Map: Add hero_level and hero_stat modes to spawn_level properties

For map enemies, this doesn't introduce anything new, since the "source"
was already the hero. But now powers cast by enemies can use the hero
level/stats instead of the caster's.

Author: dorkster

docs/attribute-reference.html

@@ -1286,7 +1286,7 @@ <h4>Map</h4>
 
 <p><strong>enemygroup.invincible_requires_not_status</strong> | <code>list(string)</code> | Enemies in this group are invincible to hero attacks when these statuses are not set.</p>
 
-<p><strong>enemygroup.spawn_level</strong> | <code>["default", "fixed", "source_level", "source_stat"], float, predefined_string : Mode, Multiplier, Primary stat</code> | The level of spawned creatures. The need for the last two parameters depends on the mode being used. The "default" mode will just use the entity's normal level and doesn't require any additional parameters. The "fixed" mode sets the multiplier as the enemy level. The "source_level" mode multiplies with the player's level. The "source_stat" mode multiplies by one of the player's primary stats. The stat is defined with the last parameter, which is simply the ID of the primary stat that should be used for scaling.</p>
+<p><strong>enemygroup.spawn_level</strong> | <code>["default", "fixed", "source_level", "source_stat", "hero_level", "hero_stat"], float, predefined_string : Mode, Multiplier, Primary stat</code> | The level of spawned creatures. The need for the last two parameters depends on the mode being used. The "default" mode will just use the entity's normal level and doesn't require any additional parameters. The "fixed" mode sets the multiplier as the enemy level. The level modes multiply with the target's level. The stat modes multiply by one of the target's primary stats. The stat is defined with the last parameter, which is simply the ID of the primary stat that should be used for scaling. Because the map has no level/stats of its own, the source modes use the hero's level/stats.</p>
 
 <p><strong>npc.type</strong> | <code>string</code> | (IGNORED BY ENGINE) The "type" field, as used by Tiled and other mapping tools.</p>
 
@@ -2146,7 +2146,7 @@ <h4>PowerManager: Powers</h4>
 
 <p><strong>power.spawn_limit</strong> | <code>["unlimited", "fixed", "stat"], int, float, predefined_string : Mode, Entity Level, Ratio, Primary stat</code> | The maximum number of creatures that can be spawned and alive from this power. The need for the last three parameters depends on the mode being used. The "unlimited" mode requires no parameters and will remove any spawn limit requirements. The "fixed" mode takes one parameter as the spawn limit. The "stat" mode also requires the ratio and primary stat ID as parameters. The ratio adjusts the scaling of the spawn limit. For example, spawn_limit=stat,1,2,physical will set the spawn limit to 1/2 the summoner's Physical stat.</p>
 
-<p><strong>power.spawn_level</strong> | <code>["default", "fixed", "source_level", "source_stat"], float, predefined_string : Mode, Multiplier, Primary stat</code> | The level of spawned creatures. The need for the last two parameters depends on the mode being used. The "default" mode will just use the entity's normal level and doesn't require any additional parameters. The "fixed" mode sets the multiplier as the enemy level. The "source_level" mode multiplies with the summoner's level. The "source_stat" mode multiplies by one of the summoner's primary stats. The stat is defined with the last parameter, which is simply the ID of the primary stat that should be used for scaling.</p>
+<p><strong>power.spawn_level</strong> | <code>["default", "fixed", "source_level", "source_stat", "hero_level", "hero_stat"], float, predefined_string : Mode, Multiplier, Primary stat</code> | The level of spawned creatures. The need for the last two parameters depends on the mode being used. The "default" mode will just use the entity's normal level and doesn't require any additional parameters. The "fixed" mode sets the multiplier as the enemy level. The level modes multiply with the target's level. The stat modes multiply by one of the target's primary stats. The stat is defined with the last parameter, which is simply the ID of the primary stat that should be used for scaling.</p>
 
 <p><strong>power.target_party</strong> | <code>bool</code> | Hazard will only affect party members.</p>
 

src/Map.cpp

@@ -19,6 +19,7 @@ FLARE.  If not, see http://www.gnu.org/licenses/
 */
 
 
+#include "Avatar.h"
 #include "CampaignManager.h"
 #include "EffectManager.h"
 #include "EngineSettings.h"
@@ -45,6 +46,14 @@ void SpawnLevel::parse(FileParser &infile) {
 	else if (next == "fixed") mode = MODE_FIXED;
 	else if (next == "source_stat") mode = MODE_STAT;
 	else if (next == "source_level") mode = MODE_LEVEL;
+	else if (next == "hero_stat") {
+		mode = MODE_STAT;
+		ratio_source = RATIO_SOURCE_HERO;
+	}
+	else if (next == "hero_level") {
+		mode = MODE_LEVEL;
+		ratio_source = RATIO_SOURCE_HERO;
+	}
 	else if (next == "stat") {
 		mode = MODE_STAT;
 		is_legacy = true;
@@ -94,6 +103,10 @@ void SpawnLevel::applyToStatBlock(StatBlock *src_stats, StatBlock *ratio_stats)
 	if (!src_stats)
 		return;
 
