diff options
Diffstat (limited to 'honey.bak/glm.lua')
| -rw-r--r-- | honey.bak/glm.lua | 361 |
1 files changed, 361 insertions, 0 deletions
diff --git a/honey.bak/glm.lua b/honey.bak/glm.lua new file mode 100644 index 0000000..af8dcb3 --- /dev/null +++ b/honey.bak/glm.lua @@ -0,0 +1,361 @@ +local glm = honey.glm
+
+local module = {}
+setmetatable(module, {__index=_G})
+setfenv(1, module)
+
+
+Vec3 = {}
+Mat4 = {}
+Quaternion = {}
+
+
+--===== Vec3 =====--
+
+
+function Vec3.new(_, values)
+ local self = {}
+ self.data = glm.vec3_create()
+ setmetatable(self, Vec3)
+ if values then
+ self[1] = values[1]
+ self[2] = values[2]
+ self[3] = values[3]
+ end
+ return self
+end
+setmetatable(Vec3, {__call=Vec3.new})
+
+
+function Vec3.__index(self, key)
+ if type(key) == 'number' then
+ return glm.vec3_get(self.data, key-1)
+ else
+ return Vec3[key]
+ end
+end
+
+
+function Vec3.__newindex(self, key, value)
+ glm.vec3_set(self.data, key-1, value)
+end
+
+
+function Vec3.__tostring(self)
+ return string.format("Vec3[%.4f, %.4f, %.4f]", self[1], self[2], self[3])
+end
+
+
+--===== arithmetic =====--
+
+local function swapIfNumber(self, other)
+ if type(self) == "number" and type(other) == "table" then
+ return other, self
+ else
+ return self, other
+ end
+end
+
+
+function Vec3.__add(self, other)
+ local self, other = swapIfNumber(self, other)
+
+ local dest = Vec3()
+ if type(other) == "number" then
+ glm.vec3_adds(self.data, other, dest.data)
+ elseif type(other) == "table" then
+ glm.vec3_add(self.data, other.data, dest.data)
+ else
+ error(string.format("cannot add %s to Vec3", type(other)))
+ end
+ return dest
+end
+
+
+function Vec3.__sub(self, other)
+ local dest = Vec3()
+ if type(other) == "number" then
+ glm.vec3_subs(self.data, other, dest.data)
+ elseif type(other) == "table" then
+ glm.vec3_sub(self.data, other.data, dest.data)
+ else
+ error(string.format("cannot subtract %s from Vec3", type(other)))
+ end
+ return dest
+end
+
+
+function Vec3.__mul(self, other)
+ local self, other = swapIfNumber(self, other)
+ local dest = Vec3()
+ if type(other) == "number" then
+ glm.vec3_scale(self.data, other, dest.data)
+ elseif type(other) == "table" then
+ glm.vec3_mul(self.data, other.data, dest.data)
+ else
+ error(string.format("cannot multiply %s and Vec3", type(other)))
+ end
+ return dest
+end
+
+
+function Vec3.__div(self, other)
+ local dest = Vec3()
+ if type(other) == "number" then
+ glm.vec3_divs(self.data, other, dest.data)
+ elseif type(other) == "table" then
+ glm.vec3_div(self.data, other.data, dest.data)
+ else
+ error(string.format("cannot divide Vec3 by %s", type(other)))
+ end
+ return dest
+end
+
+
+
+
+function Vec3.copyTo(self, dest)
+ glm.vec3_copy(self.data, dest.data)
+end
+
+
+function Vec3.zero(self)
+ glm.vec3_zero(self.data)
+end
+
+
+function Vec3.zero(self)
+ glm.vec3_zero(self.data)
+end
+function Vec3.one(self)
+ glm.vec3_one(self.data)
+end
+
+
+function Vec3.dot(self, other)
+ return glm.vec3_dot(self.data, other.data)
+end
+
+
+function Vec3.crossTo(self, other, dest)
+ glm.vec3_cross(self.data, other.data, dest.data)
+end
+function Vec3.cross(self, other)
+ local dest = Vec3()
+ self:crossTo(other, dest)
+ return dest
+end
+
+
+function Vec3.crossnTo(self, other, dest)
+ glm.vec3_crossn(self.data, other.data, dest.data)
+end
+function Vec3.crossn(self, other)
+ local dest = Vec3()
+ self:crossTo(other, dest)
+ return dest
+end
+
+
+function Vec3.norm2(self)
+ return glm.vec3_norm2(self.data)
+end
+function Vec3.norm(self)
+ return glm.vec3_norm(self.data)
+end
+
+
+function Vec3.normalize(self)
+ glm.vec3_normalize(self.data)
+end
+function Vec3.normalizeTo(self, dest)
+ glm.vec3_normalize_to(self.data, dest.data)
+end
+
+
+----------------------------------------
+
