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Add projectile table
This commit is contained in:
Miloslav Číž
parent
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commit
b4ceb1603b
63
constants.h
63
constants.h
@ -66,11 +66,6 @@
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*/
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#define SFG_AI_RANDOM_CHANGE_PROBABILITY 40
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/**
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Speed of rocket projectile, in squares per second.
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*/
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#define SFG_FIREBALL_SPEED 15
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/**
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Distance at which level elements (sprites) collide, in RCL_Unit (1024 per
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square).
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@ -115,13 +110,6 @@
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#define SFG_MAX_DOORS 32
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#define SFG_PROJECTILE_EXPLOSION 0
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#define SFG_PROJECTILE_FIREBALL 1
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#define SFG_PROJECTILE_PLASMA 2
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#define SFG_PROJECTILE_DUST 3
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#define SFG_PROJECTILE_BULLET 4
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#define SFG_PROJECTILE_NONE 255
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// ----------------------------
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// derived constants
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@ -167,13 +155,6 @@
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#define SFG_PLAYER_MOVE_UNITS_PER_FRAME 1
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#endif
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#define SFG_FIREBALL_MOVE_UNITS_PER_FRAME \
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((SFG_FIREBALL_SPEED * RCL_UNITS_PER_SQUARE) / SFG_FPS)
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#if SFG_FIREBALL_MOVE_UNITS_PER_FRAME == 0
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#define SFG_FIREBALL_MOVE_UNITS_PER_FRAME 1
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#endif
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#define SFG_GRAVITY_SPEED_INCREASE_PER_FRAME \
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((SFG_GRAVITY_ACCELERATION * RCL_UNITS_PER_SQUARE) / (SFG_FPS * SFG_FPS))
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@ -260,9 +241,6 @@
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#define SFG_AI_UPDATE_FRAME_INTERVAL 1
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#endif
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#define SFG_EXPLOSION_DURATION_DOUBLE_FRAMES \
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(SFG_EXPLOSION_DURATION / SFG_MS_PER_FRAME)
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#if SFG_EXPLOSION_DURATION_DOUBLE_FRAMES == 0
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#define SFG_EXPLOSION_DURATION_FRAMES 1
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#endif
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@ -290,7 +268,7 @@
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(SFG_FONT_CHARACTER_SIZE * SFG_FONT_SIZE_MEDIUM + SFG_HUD_MARGIN * 2 + 1)
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// ----------------------------
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// weapons
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// weapons and projectiles
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#define SFG_WEAPON_KNIFE 0
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#define SFG_WEAPON_SHOTGUN 1
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@ -316,7 +294,7 @@
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#define SFG_WEAPON_FIRE_TYPE_PLASMA 4
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/**
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Table of Weapon attributes, each as a byte in format :
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Table of weapon attributes, each as a byte in format:
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cccccfff
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@ -333,4 +311,41 @@ SFG_PROGRAM_MEMORY uint8_t SFG_weaponAttributeTable[SFG_WEAPONS_TOTAL] =
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/* plasma */ SFG_WEAPON_ATTRIBUTE(SFG_WEAPON_FIRE_TYPE_PLASMA,350)
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};
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#define SFG_PROJECTILE_EXPLOSION 0
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#define SFG_PROJECTILE_FIREBALL 1
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#define SFG_PROJECTILE_PLASMA 2
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#define SFG_PROJECTILE_DUST 3
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#define SFG_PROJECTILE_BULLET 4
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#define SFG_PROJECTILE_NONE 255
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#define SFG_PROJECTILES_TOTAL 5
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#define SFG_PROJECTILE_ATTRIBUTE(speedSquaresPerSec,timeToLiveMs) \
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((uint8_t) \
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((((speedSquaresPerSec / 4 == 0) && (speedSquaresPerSec != 0)) ? 1 : speedSquaresPerSec / 4) | \
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((timeToLiveMs / (8 * SFG_MS_PER_FRAME)) << 3)))
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#define SFG_GET_PROJECTILE_SPEED_UPS(projectileNumber) \
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(((SFG_projectileAttributeTable[projectileNumber] & 0x07) * 4 * RCL_UNITS_PER_SQUARE) / SFG_FPS)
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#define SFG_GET_PROJECTILE_FRAMES_TO_LIVE(projectileNumber) \
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((SFG_projectileAttributeTable[projectileNumber] >> 3) * 8)
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/**
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Table of projectile attributes, each as a byte in format:
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lllllsss
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fff: half speed in game squares per second
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lllll: eigth of frames to live
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*/
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SFG_PROGRAM_MEMORY uint8_t SFG_projectileAttributeTable[SFG_PROJECTILES_TOTAL] =
