shop.cpp

After decades of war one company, who had gained powerful supplying both sides with weaponary, steps

	shopItems[8].price = 250;
	strcpy(shopItems[8].name, "Plasma compressor");
	strcpy(shopItems[8].description, "Increases plasma ammo capacity");
	shopItems[8].image = 17;

	shopItems[9].price = 250;
	strcpy(shopItems[9].name, "Rocket Pod");
	strcpy(shopItems[9].description, "Allows for an additional 5 rockets to be carried");
	shopItems[9].image = 18;

	/* ---------- Weaponary --------------- */

	shopItems[10].price = 2000;
	strcpy(shopItems[10].name, "Dual Rocket Launcher");
	strcpy(shopItems[10].description, "Allows for two rockets to be fired at once");
	shopItems[10].image = 19;

	shopItems[11].price = 2500;
	strcpy(shopItems[11].name, "Micro Rocket Launcher");
	strcpy(shopItems[11].description, "Launches several less powerful rockets at once");
	shopItems[11].image = 20;

	shopItems[12].price = 5000;
	strcpy(shopItems[12].name, "Laser Cannon");
	strcpy(shopItems[12].description, "Laser Cannon");
	shopItems[12].image = 21;

	shopItems[13].price = 7500;
	strcpy(shopItems[13].name, "Homing Missile Launcher");
	strcpy(shopItems[13].description, "Fires homing missile");
	shopItems[13].image = 22;

	shopItems[14].price = 10000;
	strcpy(shopItems[14].name, "Charge Cannon");
	strcpy(shopItems[14].description, "A charge up cannon");
	shopItems[14].image = 23;

	shopItems[15].price = 20000;
	strcpy(shopItems[15].name, "Dual Homing Missile Launcher");
	strcpy(shopItems[15].description, "Fires two homing missiles");
	shopItems[15].image = 24;

	shopItems[16].price = 25000;
	strcpy(shopItems[16].name, "Homing Micro Missile Launcher");
	strcpy(shopItems[16].description, "Fires several small homing missiles");
	shopItems[16].image = 25;

	for (int i = 0 ; i < 3 ; i++)
	{
		shopItems[i].x = 100 + (i * 50);
		shopItems[i].y = 200;
	}

	shopItems[3].x = 350;
	shopItems[3].y = 200;

	shopItems[4].x = 400;
	shopItems[4].y = 200;

	for (int i = 0 ; i < 3 ; i++)
	{
		shopItems[i + 5].x = 100 + (i * 50);
		shopItems[i + 5].y = 260;
	}

	for (int i = 0 ; i < 2 ; i++)
	{
		shopItems[i + 8].x = 450 + (i * 50);
		shopItems[i + 8].y = 200;
	}

	for (int i = 0 ; i < 8 ; i++)
	{
		shopItems[i + 10].x = 350 + (i * 50);
		shopItems[i + 10].y = 260;
	}

 	shopSelectedItem = -1;

	player.image[0] = graphics.shape[0];
	player.x = 380;
	player.y = 95;

	saveShop();

	drawShop();
}

#endif

void buy(int i)
{
	if ((currentGame.cash < shopItems[i].price) && (!engine.cheatCash))
	{
		shopSelectedItem = -2;
		drawShop();
		return;
	}