+	if (pc && ratio_source == RATIO_SOURCE_HERO) {
+		ratio_stats = &pc->stats;
+	}
+
 	if (mode == MODE_FIXED) {
 		src_stats->level = static_cast<int>(ratio);
 	}
@@ -563,7 +576,7 @@ void Map::loadEnemyGroup(FileParser &infile, Map_Group *group) {
 		}
 	}
 	else if (infile.key == "spawn_level") {
-		// @ATTR enemygroup.spawn_level|["default", "fixed", "source_level", "source_stat"], float, predefined_string : Mode, Multiplier, Primary stat|The level of spawned creatures. The need for the last two parameters depends on the mode being used. The "default" mode will just use the entity's normal level and doesn't require any additional parameters. The "fixed" mode sets the multiplier as the enemy level. The "source_level" mode multiplies with the player's level. The "source_stat" mode multiplies by one of the player's primary stats. The stat is defined with the last parameter, which is simply the ID of the primary stat that should be used for scaling.
+		// @ATTR enemygroup.spawn_level|["default", "fixed", "source_level", "source_stat", "hero_level", "hero_stat"], float, predefined_string : Mode, Multiplier, Primary stat|The level of spawned creatures. The need for the last two parameters depends on the mode being used. The "default" mode will just use the entity's normal level and doesn't require any additional parameters. The "fixed" mode sets the multiplier as the enemy level. The level modes multiply with the target's level. The stat modes multiply by one of the target's primary stats. The stat is defined with the last parameter, which is simply the ID of the primary stat that should be used for scaling. Because the map has no level/stats of its own, the source modes use the hero's level/stats.
 		group->spawn_level.parse(infile);
 	}
 	else {

src/Map.h

@@ -39,13 +39,20 @@ class SpawnLevel {
 		MODE_LEVEL = 3
 	};
 
+	enum {
+		RATIO_SOURCE_DEFAULT = 0,
+		RATIO_SOURCE_HERO = 1,
+	};
+
 	uint8_t mode;
+	uint8_t ratio_source;
 	float ratio;
 	size_t stat;
 	bool is_legacy;
 
 	SpawnLevel()
 		: mode(MODE_DEFAULT)
+		, ratio_source(0)
 		, ratio(0)
 		, stat(0)
 		, is_legacy(false)

src/PowerManager.cpp

@@ -1022,7 +1022,7 @@ void PowerManager::loadPowers() {
 			}
 		}
 		else if (infile.key == "spawn_level") {
-			// @ATTR power.spawn_level|["default", "fixed", "source_level", "source_stat"], float, predefined_string : Mode, Multiplier, Primary stat|The level of spawned creatures. The need for the last two parameters depends on the mode being used. The "default" mode will just use the entity's normal level and doesn't require any additional parameters. The "fixed" mode sets the multiplier as the enemy level. The "source_level" mode multiplies with the summoner's level. The "source_stat" mode multiplies by one of the summoner's primary stats. The stat is defined with the last parameter, which is simply the ID of the primary stat that should be used for scaling.
+			// @ATTR power.spawn_level|["default", "fixed", "source_level", "source_stat", "hero_level", "hero_stat"], float, predefined_string : Mode, Multiplier, Primary stat|The level of spawned creatures. The need for the last two parameters depends on the mode being used. The "default" mode will just use the entity's normal level and doesn't require any additional parameters. The "fixed" mode sets the multiplier as the enemy level. The level modes multiply with the target's level. The stat modes multiply by one of the target's primary stats. The stat is defined with the last parameter, which is simply the ID of the primary stat that should be used for scaling.
 			power->spawn_level.parse(infile);
 		}
 		else if (infile.key == "target_party") {

src/Version.cpp

@@ -30,7 +30,7 @@ FLARE.  If not, see http://www.gnu.org/licenses/
 
 #include <SDL.h>
 
-Version VersionInfo::ENGINE(1, 14, 234);
+Version VersionInfo::ENGINE(1, 14, 235);
 Version VersionInfo::MIN(0, 0, 0);
 Version VersionInfo::MAX(USHRT_MAX, USHRT_MAX, USHRT_MAX);