41 lines
1.2 KiB
Odin
41 lines
1.2 KiB
Odin
package space_invaders
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import glm "core:math/linalg/glsl"
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GLOBAL_SPRITE_SCALE :: 2
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SPRITE_CELL :: 16
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ALIEN_ROWS :: 5
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ALIENS_PER_ROW :: 11
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ALIENS :: ALIEN_ROWS * ALIENS_PER_ROW
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ALIEN_SIDE_STEP :: 20 * GLOBAL_SPRITE_SCALE
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ALIEN_RECT :: glm.vec2{SPRITE_CELL * GLOBAL_SPRITE_SCALE, SPRITE_CELL * GLOBAL_SPRITE_SCALE}
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MAX_BULLETS :: 100
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BULLET_SPEED :: 240
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BULLET_RECT :: glm.vec2{SPRITE_CELL * GLOBAL_SPRITE_SCALE, SPRITE_CELL * GLOBAL_SPRITE_SCALE}
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MAX_PLAYER_HEALTH :: 3
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PLAYER_SPEED :: 120
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PLAYER_RECT :: glm.vec2{SPRITE_CELL * GLOBAL_SPRITE_SCALE, SPRITE_CELL * GLOBAL_SPRITE_SCALE}
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// texture offset for ship
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SHIP_TO :: glm.vec2{0, 112}
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BULLET_TO := [2]glm.vec2{{0, 80}, {16, 80}}
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BULLET_FRAME_ANIM := 0
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// texture atlas offset for aliens
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ALIENS_TO := [AlienKind]glm.vec2 {
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.ORANGE = {0, 128 - (SPRITE_CELL * 2)},
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.GREEN = {SPRITE_CELL * 1, 128 - (SPRITE_CELL * 2)},
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.YELLOW = {SPRITE_CELL * 2, 128 - (SPRITE_CELL * 2)},
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.RED = {SPRITE_CELL * 3, 128 - (SPRITE_CELL * 2)},
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}
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ALIEN_DEATH_FRAMES :: 4
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ALIEN_DEATH_ANIMATION_TO := [ALIEN_DEATH_FRAMES]glm.vec2 {
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{0, 128 - (SPRITE_CELL * 4)},
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{SPRITE_CELL * 1, 128 - (SPRITE_CELL * 4)},
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{SPRITE_CELL * 2, 128 - (SPRITE_CELL * 4)},
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{SPRITE_CELL * 3, 128 - (SPRITE_CELL * 4)},
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}
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