	switch(i)
	{
		case 0:
			if (currentGame.maxPlasmaOutput == 5)
				{shopSelectedItem = -3; return;}
			currentGame.maxPlasmaOutput++;
			break;
		case 1:
			if (currentGame.maxPlasmaDamage == 5)
				{shopSelectedItem = -3; return;}
			currentGame.maxPlasmaDamage++;
			break;
		case 2:
			if (currentGame.maxPlasmaRate == 7)
				{shopSelectedItem = -3; return;}
			currentGame.maxPlasmaRate -= 2;
			break;
		case 3:
			if (player.ammo[0] == currentGame.maxPlasmaAmmo)
				{shopSelectedItem = -4; return;}
			Math::limitChar(&(player.ammo[0] += 10), 0, currentGame.maxPlasmaAmmo);
			break;
		case 4:
			if ((player.weaponType[1] == W_CHARGER) || (player.weaponType[1] == W_LASER))
				{shopSelectedItem = -7; return;}
			if (player.ammo[1] == currentGame.maxRocketAmmo)
				{shopSelectedItem = -4; return;}
			if ((player.weaponType[1] == W_HOMING_MISSILE) && (player.ammo[1] == 20))
				{shopSelectedItem = -9; return;}
			if ((player.weaponType[1] == W_DOUBLE_HOMING_MISSILES) && (player.ammo[1] == 10))
				{shopSelectedItem = -9; return;}
			if ((player.weaponType[1] == W_MICRO_HOMING_MISSILES) && (player.ammo[1] == 10))
				{shopSelectedItem = -9; return;}
			player.ammo[1]++;
			break;
		case 5:
			if (weapon[0].ammo[0] == 3)
				{shopSelectedItem = -3; return;}
			weapon[0].ammo[0]++;
			if (currentGame.maxPlasmaOutput < weapon[0].ammo[0])
				currentGame.maxPlasmaOutput = weapon[0].ammo[0];
			break;
		case 6:
			if (weapon[0].damage == 3)
				{shopSelectedItem = -3; return;}
			weapon[0].damage++;
			if (currentGame.maxPlasmaDamage < weapon[0].damage)
				currentGame.maxPlasmaDamage = weapon[0].damage;
			break;
		case 7:
			if (weapon[0].reload[0] == 11)
				{shopSelectedItem = -3; return;}
			weapon[0].reload[0] -= 2;
			if (currentGame.maxPlasmaRate > weapon[0].reload[0])
				currentGame.maxPlasmaRate = weapon[0].reload[0];
			break;
		case 8:
			if (currentGame.maxPlasmaAmmo == 250)
				{shopSelectedItem = -3; return;}
			Math::limitChar(&(currentGame.maxPlasmaAmmo += 10), 0, 250);
			break;
		case 9:
			if ((player.weaponType[1] == W_CHARGER) || (player.weaponType[1] == W_LASER))
				{shopSelectedItem = -7; return;}
			if (currentGame.maxRocketAmmo == 50)
				{shopSelectedItem = -3; return;}
			currentGame.maxRocketAmmo += 5;
			break;
		case 10:
			if (player.weaponType[1] == W_DOUBLE_ROCKETS)
				{shopSelectedItem = -8; return;}
			player.weaponType[1] = W_DOUBLE_ROCKETS;
			shopSelectedItem = -1;
			break;
		case 11:
			if (player.weaponType[1] == W_MICRO_ROCKETS)
				{shopSelectedItem = -8; return;}
			player.weaponType[1] = W_MICRO_ROCKETS;
			shopSelectedItem = -1;
			break;
		case 12:
			if (player.weaponType[1] == W_LASER)
				{shopSelectedItem = -8; return;}
			player.weaponType[1] = W_LASER;
			player.ammo[1] = 0;
			shopSelectedItem = -1;
			break;
		case 13:
			if (player.weaponType[1] == W_HOMING_MISSILE)
				{shopSelectedItem = -8; return;}
			player.weaponType[1] = W_HOMING_MISSILE;
			Math::limitChar(&player.ammo[1], 0, 20);
			shopSelectedItem = -1;
			break;
		case 14:
			if (player.weaponType[1] == W_CHARGER)
				{shopSelectedItem = -8; return;}
			player.weaponType[1] = W_CHARGER;
			player.ammo[1] = 0;
			shopSelectedItem = -1;
			break;
		case 15:
			if (player.weaponType[1] == W_DOUBLE_HOMING_MISSILES)
				{shopSelectedItem = -8; return;}
			player.weaponType[1] = W_DOUBLE_HOMING_MISSILES;
			Math::limitChar(&player.ammo[1], 0, 10);
			shopSelectedItem = -1;
			break;
		case 16:
			if (player.weaponType[1] == W_MICRO_HOMING_MISSILES)
				{shopSelectedItem = -8; return;}
			player.weaponType[1] = W_MICRO_HOMING_MISSILES;
			Math::limitChar(&player.ammo[1], 0, 10);
			shopSelectedItem = -1;
			break;
	}

