tint {
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C.al_draw_bitmap(b.bitmap, C.float(left), C.float(top), 0)
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} else {
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C.al_draw_tinted_bitmap(b.bitmap, options.Tint.color, C.float(left), C.float(top), 0)
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}
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}
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scale := nil != options.Scale
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if scale {
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width *= options.Scale.Horizontal
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height *= options.Scale.Vertical
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}
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if options.Center {
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left -= width * 0.5
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top -= height * 0.5
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}
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if scale {
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if nil == options.Tint {
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C.al_draw_scaled_bitmap(b.bitmap, 0, 0, C.float(b.width), C.float(b.height), C.float(left), C.float(top), C.float(width), C.float(height), 0)
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} else {
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C.al_draw_tinted_scaled_bitmap(b.bitmap, options.Tint.color, 0, 0, C.float(b.width), C.float(b.height), C.float(left), C.float(top), C.float(width), C.float(height), 0)
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}
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} else {
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if nil == options.Tint {
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C.al_draw_bitmap(b.bitmap, C.float(left), C.float(top), 0)
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} else {
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C.al_draw_tinted_bitmap(b.bitmap, options.Tint.color, C.float(left), C.float(top), 0)
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}
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}
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}
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func (b *Bitmap) Width() int {
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return b.width
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return b.width
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}
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func (b *Bitmap) Height() int {
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return b.height
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return b.height
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}
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// Destroy destroys the bitmap
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func (b *Bitmap) Destroy() {
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C.al_destroy_bitmap(b.bitmap)
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}
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C.al_destroy_bitmap(b.bitmap)
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}
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@ -1,9 +1,5 @@
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package allegro5
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// #cgo linux pkg-config: allegro-5 allegro_font-5 allegro_image-5 allegro_primitives-5 allegro_ttf-5
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// #cgo windows LDFLAGS: -lallegro
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// #cgo windows LDFLAGS: -lallegro_font
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// #cgo windows LDFLAGS: -lallegro_image
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// #cgo windows LDFLAGS: -lallegro_primitives
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// #cgo windows LDFLAGS: -lallegro_ttf
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// #cgo !windows pkg-config: allegro-5 allegro_font-5 allegro_image-5 allegro_primitives-5 allegro_ttf-5
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// #cgo windows LDFLAGS: -lallegro -lallegro_font -lallegro_image -lallegro_primitives -lallegro_ttf
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import "C"
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