init

examples/coords + screenwriter.lua

@@ -0,0 +1,115 @@
+simulated_resolution = v2(1920, 1080)
+
+function screenwriter_to_coords(pos, scale)
+
+    x = pos.x
+    y = pos.y
+    width = scale.x
+    height = scale.y
+
+    x_px = x * simulated_resolution.x / 2 + simulated_resolution.x / 2
+    y_px = y * simulated_resolution.y / 2 + simulated_resolution.y / 2
+    width_px = width * simulated_resolution.x / 2 + simulated_resolution.x / 2
+    height_px = height * simulated_resolution.y / 2 + simulated_resolution.y / 2
+
+    x_left = x_px - width_px / 2
+    x_right = x_px + width_px / 2
+    y_top = y_px - height_px / 2
+    y_bottom = y_px + height_px / 2
+
+    return v2(x_left, y_top), v2(x_right, y_bottom)
+
+end
+
+function coords_to_screenwriter(coord1, coord2)
+
+    x_left = math.min(coord1.x, coord2.x)
+    x_right = math.max(coord1.x, coord2.x)
+    y_top = math.min(coord1.y, coord2.y)
+    y_bottom = math.max(coord1.y, coord2.y)
+
+    width_px = x_right - x_left
+    height_px = y_bottom - y_top
+
+    x_px = x_left + width_px / 2
+    y_px = y_top + height_px / 2
+
+    x = (x_px - simulated_resolution.x / 2) / simulated_resolution.x * 2
+    y = (y_px - simulated_resolution.y / 2) / simulated_resolution.y * 2
+    width = (width_px - simulated_resolution.x / 2) / simulated_resolution.x * 2
+    height = (height_px - simulated_resolution.y / 2) / simulated_resolution.y * 2
+
+    return v2(x, y), v2(width, height)
+
+end
+
+--[[
+
+simulated_resolution = v2(1920, 1080)
+
+# screenwriter to coords
+
+local pos, scale, x, y, width, height, x_px, y_px, width_px, height_px, x_left, x_right, y_top, y_bottom
+
+#x = .5
+#y = 0
+#width = 1
+#height = 1
+
+pos = v2(.5, 0)
+scale = v2(1, 1)
+
+x = pos.x
+y = pos.y
+width = scale.x
+height = scale.y
+
+x_px = x * simulated_resolution.x / 2 + simulated_resolution.x / 2
+y_px = y * simulated_resolution.y / 2 + simulated_resolution.y / 2
+width_px = width * simulated_resolution.x / 2 + simulated_resolution.x / 2
+height_px = height * simulated_resolution.y / 2 + simulated_resolution.y / 2
+
+x_left = x_px - width_px / 2
+x_right = x_px + width_px / 2
+y_top = y_px - height_px / 2
+y_bottom = y_px + height_px / 2
+
+print(x_left) -- 960
+print(x_right) -- 1920
+print(y_top) -- 270
+print(y_bottom) -- 810
+
+# coords to screenwriter
+
+local coord1, coord2, x_left, x_right, y_top, y_bottom, width_px, height_px, x_px, y_px, x, y, width, height
+
+#x_left = 960
+#x_right = 1920
+#y_top = 270
+#y_bottom = 810
+
+coord1 = v2(1920, 270)
+coord2 = v2(960, 810)
+
+x_left = math.min(coord1.x, coord2.x)
+x_right = math.max(coord1.x, coord2.x)
+y_top = math.min(coord1.y, coord2.y)
+y_bottom = math.max(coord1.y, coord2.y)
+
+width_px = x_right - x_left
+height_px = y_bottom - y_top
+
+x_px = x_left + width_px / 2
+y_px = y_top + height_px / 2
+
+x = (x_px - simulated_resolution.x / 2) / simulated_resolution.x * 2
+y = (y_px - simulated_resolution.y / 2) / simulated_resolution.y * 2
+width = (width_px - simulated_resolution.x / 2) / simulated_resolution.x * 2
+height = (height_px - simulated_resolution.y / 2) / simulated_resolution.y * 2
+
+print(x)
+print(y)
+print(width)
+print(height)
+
+]]