	if (!engine.cheatCash)
		currentGame.cash -= shopItems[i].price;
}

void sell(int i)
{
	switch (i)
	{
		case 0:
			if (currentGame.maxPlasmaOutput == 2)
				{shopSelectedItem = -5; return;}
			currentGame.maxPlasmaOutput--;
			break;
		case 1:
			if (currentGame.maxPlasmaDamage == 2)
				{shopSelectedItem = -5; return;}
			currentGame.maxPlasmaDamage--;
			break;
		case 2:
			if (currentGame.maxPlasmaRate == 13)
				{shopSelectedItem = -5; return;}
			currentGame.maxPlasmaRate += 2;
			break;
		case 3:
			if (player.ammo[0] == 0)
				{shopSelectedItem = -6; return;}
			if (player.ammo[0] > 9)
				Math::limitChar(&(player.ammo[0] -= 10), 0, currentGame.maxPlasmaAmmo);
			else
				player.ammo[0] = 0;
			break;
		case 4:
			if (player.ammo[1] == 0)
				{shopSelectedItem = -6; return;}
			player.ammo[1]--;
			break;
		case 5:
			if (weapon[0].ammo[0] == 1)
				{shopSelectedItem = -5; return;}
			weapon[0].ammo[0]--;
			break;
		case 6:
			if (weapon[0].damage == 1)
				{shopSelectedItem = -5; return;}
			weapon[0].damage--;
			break;
		case 7:
			if (weapon[0].reload[0] == 15)
				{shopSelectedItem = -5; return;}
			weapon[0].reload[0] += 2;
			break;
		case 8:
			if (currentGame.maxPlasmaAmmo == 100)
				{shopSelectedItem = -1; return;}
			currentGame.maxPlasmaAmmo -= 10;
			Math::limitChar(&player.ammo[0], 0, currentGame.maxPlasmaAmmo);
			break;
		case 9:
			if (currentGame.maxRocketAmmo == 0)
				{shopSelectedItem = -1; return;}
			currentGame.maxRocketAmmo -= 5;
			Math::limitChar(&player.ammo[1], 0, currentGame.maxRocketAmmo);
			break;
		case 10:
			if (player.weaponType[1] != W_DOUBLE_ROCKETS)
				{shopSelectedItem = -1; return;}
			player.weaponType[1] = W_NONE;
			shopSelectedItem = -1;
			break;
		case 11:
			if (player.weaponType[1] != W_MICRO_ROCKETS)
				{shopSelectedItem = -1; return;}
			player.weaponType[1] = W_NONE;
			shopSelectedItem = -1;
			break;
		case 12:
			if (player.weaponType[1] != W_LASER)
				{shopSelectedItem = -1; return;}
			player.weaponType[1] = W_NONE;
			player.ammo[1] = 0;
			shopSelectedItem = -1;
			break;
		case 13:
			if (player.weaponType[1] != W_HOMING_MISSILE)
				{shopSelectedItem = -1; return;}
			player.weaponType[1] = W_NONE;
			shopSelectedItem = -1;
			break;
		case 14:
			if (player.weaponType[1] != W_CHARGER)
				{shopSelectedItem = -1; return;}
			player.weaponType[1] = W_NONE;
			player.ammo[1] = 0;
			shopSelectedItem = -1;
			break;
		case 15:
			if (player.weaponType[1] != W_DOUBLE_HOMING_MISSILES)
				{shopSelectedItem = -1; return;}
			player.weaponType[1] = W_NONE;
			shopSelectedItem = -1;
			break;
		case 16:
			if (player.weaponType[1] != W_MICRO_HOMING_MISSILES)
				{shopSelectedItem = -1; return;}
			player.weaponType[1] = W_NONE;
			shopSelectedItem = -1;
			break;
	}

	currentGame.cash += (shopItems[i].price / 2);
}

void showShop()
{
 	graphics.blit(graphics.shopSurface[0], 20, 395);
	graphics.blit(graphics.shopSurface[1], 275, 395);
	graphics.blit(graphics.shopSurface[2], 530, 395);
	graphics.blit(graphics.shopSurface[3], 100, 180);
	graphics.blit(graphics.shopSurface[4], 100, 50);
	graphics.blit(graphics.shopSurface[5], 100, 320);

	if (shopSelectedItem > -1)
	{
		graphics.blit(graphics.shape[27], 60, 350);
		graphics.blit(graphics.shape[28], 710, 350);
	}

	graphics.blit(graphics.shape[29], (int)player.x, (int)player.y);

	signed char icons = MAX_SHOPITEMS;

	if (currentGame.system == 0)
		icons = 11;
	else if (currentGame.system == 1)
		icons = 13;
	else if (currentGame.system == 2)
		icons = 15;

	if ((engine.keyState[SDLK_LCTRL]) || (engine.keyState[SDLK_RCTRL]))
	{
		for (int i = 0 ; i < icons ; i++)
		{
			if (Collision::collision(engine.cursor_x + 13, engine.cursor_y + 13, 6, 6, shopItems[i].x, shopItems[i].y, 32, 25))
			{
				shopSelectedItem = i;
				engine.keyState[SDLK_LCTRL] = engine.keyState[SDLK_RCTRL] = 0;
				drawShop();
			}
		}

		if (shopSelectedItem > -1)
		{
			if (Collision::collision(engine.cursor_x + 13, engine.cursor_y + 13, 6, 6, 60, 350, 24, 16))
			{
				buy(shopSelectedItem);
				engine.keyState[SDLK_LCTRL] = engine.keyState[SDLK_RCTRL] = 0;
				drawShop();
			}

			if (Collision::collision(engine.cursor_x + 13, engine.cursor_y + 13, 6, 6, 700, 350, 24, 16))
			{
				sell(shopSelectedItem);
				engine.keyState[SDLK_LCTRL] = engine.keyState[SDLK_RCTRL] = 0;
				drawShop();
			}
		}
	}
}