+local RowLookup = {}
+function RowLookup.new(_, row, data)
+ local self = {
+ row=row,
+ data=data,
+ }
+ setmetatable(self, RowLookup)
+ return self
+end
+setmetatable(RowLookup, {__call=RowLookup.new})
+function RowLookup.__index(self, col)
+ return glm.mat4_get(self.data, col-1, self.row-1)
+end
+function RowLookup.__newindex(self, col, value)
+ return glm.mat4_set(self.data, col-1, self.row-1, value)
+end
+
+
+--===== Mat4 =====--
+
+
+function Mat4.new(_, self, values)
+ local self = {}
+ self.type = "mat4"
+ self.data = glm.mat4_create()
+ setmetatable(self, Mat4)
+ if values then
+ self[1][1] = values[1]
+ self[1][2] = values[2]
+ self[1][3] = values[3]
+ self[1][4] = values[4]
+
+ self[2][1] = values[5]
+ self[2][2] = values[6]
+ self[2][3] = values[7]
+ self[2][4] = values[8]
+
+ self[3][1] = values[9]
+ self[3][2] = values[10]
+ self[3][3] = values[11]
+ self[3][4] = values[12]
+
+ self[4][1] = values[13]
+ self[4][2] = values[14]
+ self[4][3] = values[15]
+ self[4][4] = values[16]
+ end
+ return self
+end
+setmetatable(Mat4, {__call=Mat4.new})
+
+
+function Mat4.__index(self, key)
+ if type(key) == "number" then
+ return RowLookup(key, self.data)
+ else
+ return Mat4[key]
+ end
+end
+
+
+function Mat4.__tostring(self)
+ return string.format(
+ "/ %0.4f, %0.4f, %0.4f, %0.4f \\\n" ..
+ "| %0.4f, %0.4f, %0.4f, %0.4f |\n" ..
+ "| %0.4f, %0.4f, %0.4f, %0.4f |\n" ..
+ "\\ %0.4f, %0.4f, %0.4f, %0.4f /",
+ self[1][1], self[1][2], self[1][3], self[1][4],
+ self[2][1], self[2][2], self[2][3], self[2][4],
+ self[3][1], self[3][2], self[3][3], self[3][4],
+ self[4][1], self[4][2], self[4][3], self[4][4]
+ )
+end
+
+
+function Mat4.__mul(self, other)
+ if other.type == "mat4" then
+ local dest = Mat4()
+ glm.mat4_mul(self.data, other.data, dest.data)
+ return dest
+ elseif other.type == "vec4" then
+ -- todo
+ elseif other.type == "vec3" then
+ local dest = Vec3()
+ glm.mat4_mulv3(self.data, other.data, 1.0, dest.data)
+ return dest
+ else
+ error(string.format("cannot multiply Mat4 by %s", type(other)))
+ end
+end
+
+
+function Mat4.copy(self, other)
+ glm.mat4_copy(other.data, self.data)
+ return self
+end
+function Mat4.copyTo(self, dest)
+ glm.mat4_copy(self.data, dest.data)
+ return self
+end
+
+
+function Mat4.identity(self)
+ glm.mat4_identity(self.data)
+ return self
+end
+
+
+function Mat4.zero(self)
+ glm.mat4_zero(self.data)
+ return self
+end
+
+
+function Mat4.mul(self, other)
+ glm.mat4_mul(self.data, other.data, self.data)
+ return self
+end
+
+
+function Mat4.translate(self, vec)
+ glm.translate(self.data, vec.data)
+ return self
+end
+
+
+function Mat4.rotateX(self, angle)
+ glm.rotate_x(self.data, angle, self.data)
+ return self
+end
+function Mat4.rotateY(self, angle)
+ glm.rotate_y(self.data, angle, self.data)
+ return self
+end
+function Mat4.rotateZ(self, angle)
+ glm.rotate_z(self.data, angle, self.data)
+ return self
+end
+
+
+function Mat4.scale(self, vec)
+ glm.scale(self.data, vec.data)
+ return self
+end
+
+
+function Mat4.perspective(self, fovy, aspect, near, far)
+ glm.perspective(fovy, aspect, near, far, self.data)
+ return self
+end
+function Mat4.perspectiveResize(self, aspect)
+ glm.perspective_resize(aspect, self.data)
+ return self
+end
+
+
+--===== Quaternion =====--
+
+
+Quaternion.__index = Quaternion
+
+
+function Quaternion.new(_, tbl)
+ local tbl = tbl or { 0, 0, 0, 0 }
+ local self = {}
+ self.data = glm.quat_create()
+ glm.quat_init(self.data, unpack(tbl))
+ setmetatable(self, Quaternion)
+ return self
+end
+setmetatable(Quaternion, {__call=Quaternion.new})
+
+
+function Quaternion.toMat4(self)
+ local m = Mat4()
+ glm.quat_mat4(self.data, m.data)
+ return m
+end
+
+
+---------------------------
+
+
+return module
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