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Use a hex map instead of squares
CIV4 should use a map based on hexes instead of squares.
At present, the square-based map in CIV3 has a few anomalies:
* City radius is an approximation of a circle
* Bombard range is a square
* A unit in a city that moves 2 squares out of the city is still within the city radius - except if it moves diagonally twice.
A hexagonal map has a few advantages over a square map:
* If using 2-d graphics, less unit animations are required
* The range of units is more like a circle
* A city radius can match the range of the units travelling to and from the city in all directions
How would the game look if it was hex-based? Not very different:
* Bombard would still be X tiles in each direction
* The city radius would encompass 19 tiles instead of 21
At present, the square-based map in CIV3 has a few anomalies:
* City radius is an approximation of a circle
* Bombard range is a square
* A unit in a city that moves 2 squares out of the city is still within the city radius - except if it moves diagonally twice.
A hexagonal map has a few advantages over a square map:
* If using 2-d graphics, less unit animations are required
* The range of units is more like a circle
* A city radius can match the range of the units travelling to and from the city in all directions
How would the game look if it was hex-based? Not very different:
* Bombard would still be X tiles in each direction
* The city radius would encompass 19 tiles instead of 21
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