dos-vga-arena-shooter-game/const.c

#include "system/vga.h"
#include "const.h"

int difficultyBands[MAX_DIFFICULTY];
int hitPointRanges[MAX_DIFFICULTY][4];
int damageUpgradeCosts[3] = { 5, 11, 18 };
int healthUpgradeCosts[3] = { 4, 9, 15 };
int healthGainUpgradeCosts[3] = { 6, 13, 21 };

struct SpriteBounds bounds;

// TODO: centralize these outside of game.c
struct CompiledSpriteRender rabbit,
  mouse,
  bullet,
  enemy,
  enemyBullet,
  shotgun,
  beam;

void buildDifficultyBands() {
  int i;
  float current = 0;
  float increaseBy = BASE_KILLS;

  for (i = 0; i < MAX_DIFFICULTY; ++i) {
    current += increaseBy;

    difficultyBands[i] = (int)current;

    increaseBy *= KILLS_NEEDED_FOR_NEXT_LEVEL_MULTIPLIER;
  }
}

void buildHitPointRages() {
  int currentRange[4] = { 1, 1, 1, 1 };
  int i, j, countOfCurrent = 0, tmp;

  for (i = 0; i < MAX_DIFFICULTY; ++i) {
    for (j = 0; j < 4; ++j) {
      hitPointRanges[i][j] = currentRange[j];
    }

    countOfCurrent++;
    if (countOfCurrent == HIT_POINT_DIFFICULTY_INCREASE_DELAY) {
      countOfCurrent = 0;

      currentRange[3]++;

      for (j = 3; j > 0; --j) {
        if (currentRange[j] > currentRange[j - 1]) {
          tmp = currentRange[j - 1];
          currentRange[j - 1] = currentRange[j];
          currentRange[j] = tmp;
        }
      }
    }
  }
};