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{
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/* explosion */ SFG_PROJECTILE_ATTRIBUTE(0,300),
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/* fireball */ SFG_PROJECTILE_ATTRIBUTE(18,1000),
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/* plasma */ SFG_PROJECTILE_ATTRIBUTE(20,500),
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/* dust */ SFG_PROJECTILE_ATTRIBUTE(0,450),
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/* bullet */ SFG_PROJECTILE_ATTRIBUTE(28,1000)
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};
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#endif // guard
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22
main.c
22
main.c
@ -1037,7 +1037,8 @@ uint8_t SFG_launchProjectile(
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SFG_ProjectileRecord p;
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p.type = type;
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p.doubleFramesToLive = 255;
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p.doubleFramesToLive =
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RCL_nonZero(SFG_GET_PROJECTILE_FRAMES_TO_LIVE(type) / 2);
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p.position[0] =
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shootFrom.x + (direction.x * offsetDistance) / RCL_UNITS_PER_SQUARE;
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@ -1048,10 +1049,10 @@ uint8_t SFG_launchProjectile(
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p.position[2] = shootFromHeight;
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p.direction[0] =
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(direction.x * SFG_FIREBALL_MOVE_UNITS_PER_FRAME) / RCL_UNITS_PER_SQUARE;
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(direction.x * SFG_GET_PROJECTILE_SPEED_UPS(type)) / RCL_UNITS_PER_SQUARE;
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p.direction[1] =
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(direction.y * SFG_FIREBALL_MOVE_UNITS_PER_FRAME) / RCL_UNITS_PER_SQUARE;
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(direction.y * SFG_GET_PROJECTILE_SPEED_UPS(type)) / RCL_UNITS_PER_SQUARE;
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p.direction[2] = verticalSpeed;
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@ -1199,7 +1200,8 @@ void SFG_createExplosion(RCL_Unit x, RCL_Unit y, RCL_Unit z)
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explosion.direction[1] = 0;
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explosion.direction[2] = 0;
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explosion.doubleFramesToLive = SFG_EXPLOSION_DURATION_DOUBLE_FRAMES;
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explosion.doubleFramesToLive = RCL_nonZero(
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SFG_GET_PROJECTILE_FRAMES_TO_LIVE(SFG_PROJECTILE_EXPLOSION) / 2);
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SFG_createProjectile(explosion);
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@ -1237,7 +1239,8 @@ void SFG_createDust(RCL_Unit x, RCL_Unit y, RCL_Unit z)
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dust.direction[1] = 0;
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dust.direction[2] = 0;
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dust.doubleFramesToLive = SFG_EXPLOSION_DURATION_DOUBLE_FRAMES;
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dust.doubleFramesToLive =
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RCL_nonZero(SFG_GET_PROJECTILE_FRAMES_TO_LIVE(SFG_PROJECTILE_DUST) / 2);
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SFG_createProjectile(dust);
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}
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@ -1545,7 +1548,7 @@ void SFG_gameStep()
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SFG_player.camera.position,
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SFG_player.camera.height,
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RCL_angleToDirection(SFG_player.camera.direction),
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(SFG_player.camera.shear * SFG_FIREBALL_MOVE_UNITS_PER_FRAME) /
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(SFG_player.camera.shear * SFG_GET_PROJECTILE_SPEED_UPS(projectile)) /
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SFG_CAMERA_MAX_SHEAR_PIXELS,
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SFG_ELEMENT_COLLISION_DISTANCE + RCL_CAMERA_COLL_RADIUS
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);
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@ -2494,14 +2497,17 @@ void SFG_draw()
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if (proj->type == SFG_PROJECTILE_EXPLOSION ||
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proj->type == SFG_PROJECTILE_DUST)
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{
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int16_t doubleFramesToLive =
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RCL_nonZero(SFG_GET_PROJECTILE_FRAMES_TO_LIVE(proj->type) / 2);
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// grow the explosion sprite as an animation
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spriteSize =
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(
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SFG_GAME_RESOLUTION_Y *
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RCL_sinInt(
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((SFG_EXPLOSION_DURATION_DOUBLE_FRAMES -
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((doubleFramesToLive -
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proj->doubleFramesToLive) * RCL_UNITS_PER_SQUARE / 4)
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/ SFG_EXPLOSION_DURATION_DOUBLE_FRAMES)
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/ doubleFramesToLive)
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) / RCL_UNITS_PER_SQUARE;
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}
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@ -125,11 +125,6 @@
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*/
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#define SFG_CAMERA_MAX_SHEAR 1024
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/**
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Duration in ms of the explosion animation.
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*/
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#define SFG_EXPLOSION_DURATION 120
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/**
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Specifies how quick some sprite animations are, in frames per second.
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*/
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