zntg/allg5/primitives.go

package allg5

// #include <allegro5/allegro.h>
// #include <allegro5/allegro_primitives.h>
import "C"
import "unsafe"

func DrawFilledRectangle(x1, y1, x2, y2 float32, c Color) {
	C.al_draw_filled_rectangle(C.float(x1), C.float(y1), C.float(x2), C.float(y2), c.color)
}

func DrawFilledTriangle(x1, y1, x2, y2, x3, y3 float32, c Color) {
	C.al_draw_filled_triangle(C.float(x1), C.float(y1), C.float(x2), C.float(y2), C.float(x3), C.float(y3), c.color)
}

func DrawLine(x1, y1, x2, y2 float32, c Color, thickness float32) {
	C.al_draw_line(C.float(x1), C.float(y1), C.float(x2), C.float(y2), c.color, C.float(thickness))
}

func DrawPolyline(vertices []float32, c Color, thickness float32) {
	C.al_draw_polyline((*C.float)(unsafe.Pointer(&vertices[0])), 8, C.int(len(vertices)>>1), C.ALLEGRO_LINE_JOIN_ROUND, C.ALLEGRO_LINE_CAP_ROUND, c.color, C.float(thickness), 1)
}

func DrawRectangle(x1, y1, x2, y2 float32, c Color, thickness float32) {
	C.al_draw_rectangle(C.float(x1), C.float(y1), C.float(x2), C.float(y2), c.color, C.float(thickness))
}

func DrawTriangle(x1, y1, x2, y2, x3, y3 float32, c Color, thickness float32) {
	C.al_draw_triangle(C.float(x1), C.float(y1), C.float(x2), C.float(y2), C.float(x3), C.float(y3), c.color, C.float(thickness))
}